Interface Standard Of Fxs User-Board With Polarity Reversal Function; (Rc3000-Sub-Dsr)£ º; Power Supply - Raisecom RC3000 PCM User Manual

Ring not detect voltage:
2W input impedance:
2W input impedance:
Gain from 2W to 4W:
Frequency characteristic from 2W to 4w:
Gain from 4W to 2W:
Frequency characteristics from 4W to 2w: 0±0.2 db
Return loss:
Balance:
Common-Mode Rejection Ratio:
Power supply Rejection Ratio:
Idle channel noise:
5.2.11. Interface standard of FXS user-board with polarity reversal
function (RC3000-SUB-DSR)£ º
Feed voltage:
Loop current:
Feed ring voltage:
Ring stop time:
2W input impedance:
Gain from 2W to 4W:
Frequency characteristic from 2W
Gain from 4W to 2W:
Frequency characteristic from 4W
Return loss:
Balance:
Common-Mode Rejection Ratio:
Power Supply Rejection Ratio:
Idle channel noise:

5.3. Power supply

Input voltage: DC -48V, tolerance range -36V¡ «
AC 220V, tolerance range 85¡ « 265V
Module power: general≤20W, maximum≤40W
≤15 V
normal and not ring status: 600Ω
ring or abnormal status: 1000K Ω
0±0.5 db
0±0.2 db
-3.5±0.5 db
30-40 db
60-70 db
60-70 db
30 db
75 db
DC –48 V or
18-24 mA standard value 20 mA
AC 65±10 V
200 ms
200+680Ω
0±0.5 db
to 4W: 0±0.2 db
-3.5±0.5 db
to 2W: 0±0.2 db
30-40 db
60-70 db
60-70 db
Vcc: 30 db
75 db
-72V
20
Raisecom Technology Co., Ltd
DC 24 V
25 Hz
Vbat: 30 db