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JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20
LW 4x/2x/1x FC SFP with DDM
Features
* * * * * * * * * * * * * International Class 1 laser safety certified RoHS directive compliant (lead-free) 4x,2x,1x (ANSI) Fibre Channel [1] compliant Gigabit Ethernet Compatible Long wavelength (LW) JSH-42L3AD3-5 max. distance of 5 km JSH-42L3AD3-20 max. distance of 20 km Digital Diagnostic Monitoring Interface SFF8472 Compliant [5] EMI Emissions below Class B Single +3.3 V Power Supply -15C ambient to 85C case operation UL and CSA approved Optional interrupt on alarms and warnings
Applications
* * * * * * * * Fibre Channel Ethernet Networking Client/Server environments Distributed multi-processing Fault tolerant applications Visualization, real-time video, collaboration Channel extenders, data storage, archiving Data acquisition
Description
These JDSU SFPs are integrated fiber optic transceivers that provide a high-speed serial link at a signaling rate up to 4.25 Gb/s. They conform to the American National Standards Institute's (ANSI) Fibre Channel, and SFF-8472 specifications. The JSH-42L3AD3-5 supports a maximum fiber distance of 5 km and is available with blue color identification or gray color identificaiton (JSH-42L3AD35G). The JSH-42L3AD3-20 supports a maximum fiber distance of 20 km. These transceivers operate on singlemode fiber only. The transceiver is ideally suited for Fibre Channel applications which include point to point links as well as Fibre Channel Arbitrated Loop (FC-AL). It can also be used for other serial applications where high data rates are required. This specification applies to a hot-pluggable (SFP) module which is an electrical surface-mount connector assembly. The transceiver features a microprocessor with imbedded non-volatile RAM. Vital product data is stored in the NVRAM and several optical and electrical characteristics of the transceiver are computed "Real-Time" with the results written to memory. This data can all be accessed by a two-wire serial interface at the SFP connector. Encoded (8B/10B) [3], [4], serial differential signals traverse the connector interfacing the transceiver to the host card. The serial data modulates the laser and is sent out over the outgoing fiber of a duplex cable. The transceiver is a certified Class 1 laser safe product. The optical power levels, under normal operation, are at eye safe levels. Optical fiber cables can be connected and disconnected without shutting off the laser transmitter. The transceiver is also compliant with the RoHS Directive from the European Union - Directive 2002/95/EC on the Restriction Of use of certain Hazardous Substances. The largest change with optical transceivers comes with the removal of all lead-based parts and soldering. Now it is a lead-free part.
JDSU Product Specification 21111542-001 OCTOBER 2008
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JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
Package Outline
Pin Definitions
Pin # 1 2 3 4 5 6 7 8 9 10 Pin Name Tx Ground Tx_Fault Tx_Disable MOD_DEF(2) MOD_DEF(1) MOD_DEF(0) Reserved Rx_LOS Reserved Rx Ground Type Ground Signal Out Signal In Input/Output Input/Output Input/Output Signal In Signal Out Signal In Ground Sequence 1 3 3 3 3 3 3 3 3 1 Pin # 11 12 13 14 15 16 17 18 19 20 Pin Name Rx Ground -Rx_DAT +Rx_DAT Rx Ground Rx Power Tx Power Tx Ground +Tx_DAT -Tx_DAT Tx Ground Type Ground Data Out Data Out Ground Power Power Ground Data In Data In Ground Sequence 1 3 3 1 2 2 1 3 3 1
Laser Safety Compliance The JDSU transceiver is a CLASS 1 LASER PRODUCT as defined by the international standard IEC 60825-1, Am.2 (2001). The product also complies with U.S.A. regulations for Class 1 products contained in 21 CFR 1040.10 and 1040.11. Laser emissions from Class 1 laser products are not considered hazardous when operated according to product specifications. Operating the product with a power supply voltage exceeding 5.0 volts may compromise the reliability of the product, and could result in laser emissions exceeding Class 1 limits
identified in IEC 60825-1, Am.2 (2001); under these circumstances, viewing the transmitter port with optical aides (i.e., eye loupes) should be avoided.
ESD Notice It is advised that normal static precautions be taken in the handling and assembly of the transceiver to prevent damage and/or degradation which may be introduced by electrostatic discharge.
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Ordering Information
Part Number1 JSH-42L3AD3-5 JSH-42L3AD3-5G JSH-42L3AD3-20 Signaling Rate 1.0625 Gb/s, 2.125 Gb/s, or 4.25 Gb/s 1.0625 Gb/s, 2.125 Gb/s, or 4.25 Gb/s 1.0625 Gb/s, 2.125 Gb/s, or 4.25 Gb/s Wavelength 1310 nm 1310 nm 1310 nm Distance Supported2 5 km 5 km 20 km Laser Type FP (Fabry-Perot) FP (Fabry-Perot) DFB (Distributed Feedback)
1. All transceivers come with a Blue bail cover, except those that end with a "5G". "5G" come with a Gray bail cover. 2. When used with two JDSU transceivers.
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Block Diagram
Optical Receive Section Electrical
Optical Input Photoreceiver
Post-amp and LOS Detect
+Rx_DAT
-Rx_DAT
Rx_LOS Application_Select(0,1)
Vcc NVRAM MOD_DEF(0) Temp Indicator Average RX Power Monitor Mux 10b ADC
Two-Wire Interface
P
TX_FLT Soft as Interrupt DSBL
MOD_DEF(1) MOD_DEF(2)
TX Power Monitor
Laser Bias Monitor
Laser Output Laser AC Modulation +Tx_DAT
-Tx_DAT
Back Facet Feedback
DC Drive and Safety Control Fault Sense Transmit Section Tx_Disable Tx_Fault
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Transmit Section The input, an AC coupled differential data stream from the host, enters the AC Modulation section of the laser driver circuitry where it modulates the output optical intensity of a semiconductor laser. The DC Drive circuit incorporates an automatic power control (APC) loop which maintains the laser at the correct preset power level. In addition, safety circuits in the DC Drive will shut off the laser, or guarantee safe launch power if a fault is detected. The transceiver provides the AC coupling for the +Tx/-Tx lines. No AC coupling capacitors are required on the host card for proper operation. There are two outputs from the transmitter section that deliver signals proportional to the average transmitted optical power and also the laser average bias current. These signals are digitized and processed within the transceiver for the Digital Diagnostic Monitoring feature. Receive Section The incoming modulated optical signal is converted to an electrical signal by the photoreceiver. This electrical signal is then amplified and converted to a differential serial output data stream and delivered to the host. A signal strength detector indicates whether light is present or not at the input to the photoreceiver. This signal is provided to the host as a loss-of-signal (Rx_LOS) status line. The transceiver provides the AC coupling for the +Rx/-Rx lines. No AC coupling capacitors are required on the host card for proper operation. There is an output from the pre-amplifier in the photoreceiver that is proportional to the average optical power incident on the photodiode. This signal is digitized and processed within the transceiver as part of the Digital Diagnostic Monitoring feature. Digital Diagnostic Monitoring The digital diagnostic monitoring feature is compliant with document SFF-8472, "Digital Diagnostic Monitoring Interface for Optical Transceivers" [5]. In addition to transmitted optical power, laser-bias current and received optical power, there are also sensors for transceiver temperature and supply voltage which are all multiplexed to the analog-to-digital converter. After the signals are digitized, they are processed and compared to alarm levels for the optional alarm features and interrupts. The real-time values of each monitored parameter can be read and used for evaluating the status of the link. Also, the alarm/warning bits can be used to provide transceiver status or enable an interrupt notification. A user-writable non-volatile RAM scratch space for customer use is limited to 100,000 write cycles. Optional Monitor TX_FAULT Alarm/Warning Interrupt The transceiver provides programmable Alarm/Warning Interrupt Enable bits. They are used by the transceiver to generate a TX_FAULT signal usable as an interrupt to the host for an alarm/warning condition. This is an extension to the polling architecture of SFF-8472 and allows for interrupt driven host microcode. For a complete description see section "Vendor Specific Digital Diagnostic Monitor TX_FAULT Alarm/Warning Interrupt" on page 37.
