Environmental Manager: Main Module
8
Adding power supplies
Warning: The first time a TH
Module receives pow er, 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 rece ives power for the
first time, it can not ensure that its
identification address is unique, and
communication problems may arise.
To avoid communication problems, connect the TH
Module to the Main Module or to 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.
CAT5 (or equivalent) cable connecting to the next TH
Module in the cascading configuration.
This port may be used to link to a TH Module or to
plug in an APC terminator.
Connect the TH Module to the system.
Add a stabilized power supply (AP9505i)
where needed.
User Inputs24 VDC
Input
123
4
–+ –+–+–
+
D
0
G
N
D
D
1
+
–
A
larm Beacon
Voltage
Output
User Inputs24 VDC
Input
1234
–+ –+–+–
+
D
0
G
N
D
D
1
+
–
A
larm Beacon
Voltage
Output
aem0078a
+
+
1224
N
O
G
N
D
C
O
M
N
C
(AP9340)
Main Module
TH Module
(AP9341)
TH Module
(AP9341)