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Differential input/output wiring
The differential input/output has receivers and transceivers that satisfy the requirements of the TIA/EIA-422-B and TIA/EIA-
485-A standards.
When an external device has a common terminal, connecting the common terminal is recommended because a potential
difference between the common of external device and the common of module can cause the module to fail or malfunction.
There is a common terminal for input terminals and output terminals at intervals of eight points and a common terminal for I/O
shared terminals at intervals of one point.
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7 INSTALLATION AND WIRING
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7.5 External Wiring
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Troubleshooting