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Input Signal Definitions
Levels for the signals described in this section are listed in Transmit Signal Interface on page 16 and Control Electrical Interface on page 17. Tx_DAT A differential serial data stream is presented to the transceiver for transmission onto an optical fiber by modulating the optical output intensity of the laser. Tx_Disable When high (logic one), the Tx_Disable signal turns off the power to both the AC and DC laser driver circuits. It will also reset a laser fault if one should happen. When low (logic zero), the laser will be turned on within 1ms unless a Tx_Fault condition exists. When this signal is asserted, the laser monitoring function will report low power and low bias current. The alarm/warning flags for these quantities will also become active. Additionally, the Tx_Disable indicator, bit 7 in byte 110 of the DDM page will become active. See Monitor Data Table 4 on page 35.
t_reset > 10 s Tx_Disable
Transmitter optical signal t_off < 10 s t_on < 1 ms
Application_Select (0:1) The transceiver provides multiple application selection capability in accordance with the SFF-8079+ and SFF8089[6]. The Application_Select pins control internal settings which configure the transceiver for optimal performance at a given data rate. The Application_Select(0) was previously labelled Rate Select and Application_Select(1) was an Rx Ground. Full software control based on the application select tables in the A0 page is also available. These pins are compatible with previous implementations of SFP transceivers.
Data Rate Application_Select(0) Application_Select(1) 4xFC (4.250 Gb/s) 0 or 1 or float 0 or 1 or float 2xFC (2.125 Gb/s) 0 or 1 or float 0 or 1 or float 1xFC (1.0625 Gb/s) 0 or 1 or float 0 or 1 or float GbE (1.250 Gb/s) Not applicable Not Applicable
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Output Signal Definitions
Levels for the signals described in this section are listed in Receive Signal Interface (from transceiver to host) on page 17 and Control Electrical Interface on page 17. Rx_DAT The incoming optical signal is converted and repowered as a differential serial data stream. The Receive Signal Interface (from transceiver to host) table on page 17 gives the voltage levels and timing characteristics for the Rx_DAT signals. Rx_LOS The Receive Loss of Signal line is high (logic one) when the incoming modulated light intensity is below that required to guarantee the correct operation of the link. Normally, this only occurs when either the link is unplugged or the companion transceiver is turned off. This signal is normally used by the system for diagnostic purposes. This signal has an open drain TTL driver. A pull up resistor is required on the host side of the SFF connector. The recommended value for this resistor is 10 k. Tx_Fault Upon sensing an improper power level in the laser or any other potentially unsafe condition, the SFF sets this signal high and turns off the laser. The Tx_Fault signal can be reset with the Tx_Disable line. The laser is turned off within 100 s as shown in the Transmitter Fault Detection timing diagram below. This signal has an open drain TTL driver. A pull up resistor is required on the host side of the SFF connector. The recommended value for this resistor is 10 k. Tx_Fault can also become active if the alarm/warning enable control bits are set within the 0xA2page. For a complete description see section "Vendor Specific Digital Diagnostic Monitor TX_FAULT Alarm/Warning Interrupt" on page 37. Output Signal Timings
Receive Loss of Signal Detection Transmitter Fault Detection
Occurrence of transmitter safety fault
Optical Signal
Signal Removed
Tx_Fault Rx_LOS Optical Power t_loss_on <100s t_loss_off <100s
t_fault <100s
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MOD_DEF(0:2) A two-wire serial interface is used to access two 256-byte memory spaces that describe some of the capabilities, standard interfaces, manufacturer, optical monitor levels, alarms and other information relevant to the product. Some of this space is protected and some is user writable. Also some of the space is non-volatile so that information is retained during unpowered conditions. Tables describing the specific addresses and values of the memory space are included in Two-Wire Interface Timing Specifications on page 23 and on page 31. Operation of the two-wire interface is described in Two-Wire Protocol for Serial ID and Digital Diagnostic Monitoring Information on page 11. Signal timings necessary for proper operation of the Serial ID function are shown in Two-Wire Interface Timing Specifications on page 23. The two-wire interface requires both a serial clock (SCL) and serial data I/O (SDA) connections. These signals are required to have pull up resistors on the host board to the 3.3V supplying the transceiver (4.7 k is the recommended value; however, a smaller value may be needed in order to meet the Serial ID's rise and fall time requirements). The following list and figure show the necessary connections from an interface to a SFF to ensure the capability of reading the Serial ID data. MOD_DEF(0): Logic Low MOD_DEF(1): SCL MOD_DEF(2): SDA The serial clock (SCL) and the serial data (SDA) lines appear as NC to the host system upon initial power up.
Expected Connections to SFF MOD_DEF Pins
MOD_DEF(0) SCL MOD_DEF(1) SDA MOD_DEF(2)
Interface
Host
SFF
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Operation
Initialization Timings
Tx_Disable De asserted Tx_Disable Asserted
Vcc > 3.0V Tx_Fault Tx_Disable
1 0
Vcc > 3.0V Tx_Fault Tx_Disable
Optical Transmit Signal t_init < 300 ms
Not Monitoring Monitoring
Optical Transmit Signal t_init < 300 ms
Not Monitoring
Monitoring
Two-Wire Interface Capable t_serial <= 250 ms
Two-Wire Interface Capable t_serial <= 250 ms
Two-Wire Interface Capable The transceiver will be capable of responding to a start sequence on the Two-Wire interface (see "Two-Wire Protocol for Serial ID and Digital Diagnostic Monitoring Information" on page 11) 250 ms after application of 3.0 volts, or greater up to maximum, at the voltage inputs of the transceiver. If a start sequence is transmitted by the host prior to 250 ms after power is good, the transceiver may not acknowledge the sequence.
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Resetting a Laser Fault Resetting a laser fault by toggling the Tx_Disable input will permit the transceiver to attempt to power on the laser following a fault condition. Fault Condition Recovery Timings
Successful Recovery from a Transmitter Safety Fault
Occurrence of transmitter safety fault Tx_Fault Tx_Disable
Unsuccessful Recovery from a Transmitter Safety Fault
Occurrence of transmitter safety fault Tx_Fault Tx_Disable Optical Power
Optical Power t_reset > 10 s *only if the fault is transient t_init* < 300 ms
t_reset > 10 s *only if the fault is transient
t_fault < 100 s t_init* < 300 ms
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Two-Wire Protocol for Serial ID and Digital Diagnostic Monitoring Information
Product specific information is stored in the device and is accessible via a standard two-wire interface. Some of the data is non-volatile and some is updated real time with data that characterizes critical conditions of the transceiver. While most registers are read only, some registers can be written by the customer for use as scratch space or to set interrupt enables or clear interrupt indicators. There are two data addresses which can be used to access two different sets of data. The page address 0b1010000X is used for the set of Serial ID data and the page address 0b1010001X is used for the set of Digital Diagnostic Monitoring information. Critical timings for communicating to the module on the two-wire interface are shown in Two-Wire Interface Figure 8 on page 14. For more information on the Serial ID protocol, see Two-Wire Interface Timing Specifications on page 23. Two-wire Data Read To read data from the device, the following sequence must occur on the Two-wire interface (refer to TwoWire Interface Figure 2 on page 13, Two-Wire Interface Figure 3 on page 13, and Two-Wire Interface Figure 4 on page 13 throughout these steps): 1. Send a start signal to the module. A start signal is presented by toggling the data line from high to low while the clock is high (see Two-Wire Interface Figure 2 on page 13). 2. Send the write data sequence. The write data sequence consists of the bits 0b10100000 for the Serial ID data or 0b10100010 for the Digital Diagnostic Monitoring information. 3. Receive an acknowledge signal. One zero bit is the acknowledge signal. Once this sequence has been acknowledged, the user will send the memory address to start reading from. 4. Send the address of the first byte to be read during the subsequent sequence. 5. Receive an acknowledge signal. 6. Send a start signal. 7. Send the read data sequence. The read data sequence consists of the bits 0b10100001 for the Serial ID data or 0b10100011 for the Digital Diagnostic Monitoring information. 8. Receive an acknowledge signal. Once this sequence has acknowledged, the user will begin receiving data bytes. 9. Receive a data byte. 10. Send an acknowledge signal to receive the next, consecutive data byte, or send a no-acknowledge signal followed by a stop signal to stop receiving data. A stop signal is presented by toggling the data line from low to high while the clock is high (see Two-Wire Interface Figure 2 on page 13).
