LiftMaster LM21XPBB Extended Performance Release Device - Manual (Page 10)

10
W I R I N G
FIGURE 11
OPTIONAL CONNECTIONS (cont’d)
VOICE BOARD OPTION
The voice board provides one of two verbal warnings that the fire
door is closing. Typically, depending on the length of the delay
chosen on the release device, a warning tone will occur prior to
the message, which is approximately 10 seconds in length (for
example, a 20 second delay setting on the release device will
result in a 10 second warning tone followed by the verbal warning
message). There are two messages that may be selected:
Message 1: Warning tone followed by the message, “Warning!
An emergency condition exists and this fire door is about to
close; please remove any obstructions from its path and stand
clear.”
Message 2: Warning tone followed by the message, “Warning!
This fire door will close in 10 seconds... 5 seconds... the fire
door is now closing; please remove any obstructions from its
path and stand clear.”
The release device has an 4-position DIP Switch mounted on the
circuit board, and the switch at position #3 permits selection of
either message. In the “ON” position, Message 1 is activated; in
the “OFF” position, Message 2 is activated (Figure 12).
The voice board can drive up to two 70.7V speakers (Model
LM8SP) or speaker inputs to speaker strobes (Model
LMPSTR2475ADA). Maximum delivered power is 5 watts.
A potentiometer (VR1) is mounted on the board and rotation
counterclockwise increases the volume (clockwise to decrease
volume) (Figure 11).
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:
FIGURE 12
Delay Setting Switch Position
1 2
10 Seconds Off Off
20 Seconds Off On
30 Seconds On Off
60 Seconds On On
NOTE: Set all DIP switch options before applying power to the
system.
Wire to Speaker
Volume Control
CCW for Max
1 2 3 4
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.
Factory default setting of 10 seconds shown.