Terminal Connections - DSC PC4000 System Manual

TERMINAL
CONNECTIONS
This "Terminal Connections" section only refers to the
main board of the PC4000 system. Other connections
are shown in the module wiring diagrams.
"AC" Power Terminals
Use a 16.5 VAC transformer with a minimum 40 VA
rating to supply AC power to the PC4000. The
transformer should not be connected to an outlet that is
controlled by a switch. If AC failure occurs, it will be
displayed as a trouble on the keypad (see "Keypad
Commands, [ ][2] Trouble Conditions"). It can also be
transmitted to the monitoring station as a trouble
condition (see "Programming Manual").
Auxiliary Power Terminals "AUX" and "GND"
The auxiliary power supply can be used to power motion
detectors and other 12 VDC devices. The "AUX"
(positive) and "GND" (negative) terminals provide 500
mA 12 VDC when the PC4000 is used with one
keypad. For each additional keypad the auxiliary supply
rating must be reduced by 25 mA. The auxiliary supply
is fused at 1 amp and a Main Aux Trouble Reporting
Code can be transmitted if the fuse fails. (See
"Programming Manual".)
Switched Auxiliary Power Terminals
"SW AUX" and "GND"
The "SW AUX" terminal is positive while the "GND"
terminal is negative. The 500 mA auxiliary supply rating
must be reduced by any current taken from the switched
auxiliary supply which shares the same fuse as the
auxiliary supply. This output is fully programmable, but is
most commonly used with the "Sensor Reset" option,
allowing the user to control the switch from the keypad.
(See "Keypad Commands".)
Bell/Siren Terminals
"BELL +" and "BELL -"
These terminals are for powering bells or other devices
requiring a steady output voltage on alarm. The bell
output is fused for 5 amps. When connecting sirens
(speakers with siren driver already built-in), be sure to
observe the correct polarity. Connect the positive lead
to the "BELL +" terminal and the negative lead to the
"BELL -" terminal.
If no siren or bell is used, connect a 2200 ohm resistor
between "BELL +" and "BELL -".
Programmable Output Terminal "PGM"
The operation of the Programmable Output depends
upon which option is selected in the programming table.
See the Programming Manual for a list of options for the
"PGM" output. The "PGM" is a 3A (maximum) switch to
ground. A small relay, a buzzer or other DC operated
device may be connected between the 12 VDC "AUX"
(positive) terminal and the "PGM" (switched negative)
terminal to interface with controlled devices.
COMBUS Terminals
"R ED", "B L K", "YE L" a n d " G R N"
Connect the red wire of the COMBUS to the "RED"
terminal, the black wire to the "BLK" terminal, the
yellow wire to the "YEL" terminal and the green wire to
the "GRN" terminal. The COMBUS is wired in the same
manner on all modules. The COMBUS is used by the
main panel to communicate with and supply power to
the modules.
The COMBUS power supply terminals are fused
electronically.
When connecting modules to the COMBUS the
system must not be powered.
Zone Input Terminals "Z1" to "Z16"
Zone inputs "Z1" to "Z16" can be supervised end of line
(E.O.L.) resistor circuits or normally closed loops. If
E.O.L. are used, each input must be terminated with a
2200 ohm E.O.L. resistor. An alarm condition will be
created if a normally open contact is used to short
across the E.O.L. resistor. A trouble is created if
normally closed contacts, wired in series with the E.O.L.
resistor, are opened. See "Zones E.O.L." in the
Programming Manual. See the wiring diagram for
normally open and normally closed contact connections.
The type of circuit or zone definition (delay, instant, 24
hour, silent, audible, etc.) is programmed from the
keypad using the installers programming commands.
Telephone Terminals
"T I P ", "R N G ", " T-1" a n d "R-1"
The wires from the RJ31-X telephone jack are
connected to these terminals in the following way.
TIP Green wire
RNG Red wire
T-1 Brown wire
R-1 Grey wire
NOTE: For proper operation, there must be no other
telephone equipment connected between the control
panel and the telephone company's facilities.
Ensure that plugs and jacks meet the dimension,
tolerance and metallic plating requirements of 47 C.F.R.
Part 68 Subpart F.
Battery Connections
Do not connect the battery or the transformer until the
wiring is complete. Connect the red battery lead to the
positive battery terminal and the black lead to the
negative battery terminal. If the connection is reversed
the battery fuse will blow.
Values shown are in conformance with UL specifications which
do not take into account current that may be available from a
stand-by battery.
13
Incoming line from
telephone company
Outgoing line to
house telephone(s)