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Two-wire Data Write To write data to the Digital Diagnostic Monitoring data address of the device (writes are not allowed to the Serial ID data address), the following sequence must occur on the Two-wire interface (refer to Two-Wire Interface Figure 1 on page 13, Two-Wire Interface Figure 2 on page 13, and Two-Wire Interface Figure 3 on page 13 throughout these steps): 1. Send a start signal to the module. A start signal is presented by toggling the data line from high to low while the clock is high (see Two-Wire Interface Figure 2 on page 13). 2. Send the data write sequence. The write data sequence consists of the bits 0b10100000 for the Serial ID data or 0b10100010 for the Digital Diagnostic Monitoring information. 3. Receive an acknowledge signal. One zero bit is the acknowledge signal. 4. Send the address of the first byte to be written during the subsequent sequence. Valid byte addresses are 0b01101110 for one byte, and byte addresses 0b10000000 thorough 0b11110111. 5. Receive an acknowledge signal. 6. Send a data byte. 7. Receive an acknowledge signal. 8. Send the next, consecutive data byte (reference Two-Wire Interface Figure 7 on page 14), or send a stop signal to stop sending data (reference Two-Wire Interface Figure 6 on page 14). A stop signal is presented by toggling the data line from low to high while the clock is high (see Two-Wire Interface Figure 2 on page 13).
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Two-Wire Interface Figure 1 Data transfer on the Two-wire interface
Acknowlegement signal from slave
SDA
MSB
SCL
1
2
3
8
9 ACK
1
2
8
9 ACK
start
stop
Two-Wire Interface Figure 2 Start and Stop TIming
SDA
SCL START STOP
Two-Wire Interface Figure 3 Set Data Address Sequence for Read Timing
Acknowledge from SFF SDA 1 SCL 0 S T A R T Byte entered to allow the user to set the starting address for a Serial ID data read. Data address to start reading data from. (Addr. 0 in this example, 0 through 255 available) S T A R T 0 1 0 0 0 0 0 A C K 0 Acknowledge from SFF A C K
0
0
0
0
0
0
0
Two-Wire Interface Figure 4 Read Data Sequence Timing
Acknowledge from SFF 1 SCL 0 1 0 0 0 0 1 The data line is normally high. It will remain high until an Acknowledge or a Stop command is sent. A C 1 0 0 1 1 0 1 0 K
SDA
S Byte entered to allow the T user to start reading data. A R (Sequence continued from Serial ID Figure 4.) T continued from Figure 3
An example data word. (9A in this example)
S T O P
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Two-Wire Interface Figure 5 Set Data Address Sequence for Write Timing
Acknowledge from SFF SDA 1 SCL 0 1 0 0 0 1 0 A C K Acknowledge from SFF A C K
1
0
0
0
0
0
0
0
S T A R T
Byte entered to allow the user to set the starting address for an Optical Monitoring data write.
Data address to start writing data to. (Address 128 in this example, 0 through 255 available)
Two-Wire Interface Figure 6 Write Data (Single-Byte) Sequence Timing
SDA 0 SCL 1 1 Acknowledge from SFF 0 0 1 0 1 A C K Note: The first byte after a start condition must always be the address byte for the transceiver (either A0 or A2 with the low order bit indicating write/read) or there will not be an acknowledge.
S T A R T
An example data word. (65 in this example) (Continued from Two-Wire Interface Figure 6.)
S T O P
Two-Wire Interface Figure 7 Write Data (Multi-Byte) Sequence Timing
SDA 0 SCL 1 1 Acknowledge from SFF 0 0 1 0 1 A C K 1 0 Acknowledge from SFF 0 1 1 0 1 A C K
S T A R T
An example data word. (65 in this example) (Continued from Two-Wire Interface Figure 6.)
An example data word. (9A in this example)
S T O P
Two-Wire Interface Figure 8 Critical Timings
Parameters are defined in Two-Wire Interface Timing Specifications on page 23.
tF SCL tSU.STA tHD.STA SDA IN tBUF tLOW tHD.DAT tSU.DAT tHIGH tLOW tR
tSU.STO
tAA SDA OUT
tDH
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Absolute Maximum Ratings
Symbol TS RHS VCC VI Parameter Storage Temperature Relative Humidity-Storage Supply Voltage TTL DC Input Voltage Non-Volatile Write Cycles Min. -40 0 -0.5 0 Typical Max. 85 90 5.0 VCC + 0.7 100,000 Unit C % V V cycles Notes 1 1, 2 1 1
1. Stresses listed may be applied one at a time without causing permanent damage. Exposure to these values for extended periods may affect reliability. Specification Compliance is only defined within Specified Operating Conditions. 2. Non-condensing environment.
Specified Operating Conditions
Symbol TOP TOP VCC RHOP Operating Temperature Operating Temperature2 Supply Voltage (+/- 10%) Relative Humidity-Operating Parameter Min. -15 -40 3.0 5 3.3 Typical Max. 851 -15 3.6 90 Unit C C V %
1. Case temperature 2. Compatible operation (BER<10-12)
Power Supply Interface
Symbol IVCC Parameter VCC Current (combined Tx and Rx) JSH-42L3AD3-20 VCC Current (combined Tx and Rx) JSH-42L3AD3-5 Total Power Dissipation (combined Tx and Rx) JSH-42L3AD3-20 Total Power Dissipation (combined Tx and Rx) JSH-42L3AD3-5 Ripple & Noise Min Typical 200 Max. 300 Unit mA
IVCC
240
300
mA
P
650
10001 10002 100
mW
P
800
mW mV (pk-pk)
1. At 3.3 volts 2. At 3.3 volts
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Transmit Signal Interface (from host to transceiver)
Symbol Vo DJelec-xmit TJelec-xmt Parameter Amplitude Deterministic Jitter Total Jitter Rise/Fall Differential Skew Input Return Loss SDD11 Return Loss 60 20 -11 -9 Min 300 Max. 2400 0.14 0.26 Unit mV UI UI ps ps dB dB 4 4 Notes 1 2 2 3
1. At 100, differential peak-to-peak, the figure below shows the simplified circuit schematic for the transceiver high-speed differential input lines. The input data lines have AC coupling capacitors. The capacitors are not required on the host card. +Tx_DAT 50 50 -Tx_DAT 2. Deterministic jitter (DJ) and total jitter (TJ) values are measured according to the methods defined in [2]. Jitter values at the output of a transmitter or receiver section assume worst case jitter values at its respective input. [1UI(Unit Interval)=235.3 ps at 4.25Gb/s] 3. Rise and fall times are measured from 20 - 80%, 100 differential. 4. At 2.125 GHz VDD 4.65 k 2 pF
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Receive Signal Interface (from transceiver to host)
Symbol Vo DJelec-rcv TJelec-rcv Parameter Amplitude Deterministic Jitter Total Jitter Common Mode Voltage (rms) SDD22 SCC22 Return Loss Return Loss Min 600 Max. 1600 0.39 0.64 30 -9 -7 Unit mV UI UI mV dB dB 4 4 Note(s) 1,2 3 3
1. At 100, differential peak-to-peak, the figure below shows the simplified circuit schematic for the transceiver high-speed differential output lines. The output data lines have AC coupling capacitors. The capacitors are not required on the host card. Rx_VDD 50 50 +Rx_DAT ... -Rx_DAT
Rx_Gnd 2. 600 mV Min for "AD3" part numbers. 3. Deterministic jitter (DJ) and total jitter (TJ) values are measured according to the methods defined in [2]. Jitter values at the output of a transmitter or receiver section assume worst case jitter values at its respective input. [1UI(Unit Interval)=235.3 ps at 4.25Gb/s]. 4. at 2.125 GHz
Control Electrical Interface
Symbol Voltage Levels VOL TTL Output (from transceiver) VOH VIL TTL Input (to transceiver) VIH VIL Serial ID SCL and SDA lines VIH Timing Characteristics 1. 2. 3. 4. 5. 6. A 4.7k - 10k pull-up resistor to VDD on host is required. A 10 k pull-up resistor to VDD is present on the transceiver. See Tx_Disable on page 6 and Operation on page 9 for timing relationships. See "Two-Wire Interface Capable" on page 9 See Operation on page 9. See Rx_LOS on page 7 for timing relations. VDD x 0.7 VDD + 0.5 V 2.0 0.0 VDD + 0.3 VDD x 0.3 V V 1 VDD - 0.5 0.0 VDD + 0.3 0.8 V V 2 0.0 0.50 V 1 Parameter Min Max. Unit Note(s)
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Control Electrical Interface
Symbol t_off t_on t_reset t_serial t_init t_fault t_loss_on t_loss_off 1. 2. 3. 4. 5. 6. Tx_Disable Assert time Tx_Disable De-assert time Tx_Disable (time to start reset) Two-Wire Initialization Time Initialization Time Tx_Fault Assert Time Rx_LOS Assert Delay Rx_LOS De-Assert Delay 10 250 300 100 100 100 Parameter Min Max. 10 1 Unit s ms s ms ms s s s Note(s) 3 3 3 4 5 5 6 6
A 4.7k - 10k pull-up resistor to VDD on host is required. A 10 k pull-up resistor to VDD is present on the transceiver. See Tx_Disable on page 6 and Operation on page 9 for timing relationships. See "Two-Wire Interface Capable" on page 9 See Operation on page 9. See Rx_LOS on page 7 for timing relations.
