features combined ac+dc converter for isdn nt1+ application uo interface (dc) and main (ac) in- puts to enable npm (normal power mode) and rpm (restricted power mode) conditions input filter to meet emc require- ments 5 insulated main outputs peak input overvoltage withstand- ing input fuse on ac main input inputs to outputs insulation auxiliary logic output ttl-compat- ible for npm/rpm mode indication (em signal & green led). 3ma output source current auxiliary logic output ttl-compat- ible for u-interface detection (red led). 3ma output source current auxiliary logic output ttl-compat- ible for auto setting to isdn or analog phone connection to u-in- terface (relay). 3ma output source current internal relay function for vo1 po- larity reverse analog outputs emergency condi- tion programmable via external command, ttl compatible, 1ma sink current u-interface according to etr 080 with external capacitor description the nt1+/ur2 power management module is a comprehensive solution for isdn-nt1 "plus" (network termination basic access type plus) equipment, combining both ac-dc and dc-dc functions. the nt1+ power management module (nt1+ pmm) provide the nt1+ equipment with all nec- essary supply voltages as well as control signals to operate in the different operating modes, typi- cally the normal power mode (npm) and the re- stricted power mode (rpm). connected to the main, input 1 is the ac input power to the nt1+ pmm, source of the whole necessary power in normal operating mode, namely in npm. input 2 is the dc power source when in rpm, therefore to connect to the u-inter- face. when the main is available (230 vac in this ver- sion) nt1+ pmm operate in normal power mode, therefore it supply +40v (output 1) to the s-inter- face being the output power 4.5 w. output 2 de- livers 5v (up to 720mw) for the logics and output 3 delivers -21v (up to 900 mw). out voltage 4 is -50v with 100 mw output power. last, output 5 delivers -150v and the output power can reach peaks of 700 mw. when the main is missing, the module remains active but only in restricted power mode (rpm). the only power source in rpm is the input 2, the u-interface (vi2). therefore in rpm the following condition apply to outputs 1 and 2: output 1 re- verses the voltage (it becomes -40v) and the maximum power pout is reduced to 420 mw. p2max is reduced to 450 mw typically, however the output power available at outputs 2,3,4,5 mainly depend on input power available from the "u interface" vi2, therefore subject of variation as per local application and regulation. in rpm it is also possible to set a different "emer- gency condition" setting high the auxiliary input 3 (analog emergency input, vin3). in this case pout1 is reduced to 25mw, voltage level being -40v. the following tables give you details of the vari- ous parameters in the 3 different operating modes, namely npm, rpm with vi3 low, rpm with vi3 high. availability of the input ac main is also acknow- ledged by a specific auxiliary output (out 6, "em signal"), a ttl-compatible signal set high (to logic level "1") when the main is available and low when the ac main is missing. an auxiliary output (output relay, pin 11) is available for u-interface voltage level ac- knowledge, the threshold level being fixed at 85 v. when u-interface voltage level is below 85 v, a pots is connected therefore the auxiliary relay output is low. vice versa, this output goes high when u is higher than 85v (isdn line card). the presence of the "u" is detected by an other auxiliary output (out 7) that is high only when vin2 >34v. the nt1+ pmm provides double insulation (3000 vrms) between the inputs (1 and 2), and among the input 1 and all the outputs. basic insulation exists among out1 and all other outputs. the other outputs (including the 2 auxiliary outputs) and the input 3, share the same common ground. double insulation (2000 vrms) is provided among input 2 (dc "u") and all outputs. the nt1+ power management module operate in the range -10 to +70 o c, storage temperatures in the range -40 to +85 o c are allowed. nt1+/ur2 2/7
