Table 5-6: Standard Rs232 Db9 Pin Assignments - Pacific Power Source AFX Series Operation Manual

5.18.5.3 "L" Versions
A DB9 serial interface connector is located on the rear panel for "L" version models of the
AFX Series. "A" version models has the serial interface integrated in the Aux I/O DB25
connector instead.
The DB9 connector is also used for the Remote Inhibit input (pins 7 and 9) and Mode Relay
control output (pins 8 and 5) functions. These functions can be used while using the serial
interface at the same time if needed but a special cable will be required to do so.
PIN
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 7
Pin 8
Pin 9
If only the RS232 interface function is used, a regular straight through DB9 to DB9 cable can
be used to connect to a PC serial port.
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Entire Contents Copyright 2018 by Pacific Power Source, Inc. (PPS) • All Rights Reserved • No reproduction without written authorization from PPS.
AFX Series Power Source Operation Manual
Abbreviation
N/C
TXD
RXD
DTR
COM
RTS
CTS
N/C

Table 5-6: Standard RS232 DB9 Pin Assignments

AFX SERIES® OPERATION MANUAL
SECTION 5: UNPACKING AND INSTALLATION
Description
Not connected
Transmit Data
Receive Data
Data Terminal Ready
Common
Input – Remote Inhibit
Output – Mode Relay Control
+5Vdc internal pull-up for Remote Inhibit
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