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JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
Optical Receiver Specifications
Symbol RL OMAop OMAop OMAop Poff Pon Parameter Operating Wavelength Return Loss of Receiver OMA operational range - 4.25 Gb/s OMA operational range - 2.125 Gb/s OMA operational range - 1.0625 Gb/s Rx_LOS Assert Level Rx_LOS De-Assert (negate) Level Rx_LOS Hysteresis BWRx Receiver Electrical 3 dB Upper Cutoff Frequency 0.5 2 Min 1270 12 29 15 15 -30 10 6 6 2000 2000 2000 -20 -20.5 5 5000 Typical Max. 1365 Unit nm dB W (pk-pk) W (pk-pk) W (pk-pk) dBm (avg) dBm (avg) dB (optical) MHz 1, 2 1, 2 1, 2 3 3 3 Notes
1. The minimum and maximum values of the average received power in dBm give the input power range to maintain a BER < 10-12 when the data is sampled in the center of the receiver eye. These values take into account power penalties caused by the use of a laser transmitter with a worst-case combination of spectral width, extinction ratio and pulse shape characteristics. 2. Optical Modulation Amplitude (OMA) is defined as the difference in optical power between a logic level one and a logic level zero. The Optical Modulation Amplitude is defined in terms of average optical power (PAVG in W) and extinction ratio (ER) as given by OMA=2PAVG((ER-1)/(ER+1)). The extinction ratio, defined as the ratio of the average optical power (in W) in a logic level one to the average optical power in a logic level zero measured under fully modulated conditions in the presence of worst case reflections, must be the absolute (unit less linear) ratio and not expressed in dB. For example, the specified OMA at 4.25 Gb/s is equivalent to an average power of -17.3 dBm at an ER of 9 dB. At 1.0625 Gb/s and 2.125 Gb/s, the specified OMA is equivalent to an average power of -20.2 dBm at an ER of 9 dB. Typical values below the minimum specification indicate margin beyond the specification. 3. The Rx_LOS has hysteresis to minimize "chatter" on the output line. In principle, hysteresis alone does not guarantee chatter-free operation. The transceiver, however, presents an Rx_LOS line without chatter, where chatter is defined as a transient response having a voltage level of greater than 0.5 volts (in the case of going from the negate level to the assert level) and of any duration that can be sensed by the host logic.
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Optical Transmitter Specifications
Symbol C C SMSR PT ER Trise/Tfall OMA OMA RIN12 Parameter Spectral Center Wavelength (JSH-42L3AD3-5) Spectral Center Wavelength (JSH-42L3AD3-20) Spectral Width (JSH-42L3AD3-5) Spectral Width (JSH-42L3AD3-20) Side Mode Supression Ratio (JSH-42L3AD3-20) Launched Optical Power Extinction Ratio Optical Rise/Fall Time (4.250 Gb/s) 190 290 -118 30 -8.4 6 90 -1.0 Min 1285 1300 Typical Max. 1350 1325 2.0 0.2 Unit nm nm nm (rms) nm (rms) dB dBm (avg) dB ps W (pk-pk) W (pk-pk) dB/Hz 2 3 3 4 1 Notes
Optical Modulation Amplitude (JSH-42L3AD3-5) Optical Modulation Amplitude (JSH-42L3AD3-20) Relative Intensity Noise
1. Launched optical power is measured at the end of a two meter section of a singlemode fiber. The maximum and minimum of the allowed range of average transmitter power coupled into the fiber are worst case values to account for manufacturing variances, drift due to temperature variations, and aging effects. The minimum launched optical power specified assumes an infinite extinction ratio at the minimum specified OMA. 2. Optical transition time is the time interval required for the rising or falling edge of an optical pulse to transition between the 20% and 80% amplitudes relative to the logical 1 and 0 levels. This is measured through a 4th order Bessel -Thompson filter with 0.75 * Data Rate 3-dB bandwidth and corrected to the full bandwidth value. Use of the 4G FC compliance filter results in an equivalent rise/fall time specification of 116 ps. 3. Optical Modulation Amplitude (OMA) is defined as the difference in optical power between a logic level one and a logic level zero. The Optical Modulation Amplitude is defined in terms of average optical power (PAVG in W) and extinction ratio (ER) as given by OMA=2PAVG((ER1)/(ER+1)). In this expression, the extinction ratio, the ratio of the average optical power (in W) in a logic level one to the average optical power in a logic level zero measured under fully modulated conditions in the presence of worst case reflections, must be the absolute (unit less linear) ratio and not expressed in dB. The specified Optical Modulation Amplitude is equivalent to an average power of -7.3 dBm at an extinction ratio of 9 dB. 4. RIN12 is the laser noise, integrated over a specified bandwidth, measured relative to average optical power with 12dB return loss. See ANSI Fibre Channel Specification Annex A.5.
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Optical Cable and Connector Specifications
Symbol Parameter Min Typical Max. Unit Notes
9/125 m Cable Specifications (Singlemode 1310nm) L L L L L L c Length - 4.25 Gb/s (JSH-42L3AD3-5) Length - 4.25 Gb/s (JSH-42L3AD3-20) Length - 2.125 Gb/s (JSH-42L3AD3-5) Length - 2.125 Gb/s (JSH-42L3AD3-20) Length - 1.0625 Gb/s (JSH-42L3AD3-5) Length - 1.0625 Gb/s (JSH-42L3AD3-20) Attenuation @ = 1310 nm 2 2 2 2 2 2 0.3 5000 20000 11000 28000 20000 28000 0.35 m m m m m m dB/km 2 2 2 2 2 2
LC Optical Connector Specifications (Multimode) con con Nominal Attenuation Attenuation Standard Deviation Connects/Disconnects 0.2 0.1 250 0.4 dB dB cycles 1 1 1
1. The optical interface connector dimensionally conforms to the industry standard LC type connector documented in [1]. A dual keyed LC receptacle mechanically aligns the optical transmission fiber to the SFP. 2. Distance stated is when two JDSU transceivers are used, one at each end of the link.
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Electrical Connector
Symbol Insertion/Removal Cycles Parameter Max. 100 Unit Cycles
Dust Plug / Aqueous Wash
A JDSU process/dust plug provided with the module must be in place for any dry-air cleaning processes. The module cannot be immersed in any cleaning solvents nor withstand an aqueous wash. Only the process/dust plug provided with the module is allowed. If the process/dust plug is not contaminated during non-installed use, it may be re-used.