electrical characteristics when in npm (tamb=25 o c, unless otherwise specified.) npm standard condition: vin1 = 180 to 264 vrms vin2 = 40 to 120 vdc symbol parameter test condition min. typ. max. unit vi1 ac input voltage 1 180 264 vrms vi2 dc input voltage 2 any polarity 40 120 vdc fi vi1 input frequency vi1 = 230 vrms 43 56 hz vi1st start up input 1 voltage output parameters as per npm standard condition 175 vrms pi1 input 1 apparent power npm standard condition 15 va vi2nd start up input 2 voltage output parameters as per std. condition 40 vdc vo1 output voltage 1 standard condition 34 40 42 v vo2 output voltage 2 standard condition 4.75 5 5.25 v vo3 output voltage 3 standard condition -20 -21 -24 v vo4 output voltage 4 standard condition -48 -50 -65 v vo5 output voltage 5 standard condition -140 -150 -170 v vo6 auxiliary output 6 (em) standard condition 3.75 5 5.25 v vo7 auxiliary output 7 (red led) standard condition 3.75 5 5.25 v vor1,3,4,5 output ripple voltage 1,3,4,5 standard condition bw: 0-20 mhz 100 mvrms vor2 output ripple voltage 2 standard condition bw: 0-20 mhz 30 mvrms po1 output power 1 std. condition according to ets300 012, e5.1.5, e5.1.6, e5.1.7 (n=4) 4.5 w po2 output power 2 standard condition 720 mw po3 output power 3 standard condition 900 mw po4 output power 4 standard condition 100 mw po5 output power 5 the output is current limited at 3 ma +/- 0.2 ma, with 100uf capacitor 700 mw vi1th npm => rpm mode vi1 threshold output parameters as per standard condition 160 vrms ttr transition time transition npm => rpm and vice versa according to ets300 012, e5.1.3 (n=4) 5ms vi1pk input 1 transient overvoltage t = 10/700 us as per 1tr9 dec. 96 2000 v vi1pk input 1 transient overvoltage common mode test according to ets300 047-5p5.6 2500 v vi1pk input 1 transient overvoltage impuls transfer from main acording to ets300 047-5p5.7.1 2500 v vo1pk output 1 transient overvoltage t = 1,2/50 us 500 v vis insulation voltage input 1 to outputs and input 1 to input 2, t=60s reinforced insulation as per en60950 3000 v vist insulation voltage input 1 to outputs t=10/700 us (pulse) 4000 v th hold-up time vin = 180 vrms standard condition 20 ms mtbf mean time before failure ground fixed, mil-hdbk-217e 1 mh top oper. ambient temperature -10 +70 o c nt1+/ur2 3/7
electrical characteristics when in rpm (tamb=25 o c, unless otherwise specified.) rpm standard condition: vin1 < 100 vrms vin2 = 40 to 120 vdc vin3 = low symbol parameter test condition min. typ. max. unit vi1 ac input voltage 1 100 vrms vi2 dc input voltage 2 any polarity 40 120 vdc vi2nd start up input 2 voltage output parameters as per std. condition 40 vdc vo1 output voltage 1 standard condition -34 -40 -42 v vo2 output voltage 2 standard condition 4.75 5 5.25 v vo3 output voltage 3 standard condition -20 -21 -24 v vo4 output voltage 4 standard condition -48 -50 -65 v vo5 output voltage 5 standard condition -140 -150 -170 v vo6 auxiliary output 6 (em) standard condition 0 1.25 v vo7 auxiliary output 7 (red led) standard condition 3.75 5 5.25 v vor1,3,4,5 output ripple voltage 1,3,4,5 standard condition bw: 0-20 mhz 100 mvrms vor2 output ripple voltage 2 standard condition bw: 0-20 mhz 30 mvrms po1 output power 1 std condition according to ets300 012, e5.1.1, e5.1.4.1, e5.1.4.2, e5.1.5.3 (n=4) 420 mw po2 output power 2 standard condition 450 mw po3 output power 3 standard condition 450 mw