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5-8 975-0200-01-01
RS-485 Communication Cable with Two RJ-45s
Use the top connector of the two 8-pin RJ-45 jacks, as shown in
Figure 5-1, to connect to the RS-485 remote interface. Communication
cable with two RJ-45 shielded connectors (see Figure 5-3) connecting the
master unit to the slave unit. The cable length should be 9.84 feet (3 m) or
longer. The pinouts for the RJ-45 plug on the master unit are the same as
described in Table 5-7.
Figure 5-6
RS-485 Communication Cable with DB-9
DB-9 connector on PC
RJ-45 plug
Table 5-7
RJ-45 Plug on Slave Unit
Pin Name Description
1, 2 NC No connection
3 RXD+ Receive data Twisted
pair
4 RXD– Receive data
5 TXD+ Transmit data Twisted
pair
6 TXD– Transmit data
7 GND Ground
8 NC No connection