Cisco Fourth-Generation Multi-flex Trunk Voice/Channelized Data T1/E1 Module
Expansion module
T1/E1 x 2
T-1/E-1
for Cisco 4451-X; Integrated Services Router 4321, 4331, 4351, 4431
Overview
The Cisco Fourth-Generation T1/E1 Multiflex Trunk Voice and WAN Network Interface Modules (NIMs) support data and voice applications on the Cisco 4451-X integrated services routers. 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 unparalleled 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.¦The T1/E1 modules contain an onboard Cisco Packet Voice Digital Signal Processor Module 4 (PVDM4) slot, which requires a fourth-generation PVDM4 module. A PVDM4 on the T1/E1 module is necessary for the voice features. The PVDM4 also provides for echo cancellation of up to 128-ms echo-tail length for demanding network conditions.
Compliant StandardsAS/NZ 3548 Class A, AS/NZS 60950, CAN/CSA C22.2 No. 60950, CISPR 22 Class A, CISPR 24, EN 60950-1, EN 61000-3-2, EN 61000-3-3, EN 61000-4-2, EN 61000-4-3, EN 61000-6-2, EN50082-1, EN 55022 Class A, EN55024, FCC CFR47 Part 15, GR-1089-CORE, GR-63-CORE, ICES-003 Class A, IEC 60950-1, UL 60950, VCCI Class A
