Cisco Systems ICS-7750 manual VWICs, VWIC-1MFT-T1 and VWIC-2MFT-T1, Configuration Guidelines, 2-44

Chapter 2 Processor Cards Feature Summary

Voice and WAN Interface Cards

VWICs

This section describes the VWICS that are available for use in the MRP card and the ASI81 card:

•VWIC-1MFT-T1 and VWIC-2MFT-T1

•VWIC-1MFT-E1 and VWIC-2MFT-E1

VWIC-1MFT-T1 and VWIC-2MFT-T1

The VWIC-1MFT-T1 card is a one-port, RJ-48 multiflex trunk T1 interface card that supports 24 channels (see Figure 2-16). The VWIC-2MFT-T1 card is a two-port, RJ-48 multiflex trunk T1 interface card that supports 48 channels (see Figure 2-17). Use the cards for the following applications:

•Data: As a WIC for T1/fractional T1 applications. The card integrates a fully managed CSU/DSU.

•Packet voice: As a VIC for the Digital T1 Packet Voice Trunk Network Module to provide T1 connections to PBXs and central offices (COs), enabling new services and reducing voice/fax toll charges.

•Multiplexed voice/data: As a dual-port T1with integrated CSU/DSUs, reducing the complexity and number of network components and easing migration to bandwidth-efficient packet voice.

Configuration Guidelines

The following configuration guidelines apply to the VWIC-1MFT-T1 and

VWIC-2MFT-T1 cards:

•Each MRP supports a maximum of two T1 spans.

•Each MRP supports a maximum of one T1 voice span.

•Each MRP supports a maximum of one T1 data span.

–When one VWIC-1MFT-T1 card is used for data, it supports 24 simultaneous data connections.

–When one VWIC-2MFT-T1 card is used for a T1 voice span, it can support up to 24 simultaneous voice connections.

•Each VWIC card supports a maximum of one channelized T1 group for data.

	Cisco ICS 7750 System Description
2-44	78-10360-02