APC ACRD201 Specifications download pdf (Page 30)

InRow RD Fluid Cooled Installation24

User interface connections

1

A-Link ports: Pin 1-High; Pin 2-Low;

Pins 3, 6-Perf Power; Pins 4, 5-Ground

<

Alarm NO (normally open contact)

2

Reset button

=

Alarm COM (common contact)

3

Network port

>

Alarm NC (normally closed contact)

4

Shield/ground

?

RS-232 console port

5

A- = True

@

Outdoor heat exchanger (OHE) alarm input -

6

B+ = True

A

OHE alarm input +

7

Shutdown -

B

OHE COM

8

Shutdown +

C

OHE NO

9

24 Vdc (bias)

D

Remote temperature sensor

:

12 Vdc (bias) Leak detector port (AP9325)

;

Return (bias)

na2688b

OHE

Shutdown input

contacts and alarm

output contacts

Modbus

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 39 40

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