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Two-Wire Interface Timing Specifications
Parameter Clock Frequency Clock Pulse Width Low Clock Pulse Width High Clock Low to Data Out Valid Initialization Time Time the data line must be free before a new transmission can start Start Hold Time Start Set-up Time Data In Hold Time Data In Set-up Time Inputs Rise Time Inputs Fall Time Stop Set-up Time Data Out Hold Time Vdd Hold Time for User Write Symbol fSID tLOW tHIGH tAA tserial tBUF tHD.STA tSU.STA tHD.DAT tSU.DAT tR tF tSU.STO tDH tVddH 4.7 100 25+(N x 10) 4.7 4.0 4.7 0 200 1.0 300 4.7 4.0 0.1 4.5 250 Min Max 100 Units kHz s s s ms s s s s ns s ns s ns ms Notes 1 1 1 1 3 1 1 1 1 1 1 1 1 1 2
1. See Two-Wire Interface Figure 8 on page 14 for timing relationships. See Two-Wire Protocol for Serial ID and Digital Diagnostic Monitoring Information on page 11 for information on protocol. 2. The Vdd supply to the transceiver must remain valid for 25 + (N x 10) ms, where N is the number of bytes desired to write to the scratch space (bytes 128-247 in 0xA2 address). For example: A single byte write will require 35 ms of valid supply voltage after the Stop bit for that instruction is completed. A sequential multi-byte write of the entire 120 bytes into the user scratch space will require the supply to remain valid for at least 1.23 s after the stop bit is completed. 3. The time from application of 3.0 V or greater Vdd supply at the transceiver voltage inputs to when the transceiver will be capable of responding to a start sequence on the two-wire interface.
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SFF 8472 Monitored Values
Parameter Received Optical Power Meter Dynamic Range Received Optical Power Meter Accuracy Transmitted Optical Power Meter Dynamic Range Transmitted Optical Power Meter Accuracy Laser Bias Current Meter Dynamic Range Laser Bias Current Meter Accuracy Power Supply Voltage Meter Dynamic Range Power Supply Voltage Meter Accuracy Transceiver Temperature Meter Dynamic Range Transceiver Temperature Meter Accuracy Min -20 -2.0 -9 -2.0 4.0 -0.90 2.8 -0.10 -40 -3 Max +1.0 +2.0 -1.0 +2.0 90 +0.90 4.5 0.10 100 +3 Units dBm dB dBm dB mA mA V V C C Notes 1 2,3 2 2 2 2 2 2 2 2
1. Actual optical power incident on the receiver. This range, when coupled with the accuracy specified means that the power meter can read from -18 dBm to +3 dBm when input optical power is in the range -16 dBm to +1 dBm. 2. When transceiver is operated within its specified temperature and power supply voltage dynamic operating ranges. 3. When optical input power is within the optical power meter specified dynamic operating range.
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Two-Wire Interface Memory Map
Below is a summary of the transceiver memory map. The transceiver provides multiple application selection capability in accordance with SFF-8079+[6]. Modifications to the memory map in support of this feature are to be determined. Additional details can be found in the sections that follow.
Address 0xA0
See Monitor Data Table 1 on page 28 0 0 Serial ID Defined by SFP MSA (96 bytes) See Serial ID Table 1 on page 28
Address 0xA2
See Monitor Data Table 1 on page 33 Alarm and Warning Thresholds (56 bytes) See Monitor Data Table 2 on page 35
55 56 95 96
Calibration constants (40 bytes)
Vendor Specific (32 bytes)
95 96 Real Time Diagnostic Interface (24 bytes) See Monitor Data Table 4 on page 36 119 120 Vendor Specific (8 bytes) 127 128 User Writable EEPROM (120 bytes)
127 128
Application Select Table (per SFF-8079 and SFF-8089 MSAs)
234 235
JDS Uniphase Data
247 248 255 Tx_Fault Alarm, Warning interrupt control. See detailed section on page 37.
255
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Serial ID Data Descriptions (Page/Device Address 0xA0)
All ID information is stored in eight-bit parameters addressed from 0x00 to 0x7F. All numeric information fields have the lowest address in the memory space storing the highest order byte. The highest order bit is always transmitted first. All numeric fields will be padded on the left with zeros. All character strings are ordered with the first character to be displayed located in the lowest address of the memory space. All character strings will be padded on the right with ASCII spaces (0x20) to fill empty bytes. Check Codes The check codes contained within the identification data are one byte codes that can be used to verify that the data in previous addresses is valid. CC_BASE check code is the lower eight bits of the sum of the contents of bytes 0-62. CC_EXT check code is the lower eight bits of the sum of the contents of bytes 64-94.
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Serial ID Table 1 Data Fields - Page/Device Address 0xA0
Data Address Field Size (Bytes) Value (Hex) Value (Binary) Value (ASCII) Name of Field Description of Field
Base ID Fields 0 1 2 3 4 5 6 8 7 8 9 10 11 12 13 14 1 1 1 1 12 0 01 15 01 2B 00 00010010 00000000 00000001 00010101 00000001 00101011 00000000 5 or 20 Encoding BR, nominal Reserved Fiber Length (singlemode) (km) Fiber Length (singlemode) (100m) Fiber Length (50/125m) (10m) Fiber Length (62.5/125m) (10m) Length (coppper) Reserved Link length supported for 9/125 m fiber in units of km Singlemode fiber 4G, 2G, 1G FC 8b/10b Encoding Nominal bit rate in units of 100 Mb/s. 1 1 1 03 04 07 00 00 00 00 00000011 00000100 00000111 00000000 00000000 00000000 00000000 Transceiver Codes Identifier Ext. Identifier Connector SFP transceiver Extended identifier of type of serial transceiver LC connector Reserved SONET SONET No GbE Compliance Long Distance Longwave Laser
00000101 05 or 14 or 00010100 00110010 32 or C8 or 11001000 00 00000000
15
1
50 or 200
Link length supported for 9/125 m fiber in units of 100 meters
16
1
Link length supported for 50/125 m fiber in units of 10 meters
17
1
00
00000000
Link length supported for 62.5/125 m fiber in units of 10 meters Link length supported for copper in units of meters
18 19
1 1
00 00
00000000 00000000
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Serial ID Table 1 Data Fields - Page/Device Address 0xA0
Data Address Field Size (Bytes) Value (Hex) 4A 44 53 20 55 4E 49 50 20-35 16 48 41 53 45 20 20 20 20 36 1 00 00 37-39 3 01 9C 00000000 00000000 00000001 10011100 Vendor OUI SFP transceiver vendor IEEE company ID H A S E (space) (space) (space) (space) Reserved Value (Binary) J D S (space) U N I P Vendor name SFP transceiver vendor name (ASCII) Value (ASCII) Name of Field Description of Field
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Serial ID Table 1 Data Fields - Page/Device Address 0xA0
Data Address Field Size (Bytes) Value (Hex) 4A 53 48 2D 34 32 4C 33 40-55 16 41 44 33 2D 35 20 20 20 20 20 56-59 4 20 20 05 60-61 62 63 2 1E 1 1 00 00011110 00000000 Reserved CC_BASE Check code for Base ID Fields (addresses 0 to 62) 00100000 (space) 00100000 (space) 00000101 Wavelength Wavelength of the laser in nm with byte 60 as MSB. (1310 nm) Value (Binary) 01001010 J 01010011 S 01001000 H 00101101 00110100 4 00110010 2 01010011 L 00110101 3 01000001 A 01000010 D 00110010 3 00101101 00110101 5 or 2 00100000 space, 0 or G Vendor Part Number Part number provided by the SFP transceiver vendor (ASCII) Value (ASCII) Name of Field Description of Field
00100000 (space) 00100000 (space) 00100000 (space) 00100000 (space) Vendor revision Revision level for part number provided by vendor (ASCII)
Extended ID Fields 00 64-65 66 67 68-83 84-91 2 1A 1 1 16 8 05 05 00011010 00000101 00000101 BR, maximum BR, minimum Vendor Serial Number Date Code Upper bit rate margin, units of percent (5%) Lower bit rate margin, units of percent (5%) Serial number provided by the vendor (ASCII) Vendor's manufacturing date code 00000000 Options Tx_Disable, Tx_Fault, Loss of Signal all implemented
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Serial ID Table 1 Data Fields - Page/Device Address 0xA0
Data Address Field Size (Bytes) Value (Hex) Value (Binary) Value (ASCII) Name of Field Digital Diagnostic Options Enhanced Options SFF-8472 Compliance CC_EXT Description of Field
92
1
68
01101000
DDM Implemented, Internally calibrated, Rx power measurement type is average power Optional warning flags implemented, Soft Tx_Disable, Soft Tx_Fault, Soft Rx_LOS Includes functionality described in Rev 9.5 SFF-9472 Check code for the Extended ID Fields (addresses 64-94)
93
1
F0
11110000
94 95
1 1
01
00000010
Vendor Specific ID Fields "MICROCODE COPYRIGHT 2002 JDSU"
96-127
32
Read Only
Vendor specific data, read only
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Application Select Tables
The Application Select Tables contain information that allows the host system to control internal settings which configure the transceiver for optimal perfromance at a given data rate. The different application codes are selected via byte 111 in the A2 page. To select one of the application codes, bit 7 in byte 111 is set to 1 and bit 5:0 are set to the desired application table. The contents of the Application codes are compliant to the Application_Select MSAs SFF-8079 and SFF-8089.
