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TAMPER
- A 24Hr tamper circuit is available for monitoring tamper status of detectors, junction boxes, cabinets
and satellite sirens etc. This Tamper circuit is programmable with 2 options (P170E1E) either normally closed loop
or 2k2 EOL supervision( the default is normally closed loop). The tamper circuit must be terminated with an end-
of-line resistor if 2k2 EOL supervision is selected. Any Tamper alarms on this input are mapped to alarm outputs
in the same manner as for detection zones 1-4. Using Dual-End-of-Line resistors (Refer to Zone Type 4 on Page
4) the Tamper input can also provide two key-switches. The Low key-switch (4k7 resistor) operates Partition A
while the High key-switch (8k2 resistor) operates partition B. In this configuration the 2k2 resistor must still be in-
stalled to seal the system Tamper.
In addition to the Analogue monitoring inputs, you will find the following system inputs on your PW-4 control PCB;
AC
- Connect the two low voltage wires (no polarity) from the transformer to the terminals marked AC on the PW-
4 PCB. The PW-4 includes a mains transformer rated at 1.4 amps at 17 volts.
EARTH
- Always connect the mains earth to the appropriate terminal on the mains terminal block in the control
box cabinet. Also connect a lead from this earth point to the terminal marked with the Earth symbol (next to AC
terminals) on the PW-4 PCB.
BATTERY
- Connect a sealed lead acid rechargeable 12V d.c. battery to the red and black battery leads. Be
careful to observe correct polarity as damage may occur from incorrect connection. The minimum recommended
battery capacity is 7 amp hours. Battery charge current at these terminals is limited to 250mA maximum. The bat-
tery connection is fuse protected by fuse F2 ( 3A). The panel performs a test on the battery and if it fails the test
at any time it will flash the system LED (refer to the “View Memory” chart on page 9 for more details).
LINE IN
- This pair of terminals is used to connect the PW-4 to the incoming telephone line from the street. The
communicator uses this line for reporting.
LINE OUT
- This pair of terminals is used to connect telephones and other communication equipment to the in-
coming phone line via the PW-4 controller. The telephone line is passed through the PW-4 controller to ensure
that the line is available to the controller when it is required.
OUTPUTS
12 VOLT OUTPUTS
- There are two 12 volt dc outputs available on the PW-4 PCB. These 12 volt outputs are
both regulated and fuse protected. These outputs are marked 12v and 0v, and are supplied by fuse F1. A maxi-
mum total load of 1 amp may be drawn from these terminals.
OUTPUTS 1 & 2
- These fully programmable, high current, open collector (high-going-low) type FET outputs are
capable of switching up to
1A @ 12V d.c.
These 2 outputs are normally set as switched outputs, providing power
for 12v sirens or piezos.
If required, these outputs can be programmed to be siren outputs designed to drive an 8
ohm 10 watt horn speaker per output. Also if a horn speaker is connected to
Output #1
you may select (Refer to
P190E program address) the listen-in feature to this output as well so that the dialing sequence can be heard at
the speaker.
KEYP AD PORT
- The terminals marked
POS, NEG, CLOCK, & DATA
make up the communications port which
the keypads and other intelligent field devices use to talk to the PW-4 controller. The terminals are connected to
corresponding terminals on the remote devices. The keypad 12v output I(
POS,NEG
) is also protected by fuse
F1.
EXPANSION PORT -
The expansion port is for the connection of the Arrowhead RS232 serial board, 90 second
voice board or EPROM data transfer board (DTU). The serial board allows for the direct connection of a PC run-
ning the Upload/Download software. The 90 second voice board allows voice messages to be programmed for
monitoring purposes and remote control via a telephone.
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