Eia-232-d interconnections – Motorola MVME197LE User Manual
Page 73
EIA-232-D Interconnections
MVME197LE/D2
A-5
A
Figure A-1. Middle-of-the-Road EIA-232-D Configuration
TXD
RXD
NC
RTS
6850
TXC
DCD
CTS
3
OPTIONAL
HARDWARE
TRANSPARENT
MODE
RXC
LS08
RXD
6850
RTS
TXD
LS08
RXD
39k
Ω
470
Ω
-12V
+12V
TXD
20
1
7
2
5
3
4
6
DCD
RTS
RXD
CTS
CTS
TXC
RXC
DCD
39k
Ω
39k
Ω
470
Ω
-12V
+12V
470
Ω
470
Ω
470
Ω
470
Ω
+12V
1
2
CTS
SIG GND
DTR
DSR
LOGIC
GND
CHASSIS GND
6
8
7
5
SIG GND
NC
TXD
CONNECTOR
TO
TERMINAL
-12V
+12V
-12V
39k
Ω
CONNECTOR
TO
MODEM
OR
HOST
SYSTEM
DCD
MODULE
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