Application Select Table
Byte Address 128 129 Length (bytes) 1 bits (7:6) Name of Field CC_APPS Reserved A 6-bit binary number, TL, that specifies how many application table entries are defined in bytes 130 - 255 addresses. TL is valid between 0 (one entry) and 51 (for a total of 52 entries). Description Check code for the Application Select Table. The check code is the low order 8 bits of the sum of the contents of all the bytes from byte 129 to byte 255.
129
bits (5:0)
AST Table Length, TL
130 132 134 232
2 2 2 2
Application Code 0 Application Code 1 Application Code 2 Application Code 52
JDSU Transceiver Data
Data Addresses 235 239 243 247 251 Field Size (Bytes) 4 4 4 4 4 Name of FIelds Description
Digital Diagnostic Monitor Data Descriptions (Page/Device Address 0xA2)
The Monitor Data ID tables that follow describe the data contained in the 256 bytes of Page/Device Address 0xA2. Monitor Data Table 1 is a summary of all of the data fields in the Monitor Data section of the memory. Monitor Data Table 2 on page 34 and Monitor Data Table 4 on page 35 provide more detailed translations of data words for some of the data fields. To guarantee coherency of the diagnostic monitoring data, the host is required to retrieve any multi-byte fields from the diagnostic monitoring data structure by the use of a single multi-byte read sequence across the
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serial interface. Monitor Data Table 1 Data Fields Summary- Page/Device Address 0xA2
Byte Address 0-55 56-95 96-119 120-127 128-247 248-255 Length (Bytes) 56 40 24 8 120 8 Description of Fields Manufacturer's preset alarm and warning threshold levels. Polynomial constants for externally processing raw A/D digital values. (default to Zero for Internally Calibrated parts, Serial ID Byte 92, Bit 5 set to one) Real time diagnostic data, alarms, warnings and soft control bits. Vendor specific.
User writable non-volatile scratch space. Tx_Fault Alarm/Warning Interrupt Contol Bits
Internal Calibration This transceiver contains internally calibrated values such that the values should be interpreted as follows: Temperature: The temperature data is the internal transceiver temperature. The temperature is represented as a 16-bit signed twos complement value in increments of 1/256 C. This yields a value from -128 to +128 C but is only valid if within the operating specifications of the transceiver. Temperature accuracy is +/- 3 C. Voltage: The voltage data will be calibrated to the internally measured Transmit VDD supply. The voltage is represented as a 16-bit unsigned integer with the voltage equal to the full 16-bit decimal value (0 to 65535)*100 V. This yields a total range of 0 to 6.55 volts but is only valid if within the operating specifications of the transceiver. Accuracy is +/-3% of nominal voltage (3.3 +/- 0.10 V) TX Bias: The TX Bias data is calibrated to reflect the average current biasing the laser diode. The TX Bias is represented as a 16-bit unsigned integer with the current value equal to the full 16-bit decimal value (0 to 65535)*2 A. This yields a total range of 0 to 131mA but is only valid if within the operating specifications of the transceiver. Accuracy is +/-10% of nominal value over specified operating temperature and voltage. TX Power: The TX Power data is calibrated to reflect the average power coupled into a nominal fiber [7]. The accuracy takes into account the fiber to fiber variation and also calibration test equipment accuracies. The TX Power is represented as a 16-bit unsigned integer with the power value equal to the full 16-bit decimal value (0 to 65535)*0.1 W. This yields a total range of 0 to 6.55 mW but is only valid if within the operating specifications of the transceiver. Data is not valid when the transmitter is disabled. Accuracy is +/-2 dB over specified operating voltage and temperature. RX Power: RX Power data is calibrated to reflect the average optical power exiting the ferrule of a nominal fiber[7]. The accuracy takes into account the fiber to fiber variation and also calibration test equipment accuracies. The RX Power is represented as a 16-bit unsigned integer with the power value equal to the full 16-bit decimal value (0 to 65535)*0.1 W. This yields a total range of 0 to 6.55 mW but is only valid if within the operating specifications of the transceiver. Accuracy is +/- 2dB over specified operating voltage and temperature.
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Digital Diagnostic Monitor Data Offsets The Digital Diagnostic Monitor Data page is a single 256-byte page with regard to read and write access offsets. There are no mini-page sections within the 256-byte space. Contiguous, sequential accesses, without modifying the offset, will cycle through offsets 0 to 255 then return to offset 0. Digital Diagnostic Monitor Data Write Access The Digital Diagnostic Monitor Data page contains an area defined as a user writable, non-volatile scratch space, that can be written to by the user, and which will be non-volatile across power cycles and resets. This space can be accessed sequentially and contiguously within the offsets defined for it (refer to Monitor Data Table 1 on page 32). If during the course of a sequential, multi-byte write, the offset being written reaches the end of the user writable space, the next byte of data will be a write attempt to the vendor specific area.
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Monitor Data Table 2 Alarm and Warning Threshold Levels
Byte Address 0-1 2-3 4-5 6-7 8-9 10-11 12-13 14-15 16-17 18-19 20-21 22-23 24-25 26-27 28-29 30-31 32-33 34-35 36-37 38-39 40-55 Length (Bytes) 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 16 Factory Programmed Value In Units Specified by SFF8472 Standard 0x5F00 0xDD00 0x5A00 0xE200 0x8DCC 0x7404 0x8BD8 0x75F8 0xA604 0x0BB8 0x9C40 0x0FA0 0x1F07 0x0630 0x1BA7 0x07CB 0x1F07 0x009E 0x1BA8 0x00C7 95 -35 90 -30 3.63 V 2.97 V 3.58 V 3.02 V 85.0 mA 6.0 mA 80.0 mA 8.0 mA 0.7943 mW 0.1585 mW 0.7080 mW 0.1995 mW 0.7943 mW 0.0158 mW 0.7080 mW 0.0199 mW -1 dBm -8.0 dBm -1.5 dBm -7.0 dBm -1.0 dBm -18.0 dBm -1.5 dBm -17 dBm Factory Programmed Equivalent Value
Name Temp High Alarm Temp Low Alarm Temp High Warning Temp Low Warning Voltage High Alarm Voltage Low Alarm Voltage High Warning Voltage Low Warning Bias High Alarm Bias Low Alarm Bias High Warning Bias Low Warning TX Power High Alarm TX Power Low Alarm TX Power High Warning TX Power Low Warning RX Power High Alarm RX Power Low Alarm RX Power High Warning RX Power Low Warning Reserved
Byte Alignment MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address MSB at low address .
Monitor Data Table 3 Digital Diagnostic Check Sum Byte.
Byte Address 95 Length (Bytes) 1 Checksum Name Description of Fields The lower eight bits of the sum of the contents of bytes 0-94.
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Monitor Data Table 4 Diagnostic Data Values, Alarms, Warnings and Status Bits
Byte Address 96-97 98-99 100-101 102-103 104-105 106-109 110 110 110 110 110 110 110 110 111 111 Bit All All All All All All 7 6 5 4 3 2 1 0 7:6 5:0 Name Temperature Value1 Voltage Value1 TX Bias Value1 TX Power Value1 RX Power Value1 Reserved TX Disable State Soft TX Disable AS1 State RX Rate Select AS0 State Soft Rate Select TX Fault LOS Data Ready Bar1,2 Control Mode Table Select (TS) Temp High Alarm 1,3 Temp Low Alarm 1,3 Voltage High Alarm 1,3 Voltage Low Alarm 1,3 TX Bias High Alarm 1,3 Description of Fields Internal Transceiver Temperature (MSB at low address) TX VDD Voltage (MSB at low address) Laser Diode Average Current (MSB at low address) Average Fiber Coupled Power (MSB at low address) Average Received Power (MSB at low address) Reserved for future MSA monitored parameters. State of TX Disable input pin Read/Write bit that allows software disable of laser. Writing a `1' disables the laser. Default power value is `0'. This bit is internally OR'ed with the hard TX_DISABLE pin value. Digital state of AS1 input pin. Digital state of rate_select input pin. Not Applicable State of TX Fault output pin. Sate of LOS output pin. Indicates transceiver has achieved power and Digital Diagnostic data is ready to be read. Not Applicable For soft application_select, a 6-bit binary number (TS) that represents the sequence of the Application code in the AST. It is written by the host for select module behavior. Set when internal temperature exceeds the bytes 0-1 level. Set when internal temperature is below the bytes 2-3 level. Set when TX VDD exceeds the bytes 8-9 level. Set when TX VDD is below the bytes 10-11 level. Set when Laser Diode Current exceeds the bytes 16-17 level.
