Specifications

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CHAPTER 4 COMMUNICATION INTERFACE
The UPS provides RS-232 and Dry contact protocols in one D-sub 9 connector.
Using proper UPS management software and cable, the UPS can be managed
in LAN/ Intranet/ Internet environment. The pin assignment of the D-sub 9
connector is defined as follows:
Figure 4-1 Pin Assignment Figure 4-2 Open Collector Circuit
Maximum voltage and current on pin 1, 8 is 30VDC, 10mA.
ASSIGNMENT DESCRIPTION
PIN
RS-232 Dry Contact
1 Low battery (Open collector)
2 UPS TxD (typical RS-232 level)
3 UPS RxD (typical RS-232 level) Remote Shutdown (5~12V)
4 Reserved for PNP
5 GND GND
6 Reserved for PNP Reserved
7 Reserved for PNP Reserved
8 Utility Fail (Open collector)
9
1
2345
6789
GND
Open Collector
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