En: Installation Sheet; Product Description; Part Description - Interlogix PB501 Installation Sheet

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A: Line protection
B: 2-stacked protection
C: Line and 2-stacked protection

EN: Installation Sheet

Product description

The PB501/ PB511/ PB521 photoelectric beam sensors have
an infrared transmitter (Tx) and receiver (Rx). They are
designed to be "AND gated". An alarm is initiated only when
two stacked beams are simultaneously interrupted. If one
beam is interrupted (eg, by an insect or a leaf) it does not
initiate an alarm. Four beam frequency channels are available
to prevent cross talk when using multiple units.

Part description

Figure 1: The product is supplied with the following items.
Please check that they are all included.
1 Terminals
2 Beam channel
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3 Lens
4 View finder
5 Operation LED
6 Horizontal adjustment
7 Vertical adjustment screw
8 Cover
9 Mounting plate
10 Alarm LED
11 Attenuation LED
12 Response time adjustment
13 Monitor jack
14 Tapping screw (PB50-PA)
15 Pole-mounting plate (PB50-PA)
16 Pole bracket (PB50-PA)
17 Attenuation sheet
P/N 1077838 • REV D • ISS 19MAR19