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.
Basic T1/E1 data
The multiflex trunk (MFT) versions act as WICs, supporting T1, fractional T1, E1, and fractional E1. To simplify remote management, these modules integrate a fully managed DSU/CSU for T1 deployments and a fully managed DSU for E1 deployments.
E1/G.703 data
In addition to the basic T1/E1 data support, the CE1T1 versions also support structured G.703 with G.704 framing and unstructured E1 (G.703) applications.
T1/E1 packet voice
All the modules support packet voice applications by providing T1, fractional T1, E1, and fractional E1 connections to private branch exchanges (PBXs) and central offices, thereby enabling the services and reducing voice and fax toll charges. An additional onboard PVDM4 is required. Also, each NIM has its own PVDM4, so each module can be connected to a different service provider with no single clock domain restriction.
Mixed data and packet voice
The modules can simultaneously support both data and voice, reducing the complexity and number of network components and facilitating a graceful migration to bandwidth-efficient packet voice.
Mixed data and packet voice with drop and insert
You can deploy all the modules as T1/E1 drop-and-insert multiplexers with integrated DSUs/CSUs, reducing the complexity of the network and the cost of the central-office ports by efficiently combining time-division multiplexing (TDM) voice (PBX), IP voice, and data on the same trunks.
Specification
| NIM-2MFT-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 | 0.42 lb (191g) |
Packing Information
Cisco 4000 Multi-flex Trunk Voice T1/E1 Module NIM-2MFT-T1/E1 is sealed in cisco original box. We will also pack NIM-2MFT-T1/E1 with the second box before shipping.
Shipment
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Payment Method
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