Installing A VWIC2 Card On A Cisco IOS Router

Published by Keyboard Banger on

We use VWIC cards for data and voice connectivity with the PSTN. VWIC stands for Voice and WAN Interface Card. This article deals with the version 2 of the VWIC.

Once a VWIC2 card is inserted, we need to tell IOS which type it is and on which slot and sub-slot it is sitting on. Otherwise, it won’t be detected:

install-VWIC2-cisco-ios-router--2016-03-06 13_46_51

This card supports both E1 and T1 trunks. This card will work for either T1 or E1. In this mini lab, we are configuring a E1 trunk.

install-VWIC2-cisco-ios-router--2016-03-06 13_47_38

Before the card is detected with “show inventory”, we need to manually tell IOS on which slot and sub-slot it is sitting on. We should know this information by looking at the router and reading the slots:

install-VWIC2-cisco-ios-router--2016-03-06 13_48_30

To confirm what we have configured:

install-VWIC2-cisco-ios-router--2016-03-06 13_49_23

This is the slot at which the PVDM card is installed. In Cisco IOS, a PVDM is referred to as “voice card”.

Categories: CCNP Collaboration

Keyboard Banger

Keyboard Banger is a network engineer from Africa. He has been working in network support and administration since 2008. He started writing study notes about certification exams and technology topics a couple of years ago. When he's not writing articles, he can be found wandering on technical forums.


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