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Installation – APC BC300 User Manual

Page 25

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Installation

990-1400A

Installation Guide APC BC300 Series 60kW 208/480V UPS

25

Figure 12 Monitoring Port Pin Assignment

UPS Shut Down RS-232 Input or

Advanced Mode RS-232 Data RX In

Line Fail RS-232 Output or

Advanced Mode RS-232 Data TX Out

Unregulated

+24 VDC Output

Normally Open
Line Fail Signal

Normally Open
Low Battery Signal

Normally Closed
Line Fail Signal

Common

Chassis