4
Morrison Bros. Co. ‑ Dubuque, IA ‑ 800‑553‑4840
918S‑‑1130 PP rev 12‑21‑2020
The Channel Input Connector
Insert the wire fully into the connector and snug the screw.
Figure 2 Wiring the Channel Input Connector
• The Channel Alarm indicators will illuminate when the Audible Alarm is not sounding. If configured
for no audible alarm, only the Channel Alarm indicator(s) will flash.
• BATTERY LOW indicator is NOT illuminated after the initial momentary flash.
d.
Troubleshoot as needed.
If the Audible Alarm does not sound or the BATTERY LOW indicator
illuminates after the initial flash, replace the 918S Battery Assembly (see instructions, below). If the
Audible Alarm still does not sound or the BATTERY LOW indicator illuminates, replace the Alarm Box
or call Morrison Bros. Co. Customer Service.
e.
Turn off
the power switch, SW5 before proceeding (see Figure 1).
4.
Connect
the two wires from each input device to the Input of the Alarm
a. Connect the two wires from each input device to their respective Channel Input Connector(s) (see Figure
2).
b. Verify that the wires are securely held in the connector by gently tugging on them. Plug the connector
onto the Channel Input pins of the Alarm Circuit Board (see Figure 3).
Strip off about ¼ inch (5mm) of insulation from the wire and twist the striped end to eliminate stray wire
strands as shown above.
Figure 3 Plug the Channel Input Connector(s) onto the Channel
Input Pins of the Alarm Circuit Board (918Q shown)
Channel 1
J1/P1
(S/D/Q)
Channel 2
J2/P2
(D/Q)
Channel 3
J3/P3
(Q)
Channel 4
J4/P4
(Q)
