[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]
Cisco NIM-2MFT-T1/E1 Expansion Module
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.
