IBM 5150

Selecting The Interface Format
The Voltage or Current loop interface is selected by plugging the
programmed shunt module, with the locator dot up
or down. See the
figure below for the two configurations.
D
o
D
D
o
ASYNCHRONOUS
C OMMU N ICATI 0 NS 1....I...I...L..J..I....L...L.J~t..L.L.JL...L...L..L..L.J.J..L.L~II-'-I- ..................
ADAPTER
CURRENT LOOP
VOLTAGE INTERFACE
INTERFACE
DOT UP
DOT DOWN
Figure 23. SELECTING THE INTERFACE FORMAT
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