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7.1
Photobeam 5000
Installing multiple sets (stacking) | en
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Installing multiple sets (stacking)
This section describes the positioning of photobeam sets as well as several examples of how
they are stacked. Depending on your installation environment, you can install a single or up to
a four-level stack for maximum coverage.
The term ”set“ describes one transmitter and one receiver pairing. The term “crosstalk” is a
type of interference.
Interference
Photobeam interference or ”crosstalk” in a single or multiple stack occurs when more than
one transmitter signal is received by one receiver and interferes with normal operation.
Each photobeam set can be programmed to a specific group; Group A or Group B in order to
reduce crosstalk interference in a single stack environment. In a multi-stack environment, you
can program each photobeam set to a specific group and channel.
Installation recommendations
When installing multiple sets, it is recommended to install them in a similar fashion as
depicted in the illustration below, whereby each transmitter (T) is emitting it’s beam in an
opposing direction from the other transmitter, and being received by its corresponding
receiver (R).
R
R
R
R
T
T
T T
Notice!
Photobeam group/channel dip switch selections and synchro wires are not required when
installing a photobeam set (one transmitter and one receiver).
Group selection
The Group option allows you to install multiple sets of photobeams, covering a larger
perimeter area, while reducing the chances of crosstalk and interference. The options to
choose from include Group A or Group B.
Group selection is accomplished through setting Dip Switch 1 to either the ON, or OFF
position on both the transmitter and receiver. Set each transmitter/receiver set to the same
group for proper functionality. Refer to the graphic below for dip switch locations on both the
transmitter and receiver.
Bosch Security Systems, Inc.
Installation and Operation Guide
2016.02 | 03 | F.01U.303.478
Available from A1 Security Cameras
www.a1securitycameras.com email: [email protected]
