24
2 INSTALLATION & CONNECTION
24
INSTALLATION & CONNECTION
Chapter
2
■SI/F connection
The 2-wire serial interface has connective ability for coupling a UNIPULSE printer, external
display, etc.
Connect from A11 and A12 of the external input/output connector.
The interface is nonpolarized and up to three external instruments may be connected.
A two-core parallel cable or a cabtyre cable (Wire with covering thickened for construction) may be
used for connection.
When a two-core parallel cable or a cabtyre cable is used, the transmitting distance is
approximately 30m. When a two-core shielded twisted pair cable is used, the transmitting distance
is approximately 300m.
Do not parallel it with AC lines and high-voltage lines. It may cause of malfunction.
Converter
Display
Printer
SI/F
A12
A11
←
Inside
Outside
→
F372A
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