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3-4SectionWiring and Connections
29
One-to-N Host Link Cables Up to 32 SRM1s can be connected to the computer via the peripheral port or
RS-232C port.
IBM PC/AT or compatible computer
SRM1
SRM1
Link Adapter
3G2A9-AL004-E
1
2
3
4
5
6
RDB
–
SG
–
SDB
RDA
FG
–
SDA
7
8
9
Pin No.Signal
D-sub 9-pin
Make a straight RS-232C cable connection between the 3G2A9-AL004-E
Link Adapter the personal computer, and match each SD, RD, and SG.
NT-AL001
Connecting Cables
(Refer to page 26.)
RS-422 Adapter
CPM1-CIF11
Note 1. The maximum total length of the RS-422 cable is 500 meters.
2. Turn ON the termination resistance switches for only the Link Adapters or
RS-422 Adapters at both ends of the Host Link network.
3. Crimp-type terminals must be used for Link Adapter and RS-422 Adapter
terminal wiring. For details, refer to 3-4-1 General Precautions for Wiring.