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Pepper Computer RS232 User Manual

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SMART I/O User’s Manual
March 12, 1996
©1996 PEP Modular Computers GmbH
Page 6 - 8
Chapter 6  Communications Modules
Pin Nr. Signal
Description
Pin Nr. Signal
Description
1
TxD
Transmit Signal
2
N/C
No Connection
3
RxD
Receive Signal
4
N/C
No Connection
5
DTR
Data Terminal Ready
6
N/C
No Connection
7
CTS
Clear to Send
8
N/C
No Connection
9
N/C
No Connection
10
N/C
No Connection
11
N/C
No Connection
12
N/C
No Connection
13
GND
Ground
14
GND
Ground
Pin 1
Pin 2
Pin 13
Pin 14
6.1.7 Pinouts
Screw Terminal Pinouts
The following shows the pinout/signal relationship for the SM-RS232 when
connected to a particular screw terminal block.
6.1.6 Configuration
Jumper J1 - EEPROM Protection
Jumper S e t t i n g s
Description
J1
set
EEPROM is not hardware write protected
open
EEPROM is hardware write protected