Cisco 8-port MIX multichannel T1/E1 port adapter with CSU/DSU PA-MCX-8TE1= ユーザーズマニュアル

Cisco Systems

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Port Adapter

for the

 Series Routers

This family of multipurpose MIX-enabled port adapters comprises three members—the PA-MCX-2TE1,

PA-MCX-4TE1, and PA-MCX-8TE1; the port adapters come with built-in channel service units/data service

units (CSUs/DSUs). These port adapters have the same feature set, and they differ only in the number of

physical interfaces supported.

The MIX-enabled T1/E1 port adapters provide the ability to integrate voice and data on the same T1/E1

interface without the need for an external time-division multiplexing (TDM) device. With the “drop and

insert” capability, DS0-level grooming is supported, thus providing cost-effective WAN access. Ports can be

configured as voice, data, or both, depending on the application requirements.

The MIX-enabled T1/E1 port adapters maximize the use of digital-signal-processor (DSP) resources on the

enhanced digital voice adapters, using the DSP farm capability across the MIX bus. The DSP resources on

the enhanced digital voice port adapters are shared between their local interfaces and the PA-MCX, and can

terminate 20 T1s or 18 E1s of voice traffic, thus providing a highly cost-effective solution.

For data applications that require T1 CSU and DSU functionality, the two-, four- and eight-port MIX-enabled

T1 port adapters provide the right mix of integration and cost. For E1 applications, the MIX-enabled E1/

G.703 interface allows direct connectivity to 120-ohm G.703 lines. The 128 channels of the MIX-enabled

port adapter can be allocated among N *DS0 (N x 64K) links, or ISDN Primary-Rate-Interface (PRI) links.

A total of 30 ISDN PRIs can be supported on a Cisco 7206 VXR series router when using T1 links, and 24

ISDN PRIs can be supported when using E1 links.