Com port interface – HP 3162 User Manual
Page 145
Pin Assignments
D-5
3162-A2-GB20-40
August 2000
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 COM port connector is an 8-position keyed
modular connector (Table D-3). The data signals on this port are referenced to a
DTE interface.
The COM port-to-PC cable is shown in
port-to-terminal/printer cable is shown in
Table D-3.
COM Port Connector
Signal
Direction
Pin Number
DCE Transmit Clock
From DSU/CSU
1
DCE Receive Data
From DSU/CSU
2
Signal Ground
—
3
DCE Transmit Data
To DSU/CSU
4
DCE Data Terminal Ready
To DSU/CSU
5
DCE Carrier Detect
From DSU/CSU
6
DCE Request-to-Send
To DSU/CSU
7
DCE Receive Clock
From DSU/CSU
8