Toshiba RS-485 Operation Manual page 8

7
Cable connection
Host
Computer
1.Transmit positive line (TXA)
2.Transmit negative line (TXB)
3.Receive positive line (RXA)
4.Receive negative line (RXB)
5.Signal line ground (SC)
6.Shield ground (FG)
More than 5cm
Leave a space more
than 5cm on left and
bottom side of option
unit for connecting the
communication cable.
VF-S7
1 2 3 4 5 6
1 2 3 4 5 6
SW
R R T T S S
X X X X G H
A B A B I
INVERTER 1
RS485
OPTION UNIT
INVERTER 2
More than 5cm
VF-S7
7
1.RXA
2.RXB
3.TXA
4.TXB
5.SG
6.SHIELD
E
L
D
Communication
connector CN1
Opening for communication connector
To open the cover of the communication
connector, slide it in the direction
indicated with a triangle mark.
Another
RS-485
Option Unit