po4 output power 4 standard condition 100 mw po5 output power 5 standard condition 700 mw vi1st rpm => npm mode vi1 threshold output parameters as per standard condition 175 vrms ttr transition time transition npm => rpm and vice versa according to ets300 012, e5.1.3 (n=4) 5ms vi1pk input 1 transient overvoltage t = 10/700 us as per 1tr9 dec. 96 2000 v vi1pk input 1 transient overvoltage common mode test according to ets300 047-5p5.6 2500 v vi1pk input 1 transient overvoltage impuls transfer from main acording to ets300 047-5p5.7.1 2500 v vo1pk output 1 transient overvoltage t = 1,2/50 us 500 v vis insulation voltage input 1 to outputs and input 1 to input 2, t=60s reinforced insulation as per en60950 3000 v vist insulation voltage input 1 to outputs t=10/700 us (pulse) 4000 v th hold-up time vin = 180 vrms standard condition 20 ms mtbf mean time before failure ground fixed, mil-hdbk-217e 1 mhou rs top oper. ambient temperature -10 +70 o c tstg storage temperature range -40 +85 o c nt1+/ur2 4/7
electrical characteristics when in rpm (tamb=25 o c, unless otherwise specified.) rpm standard condition: vin1 < 100 vrms vin2 = 40 to 120 vdc vin3 =high symbol parameter test condition min. typ. max. unit vi1 ac input voltage 1 0 100 vrms vi2 dc input voltage 2 any polarity 40 120 vdc vi2nd start up input 2 voltage output parameters as per std. condition 40 vdc vo1 output voltage 1 standard condition -34 -40 -42 v vo2 output voltage 2 standard condition 4.75 5 5.25 v vo3 output voltage 3 standard condition -20 -21 -24 v vo4 output voltage 4 standard condition -48 -50 -65 v vo5 output voltage 5 standard condition -140 -150 -170 v vo6 auxiliary output 6 (em) standard condition 0 1.25 v vo7 auxiliary output 7 (red led) standard condition 3.75 5 5.25 v vor1,3,4,5 output ripple voltage 1,3,4,5 standard condition bw: 0-20 mhz 100 mvrms vor2 output ripple voltage 2 standard condition bw: 0-20 mhz 30 mvrms po1 output power 1 standard condition 25 mw po2 output power 2 standard condition 450 mw po3 output power 3 standard condition 450 mw po4 output power 4 standard condition 100 mw po5 output power 5 standard condition 700 mw vi1st rpm => npm mode vi1 threshold output parameters as per standard condition 175 vrms ttr transition time transition npm => rpm and vice versa according to ets300 012, e5.1.3 (n=4) 5ms vi1pk input 1 transient overvoltage t = 10/700 us as per 1tr9 dec. 96 2000 v vi1pk input 1 transient overvoltage common mode test according to ets300 047-5p5.6 2500 v vi1pk input 1 transient overvoltage impuls transfer from main acording to ets300 047-5p5.7.1 2500 v vo1pk output 1 transient overvoltage t = 1,2/50 us 500 v vis insulation voltage input 1 to outputs and input 1 to input 2, t=60s reinforced insulation as per en60950 3000 v vist insulation voltage input 1 to outputs t=10/700 us (pulse) 4000 v th hold-up time vin = 180 vrms standard condition 20 ms mtbf mean time before failure ground fixed, mil-hdbk-217e 1 mhou rs top oper. ambient temperature -10 +70 o c tstg storage temperature range -40 +85 o c nt1+/ur2 5/7
nt1+ power management module top view (dimensions in mm pin configuration input 1 (230 vac) applies to the vac input connector pin no signal pin no signal 1 output 1 return 10 output 7 (red led) 2 output 1 (+/- 40 v) 11 output relay 3 output voltage for p.s. signal (ps20) 12 gnd, common return for output 2,3,4,5,6,7, input 3 4 output 3 (-21 v) 13 vi2 input voltage 2, vdc (any polarity) 5 output 6 (em, green led) 14 vi2 input voltage 2, vdc (any polarity 6 output 2 (+5 v) 15 vi1 input voltage 1, vac 7 vin 3, analog emergency input 3 16 vi1 input voltage 1, vac 8 output 4 (-50 v) 17 n.c. 9 output 5 (-150 v) 18 n.c. nt1+/ur2 6/7
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