NIM-1MFT-T1/E1 Overview
The Cisco® Fourth-Generation 1-, 2-, 4-, and 8-Port T1/E1 Multiflex Trunk Voice
and WAN Network Interface Modules (NIMs) support data and voice
applications on the Cisco 4000 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 superior 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.
NIM-1MFT-T1/E1 Specification | |
Capacity | |
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 |
T1 Network Interface | |
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 |
E1 Network Interface | |
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 |
Module Specifications | |
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 50°C (32 to 122°F) ● Storage temperature: -20 to +65°C (-4 to 148°F) ● 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 | 0.40 lb (181g) |
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