2 The possible interfaces for the Asynchronous
Communications Adapter are the current-loop
and RS232-C. Arrange the pluggable module
for the interface that suits your application, as
shown in the figure below.
Note: The pluggable module may have a
dust cover. Simply lift the cover to remove.
Retainer
Screw
Slot
Top
Front
Option
Retaining
Bracket
Pluggable
25·Pin
Module
,
______
Connector
0
0
•
0
D
0 0
D
0 0
D
0
0
D
0 0
P
0 0
D
0
D
0
0
(
•
Module
Position
for
Module
Position
for
Current·Loop
RS232-C
Interface
Interface
January
1984
Asynchronous 3
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