Paradyne 3150 Operator's Manual page 108

ACCULINK 315x CSU
COM Port Interface
The COM port connects to a PC for front panel
emulation, to an ASCII terminal or printer for alarms, to
an async terminal, to a network device (e.g., a router) for
SNMP or Telnet applications, to the LAN Adapter for
SNMP or Telnet applications, or to another CSU's AUX
port for daisy chain connectivity. (The SNMP LAN
Adapter includes the cable that is needed to attach it to
the CSU.) The COM port connector is an 8-position
keyed modular connector (Table
this port are referenced to a DTE interface.
The COM port-to-PC cable is shown in
the COM port-to-terminal/printer cable is shown in
Figure D-6.
DCE Transmit Clock
DCE Receive Data
Signal Ground
DCE Transmit Data
DCE Data Terminal Ready
DCE Carrier Detect
DCE Request-to-Send
DCE Receive Clock
D-6
D-5). The data signals on
Figure D-5 and
Table D-5
COM Port Connector
Signal Direction
From CSU
From CSU
To CSU
To CSU
From CSU
To CSU
From CSU
February 1998
NOTE
For daisy-chaining an AUX port
to a COM port, a 25-pin-to-8-pin,
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.
Pin Number
1
2
— 3
4
5
6
7
8
3150-A2-GB21-80