Minuteman UPS PRO-E Power Supply User Manual


 
11
COMMUNICATIONS PORTS (RS232 and USB)
The RS232 communication port is a standard DB9 female with both RS232 and
simulated contact closure capability. The PRO-E series UPS will poll the port
and activate the port for RS232 or contact closure in accordance with the type
of cable it finds connected to the port. To change the port configuration requires
the unit be turned off and restarted with the desired cable connected. The
pinout for the port is depicted per the chart below.
Pin 1: EPO Emergency Power Off (pull and hold this pin low to turn off the UPS,
release this pin from low to turn to restart the UPS)
Pin 2: /TXD
Pin 3: /RXD and receive ups shutdown command
Pin 4: Simulated contact closure AC fail, NO
Pin 5: Ground
Pin 6: Simulated contact closure low battery warning, NO
Pin 7: Simulated contact closure AC fail, NC
Pin 8: AC fail signal (high to low signal)
Pin 9: Not Used
NOTE: See the SentryII CD for the Power Monitoring Software installation.
See the USB Driver CD for the USB installation.
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