DC Power
【
DC-10/DC-20
】
8. Appendix
58
8-1-2
．
How to connect
RS232C communication
For DC, RXD has 2 pins and TXD has 3 pins. Connect to the HOST computer with a crossing cable.
The cable connecting between HOST and DC shall be 10 m or less at the longest in length.
Figure 8-3: Connection of DC in RS232C communication
RS485 communication
The RS485 communication of DC uses a two-wire system.
For establishment of RS485 communications, an address needs to be allocated to each DC to connect.
(See the section about the NET Address setting.)
The DC of the final end to connect needs the TERMINATION setting. (See the section about the
TERMINATION setting.)
HOST
RXD‐
RXD+
GND
DC
8pin TXD-/RXD-
7pin TXD+/RXD+
5pin GND
TXD‐
TXD+
DC
DC
・
・
・
・
・
(Setting of TERMINATION)
The twisted pair type is
recommended.
8pin TXD-/RXD-
7pin TXD+/RXD+
5pin GND
8pin TXD-/RXD-
7pin TXD+/RXD+
5pin GND
Figure 8-4: Connection in RS485 communication
HOST
DC
TXD
RXD
GND
3pin TXD
2pin RXD
5pin GND
～10m(MAX)
Use a crossing cable.
Summary of Contents for DC-10
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