11. At the end of the setup, the receiver’s green LED flashes and the voltage decreases to a
range from 3.8 VDC to 4.2 VDC. Use this voltage as a reference when you compare later
readings to determine the need for cleaning. If the voltage is not within this range, press
the Setup button.
12. After setup, remove the test cable.
13. Reconnect the D306 or D307 connector if used.
14. Replace and secure the access door.
Troubleshooting
Transmitter
LED
Condition
Solution
Flashing
Normal
Off
1. There is no power at the transmitter.
2. The Aim Mode button not pressed.
3. The transmitter is faulty.
1. Restore power to Terminals 1 and 2.
2. Press the Aim Mode button.
3. Replace the transmitter.
Receiver - Aim Mode (cover off)
Red
LED
Yellow
LED
Green
LED
Terminals
4 and 5
Terminals
6 and 7
Condition
Solution
On
On
Flashing Open
Open
The alignment is
acceptable.
On
On
On
Open
Open
The beam is
blocked or the
receiver is
misaligned.
Clear the beam
path or realign
the receiver.
On
Flashing Flashing Open
Open
The sensitivity
setting is invalid.
Set the receiver
to the proper
setting.
On
Off
Off
Open
Open
There is no power.
Check for
power at
Terminals 8 and
9.
7
7.1
7.2
22
en | Notices
Long-range Beam Smoke Detectors
2014.01 | 06 | F.01U.068.899
Installation Instructions
Bosch Security Systems, Inc.
