* LED Function Mode Selector -
This selector consists of a 4-pin connector and a jumper which can be inserted between 2
pins, enabling 3 operational modes:
a. OFF - Link pins 1 and 2 with jumper. -
This mode can be used to disable the ALARM/WALK test LED and LOCATOR LED
after all testing is completed in order to prevent unauthorised persons from tracing the
protection area.
b. ZONE - Link pins 2 and 3 with jumper. -
This mode is used for locating the beam. The locator LED lights continuously to enable
convenient observation of the detection zones.
c. ALARM - Link pins 3 and 4 with jumper. -
This mode is used for ALARM/WALK testing. The ALARM/WALK indicator lights up
whenever movement is detected.
NOTE: Factory setting in for the ALARM mode.
* Triggering Mode Selector
The detector can be selected for single-shot triggering or pulse-count triggering. This
selector consists of a 3-pin connector and a jumper which can be inserted between 2 pins,
enabling the 2 operational modes:
a. Single Shot - Link pins 1 and 2 with jumper. -
Single-shot trigger mode makes the detector go immediately into the alarm condition
whenever an intruder moves in or out of the detection zone. The detection circuit
requires 1 pulse to activate it. It is recommended to use single-shot operation for narrow
corridor protection.
b. Pulse Count - Link pins 2 and 3 with jumper.
Pulse-count trigger mode further improves immunity against false alarms. The circuit
first senses an alarm (pulse 1) and then goes into alarm stand-by mode for 30 seconds. If
during the 30 second stand-by period a second alarm event occurs (pulse 2), the detector
immediately goes into alarm mode and the stand-by period will be extended for another
30 seconds. If there is no second alarm pulse during the 30 second stand-by mode, the
detector returns to normal condition.
NOTE: Factory setting for pulse-count operation.
* Tamper Switch
Protects the unit from tampering. The contact of the switch is
normally closed when the cover is closed; and is connected to
the "TAMPER" terminals of the terminal block.
* Reed Relay
This is a silent relay with its contact connected to the
"ALARM" terminals. The contact is normally closed (fail
safe) and will open when an intruder is detected or during
power loss.
* Terminal Block
For connecting wires to the sensor.
