Pepper Computer RS485 사용자 설명서
SMART I/O User’s Manual
Chapter 4 Digital Modules
©1996 PEP Modular Computers GmbH
March 12, 1996
Page 4 - 37
4
Connection
+Vcc (24V)
Gnd (0V)
NO1
GNDEXT
COM1
VCCEXT
6.8 K
PC829
ULN2002
100
Ω
10 nF
Load
Input Circuit
24V DC
+
-