Cisco 4-Port Dedicated Token Ring Port Adapter PA-4R-DTR= ユーザーズマニュアル

 PA-4R-DTR Dedicated Token Ring Port Adapter 1

PA-4R-DTR Dedicated Token Ring 
Port Adapter

The Dedicated Token Ring port adapter (PA-4R-DTR) is available on Cisco 7500 series routers, 
Cisco 7200 series routers, and Cisco 7000 series routers with the 7000 Series Route Switch 
Processor (RSP7000) and 7000 Series Chassis Interface (RSP7000CI). 

The PA-4R-DTR provides up to four IBM Token Ring or IEEE 802.5 Token Ring interfaces. Each 
Token Ring interface can be set for 4 Mbps or 16 Mbps half-duplex or full-duplex operation and can 
operate as a standard Token Ring station or as a concentrator port. The default for all interfaces is 
Token Ring station mode with half-duplex 16-Mbps operation. The PA-4R-DTR connects over Type 
1 lobe or Type 3 lobe cables, with each interface providing an RJ-45 receptacle.

This feature is supported on the following platforms:

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Cisco 7500 series

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Cisco 7200 series

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Cisco 7000 series routers with the RSP7000 and RSP7000CI

For information on how to configure the PA-4R-DTR port adapter, refer to the 4-Port Dedicated 
Token Ring Port Adapter Installation and Configuration publication or to “Configure a Token Ring 
Interface” section in the “Configuring Interfaces” chapter of the Configuration Fundamentals 
Configuration Guide.s

In addition to the commands in the “Configure a Token Ring Interface” section, each PA-4R-DTR 
port adapter interface can also be separately configured to operate as a concentrator port. By default, 
the PA-4R-DTR operates as a standard Token Ring station. 

Following are the configuration and maintenance tasks described in this section:

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For information on other commands that can be used by the PA-4R-DTR interface, refer to the 
Cisco IOS Release 11.3 configuration guides.