ANNEX A. Specifications
A-2
© SAMSUNG Electronics Co., Ltd.
Interface
The following tables provide specifications for T1 WAN and Ethernet LAN
interfaces.
E1 WAN Interface
Specifications
Descriptions
Receive line rate
2.048 Mbps ± 50 ppm (payload = 1.984 Mbps)
Line code
HDB3
Framing CRC
non-CRC (ITU G.704), and unframed
Input signal
DSX-1, 0 to -24 dB
Output signal build out
long-haul or short-haul
Impedance
75 or 120 ohm
Connectors
RJ-48C
Timing
Internal or network
Pulse density
ITU G.703
T1 WAN Interface
Specifications
Descriptions
Receive line rate
1.544 Mbps ± 32 ppm
Line code
B8ZS or AMI
Framing
D4 or ESF
Interface ESF FDL
- AT & T TR-54016-1986
- AT & T TR-54016-1989
- ANSI T1.403-1989
Input signal
DSX-1, 0 to -24 dB
Output signal build out
0, -7.5 dB, -5 dB
Equalization
0 to 655 ft. (DSX-1)
Impedance
100 Ω
Connectors
RJ-48C
Timing
Internal or network
Pulse density
AT & T TR-62411; HDLC Inversion, forced
