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2
8-Area LCD RAS
Installation Instructions
Wiring
Figure 4 shows the J1 and J4 (AL-1108 only) wiring terminal
block locations.
Figure 4. Wiring terminals
J4
CLK DATA 0V +12V
J4 Terminal
block
J1 terminal block
Figure 5 shows optional wiring features for the J1 terminal block
and Table 1 describes the terminals.
Figure 5. Typical J1 wiring
Optional door
control or
auxiliary relay
12 V relay
50 mA max.
Table 1.
J1 wiring terminals
Terminal
Description
+14V, 0V
Power supply.
D+
Data positive connection of the databus (LAN).
D-
Data negative connection to the databus (LAN).
IN
A request-to-exit (egress) button (normally open,
momentary push-button switch), can be connected
across the In and 0V terminals. When pressed, this
button controls the request-to-exit function.
OUT
Open collector output, 50 mA maximum. It is the first
output of the output control group that is assigned to
this RAS. Refer to your Alliance system programming
documentation for details.
DIP
Switches
Mode Add
ABCT 1234
J1
OUT IN D- D+ 0V +14V
J1 Terminal
Polling
block
J1
+14V
0V
D+
D-
IN
OUT
Optional egress
push-button
J4 terminal block (AL-1108 only)
Figure 6 shows how to connect the J4 terminals to a Wiegand
interface (not for 5V readers) and Table 2 describes the termi-
nals.
Figure 6. J4 wiring
Wiegand
interface
TX1
RX1
Table 2.
J4 wiring terminals
Terminal
+12V, 0V
CLK, DATA
Note:
Shielded cable must be used (Belden 8723 or equivalent).
LEDs
The unit provides status, area, and polling LEDs.
LEDs
Status LEDs
The large status LEDs (Figure 2 on page 1) indicate:
Power. Green LED illuminates if AC power is available to
the system.
Fault. Yellow LED illuminates for system faults or trouble.
Alarm. Red LED illuminates on any alarm in an area
assigned to the keypad.
Access. Blue LED illuminates on both the AL-1103 and
AL-1108 when certain system trouble conditions occur
(missing battery). The LED also illuminates on the AL-1108
when access is granted.
Area LEDs
The eight small red area LEDs (Figure 2 on page 1) illuminate
when areas 1 to 8 or 9 to 16 are armed. The LEDs will flash on
alarm.
Polling LEDs
The two polling LEDs (Figure 4) indicate:
RX. The RX LED flashes when polling data is being
received on the system databus (LAN) from the control
panel. If the LED does not flash, the control panel is not
operational or the databus (LAN) is faulty (usually cabling).
TX. The TX LED flashes when the RAS is replying to
polling from the control panel. If the RX LED flashes but
the TX LED does not, the RAS is not programmed to be
polled in the control panel or is addressed incorrectly.
Red
Black
White
Green
J4
Description
Power supply
Communication lines.
+12V
VSS(0V)
DATA
CLK
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