6
Morrison Bros. Co. ‑ Dubuque, IA ‑ 800‑553‑4840
918SB‑0134 PP rev 8‑3‑2017
a.
AUDIBLE ALARM OPTION
i.
To Enable the Audible Alarm for Alarms (default):
If the Audible Alarm is to sound when an
alarm condition occurs, place DIP switch position 1 in the ON position.
ii.
To Disable the Audible Alarm:
If the Audible Alarm is NOT to sound when an alarm condition
occurs, place DIP switch position 1 in the OFF position.
NOTICE:
When the Audible Alarm is disabled (silent operation) the alarm condition will only flash
the Beacon and illuminate the Channel Alarm Indicator(s). Ensure that the Alarm is in a position
where it can be clearly seen so that an alarm condition does not go unnoticed.
NOTICE:
When the Audible Alarm is disabled (silent operation) Audible Alarm will not sound
during the Test Mode.
b.
AUTO-SILENCE OPTION
i.
To Enable the Autosilence Feature (default):
If the 918 Series Alarm is to silence itself after
being in an alarm condition for 10 minutes, place DIP switch, position 2 in the ON position.
ii.
To Disable the Autosilence Feature:
If the 918 Series Alarm is to continue to flash its Beacon,
illuminate its Channel Alarm Indicators (918DB and 918QB) and sound the Audible Alarm (if
enabled) until either an operator acknowledges the alarm by pressing the Test/Cancel button or the
battery is no longer able to power the Alarm Box, place DIP switch, position 2 in the OFF position.
NOTICE:
When the Autosilence feature is disabled, the Alarm will flash its Beacon, illuminate its
Channel Alarm Indicator(s) (918DB and 918QB) and sound the Audible Alarm (if so configured)
until the battery can no longer power the Alarm Box. Operational verification should be checked
on a more frequent schedule if the Autosilence feature is disabled.
c.
CONTACT MODE OPTION
i.
Normally Open Contact Input Devices (default):
If the input device(s) to be connected to the
918 Series Alarm utilize normally open contacts, set DIP switch, position from Table 2 in the OFF
position (see Figure 5).
ii.
Normally Closed Contact Input Devices:
If the input device(s) to be connected to the 918 Series
Alarm utilize normally closed contacts, set DIP switch, position from Table 2 in the ON position
(see Figure 5).
NOTICE:
When the 918 Series Alarm is configured for Normally Closed Contact input devices,
the long term battery life will be somewhat shorter due to the current that must continuously flow
through the contacts to verify their position. Operational verification should be checked on a more
frequent schedule if the inputs are configured for Normally Closed Contacts.
NOTICE:
Changing the DIP switch configuration settings requires two steps:
• Configure the DIP switch, SW3 as desired.
• Press and release the RESET button, SW4 (see Figure 4).
6. Power Switch
a.
Turn OFF the power (DEFAULT):
To turn OFF to the 918 Series Alarm, place SW5 in the OFF
position. (see Figure 1)
b.
Turn ON the Power:
To turn ON the power to the 918 Series Alarm, place SW5 in the ON position
(see Figure 1)
Channel
DIP Switch Position
1
3
2
4
3
5
4
6
Table 2 Channel to DIP Switch Position Mapping
