125
Connecting to the Host’s RS-422A/485 Port Section 5-2
Connecting between NT31/NT31C Units
*2
Make the connection between pin numbers 9 and 10 at the NT31/NT31C at
the end of the RS-485 cable (marked * in the figure above) only.
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
422A/485 Cables on page 128.
Connecting an NT31/
NT31C and a Host
The relay terminal block is not included in this figure. Insert the relay terminal
block so as to achieve the wiring configuration shown below.
Wiring When Connecting a CS-series Serial Communications Board, CS/
CJ-series Serial Communications Unit, C-series C200HX/HG/HE(-Z)E
Communications Board, or CQM1H Serial Communications Board
Applicable Units:
∗
Next PT
Shielding wire
∗
RS-485
Host
1
14
13 25
1
1
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