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