Com Port Interface - Paradyne 3150 Operator's Manual

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, or to a network device (e.g., a router) for
SNMP or Telnet applications. (The SNMP LAN Adapter includes the cable that
is needed to attach it to the CSU.) The COM port connector is an 8-position
unkeyed modular connector
on this port are referenced to a DTE interface.
The COM port-to-PC cable is shown in
COM port-to-terminal/printer cable is shown in
Port-to-Terminal/Printer
Table E-5.
3150-A2-GB24-10
Cable.
COM Port Connector
Signal
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
March 2001
(Table E-5, COM Port Connector). The data signals
Figure E-5, COM Port-to-PC Cable
Figure E-6, COM
Direction
From CSU
From CSU
—
To CSU
To CSU
From CSU
To CSU
From CSU
E. Pin Assignments
and the
Pin Number
1
2
3
4
5
6
7
8
E-7