One To N Configuration - Toshiba V Series User Manual

One to N configuration

• On the CPU, removable terminal block is provided for cable connection.
• Connect termination resistor 1/2W - 220 Ω between RXA and RXB, and between TXA
and TXB at the both terminal stations.
• Use shielded twisted-pair cable for data communication suited to RS-485 standard.
The cable shield should be connected to single-point ground.
Supplementary
Recommended cable for RS485:
CPEV-CU 1.2mm Φ (Showa Electric Wire & Cable) or an equivalent product
6F8C0836
RS-232C/RS485
converter
(ADP-6237B)
TXA
TXB
RXA
TERM
RXB
SG
Termination
cable length : max.1km
resistors
1/2W - 220Ω
shielded twisted-pair
cable
(Total)
4.8 Wiring of the computer link
(Relaying
terminal
block)
S2
RXA
RXB
TXA
TXB
SG
S2
RXA
RXB
TXA
TXB
SG
Termination
resistors
1/2W - 220Ω
151
4