Introduction

These flexible interface cards support multiple integrated data and voice applications, facilitating the migration from data-only as well as circuit-switched voice services to a packet voice solution.

Introduction
The Cisco® Fourth-Generation 1-, 2-, 4-, and 8-Port T1/E1 Multiflex Trunk Voice and WAN Network Interface Modules (NIMs) support data and voice applications on the Cisco 4000 Integrated Services Routers (Figure 1). 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 superior 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.

Features

Product type

Voice network module

Supported network protocols

T1/E1

Number of connectors

2

Compatible products

Cisco 4451-X

Operational conditions

Operating temperature (T-T)

0 - 50 °C

Storage temperature (T-T)

-20 - 65 °C

Operating relative humidity (H-H)

10 - 85%

Storage relative humidity (H-H)

5 - 95%

Weight & dimensions

Weight

191 g