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_ _ _ _ LEAR
SIEGLER, INC.
DATA
PRODUCTS DIVISION
CURRENT LOOP
20mA
CURRENT LOOP
TRANSM ITTER
23
SEND CL+
25
SEND CL-
20mA
CURRENT LOOP
RECEIVER
17
RECEIVE CL ....
RS-422
24
RECEIVE CL-
23
RS-422 SEND ....
RS-422 TRANSMITTER
AS-422 RECEIVER
25
17
RS-422 SEND -
RS-422 RECEIVE . . . .
24
AS-422 RECEIVE -
Figure 2-5. Optional Current Loop and RS-422 Interface Logic
2-7
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