Raisecom Technology Co., Ltd
5
3. Parameters
3.1. E1 interface technical indicator
Bit rate
：
2048Kbps±50ppm
Line code
：
HDB3
Impedance of interface
：
75
Ω
（
unbalanced BNC interface
）
or 120
Ω
(balanced RJ-45 interface)
Electrical characteristics:
Comply with ITU-T G.703
Other characteristics:
Indicators, such as transfer characteristics and input jitter
tolerance comply with ITU-T G.823, G.724 etc. relevant protocols
3.2. E1 Ethernet interface technical features
IEEE 802.3 Ethernet
IEEE 802.3u Fast Ethernet
IEEE 802.3q
IEEE 802.3d Spanning Tree
Support maximum frame length up to 1916 Bytes
Work mode: 10/100M Auto-negotiation, Auto-MDI/MDIX and manual configuration
Flow control: IEEE 802.3x and backpressure
3.3. Optical interface technical indicator
Bit rate
：
155Mbps
Fiber connecter
：
SC
Optical transmission
：
There are two kinds of single mode single strand fiber product: S1: 0-25KM, S2: 10-50KM
3.4. Auxiliary data channel
RS232 standard
3.5. Power supply
Power Supply: DC: -48V Voltage: -36V ~ -72V
AC: 220V Voltage: 165~265V
Power consumption:
≤
25W (under full load condition)
