IT-E190
User’s Manual
Copyright © Itech Electronics Co., Ltd.
6
1. Input terminal, for inputting current.
Pay attention to polarity during test. Reverse connection may cause
negative value.
Ⅳ
IT-E190 Function Introduction
(1). Introduction of Front Panel Terminals
Input Interface of Power Supply
External power supply may be available if power meter is provided. Power
supply is individually supplied in package. Power supply specification is as
follows:
Input voltage: 220VAC;
Output voltage range: DC5V-DC9V;
Output current: 1.2A (MAX);
Output polarity: In (Positive) External - (Negative).
DB9 Terminal
DB9 terminal is defined as follows:
Base pin number
Description
1
+12V
2
GND, grounding
3
-12V
①
