Installation manual

3
SYSTEM 236 Installation Manual
Electromagnetic Interference
Vibrating horns can produce electromagnetic interference (EMI). While
EMI will not damage the SYSTEM 236, it can cause transmission
errors and mis-dialing. To minimize EMI, install a 0.01 mfd, 100 V
capacitor across the terminals of the horn. The capacitor must be
located in the horn.
SWITCHED
AUXILIARY POWER
The Terminal labelled C provides the power common.
Terminal Label:
Aux & C
The AUX(+) Terminal provides a positive 9.3 - 14.0
VDC for auxiliary devices that require switched
power for resetting. Typical devices include glassbreak
and smoke detectors.
WIRING THE PANEL
Terminal Label:
KEY, C, & DATA
KEY (+) Terminal (red) provides 9.8 - 14.0 VDC
keypad power.
C (-) Terminal (black) is common.
DATA Terminal (green) is for keypad data.
ARMING STATIONS
Maximum wire length for connecting any keypad is 500' (152 m) of 22
AWG (0.643 mm) copper wire.
The SYSTEM 236 is capable of addressing up to seven Alpha II and four
LED keypads. Each LED keypad uses 40 mA of current. Each Alpha II
keypad uses 64 mA of current. See Available Power for current
limitations. See pages 4 - 5 for additional information on keypad setup.
Fuse F2
KEY (+) Terminal is protected by a 3 AG, 0.5 A, fast-blow fuse.
LOOP INPUTS
Terminal Labels:
Z 1 - Z 6 & C
-
+
N.O.
Alarm
N.C.
Alarm
EOL Loop
Each loop is indepen-
dently configured
through programming.
Loops can be wired with
an open circuit switch,
or closed circuit switch,
or with a 2.2K ohm end-
of-line (EOL) resistor.
When programmed as
EOL, either an open or a short will be reported as an alarm if the
system is in an armed state.
Loops 1 - 6:
0.00 - 1.50 VDC = short
1.60 - 3.10 VDC = normal
3.20 - 5.00 VDC = open
STANDBY BATTERY
The SYSTEM 236 is designed to operate using a 12 V, 6.5 A-H
(Model 1265) or 12 V, 4.0 A-H (Model 1240) sealed lead-acid battery.
Do not use non-rechargeable batteries or batteries other than sealed
lead-acid. It is recommended that you replace the standby bat-
tery every four to six years.
Install the battery with the terminals oriented toward the hinge side of
the case and the battery mounted as close to the hinge as possible.
Connect the red lead to the positive terminal of the battery and the
black lead to the negative battery terminal. The panel is electronically
protected against reverse battery polarity.
Fuse F1
The BELL(+) Terminal is protected by a 3 AG, 1.0 A, slow-blow fuse
(F1). If any fuse opens, remove AC and DC power, remove the short
or overload condition, then replace the fuse before restoring power.
Do not substitute a higher rated fuse.
AUDIBLE OUTPUT
The BELL(+) Terminal (Audible output) provides up to
800 mA at 9.5 - 14.0 VDC.
Terminal Label:
BELL & C
Available Power
The maximum total power available at the BELL(+), AUX(+), and KEY (+)
terminals is 800 mA. The switched auxiliary and keypads share the
same power bus. The combined power for the AUX(+) and KEY(+)
terminals is 400 mA.
Do not exceed 400 mA for all keypads and
auxiliary devices.
DO NOT share the secondary of the transformer with other
devices. A foreign ground can damage the power supply,
voiding the warranty.
Precautions
DO NOT use any transformer other than that specified in
the AC POWER section above.
Improper placement of the battery may result in ground
trace shorting on the PCB.
WARNING:
AC POWER
Terminal Label:
AC
AC power is supplied from a 16.5 VAC, 25 - 40 VA
transformer at 50 or 60 Hz. A UL listed Class 2
transformer must be used. Connect the
secondary of the transformer to the terminals labelled
AC on the SYSTEM 236. Use at least 18 AWG (1.02 mm) wire to reduce
voltage drops. The primary side of the transformer must be
connected to an unswitched receptacle. Secure the transformer to
the wall.
AC Power Failure
If an AC power failure lasts more than 15 minutes, the keypads will display
a system trouble. An AC failure report will be sent, if programmed. When
AC is restored for five minutes, a restoral report will be sent.