Honeywell Galaxy 3-48C Installation Instruction
Galaxy 3 Series Installation Manual
3-12
Figure 3-5. Power Supply Unit
Power Supply Unit
Power Supply Unit
The Galaxy 3 Series Power Supply Unit is available in 2 variants.
The Galaxy Power Unit is a 3 ampere power supply. The Galaxy Power RIO is a Power Unit plus an on-
board Remote Input Output (RIO) module. Each variant can be integrated with all Galaxy control panels, with
the exception of the Galaxy 8. The number of Power Units or Power RIO’s that can be used on a system is
limited by the number of RIO’s that can be added to each panel.
The Galaxy Power Unit is a 3 ampere power supply. The Galaxy Power RIO is a Power Unit plus an on-
board Remote Input Output (RIO) module. Each variant can be integrated with all Galaxy control panels, with
the exception of the Galaxy 8. The number of Power Units or Power RIO’s that can be used on a system is
limited by the number of RIO’s that can be added to each panel.
Configuration
The Galaxy Power Supply Unit (PSU) consists of 2 modules, the Power Block and the Control Unit. The
PSU can be connected to the Galaxy 3 Series control panel via the RS485 (AB) line. The PSU can 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.
A 6-way jumper lead connects the Power Block to the Control Unit.
The PSU has 8 zones and 4 outputs. Each PSU takes one of the 4 RIO address (2 - 5). Addressing is identi-
cal to that described for RIO Modules.
The 4 outputs are switched 0V (0V active). Without the jumper links (LK1-4) fitted, the outputs will float in
the OFF state. They can apply a +12V signal, if required, by fitting the appropriate pull-up jumper supplied.
LK5 will short out the off-wall tamper if it is not used.
The SLAVE and E/E links must be in place for normal operation.
PSU can be connected to the Galaxy 3 Series control panel via the RS485 (AB) line. The PSU can 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.
A 6-way jumper lead connects the Power Block to the Control Unit.
The PSU has 8 zones and 4 outputs. Each PSU takes one of the 4 RIO address (2 - 5). Addressing is identi-
cal to that described for RIO Modules.
The 4 outputs are switched 0V (0V active). Without the jumper links (LK1-4) fitted, the outputs will float in
the OFF state. They can apply a +12V signal, if required, by fitting the appropriate pull-up jumper supplied.
LK5 will short out the off-wall tamper if it is not used.
The SLAVE and E/E links must be in place for normal operation.
FAULT OP AC: This is an open collector transistor which is normally off. The output is activated by an AC
failure.
FAULT OP BAT:This is an open collector transistor which is normally off. The output is activated by a
Battery Low or Battery Fail condition.
FAULT OP POWER: This is an open collector transistor which is normally off. The output is activated by
low voltage present in +12V1, +12V2 or +14.5V.
failure.
FAULT OP BAT:This is an open collector transistor which is normally off. The output is activated by a
Battery Low or Battery Fail condition.
FAULT OP POWER: This is an open collector transistor which is normally off. The output is activated by
low voltage present in +12V1, +12V2 or +14.5V.
1
1/2
2
3
3/4
4
5
5/6
6
7
7/8
8
Zones 1-8
HEATSINK
Comms
Line
Line
Outputs
Rotary
Address
Switch
Address
Switch
AC BATPWR 0V
OP1
OP2
OP3
OP4
LID
TAMP
OW
TAMP
+14.5
0V
+12V1
A(DO)
B(DI)
F1
F4
F3
F2
LK1
LK2
LK3
LK4
-BAT
+BAT
AC/F
BT
0V
14.5
0V
13.8
LED1
(comms)
(comms)
LED2
(AC)
(AC)
Control Unit
+12V2
0V
0V
FAULT OP
Off-wall
Tamper
Tamper
From
Power
Block
Power
Block
Bell-Box
connection
connection
LK5
LK10
SLAVE
E/E
Mains
Terminal
Block
Terminal
Block
Power
Header
Header
To Control
Unit
Unit
Power Block
NEUTRAL
LIVE
13.8V
0V
14.5V
0V
BT
AC/F
BT
AC/F
WARNING: The Power Block PCB
is connected to mains voltage. Always
disconnect mains supply for at least
1 minute before removing the box lid.
is connected to mains voltage. Always
disconnect mains supply for at least
1 minute before removing the box lid.