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Replacement Mains Interface Board
Replacement
The external mains cable should be rewired so that it enters the enclosure above the Mains terminal
a.
block on the Replacement Mains Interface Board, this ensures there is segregation between mains and
extra low voltage cables. Also, each unused cable entry point must be fitted with a plastic bung.
b.
Fit the Replacement Mains Interface Board on a carrier into the enclosure
&
Ensure the board fixing screws are securely fitted as they form part of an earth continuity path to
the metal enclosure, this is necessary for electrical safety and for EMC compliance.
c.
Reconnect the external wiring to the terminal blocks
Board.
LOOP OUT
LOOP IN
LOOP
SPUR
0C LC 01 L1 02 L2
PB1
LOOP
External
Equipment
+
-
+ -
PB6
AUX O/P
Auxiliary Output: 0.25A
End-of-line units
Capacitor 22uF
Resistor 10KW
Brown, black, orange
Resistor 5K6KW
green, blue, red
Resistor 470W
yellow, violet, brown
Connected to
metal enclosure
Check and ensure the correct End Of Line units are fitted for the respective Zone and Sector circuits.
d.
Switch ON the mains supply to the Unit and then connect the battery lead to the batteries and to
e.
connector P7 on the Replacement Mains Interface Board.
Using the [Test/Eng] menu at the control panel [Allocate] the loop circuit, on which the Interface unit is
f.
connected. The interface unit should then be tested to site specific requirements.
Close the enclosure door and lock it using the key.
g.
4188-1005 issue 1_03/11_Replacement Board for 34440 MPI
Sector Output
with Sounders
Sector Output
W
10K EOL
with Inductive
load (eg Relay)
10K EOL
S+ S-
PB2, PB3,
PB4 or PB5
SECTOR 1, 2, 3 or 4
SECTOR 1, 2, 3 or 4
Zone Input
Intrinsically
safe devices
22uF EOL
1+
11+
Z+ Z-
PB2, PB3,
PB4 or PB5
ZONE 1, 2, 3 or 4
p
q
and
on the Replacement Mains Interface
IS Sector Output
Intrinsically
safe devices
W
2
IS Galvanic
isolator (02518-10)
12
Flyback
10K EOL
diode
S+ S-
PB2, PB3,
PB4 or PB5
SECTOR 1, 2, 3 or 4
IS Zone Input
5K6 EOL
2-
IS Galvanic
isolator (17740-30)
12-
Z+ Z-
PB2, PB3,
PB4 or PB5
ZONE 1, 2, 3 or 4
Installation
o
using the screws supplied.
1
11
W
S+ S-
PB2, PB3,
PB4 or PB5
To avoid damage to equipment always
configure the interface inputs and
outputs before connecting the external
circuits.
The combined maximum total current
load for sectors and auxiliary output
is 0.5A.
3
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