112 112 112 112 112
7 6 5 4 3
1. The Digital Diagnostic Monitoring values and Alarm/Warning indicators will be set to zero, and Data Ready Bar will be set high, for certain failure mechanisms within the transceiver that do not affect the link capability of the transceiver. Refer to Vendor Specific Digital Diagnostic Monitor TX_FAULT Alarm/Warning Interrupt on page 37 for additional information on transceiver Digital Diagnostic Monitoring status. 2. The data ready bar bit is held high during module power up and prior to the first transceiver sampling of the monitored values. The bit will be set low after each first successful sampling occurs and remain low until the transceiver looses power or a failure occurs. The bit must be set low within 1 second of reaching a valid stable power supply level. 3. Bytes 112-119 contain a set of non-latched alarm and warning flags. Users can choose to read these values and use them to analyze the status of the transceiver as an alternative to decoding the real-time values in bytes 96-105. Alarm flags indicate levels that are likely to be associated with link failures. Warning flags indicate levels that are outside of normal levels, but not necessarily cause for immediate concern (could be used for end-of-life indicators). 4. The Vendor Specific area is further defined below in Vendor Specific Digital Diagnostic Monitor TX_FAULT Alarm/Warning Interrupt on page 37.
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Monitor Data Table 4 Diagnostic Data Values, Alarms, Warnings and Status Bits
Byte Address 112 112 112 113 113 113 114-115 116 116 116 116 116 116 116 116 117 117 117 118-119 120-127 Bit 2 1 0 7 6 5-0 All 7 6 5 4 3 2 1 0 7 6 5-0 All All Name TX Bias Low Alarm 1,3 TX Power High Alarm 1,3 TX Power Low Alarm 1,3 RX Power High Alarm 1,3 RX Power Low Alarm 1,3 Reserved Reserved Temp High Warning 1,3 Temp Low Warning1, 3 Voltage High Warning 1,3 Voltage Low Warning 1,3 TX Bias High Warning 1,3 TX Bias Low Warning 1,3 TX Power High Warning1, 3 TX Power Low Warning 1,3 RX Power High Warning 1,3 RX Power Low Warning 1,3 Reserved Reserved Vendor Specific
4
Description of Fields Set when Laser Diode Current is below the bytes 18-19 level. Set when Avg. Fiber Coupled Power exceeds the bytes 24-25 level. Set when Avg. Fiber Coupled Power is below the bytes 26-27 level. Set when Avg. Received Power exceeds the bytes 32-33 level. Set when Avg. Received Power is below the bytes 34-35 level. Reserved Reserved Set when internal temperature exceeds the bytes 4-5 level. Set when internal temperature is below the bytes 6-7 level. Set when TX VDD exceeds the bytes 12-13 level. Set when TX VDD is below the bytes 14-15 level. Set when Laser Diode Current exceeds the bytes 20-21 level. Set when Laser Diode Current is below the bytes 22-23 level. Set when Avg. Fiber Coupled Power exceeds the bytes 28-29 level. Set when Avg. Fiber Coupled Power is below the bytes 30-31 level. Set when Avg. Received Power exceeds the bytes 36-37 level. Set when Avg. Received Power is below the bytes 38-39 level. Reserved Reserved Vendor Specific
1. The Digital Diagnostic Monitoring values and Alarm/Warning indicators will be set to zero, and Data Ready Bar will be set high, for certain failure mechanisms within the transceiver that do not affect the link capability of the transceiver. Refer to Vendor Specific Digital Diagnostic Monitor TX_FAULT Alarm/Warning Interrupt on page 37 for additional information on transceiver Digital Diagnostic Monitoring status. 2. The data ready bar bit is held high during module power up and prior to the first transceiver sampling of the monitored values. The bit will be set low after each first successful sampling occurs and remain low until the transceiver looses power or a failure occurs. The bit must be set low within 1 second of reaching a valid stable power supply level. 3. Bytes 112-119 contain a set of non-latched alarm and warning flags. Users can choose to read these values and use them to analyze the status of the transceiver as an alternative to decoding the real-time values in bytes 96-105. Alarm flags indicate levels that are likely to be associated with link failures. Warning flags indicate levels that are outside of normal levels, but not necessarily cause for immediate concern (could be used for end-of-life indicators). 4. The Vendor Specific area is further defined below in Vendor Specific Digital Diagnostic Monitor TX_FAULT Alarm/Warning Interrupt on page 37.
JDSU Product Specification 21111542-001
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JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
Vendor Specific Digital Diagnostic Monitor TX_FAULT Alarm/Warning Interrupt The transceiver has the ability to be programmed to indicate TX_FAULT when one of the five DDM signals goes outside an alarm or warning threshold. This allows the customer the option of using the TX_FAULT as an interrupt instead of constantly polling the diagnostic signals. The TX_FAULT Alarm/Warning interrupt control bytes are accessible as one of the selectable tables in the Vendor specific area at offset 248-255. To enable the TX_FAULT as an Alarm/Warning, use the following procedure: This alarm/warning interrupt enable/latch space will be volatile across power-cycles and resets. This space can be accessed sequentially and contiguously within the offsets defined for it. If during the course of a sequential, multi-byte write, the offset being written reaches the end of this vendor specific area, the next byte of data that will be attempted to be written will be at offset 0. The Alarm/Warning Interrupt Enable bits are written by the host. They are used by the transceiver to generate a TX_FAULT signal usable as an interrupt to the host for an alarm/warning condition. The general definition of the function is that when the host sets an Interrupt Enable bit (offsets 248-251) for an Alarm/Warning to 0b1, then the corresponding Alarm/Warning Latch bit (offsets 252-255) will be latched to 0b1 when the corresponding Alarm/Warning bit (Alarm bits at offsets 112-113 and Warning bits at offsets 116-117) becomes active. The Alarm/Warning Latch bit will remain 0b1 until the host clears the Latch bit by writing a 0b1 to it, at which time the transceiver will re-process the Latch bit. While any of the Alarm/Warning Latch bits are a 0b1, the transceiver will set the TX_FAULT signal active.
Note: When used in the Alarm/Warning Interrupt mode, the TX_FAULT signal does not necessarily indicate that the transceiver is not transmitting. When TX_FAULT becomes active, the host should disable all Alarm/Warning Interrupt Enable bits and clear all Alarm/Warning Latch bits In order to determine whether there is a hardware TX_FAULT that does indicate hardware transmission loss.
Monitor Data Table 9 Alarm/Warning Enables and Latches
Byte Address 248 248 248 248 248 248 248 248 249 249 249 250 Bit 7 6 5 4 3 2 1 0 7 6 5-0 7 Name Temp High Alarm Interrupt Enable 1 Temp Low Alarm Interrupt Enable 1 Voltage High Alarm Interrupt Enable 1 Voltage Low Alarm Interrupt Enable 1 TX Bias High Alarm Interrupt Enable 1 TX Bias Low Alarm Interrupt Enable 1 TX Power High Alarm Interrupt Enable 1 TX Power Low Alarm Interrupt Enable 1 RX Power High Alarm Interrupt Enable 1 RX Power Low Alarm Interrupt Enable 1 Reserved Temp High Warning Interrupt Enable 1 Description of Fields Enable bit for the temperature high alarm. Enable bit for the temperature low alarm. Enable bit for the voltage high alarm. Enable bit for the voltage low alarm. Enable bit for the laser current high alarm. Enable bit for the laser current low alarm. Enable bit for the fiber coupled power high alarm. Enable bit for the fiber coupled power low alarm. Enable bit for the received power high alarm. Enable bit for the received power low alarm. Reserved Enable bit for the temperature high warning.
