ICP DAS USA ISO-P32S32W, Quick Start Manual, Page: 5 / 8

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Wiring Note:
To prevent the board damaged forever by overload, the
GND pins (CON2: pin 1/ 18/ 19/ 20, CON2: pin 1/ 18/ 19/
20) all must be connected with GND of External Power
.
O.C Output Type & Notice
High Driving Channel:
Open collector N-channel Power FET (BPS75N). Max. Sink current (NPN) is 500mA for
each channel. DO_0~3 & DO_16~19.
Low Driving Channel:
Open collector NPN/PNP Transistor. Max. Sink Current is 100mA for Each Channel
DO_4~15 & DO_20~31.
(Recommend: It is necessary to connect a diode in the output end as means of
preventing damage from the counter emf. If your External Device is inductive Load,
Ex. Relay…)