C
ONNECTING
O
THER
S
ENSING
D
EVICES
TO
C
ONTROL
U
NIT
See Figure 1 on page 1.
The CT-2B is engineered to accept other sensing devices in conjunction with or exclusive of the CT
-6 sensor probe. You may use as many and as varied sensing devices as you like. To do so, you will
need the following:
1. A sensing device with a normally open, floating, dry relay contact
2. A 500 - 1000 ohm resistor
To connect your sensing device to the CT-2B, attach one side of the device to terminal 10, the
other side to terminal 12 and place a 500 - 1000 ohm resistor across those two terminals.
I
NSTALLING
S
OUNDERS
(A
NNUNCIATORS
)
MOUNTING
Install the sounders in a single-gang electric box for flush mounting.
WIRE
Use CAT-5 wire. To avoid corrosion, solder-tin the ends of the wires before connecting to the
sounder and control unit . Always connect the wire to the sounder first and then to the control unit.
WIRE CHECK-OUT
After connecting wires to the sounder, and before connecting to the control unit, systematically
measure the resistance between each wire with every other wire.
Resistance should never be less
than 75 ohms
. Resistance less than 75 ohms shows damage to the wire between control unit
and sounder (e.g., a staple through the wire) and will damage the power supply if it is connected to
the control unit.
CT-A1 SOUNDER FEATURES AND INSTALLATION (REPLACES FC-9, CT-8, CT-8A SOUNDERS)
THREE TONES
The CT-A1 allows three tones: steady, slow-pulse, fast-pulse. It is suggested the installer sample
the tones for the customer to choose. To hear a sample of the steady tone, push the button marked
“PROG.” To hear a sample of the slow-pulse tone, push the button marked “DOWN.” To hear a
sample of the fast-pulse, push the button marked “UP.” Note: power must first be applied to the CT-
A1 before it will sound.
PROGRAMMING VOLUME
To adjust volume, keep the button marked “PROG” pushed in the entire time you are increasing or
decreasing volume (it will continue to sound as long as it is pushed in, demonstrating adjusted
volume).
With “PROG” pushed in, push the button marked “UP” to increase volume one increment. Keep
“PROG” pushed in, wait one second, and push “UP” again. Repeat until desired volume is reached.
With “PROG” pushed in, push the button marked “DOWN” to decrease volume one increment.
Keep “PROG” pushed in, wait one second, and push “DOWN” again. Repeat until desired volume is
reached.
Note: when highest or lowest volume setting is reached, the LED will blink once.
MUTING SOUNDER
To mute sounder, keep “PROG” button pushed in and push the “DOWN” button two times in quick
succession (in less than one second). The LED will begin blinking and continue blinking the duration
of the mute cycle. To restore sound, hold “PROG” button down and push the “DOWN” button two
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