Pepper Computer Modular Computers RS485 - Manual (Page 310)

SMART I/O User’s Manual
October 01, 1996 ©1996 PEP Modular Computers GmbH Page 6- 28
Chapter 6 Communications Modules
Connection
Input Circuit
+Vcc (24V)
Gnd (0V)
Pin 1
Pin 2
Pin 13
Pin 14
CLK+ CLK- D
ATA
-
D
ATA
+
RESET
-
DIR- EORC EOR1 EOR2 COM+ MA
TCH-
GND
Shift
SO
Si
Driver
Monoflop
Input
Switch
Clock
Serial
Data
Parallel
Data Photo
Receiver Photo
Transmitter
Encoder
Wheel Schmitt-
Trigger Parallel-Serial
Converter
SM-SSI