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SERIAL No.
PSU/CHGR FLT
SK1
BATT
FLT
F1
PWR
ON
SK2
TB2
28V
0V
! !
500mA
DO NOT USE
DO NOT USE
CONNECTION
CONNECTION
MARKED __
MARKED __
! !
NOTE - If short circuit isolation is not
required, loop output + should be wired
to terminal 5 and not 2. Terminal 5 is
internally connected to terminal 4.
-
LOOP OUT
+
-
LOOP IN
+
SEE NOTE
+
TB4
CHGR INHIB
CMX
-2E
-
From
1 (-)
+
panel/device
2 (+)
3 (-)
4 (+)
NOTE - Break
both tabs (J1
and J2)
TB4
CHGR INHIB
IGNORE THIS LED
IGNORE THIS LED
WHEN USING AN
WHEN USING AN
EXTERNAL POWER
EXTERNAL POWER
SUPPLY
SUPPLY
SERIAL No.
PSU/CHGR FLT
SK1
BATT
FLT
F1
PWR
ON
SK2
TB2
28V
0V
! !
500mA
0V & __
0V & __
! !
CONNECTIONS
CONNECTIONS
USED WITH
USED WITH
EXTERNAL PSU
EXTERNAL PSU
Installing the Network Gateway Unit (Continued)
TB1
PARK
JP3
JP1
PARK
JP4
CHGR.
COM
JP2
TB3
INHIB
FAULT
TB4
N/O COM N/C
CHGR INHIB
M701
A B
1
0
4
5
4
5
3
6
3
6
2
7
2
7
1
8
1
8
0
9
0
9
A
x10
B
x1
C
-
To
+
device
9 (+)
8 (-)
7 (-)
6 (+)
5
TB1
PARK
JP3
JP1
PARK
JP4
CHGR.
COM
JP2
TB3
INHIB
FAULT
TB4
N/O COM N/C
CHGR INHIB
Wiring Connections - PSU3A to Network Interface
PCB - if using PSU3A
SK1 is used with the PSU3A (ribbon connector).
SK1 is used with the PSU3A (ribbon connector).
SK2 is used with the PSU3A (four-wire dc output connector).
SK2 is used with the PSU3A (four-wire dc output connector).
TB1 is pre-wired to the Network PCB (5V dc supply and fault signal).
TB1 is pre-wired to the Network PCB (5V dc supply and fault signal).
TB2 provides either a 500mA or 2A dc power output - the latter is only
TB2 provides either a 500mA or 2A dc power output -
available for limited periods, e.g. during alarm
available for limited periods, e.g. during alarm. To use the 500mA supply,
simply connect to the 0V and 28V 500mA contacts - this supply is suitable for a
simply connect to the 0V and 28V 500mA contacts - this supply is suitable for a
repeater. To use the 2A supply, proceed as follows:
repeater. To use the 2A supply, proceed as follows:
i
i
Remove fuse F1 and replace with one of the supplied T 2A H 250V fuses.
Remove fuse F1 and replace with one of the supplied T 2A H 250V fuses.
ii
ii
Connect to the 0V and 28V 500mA contacts. The supply cannot charge
Connect to the 0V and 28V 500mA contacts.
the batteries while delivering 2A,
the batteries while delivering 2A, so you must temporarily inhibit the
charger by joining together both contacts of TB4 (see examples opposite
charger by joining together both contacts of TB4 (see examples opposite
- remember to add the control module to the control matrix!). Whenever
- remember to add the control module to the control matrix!).
the charger is inhibited there will be no charge replenishment to the
the charger is inhibited there will be no charge replenishment to the
batteries. The charger inhibit link must be at JP4 (PARK) NOT JP2
batteries. The charger inhibit link must be at JP4 (PARK) NOT JP2
(CHRG INHIB) - if charging is permanently inhibited the batteries
(CHRG INHIB) - if charging is permanently inhibited the batteries
will discharge resulting in a battery fault message at the fire panel.
will discharge resulting in a battery fault message at the fire panel.
Never use the terminal marked __ as an output.
Never
use the terminal marked __ as an output.
TB3 is a common fault output. The relay de-energises if there is a PSU or
TB3 is a common fault output. The relay de-energises if there is a PSU or
battery fault. With link JP3 fitted (PARK position) the output takes the form of
battery fault. With link JP3 fitted (PARK position) the output takes the form of
volt-free contacts rated at 30Vdc, 1A (resistive load). With the link removed
volt-free contacts rated at 30Vdc, 1A (resistive load). With the link removed
from JP3 and fitted to the '+5V' position, the common contact is taken to 5V dc
from JP3 and fitted to the '+5V' position, the common contact is taken to 5V dc
via a 1k resistor. With the link removed from JP3 and fitted to the '0V' position,
via a 1k resistor. With the link removed from JP3 and fitted to the '0V' position,
the common contact is taken to 0V via a 1k resistor.
the common contact is taken to 0V via a 1k resistor.
TB4 allows application of an external charger inhibit signal as described
TB4 allows application of an external charger inhibit signal as described
above.
above.
EMC requirements: a ferrite (supplied with the NGU) is
EMC requirements: a ferrite (supplied with the NGU) is
required for the dc power output cable, for the fault signal
required for the dc power output cable, for the fault signal
! !
cable, and for the remote charger inhibit signal cable. Fit the
cable, and for the remote charger inhibit signal cable. Fit the
ferrite directly under the gland at the back box knockout.
ferrite directly under the gland at the back box knockout.
The screen (if plastic glands are used) and all cores (plastic
The screen (if plastic glands are used) and all cores (plastic
or metal glands) of the cable must pass through the ferrite.
or metal glands) of the cable must pass through the ferrite.
Jumper Link Setting
Jumper Link Setting
JP1 and JP3 are used in conjunction with TB3 as described above.
JP1 and JP3 are used in conjunction with TB3 as described above.
JP2 is used to permanently inhibit the charger. JP4 is used if the charger is not
JP2 is used to permanently inhibit the charger. JP4 is used if the charger is not
to be inhibited. Always place link on JP4. See the description of TB2 above.
to be inhibited. Always place link on JP4. See the description of TB2 above.
Wiring Connections - PSU3A to Network Interface
PCB - if using External Power Supply
TB1 is pre-wired to the Network PCB (5V dc supply and fault signal). This
TB1 is pre-wired to the Network PCB (5V dc supply and fault signal). This
connector will require re-wiring as described in the Section 'Using an External
connector will require re-wiring as described in the Section 'Using an External
28V Power Supply - Optional'.
28V Power Supply - Optional'.
TB2 is used as described in the Section 'Using an External 28V dc Power
TB2 is used as described in the Section 'Using an External 28V dc Power
Supply - Optional'.
Supply - Optional'.
SK1, SK2, TB3 and TB4 are not used in this application. Do not make any
SK1, SK2, TB3 and TB4 are not used in this application. Do not make any
connections.
connections.
Jumper Link Setting
Jumper Link Setting
In this application, links should be placed on JP3 and JP4. Do not place links
In this application, links should be placed on JP3 and JP4. Do not place links
on JP1 and JP2.
on JP1 and JP2.
6
the latter is only
. To use the 500mA supply,
The supply cannot charge
so you must temporarily inhibit the
! !
997-451, Issue 6 July 2006
Whenever
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