Panasonic KX-TDA50 Installation Manual page 83

Connection Diagram for External Sensors and External Relays
Power to the external sensor is provided from the DPH4 card and must be grounded through the DPH4 card
as indicated in the diagram below. A pair of "sensor" and "common" lines must be connected to the DPH4 card
for each external sensor. The PBX detects input from the sensor when the signal is under 100 W.
sensor
Sensor 4
common
sensor
Sensor 3
common
sensor
Sensor 2
common
sensor
Sensor 1
common
Document Version 2010-11
5 V
5 V
33 Ω
2.2K
8
33 Ω
47K
7
6
5
4
3
2
1
10
9
8
Relay 4
7
6
Relay 3
5
4
Relay 2
3
2
Relay 1
1
10K Ω
5 V 5 V
10K Ω
33 Ω
2.2K
33 Ω
47K
2.5.1 DPH4 Card (KX-TDA5161)
5 V
5 V
10K Ω
33 Ω
2.2K
5 V
33 Ω
33 Ω
47K
33 Ω
Installation Manual
5 V
10K Ω
2.2K
47K
83