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Installing and Operating Passport ARN Routers
C-8
114200-E Rev 00
Token Ring STP Interface
The token ring STP interface provides shielded twisted-pair support. The ARN
token ring base module, token ring expansion module, and token ring/tri-serial
expansion modules contain this standard 802.5 DB-9 receptacle.
Table C-5
shows the pin assignments for the standard 9-pin STP receptacle on the
ARN base or expansion module and identifies its pin locations.
Table C-5. Token Ring STP Interface Pin Assignments
Pin Assignment Pin No. Signal Name
1 RX+ (Receive from STP wire)
2GND
3GND
4GND
5 TX+ (Transmit to STP wire)
6 RX- (Receive from STP wire)
7GND
8GND
9 TX- (Transmit to STP wire)
Pin 5Pin 1
Pin 9Pin 6