APC ACRP500 Specifications Page 40

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InRow RP CW Installation32
User interface connectors
Rack inlet temperature sensors 1, 2, 3
A-Link IN
A-Link OUT
Network port
Console port
Customer output, NC (Normally Closed)
Customer output, COM (Common)
Customer output, NO (Normally Open)
Supply GND (Ground)
Supply 12 Vdc (current limit: 20 mA)
Supply 24 Vdc (current limit: 20 mA)
Remote shutdown+ (12–30 Vac/Vdc, 24 Vdc @
11 mA)
Remote shutdown-
Modbus D1 (RXTX+)
Modbus D0 (RXTX–)
Modbus GND
Supply air temperature sensor (front)
Supply air humidity sensor (front)
Display interface
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Note: For a top installation, route control wiring through
the wire channel located at the top left hand corner just
above the user interface connectors.
For a bottom installation, route the control wiring to the
customer access hole in the bottom of the equipment
through wire clamps from the interface connectors. Then,
route the wiring down along the electrical panel and secure
with wire clamps.
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