
SYSTEM 238 Installation Manual
5
Adjusting the LCD Display
To adjust the viewing angle, remove the keypad from the back
mounting plate. Towards the bottom center of the circuit board is
a small hole. Insert a small screwdriver into the hole and adjust
R23, while holding the keypad at its mounting height. Adjust the
potentiometer as necessary for optimum viewing.
Addressing Keypads
Each Alpha keypad installed in the system must have an address.
Addresses must not be repeated. When replacing a keypad,
make sure the replacement keypad has the same address as the
previous keypad.
The first time you power up the system, unaddressed Alpha
keypads will display KEYPAD ADDRESS?. Press any number
from 0 through 7 at each keypad. The exact number you press
is not important as long as each keypad has a different address
number. The keypad will not accept values outside of the specified
range. Should you accidently use the same address for more than
one keypad, the system will fail to properly respond to the keypad
input. Refer to page 23 for assistance in correcting this problem.
Once all keypads have been addressed, reset the panel by
pressing [Master Combination] [*] [6] [8] [#] or by tempo-
rarily removing both AC and DC power.
FACTORY SETTINGS
DEFAULT PROGRAM SETUP
The default programming of the SYSTEM 238 will allow you to
operate it as a local panel without any additional programming.
The actual default programming values are shown on the Pro-
gramming Worksheet (last 2 pages of this manual).
Note: If you connect power before wiring the loops, install
a 2.2K EOL resistor across each loops.
Combinations
Installer combination: 0 1 2 3 4 5
User #1 (Master) combination: 1 2 3 4
Users #2 - 8: disabled
Default installer combination: yes
Guest combination: no
Combination required: no
Arming type: goof-proof
Opening/Closing: disabled
Duress: disabled
Reporting
Account #1 and #2: disabled
Dialing type: pulse
RPS allowed: yes
Zones
Zone 1 = Entry/Exit delay - EOL circuit
Zone 2 = doors or windows - EOL circuit
Zone 3 = doors or windows - EOL circuit
Zone 4 = doors or windows - EOL circuit
Zone 5 = interior - EOL circuit
Zone 6 = interior - EOL circuit
Zone 7 = 24-hour panic or tamper - EOL circuit
Zone 8 = fire or smoke - supervised EOL circuit
Emergency soft zone: chirp audible
Fire soft zone: pulsed audible
Police soft zone: steady audible
Testing
Test report interval: 7 days and disabled
Timing
Entry time: 60 seconds and prewarn
Exit time: 30 seconds and prewarn
Bell time: 5 minutes
Unit Control
Local system: yes
Dynamic battery test: off
PROGRAMMING OPTIONS
The following is an alphabetical listing of all SYSTEM 238 program-
ming options, including Command Locations and Digit Positions.
Digit Positions are inside parentheses ( ).
Option Location
Account #1 0C (1-6)
Account #2 10 (1-6)
Alarm Code by Loop 17 - 1E (1-2)
Alarm Loop Shunting by Loop 30 - 37 (2)
Alarm Receiver Select by Loop 1F - 26 (1)
Audible Time 2D (5)
Audible Type by Loop 1F - 26(5)
Bell Reverse Operation 2E (3)
Cancel Receiver Select 2A (6)
Cancel Report Code 2A (5)
Closing Report Code 2C (3)
Closing Report Receiver 2C (4)
ALPHA KEYPAD INFORMATION
The Alpha keypad uses a top viewing display. This means the display
reads most clearly when viewed from a top angle rather than straight
on or from below. Mounting the keypad at the light switch level and
adjusting the viewing angle gives the best viewing results.
KEYPAD SETUP
Voltage Variations
Output voltages at the Sw/AUX, AUX, and KEY+ terminals may vary
between 9.0 and14.4 VDC (worst case), depending on the load,
battery condition, and AC line voltage.
SYSTEM START-UP
Five minutes after the panel is powered up, it will dynamically test the
standby battery by interrupting AC power for two minutes and
monitoring the battery under load.
Standby Battery Time with One LED Keypad
AUX POWER DRAIN*
50 mA 32 hours
STANDBY TIME
* Total power for all keypads, auxiliary, and Loop 8
150 mA
250 mA
500 mA
24 hours
16 hours
10 hours
If you replace the battery after a SYSTEM TROUBLE - LOW BATTERY
message, you must test the battery under load conditions. Press [*]
[6] [4] [#] to start the Dynamic Battery Test.
9.X PCF
The 9.X PCF has eight flying leads. Wire them to the PCB terminals
as follows:
GRAY = ring seized
GREEN = tip
RED = ring BROWN = tip seized
BLUE and ORANGE = tamper
YELLOW and BLACK = not used
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