LiftMaster LM21XP LM21XP Manual - Page 9

Optional Connections Cont'd

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WIRING OPTIONAL CONNECTIONS (cont'd) DIP SWITCH SELECTION The release device will provide a factory default delay of 10 seconds (to minimize nuisance alarms) before releasing the fusible link chain upon alarm or power loss. A 4-position DIP Switch found on the PC board within the release device can be used to adjust the length of the delay to one of four preset delays. The optional delay settings are as follows: Delay Setting 10 Seconds 20 Seconds 30 Seconds 60 Seconds Switch Position 1 2 3 4 Off Off Off Off Off On Off Off On Off Off Off On On Off Off FIGURE 10 NOTE: Position 4 is unused and should remain in the OFF position. Position 3 is used to select one of the two available voice messages. ON 1 2 3 4 Factory default setting of 10 seconds shown. NOTE: Set all DIP switch options before applying power to the system. 9

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9
WIRING
OPTIONAL CONNECTIONS (cont’d)
DIP SWITCH SELECTION
The release device will provide a factory default delay of 10
seconds (to minimize nuisance alarms) before releasing the
fusible link chain upon alarm or power loss. A 4-position DIP
Switch found on the PC board within the release device can be
used to adjust the length of the delay to one of four preset delays.
The optional delay settings are as follows:
1
2
3
4
Factory default setting of 10 seconds shown.
ON
NOTE:
Position 4 is unused and should remain in the OFF position.
Position 3 is used to select one of the two available voice messages.
FIGURE 10
Delay Setting
Switch Position
1
2
3
4
10 Seconds
Off
Off
Off
Off
20 Seconds
Off
On
Off
Off
30 Seconds
On
Off
Off
Off
60 Seconds
On
On
Off
Off
NOTE:
Set all DIP switch options before applying power to the
system.