Raisecom RC3000 PCM - Interface Standard of E&M 4 Audio Relay User-Board (RC3000-SUB-DM4); Standard of V35 Data User-Board (RC3000-SUB-DV35); Interface Standard of V24 Data User-Board (RC3000-SUB-DV24)

Raisecom Technology Co., Ltd
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Return loss: 20 db
Maximum voltage of common-mode: 300 V
Common-Mode Rejection Ratio: >55 db
Power supply Rejection Ratio: 30 db
Idle channel noise: 60 db
Note: AD gain and DA gain are adjustable according to user’s requirement
5.2.4. Interface standard of E&M 4 audio relay user-board
(RC3000-SUB-DM4):
AD gain: +14 db
DA gain: +4 db
AD frequency characteristic (300-3400Hz): 0±0.2 db
DA frequency characteristic (300-3400Hz): 0±0.2 db
Output loop impedance: 600Ω
Input loop impedance: 600Ω
Blance: 60 db
Maximum voltage of common-mode: 300 V
Common-Mode Rejection Ratio: >60 db
Power supply Rejection Ratio: 30 db
Idle channel noise: >60 db
Note: AD gain and DA gain are adjustable according to user’s requirement
5.2.5. Standard of V35 data user-board (RC3000-SUB-DV35):
Physical characteristic: Comply with V.35 interface standard
Interface type: HDB26 female connector
Working mode: DCE
Interface rate: N×64Kbps（N=1-31）
5.2.6. Interface standard of V24 data user-board (RC3000-SUB-DV24):
Physical characteristic: Comply with V.24 interface standard
Interface type: HDB26 female connector
Working mode: DCE