Specifications

Reference Guide
7-79
WAN Card WAN Card Specifications
E1 Interface
Bit Rate and Tolerance 2.048 Mbps + 50 ppm
No. of E1 WAN Links per module 1
Max. No. per WAN card 2
Electrical Interface G.703 balanced 120 W or unbalanced 75 W
Prior to Rev F0 - Jumper Selectable: 75
1/2
unbalanced or 120
1/2
balanced.
Rev F0 and above - Jumper Selectable: 75
1/2
unbalanced or 120
1/2
balanced. (Balanced mode operation may be achieved via the 1183 or
1184 Distribution Panel).
Transmission Range 2.0 km on 22 AWG
Line Coding High Density Bipolar of order 3 (HDB3)
Frame Format ITU-T G.704 - Double Frame or CRC-4 Multiframe Format
Signaling If voice signaling is required, it is transported in time slot 16
Software Selectable: cAS, CCS or none
CAS Signaling Protocols: AT&T 43801, AT&T 62411, ITU-T Q.42
Signaling Channels ITU-T G.704 supporting ABCD signaling
Error Detection CRC-4, Controlled Slip, Out of Frame
Alarm Indication ITU-T G.732
Pulse Shape Per G.703 Figure 15 (1991)
Pulse Amplitude Per G.703 Table 6 (1991)
75
1/2
unbalanced 120
1/2
balanced
mark/pulse 2.37 V 3 V
space/no pulse 0 +
0.237 0 + 0.3 V
Nominal Pulse Width 244 ns
Output Jitter As per G.823
Input Jitter and Wander As per G.823
E1 HDSL Interface
Bit Rate and Tolerance E1 rate: 2.048 Mbps + 50 ppm
No. of E1 WAN Links per module 1
Max. No. per WAN card 2
Electrical Interface ETR 152
Line Coding 2B1Q
Distance 9000 Ft. of 26 Gauge cable (2.7 km) or 12000 Ft. of 24 Gauge (4.5 km)
(Tolerates 2 Bridge taps and will support a BER of 10-7 or better over
these cable distances.)
HDSL Transmit Signal Level 13.5 dBm
Frame Format ITU-T G.704 - Double Frame or CRC-4 Multiframe Format
Voice Channel Signaling If voice signaling is required, it is transported in time slot 16 software
selectable CAS CCS or none
CAS Signaling Protocols: AT&T 43801, AT&T 62411, ITU-T Q.421
Signaling Channels ITU-T G.704 supporting ABCD signaling
Error Detection CRC-4, Controlled Slip, Out of Frame
Alarm Indication ITU-T G.732