Receiver - Normal Mode (cover on)
Red
LED
Yellow
LED
Green
LED
Terminals
4 and 5
Terminals
6 and 7
Condition
Solution
Off
Off
On
Open
Closed
The receiver is
initializing. It
stabilizes in 60 sec to
120 sec.
Off
Off
On
Open
Open
The receiver is
initializing. The
access door is
missing or loose.
Replace the
access door.
Off
Off
Flashing Open
Closed
Normal
Off
Off
Flashing Open
Open
The access door is
missing or loose.
Replace the
access door.
Off
On
On
Open
Open
Trouble. Beam is
blocked or
misaligned.
Clear the beam
path or realign
the receiver.
Off
On
Flashing Open
Open
Trouble. If the
reference voltage is
less than ~2 VDC,
dust on the lens
reduced the signal
strength or vibration
misaligned the
receiver.
Clean the
transmitter and
receiver covers.
If the reference
voltage does not
return to
3.8 VDC to
4.2 VDC, realign
the receiver and
press the Setup
switch.
Off
On
Flashing Open
Open
If the reference
voltage is greater
than ~4.2 VDC, the
beam strength
increased because an
initial beam
misaligned or a partial
blockage was
removed at setup.
Perform a fine-
tune alignment
of the receiver
and use the
Setup button.
On
Off
Flashing Closed
Closed
Alarm
Determine the
cause of the
alarm and reset
the receiver.
7.3
Long-range Beam Smoke Detectors
Notices | en
23
Bosch Security Systems, Inc.
Installation Instructions
2014.01 | 06 | F.01U.068.899