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Understanding 1-Port and 2-Port E1 Multiflex Trunk Voice/WAN Interface Cards (VWICs)
Contents
Introduction
Prerequisites
 Requirements
 Components Used
 Conventions
Product Numbers
Features
 Multiple Channel Groups on One Port
Configuration
Platform Support
Digital Voice Port Pinout (RJ-48C)
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Related Information
Introduction
The Cisco 1-Port and 2-Port E1 Multiflex Voice/WAN Interface Card (VWIC-xMFT-E1, VWIC-xMFT-G703, and VWIC-2MFT-E1-DI) supports voice and data applications on the Cisco 1700, 2600, 3600, and 3700 series
routers.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
The information in this document is based on these software and hardware versions:
VWIC-1MFT-E1
● 
VWIC-2MFT-E1● 
VWIC-2MFT-E1-DI● 
VWIC-1MFT-G703● 
VWIC-2MFT-G703● 
Conventions
Refer to Cisco Technical Tips Conventions for more information on document conventions.

Summary of content (5 pages)

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Understanding 1-Port and 2-Port E1 Multiflex Trunk Voice/WAN Interface Cards (VWICs) Contents Introduction Prerequisites Requirements Components Used Conventions Product Numbers Features Multiple Channel Groups on One Port Configuration Platform Support Digital Voice Port Pinout (RJ-48C) NetPro Discussion Forums - Featured Conversations Related Information Introduction The Cisco 1-Port and 2-Port E1 Multiflex Voice/WAN Interface Card (VWIC-xMFT-E1, VWIC-xMFT-G703, and VWIC-2MFT-E1-DI) supports voice and da
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Product Numbers Product Number Product Description VWIC-1MFT-E1 1-Port RJ-48 Multiflex Trunk - E1 VWIC-2MFT-E1 2-Port RJ-48 Multiflex Trunk - E1 VWIC-2MFT-E1-DI 2-Port RJ-48 Multiflex Trunk - E1 with drop and insert VWIC-1MFT-G703 1-Port RJ-48 Multiflex Trunk - E1 for unstructured G.703 VWIC-2MFT-G703 2-Port RJ-48 Multiflex Trunk - E1 for unstructured G.703 Note: NM-HD-1V and NM-HD-2V do not support these VWICs.
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● Support is available for two channel groups on one port in Cisco 2600 chassis WIC slots. This support is not available on NM-1E2W, NM-2E2W, or NM-1E1R2W, but is available on NM-1FE2W, NM-2FE2W, NM-1FE1R2W, and NM-2W. ● When you have enabled the two-channel group mode, the WIC slot supports only one physical port. The two-channel group mode still supports add/drop multiplexing because only one port terminates on the router.
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6 Cisco 3620 series routers do not support NM-HD-2VE.
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