Chamberlain SL 1000-B3 - Manual (Page 14)

Rev E Doc 01-20201 11 of 33
BIPARTING SWING GATES
Figure 7. Biparting Swing Gates Photo-Sensor Layout.
WARNING
Buy only UL-approved photo-sensors made for use with vehicular gate
operators or system. Otherwise, safe gate operation may be compromised.
IMPORTANT NOTE: The installation shown in Figure 7 above is a suggested layout using emitters and
receivers. Any UL-approved photo-sensors are acceptable, but they must cover the entire area of
gate travel to be effective.
Install photo-sensors in three Coverage Areas as shown in Figure 7.
1. Coverage Area A - Inside-Open Coverage:
Install two photo-sensors: Inside the fence line, from the gate posts to the gate fully open positions.
2. Coverage Area B - Inside-Closed Coverage:
Install one photo-sensor: Inside the fince line, from the gate open position across the full length of
both gates.
3. Coverage Area C - Outside-Closed Coverage:
Install one photo-sensor: Outside the fence line, from gate post to gate post.
4. Connect the photo-sensors to whichever unit is most convenient. For wiring instructions, see
Section C, Connecting Input Wiring, below.