JDSU Product Specification 21111542-001 OCTOBER 2008
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JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
Byte Address 250 250 250 250 250 250 250 251 251 251 252 252 252 252 252 252 252 252 253 253 253 254 254 254 254 254 254 254 254 255 255 255
Bit 6 5 4 3 2 1 0 7 6 5-0 7 6 5 4 3 2 1 0 7 6 5-0 7 6 5 4 3 2 1 0 7 6 5-0
Name Temp Low Warning Interrupt Enable 1 Voltage High Warning Interrupt Enable 1 Voltage Low Warning Interrupt Enable 1 TX Bias High Warning Interrupt Enable 1 TX Bias Low Warning Interrupt Enable 1 TX Power High Warning Interrupt Enable 1 TX Power Low Warning Interrupt Enable 1 RX Power High Warning Interrupt Enable 1 RX Power Low Warning Interrupt Enable 1 Reserved Temp High Alarm Latch 2 Temp Low Alarm Latch 2 Voltage High Alarm Latch 2 Voltage Low Alarm Latch 2 TX Bias High Alarm Latch 2 TX Bias Low Alarm Latch 2 TX Power High Alarm Latch 2 TX Power Low Alarm Latch 2 RX Power High Alarm Latch 2 RX Power Low Alarm Latch 2 Reserved Temp High Warning Latch 2 Temp Low Warning Latch 2 Voltage High Warning Latch 2 Voltage Low Warning Latch 2 TX Bias High Warning Latch 2 TX Bias Low Warning Latch 2 TX Power High Warning Latch 2 TX Power Low Warning Latch 2 RX Power High Warning Latch 2 RX Power Low Warning Latch 2 Reserved
Description of Fields Enable bit for the temperature low warning. Enable bit for the voltage high warning. Enable bit for the voltage low warning. Enable bit for the laser current high warning. Enable bit for the laser current low warning. Enable bit for the fiber coupled power high warning. Enable bit for the fiber coupled power low warning. Enable bit for the received power high warning. Enable bit for the received power low warning. Reserved Latched bit for the temperature high alarm. Latched bit for the temperature low alarm. Latched bit for the voltage high alarm. Latched bit for the voltage low alarm. Latched bit for the laser current high alarm. Latched bit for the laser current low alarm. Latched bit for the fiber coupled power high alarm. Latched bit for the fiber coupled power low alarm. Latched bit for the received power high alarm. Latched bit for the received power low alarm. Reserved Latched bit for the temperature high warning. Latched bit for the temperature low warning. Latched bit for the voltage high warning. Latched bit for the voltage low warning. Latched bit for the laser current high warning. Latched bit for the laser current low warning. Latched bit for the fiber coupled power high warning. Latched bit for the fiber coupled power low warning. Latched bit for the received power high warning. Latched bit for the received power low warning. Reserved
JDSU Product Specification 21111542-001
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OCTOBER 2008
JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
Byte Address
Bit
Name
Description of Fields
1. The alarm/warning interrupt enable bits are writable by the host to either 0b0 or 0b1. Their default value after a reset is 0b0. To enable multiple bits, the host must write the byte at the appropriate offset with a value that is an OR of all bits that are to be set to the interrupt enabled state. 2. The alarm/warning latch bits are only set to 0b1 by the transceiver, but can be cleared to 0b0 by the host writing a 0b1 to the appropriate bit position. Only those bits that are written to 0b1 will be cleared. Upon clearing a bit, the transceiver will re-process the Latch bit, and if the corresponding alarm/warning bit is still active, and the corresponding interrupt enable bit is still set to 0b1, the Latch bit will remain set to 0b1, thus causing TX_FAULT to remain active.
JDSU Product Specification 21111542-001 OCTOBER 2008
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JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
Mechanical Description Package Diagram
Units are in millimeters.
13.4 0.1
6.25 (4X)2 MAX 13.7 0.1 45 0.2 2.45 MIN 41.8 0.15 2.6 MAX 9.2 0.1 55 0.25
JDSU Product Specification 21111542-001
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OCTOBER 2008
JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
Host Card Footprint (Page 1 of 2)
Units are in millimeters.
JDSU Product Specification 21111542-001 OCTOBER 2008
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JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
Host Card Footprint (Page 2 of 2)
Units are in millimeters.
JDSU Product Specification 21111542-001
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OCTOBER 2008
JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
Suggested Transceiver/Host Interface
1uH
+3.3 volt
+
0.1uF
1uH
0.1uF
10uF
Protocol Vcc
SFP
VccT
16
4.7k to 10kohm
Protocal VCC
10kohm
Tx_Disable 3
TX+
+TD 18
0.01uF
TX-
-TD 19
100 ohm 0.01uF
Laser Driver
Tx_Fault 2 VeeT 20
ASIC SERDES VccR
+
10uF 0.1uF 15
RX+
+RX 13
0.01uF
100 ohm
RX-
-RX
12
0.01uF
Receiver Amplifier
4.7k to 10kohm
Rx_LOS 8 Rate Select 7 VeeR 11
Serial ID
4.7k to 10kohm
+3.3 volt 6 5 4
MOD_DEF(0) PLD/PAL MOD_DEF(1) MOD_DEF(2)
JDSU Product Specification 21111542-001 OCTOBER 2008
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JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
References
Standards 1. American National Standards Institute Inc. (ANSI), T11/Project 1235-DT/Rev 13, Fibre Channel-Physical Interface (FC-PI-2 rev. 7). Drafts of this standard are available to members of the standards working committee. For further information see the T11.2 website at www.t11.org. 2. American National Standards Institute Inc. (ANSI), T11.2/Project 1230/Rev10, Fibre Channel-Methodologies for Jitter Specifications (MJS). Drafts of this standard are available to members of the standards working committee. For further information see the T11.2 website at www.t11.org. Industry Specifications 3. A.X. Widmer and P.A. Franaszek, "A DC-Balanced, Partitioned-Block, 8B/10B Transmission Code," IBM Journal of Research and Development, vol. 27, no. 5, pp. 440-451, September 1983. This paper fully defines the 8B/10B code. It is primarily theoretical. 4. A.X. Widmer, The ANSI Fibre Channel Transmission Code, IBM Research Report, RC 18855 (82405), April, 23 1993. Copies may be requested from: Publications IBM Thomas J. Watson Research Center Post Office Box 218 Yorktown Heights, New York 10598 Phone: (914) 945-1259 Fax: (914) 945-4144 5. SFF Document Number: SFF-8472, revision 9.4 "Digital Diagnostic Monitoring Interface for Optical Transceivers," August 1, 2002. This document defines features of the 512 bytes of RAM space accessible by the two-wire interface. 6. SFF Document Number: SFF-8079+, Revision 1.1, "SFP Form Factor (Small Form Factor Pluggable) Rate Select Functionality and Multiple Application Selection Capability", November 19,2003. Production Notes 7. The fiber type used for the calibration of Tx and Rx power monitoring functions is a singlemode fiber.
JDSU Product Specification 21111542-001
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OCTOBER 2008
JSH-42L3AD3-5, JSH-42L3AD3-5G JSH-42L3AD3-20 LW 4x/2x/1x FC SFP with DDM
All statements, technical information and recommendations related to the products herein are based upon information believed to be reliable or accurate. However, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any inaccuracies. The user assumes all risks and liability whatsoever in connection with the use of a product or its application. JDSU reserves the right to change at any time without notice the design, specifications, function, fit or form of its products described herein, including withdrawal at any time of a product offered for sale herein. JDSU makes no representations that the products herein are free from any intellectual property claims of others. Please contact JDSU for more information. JDSU and the JDSU logo are trademarks of JDS Uniphase Corporation. Other trademarks are the property of their respective holders. Copyright JDS Uniphase Corporation. All rights reserved. The SFP module described herein contains microcode which is Copyright 2008, JDS Uniphase Corporation. The purchaser is granted a limited license to use the microcode for the purposes described in this specification. The microcode remains the property of JDSU and may not be decoded, reverse compiled, altered, extracted from the module storage device, copied, redistributed, or reused without the express written consent of JDSU.
JDSU Product Specification 21111542-001 OCTOBER 2008
Page 45 of 45

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