External Sensor
Power to the external sensor is provided from the
DOORPHONE card and must be grounded through the
DOORPHONE card as indicated in the diagram below. A pair of "sensor" and "common" lines are connected
to the DOORPHONE card for each external sensor. The PBX detects input from the sensor when the signal
is under 100 W.
Connection Diagram
External Sensor
sensor
common
I/O
DOORPHONE
PBX
+3.3V
+3.3V
10K
33
33
4.7K
4.7K
Door Opener
Current Limit: 24 V DC/30 V AC, 1 A maximum
Connecting to the DOORPHONE Card
When connecting a doorphone, door opener, and/or external sensor to the
DOORPHONE card, use copper
wire with a diameter from 0.42 mm to 1.12 mm. Follow the procedure below to connect a doorphone, door
opener, and/or external sensor to the DOORPHONE card.
1. Strip off the insulation of the wire about 10 mm from the end.
2. Use a screwdriver to press on the orange tab at the bottom of the terminal block, and insert the wire into
the upper hole.
3. Check from side to ensure that no bare copper wire is exposed.
10 mm
Copper Wire
DOORPHONE Card
(ø 0.42 mm to 1.12 mm)
Installation Manual 177
4.7.1 DOORPHONE Card (KX-NS0161)
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