Chamberlain SW 2000-B3 Manual Do Utilizador

Rev E

Doc 01-20201

11 of 33

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.