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3.2
Current loop output
20
rnA
data output is available on the RS-232C Port A.
The data is output simultaneously with the output from the
RS-232C Port A (pin 3) •
Pin 18 of Port A is current source, ahd Pin 25 is current
return (GROUND) .
Logic 1 indicates 20 mA, and logic 0 is
0 mA.
Load
0 "' 350 ohms
3.3
Parallel part
8 bit wide TTL level parallel input/output port is available.
Connectors
AMP 306584-1 (25 pins) and DB-25P or equivalent (cable
side)
Table 3.4 shows the pin assignment.
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