Appendix D External Interface Specifications D-3
D.2 UPC (UPS Control) Port
D.3 USB Port
TABLE D-2 UPC (UPS Control) Port
Setting Pin No Signal Name Input/Output Description
1 ER Output Equipment
power-on report
signal
2 NC --- Not connected
3 NC --- Not connected
4 NC --- Not connected
5 SG --- Ground
6 *BPS Input UPS hardware
error signal
7 *BTL Input Battery end of
discharge
warning signal
8 NC --- Not connected
9 *ACOFF Input Power failure
detection signal
TABLE D-3 USB Port
Setting Pin No Signal Name Input/Output Description
1 VBUS Output Power supply
2 -DATA Input/output Data
3 +DATA Input/output Data
4 GND --- Ground
9876
54321
1234
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