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)
2
GND
3
GND
4
GND
5
TX+ (Transmit to STP wire)
6
RX- (Receive from STP wire)
7
GND
8
GND
9
TX- (Transmit to STP wire)
Pin 5
Pin 1
Pin 9
Pin 6
