When choosing the AC outlet location for the AC power
transformer, make sure the outlet is not controlled by a
switch or that it is not part of a ground fault circuit
interrupt (GFCI).
3. Hold the panel against the wall and mark the mounting
hole locations with a pencil.
4. Mount the back piece to the wall through the two
horizontally centered mounting holes near the top and
bottom using the supplied mounting hardware. Use
wall anchors if no studs are present.
Connecting hardwired devices
The panel has five screw terminals, two battery terminals,
and two telephone connections. The screw terminals
connect the AC power, sirens, and or hardwired detectors.
Figure 1: Wiring terminals
HW
1 I/O
HW1
&
2
D
C
out
HW
2
i
n
9V
A
C
i
n
9V
A
C
i
n
B
a
tte
ry
+
B
a
tte
ry
-
Program sensors and devices before you install them.
Follow the instructions in “Sensors” on page 5 to add the
sensors to panel memory.
The HW1 I/O terminal is dual purpose and can be used for
either siren or hardwired contact connections. The HW2 in
terminal is an input only.
Interior sirens
From the factory, the HW1 I/O input (terminal 1) is set up for
interior siren operation (status and alarm sounds). The
HW1&2 DC out (terminal 2) provides the positive (+) voltage.
Note:
The total current available from the HW1&2 DC out
terminal is 250 mA at up to 120ºF (49ºC). A 24-hour battery
standby for UL requirements will be met with a maximum
load of 250 mA.
With Hardwired Siren Supervision turned on, sirens
connected to HW1 I/O are supervised and require a 4.7-
kohm resistor in the circuit. If this terminal is not used, turn
Hardwired Siren Supervision off.
Hardwired contacts
You can connect hardwired reed switches (normally closed
loop only) to HW1 I/O (if not being used for a hardwired
siren) an/or HW2 in (terminal 3).
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 wired 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 Figure 2
below. The resistor must be connected at the last switch in
the circuit.
Figure 2: Normally closed hardwired reed switches
HW
1 I/O
47 kohm resistors
HW
1
&
2
D
C
out
HW2
in
9V
A
C
i
n
9V
A
C
i
n
B
a
tter
y
+
B
a
tter
y
-
Note:
Do not install the resistor at the panel terminals. This
does not provide supervision of the wire.
Wiring phone lines
You can connect a phone line to the panel for systems
monitored by a central monitoring station or systems that
notify users by a voice event notification.
DSL (digital subscriber line) allows the use of multiple
devices on a single phone line simultaneously. For DSL
environments, connect the panel line-in jack to an available
phone jack on the premises. You might also need an inline
filter to ensure panel reporting is successful.
Note:
Avoid connecting the panel to a standard phone
(voice) line in this manner. Other devices in use at the same
time the panel is using the line can prevent reports from
going through.
Full line seizure
Full line seizure allows the panel to take over (seize) the
phone line, even if another device on the line is in use. This
method requires that the panel be wired before all other
phones, answering machines, computers, or other devices
on the phone line. You may need to verify the line seizure
for UL installations.
2
Simon XT V2 Installation Guide
