Operator’s Guide for Rugged-UPS
TM
1252 Series
91-0120 Rev. B 23
© Acumentrics Corporation 2007-2008
Pin Connections
Remote Operation using Communications Port
WARNINGS
•
DANGEROUS VOLTAGES
exist on this connector. The ON/OFF
Connections are safe.
1
9
21
13
8
14
25
OFF
ON
Momentary Spot Toggle Switch
25 Pin Auxiliary Connector (Viewed from the back of the Male Mating Connector)
For further details pertaining to Remote Operation contact Acumentrics Corporation.
Communications Interface Pin Out Functionality (DB9):
Simple signal uses cable PN ACG9236
RS-232 uses cable PN ACG9270
Both use the 9 pin D-SUB connector on the rear of the unit and are opto-isolated and driven by RS-232
transceivers. The simple signal mode allows remote turn on / off by the user supplying logic high “true”
levels to the pins listed in table 1. This can be accomplished through hardware, switches or DIO cards.
Simple signal mode and cable PN ACG9236 also function with MS Windows Power Options UPS. Select
Generic, Custom, and all TRUE positive.
The RS-232 mode does not allow remote turn on and turn off. The supported commands and baud rate
are listed below in table 1. HyperTerminal is a good tool to use for communication.
While using RS-232 mode remote on/off can also be controlled through the 25 pin D-SUB AUX Port on
the rear of the unit.
The DB9 connector is a 9 pin D type female with the following RS232 level:
TRUE = SPACE = +7.5V or greater
FALSE = MARK = -7.5V or less
1
2
3
4
5
6
7
8
9
