Simon XT
Installation Manual
22
Hardwired contacts
To set up
HW1 I/O
and/or
HW2 in
for hardwired contacts, make the required connections as described under
below, then proceed to the
on page 29 to add (learn) them into panel memory.
You can connect hardwired reed switches (normally closed loop only) to
HW1 I/O
(if not being used for a
hardwired siren) and/or
HW2 in
.
Note:
Connect only normally closed (NC) reed switches to
HW1 I/O
and/or
HW2 in
. Other types of hardwired detectors should
not be used.
The total resistance of the wire loop must not exceed 3 ohms. This allows you to use up to 200 ft. (61 m) of
two-conductor, 22-gauge stranded wire.
Connect hardwired reed switches to the panel using a 47 kohm resistor (not a 4.7 kohm resistor) as shown in
. The resistor must be connected at the last switch in the circuit.
Note:
Do not install the resistor at the panel terminals. This does not provide supervision of the wire.
Figure 7. Connecting normally closed hardwired reed switches
HW1 I/O
HW1&2
DC out
HW2 in
9 V
AC in
9 V
AC in
B
Battery -
47 kohm resistors
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