[shortdesc]
- Expansion module
- T1/E1 x 2
- T-1/E-1
- For Cisco 4451-X
[/shortdesc]
[specifications]
Serial data (channel-group) |
2 per port |
E1 unframed G.703 |
Not supported |
Voice channel associated signaling (CAS) (ds0-group) |
24 per port (T1) 31 per port (E1) 1 per timeslot |
PRI (pri-group) |
1 per port |
Drop and insert (tdm-group)
|
24 per port (T1) 31 per port (E1) 1 per timeslot |
Transmit bit rate |
1.544 Mbps 50 bps/32 ppm |
Receive bit rate |
1.544 Mbps 50 bps/32 ppm |
Line code |
Alternate mark inversion (AMI) and binary 8-zero substitution (B8ZS) |
AMI ones density |
Enforced for n x 56-kbps channels |
Framing format |
D4 (Super Frame [SF]) and Extended Super Frame (ESF) |
Output level (line build-out [LBO]) |
0. -7.5 or -15 dB |
Input level |
1 dB0 down to -24 dB0 |
Data-terminal-equipment (DTE) interface (WIC mode) |
Fractional service |
DTE interface (VIC mode) |
G.704 or structured |
Data-communications-equipment (DCE) interface |
G.704 or structured |
Transmit bit rate |
2.048 Mbps 100 bps/50 ppm |
Receive bit rate |
2.048 Mbps 100 bps/50 ppm |
Data rate |
1.984 Mbps (framed mode) per E1 port |
Clocking |
Internal and loop (recovered from network) |
E1 national bits |
Fixed (nonconfigurable) |
Encoding |
High-density bipolar three (HDB3) |
DTE interface (WIC mode) |
Fractional service |
DTE interface (VIC mode) |
G.704 or structured |
DCE interface |
G.704 or structured |
Dimensions (H x W x D) |
1.25 x 3.50 x 7.24 in. (3.18 x 8.89 x 18.39 cm) |
Environmental |
Operating temperature: 0 to 50C (32 to 122F) Storage temperature: -20 to +65C (-4 to 148F) Relative humidity: 10 to 85% noncondensing operating; 5 to 95% noncondensing. nonoperating |
T1 Compliance (partial list) |
TIA-968-A CS-03 Jate ANSI T1.403 |
E1 Compliance (partial list) |
TBR4. TBR12. and TBR13 ITU-T G.703. G.704. G.823. and I.431 S016 (Australia) |
Weight |
0.42 lb (191g) |
[/specifications]The Cisco Fourth-Generation T1/E1 Multiflex Trunk Voice and WAN Network Interface Modules (NIMs) support data and voice applications on the Cisco 4451-X integrated services routers. These cards combine WAN-interface-card (WIC). voice-interface-card (VIC). ISDN Primary Rate Interface (PRI). dial-access integration. and channelized-data (CE1T1) functions to provide unparalleled flexibility. versatility. and investment protection through their many uses. Customers who choose to integrate data and voice in multiple steps preserve their investment in a T1/E1 WAN interface. The T1/E1 modules contain an onboard Cisco Packet Voice Digital Signal Processor Module 4 (PVDM4) slot. which requires a fourth-generation PVDM4 module. A PVDM4 on the T1/E1 module is necessary for the voice features. The PVDM4 also provides for echo cancellation of up to 128-ms echo-tail length for demanding network conditions.