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Terminal Block Pin Assignment
Pin
Name
1
(N/A)
2
(N/A)
3
D1+
4
D1-
5
RS485+
6
RS485-
7
R1-C
8
R1-NO
9
R1-NC
10
(N/A)
11
12 Vin
12
GND
Relay Output
RL1-CTRL→High
RL1-CTRL→Low
Digit Input
D1+ and D1- are the positive and negative terminals of the external power
input.
D1 = High
D1 = Low
Copyright 2009 Unitech Electronics Co., Ltd. All rights reserved. Unitech is a registered trademark of Unitech Electronics Co., Ltd.
Description
(N/A)
(N/A)
Input Anode (+)
Input Cathode (-)
RS485, Positive
RS485, Negative
Common
Normal Open
Normal Close
(N/A)
DC IN 12V
GND
R1 (C & NO Linked)
R1 (C & NC Linked)
Digit input1 = High
Digit input1 = Low
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