Cabletron Systems Cabletron SmartSwitch Router 250 - Manual (Page 30)

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Console Port
4 Tip or Line A
5 Ring or Line B
6 Not connected or Line B
7 Not connected
8 Not connected
Pin Signal Name
1 Receive data
2 Request to send
3 Not used
4 Transmit data
5 Ground
6 Clear to send
7 Not used
8 Ring indicator