External Connection

Normally Open

Line Fail Signal

Normally Open

Low Battery Signal

Normally Closed

Line Fail Signal

Common

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

Chassis

990-4059

Installation Guide APC Silcon 480kW 400V UPS

25

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Image 25
American Power Conversion 480kW 400V manual External Connection