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VWIC-2MFT-T1-DIR, VWIC-2MFT-E1-DIR
Installation Instructions
This document contains the following sections:
•
Overview
•
Safety Guidelines
•
Installing the VWIC-2MFT-T1-DIR, VWIC-2MFT-E1-DIR
•
Connecting the T1/E1 Multiflex VWIC Card
•
Configuring the VWIC-2MFT-T1-DIR, VWIC-2MFT-E1-DIR
•
Y-Cable Specifications
•
RJ-48C Pinout Configuration
•
Understanding the LEDs
•
Translated Safety Warnings
•
Obtaining Documentation
•
Obtaining Technical Assistance
Overview
The Cisco VWIC-2MFT-T1-DIR and VWIC-2MFT-E1-DIR Voice/WAN Interface Cards support data
applications on the Cisco MWR 1941-DC Mobile Wireless Edge Router for T1/E1 networks. These
cards are dual-port, T1/Fractional T1 or E1/Fractional E1, Drop and Insert Multiplexers with integrated
T1 CSU/DSUs or E1 DSUs. The T1 version supports framed and unframed traffic, and the E1 version
supports framed traffic and unframed traffic that conforms to the ITU-T G.703 standard for full 2.048
Mbps bandwidth.
The Drop and Insert multiplexer diverts (drops) streams of an aggregate Time Division Multiplexed
(TDM) traffic stream, and introduces (inserts) different streams for transmission in the time slots that
were previously occupied by the dropped streams. Each VWIC supports a limited channelized capability
where the T1 or E1 can be flexibly split into two fractional channel groups, one on each port or two on
one port. The switching operation can be maintained through router restarts and reloads of Cisco IOS
software.
