Aux port interface – Paradyne 3162 DSU/CSU User Manual
Page 136

Pin Assignments
D-4
3162-A2-GB20-30
March 1999
AUX Port Interface
The Auxiliary (AUX) port connects to the LAN Adapter for SNMP or Telnet
applications, or to another DSU/CSU’s COM port for daisy chain connectivity.
(The SNMP LAN Adapter includes the cable that is needed to attach it to the
DSU/CSU.) The AUX port connector is an 8-pin modular connector (Table D-3).
NOTE:
For daisy-chaining an AUX port to a COM port, a customer-supplied
8-pin-to-8-pin, straight-through cable is required and the appropriate
configuration options (Com Use and Aux Use) must be set to Daisy.
Whenever the cable is connected or disconnected, you should change the
Daisy selection to ensure that the correct parameters have been negotiated
for the link layer.
Table D-3.
AUX Port Connector
Signal
Direction
Pin Number
DTE Transmit Clock
From DSU/CSU
1
DTE Receive Data
To DSU/CSU
2
Signal Ground
—
3
DTE Transmit Data
From DSU/CSU
4
DTE Receive Clock
From DSU/CSU
8
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