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PA-4R Half-Duplex Token Ring Port Adapter Installation and Configuration
OL-3589-01
VIP2 and the 4R Port Adapter
4R Port Adapter Receptacle Pinout
Table 2 lists the pinout for the DB-9 receptacle used on the 4R port adapter.
Table 2 Token Ring Signals
VIP2 and the 4R Port Adapter
This section describes the 4R port adapter and its use with the VIP2 and provides the following
additional information specific to the 4R port adapter and its use on the VIP2 in Cisco 7000 series and
Cisco 7500 series routers:
• Installing or Replacing a Port Adapter on a VIP2, page 14
• Attaching 4R Port Adapter Interface Cables, page 18
• Configuring the 4R Interfaces, page 19
• Checking the Configuration, page 24
The 4R port adapter can be installed in either port adapter slot 0 or port adapter slot 1 on the VIP2. shows
a 4R port adapter installed in port adapter slot 0, on a VIP2-15 or VIP2-40.
Pin Signal
1 Ring-In B
5 Ring-Out A
6 Ring-In A
9 Ring-Out B
10 and 11 Ground