Panasonic KX-TDA50 Connection Diagram for External Sensors and External Relays, 100 Ω

2.5 Information about the Other Cards

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 Hybrid IP-PBX detects input from the sensor when the signal is under

100Ω.

	sensor	8
Sensor 4	common
		7
	sensor
		6
Sensor 3	common
		5
	sensor
		4
Sensor 2	common
		3
	sensor
		2
Sensor 1	common
		1

5 V			5 V
	33 Ω		10K Ω
		2.2K
			5 V			5 V
	33 Ω			33 Ω		10K Ω
		47K			2.2K
						5 V		5 V
				33 Ω		33 Ω		10K Ω
							2.2K
					47K			5 V		5 V
						33 Ω			33 Ω	10K Ω
							47K			2.2K
									33 Ω	47K

10

9

8

7

6

5

4

3

2

1

Relay 4

Relay 3

Relay 2

Relay 1

Installation Manual

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