Main Control Board
TB1
AC Input
16.5V, 40VA
(P/N 859-2246)
TB2
(+)
(-)
(+)
(-)
O/P1
O/P2
O/P3 Siren
O/P4
(+)12V
(-)0V
O/P Current Ratings
O/P1&4 = 10mA
O/P2 = 750mA
O/P3 = 1.8AMP
Telco Off Hook
TB4
Seized Tip
Seized Ring
Tip
Ring
TB5
If using Station "Z" Quad cable for ground,
use all 4 conductors. Two wires can be
connected to terminal 1 and two to terminal 2.
(-)
(+)
Resetable Fuse Notes
Will disconnect power if DC current
draw exceeds 1.8AMP.
WARNING: Very hot when
triggered: 120°C.
Disconnect battery for 1 min. to reset or,
silence siren. Hydro can stay connected.
Installation Notes for Further Reduction of RF Emissions
1. Terminating cables inside metal enclosure must never cross over the motherboard, behind
it or on top of it. Cables must run along the sides of the board.
2. Cables being brought into the box should come in through the "knock out" nearest the
terminal block it is being terminated at. E.g. A/C transformer cable should be brought in
through the knock out nearest the A/C termianl block. Avoid leaving long cable lengths around
the board or inside box.
2
Fire
Main Control Board
18V, 40VA
(P/N 859-0052)
18 AWG CONNECTION
CABLE REQUIRED
Siren & Battery
are fused
F2
by a 1.8AMP
resetable fuse.
See note
below.
SIREN
Battery
(-)
(+)
BATTERY
PLUG
Watchdog LED
LED
TELEPHONE
F3
1.5 AMP
P/N 342-3821
EARTH
GROUND
Monitor ISM/xL™ Hardware Guide
KNOCK OUTS
Use plastic 3/4 in. bushings
P/N 364-5100 to insert in knockouts
before bringing in cables.
To Clear Memory
with no power to panel
Short the upper left and
lower right silver pads.
R
micro-
A
processor
M
J5
IN (default) for Non
TAMPER
Res. UL Fire
SPRING
OUT for Res. UL Fire
P/N 936-6800
TB7
TB8
TB6
1 2
3 1
2
3
1
2
Do not connect modules to this Module Bus connector
Reserved for Service use with LCD Keypad.
CABLE
INLET
32 pin
E-prom
socket
F5
TB9
MODBUS 1
3
1
2
3
1
2
3
4
TB10
Host RS485
0V
B485
A485
GND/GND
CTS/RTS
RTS/CTS
DSR/DTR
DTR/DSR
TX/TX
RI/RI
CD/CD
RX/RX
(-)0V
Data B
Data A
(+)12V
22-0375 rev1.1
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