• TM201 (CN411): Dry contact terminal
When a power supply is unnecessary at the input device you want to connect, use the Dry contact
terminal TM201 (CN411).
Connection example 1: When the switch is connected
K1
K2
K1
K2
CH1 CH2
TM201
*
EXTERNAL INPUT
(RED)
CN412
(WHITE)
CN411
CN201
PCB PCB
*: Short circuit detection resistance (R
ON
): ≤ 500 Ω
Open circuit detection resistance (R
OFF
): ≥ 100 kΩ
A twisted pair cable 22 AWG (0.33 mm
2
) should be used. (Maximum cable length:
82 ft
[25 m])
Connection example 2: When the electricity meter is connected
Electricity meter
K1
K2
K1
K2
CH1 CH2
TM201
EXTERNAL INPUT
(RED)
CN412
(WHITE)
CN411
CN201
PCB PCB
Connect the electricity meter to CH1. In this case, the use of CH2 is prohibited.
4-1. Touch panel controller - (08-58) - 4. Controller
EXTERNAL INPUT
AND OUTPUT
EXTERNAL INPUT
AND OUTPUT
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