www.raisecom.com
User Manual
10
3.2.10 Sub-card of MT interface (RC3000-SUB-DMT)
¾
Feed ring voltage: AC 65±10 V 25 Hz
¾
Ring detect voltage:
≥
35 V
¾
Ring detect frequency: 17-63 Hz
¾
Ring not detect voltage:
≤
15 V
¾
2W input impedance: normal and not ring status: 600
Ω
¾
2W input impedance: ring or abnormal status: 1000K
Ω
¾
Gain from 2W to 4W: 0±0.5 db
¾
Frequency characteristic from 2W to 4w: 0±0.2 db
¾
Gain from 4W to 2W: -3.5±0.5 db
¾
Frequency characteristics from 4W to 2w: 0±0.2 db
¾
Return loss: 30-40 db
¾
Balance: 60-70 db
¾
Common-Mode Rejection Ratio: 60-70 db
¾
Power supply Rejection Ratio: 30 db
¾
Idle channel noise: 75 db
3.2.11 Sub-card of FXS polarity reversible user interface (RC3000-SUB-DSR)
¾
Feed: DC –48 V or DC -24 V
¾
Loop current: 18-24 mA standard value 20 mA
¾
Feed ring voltage: AC 65±10 V 25 Hz
¾
Ring stop time: 200 ms
¾
2W input impedance: 200+680
Ω
¾
Gain from 2W to 4W: 0±0.5 db
¾
Frequency characteristic from 2W to 4W: 0±0.2 db
¾
Gain from 4W to 2W: -3.5±0.5 db
¾
Frequency characteristic from 4W to 2W: 0±0.2 db
¾
Return loss: 30-40 db
¾
Balance: 60-70 db
¾
Common-Mode Rejection Ratio: 60-70 db
¾
Power Supply Rejection Ratio: Vcc: 30 db Vbat: 30 db
¾
Idle channel noise: 75 db
3.2.12 Sub-card of RS485 interface (RC3000-SUB-D485)
¾
Physical characteristic: comply with RS485 interface recommendation
¾
Interface type: RJ45 connector
¾
Interface rate: Maximum rate 19.2KBps
3.2.13 Sub-card of Ethernet interface (RC3000-SUB-DETHB)
¾
RJ-45 interface of UTP, the longest transmission distance of 5-category cable is 100m.
¾
Comply with IEEE 802.3 recommendation, 10M/100M auto-negotiation, full/half duplex
auto-negotiation.
¾
Support IEEE 802.1d Spanning Tree relay, IEEE 802.1q VLAN packet relay
¾
Maximum Ethernet frame size is 1522 bytes
¾
Support flow control of IEEE 802.3x in full duplex
¾
Support flow control of backpressure in half duplex
¾
AUTO-MDI/MDIX
