Unit installation

21
3 A Smart Power Supply Unit (Smart PSU)
One 3 A Smart Power Supply Unit (Smart PSU) can be connected to the Galaxy
16 and 16 plus control panels. The Smart PSU integrates a three ampere power
supply with an eight zone, four output Galaxy RIO. This may be used in place
of a standard RIO to overcome power problems that arise when the additional
RIO is fitted distant to the control panel.
Notes: Only one Smart PSU or one RIO can be connected to the Galaxy 16 and 16
plus control panels.
A Smart PSU fitted to a Galaxy 16/16+ has full on-board RIO facilities but
it does not have the “Smart” power diagnostic facilities available with
other Galaxy control panels.
The addressing, zone and output wiring is identical to that of the Galaxy RIO,
see Optional Modules; Galaxy Remote Input Output (RIO) Module.
The Galaxy Smart PSU must be addressed as 1. It must be addressed before it
is powered up, the address is selected using the 16-way rotary switch (SW1),
refer to Figure 2.2 Galaxy 3 A Smart PSU PCB Layout.
Figure 2.2 Galaxy 3 A Smart PSU PCB Layout.
Table 2.3 RIO Output Default Functions.
+–
A B T – + – + 4 3 2 1
JP 2
R 23
R 33
R 37
R 43
S 1
+ – A B
F 4 (1.5 A)
F 3 (1.5 A)
LED 1
F 2 (2.5 A)
LK 3
LK 2
SW 1
JP 3
1
2 5 63 4 7 8
JP 1
+
–
Heat Sink
Connect to Stand-by Battery
(observing polarity)
Smart PCB Earth (Fit nylon washer if remote PSU)
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Smart PSU