APC AP9341 Specifications download pdf (Page 16)

Installation—Accessories

12 Temperature/Humidity Module

Additional TH Modules

Add TH Modules to the Main Module to monitor

additional racks. The Main Module can support a

maximum of 32 TH Modules (with additional

power supplies).

Adding power supplies:

To avoid communication problems, connect the

TH Module to the Main Module or a TH Module

that is part of the system before connecting a

stabilized power supply to the 24 VDC Input.

If the system includes beacons or devices attached

to the +12 VDC or +24 VDC voltage output

connector, attach a stabilized power supply

(AP9505i) to the 24 VDC Input of every third TH

Module.

If the system does not include any beacons or

voltage output connections, connect a stabilized

power supply (AP9505i) to the 24 VDC Input of

every tenth TH Module.

Warning

The first time a TH Module receives

power, it requests a unique

identification address from the Main

Module. It uses this address to

communicate with the Main Module.

If the TH Module is not part of the

system when it receives power for

the first time, it cannot ensure that

its identifier is unique, and

communication problems may arise.



Connect the TH Module to the system.



Add a stabilized power supply (AP9505i)

where needed.

User Inputs24 VDC

Input

1

23

4

–+ –+–

+

–

+

D

0

G

N

D

D

1

+

–

A

larm Beacon

Volta ge

Output

User Inputs24 VDC

Input

1234

–+ –+–

+

–

+

D

0

G

N

D

D

1

+

–

A

larm Beacon

Volta ge

Output

aem0078a

+

+

1224

N

O

G

N

D

C

O

M

N

C

Main Module

(AP9340)

TH Module

(AP9341)

TH Module

(AP9341)

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