4
IMR01J08-E1
3. WIRING
Connector pin number and signal details
Pin No.
Signal name
Symbol
1 Signal
ground
SG
2
Send data/Receive data
T/R (A)
3
Send data/Receive data
T/R (B)
A connector and connector cable for connecting the input block is necessary to be prepared
by the customer.
Housing:
XHP-3 (J.S.T. Mfg. Co., Ltd. product)
Recommended cable size: AWG 30 to 22
Wiring method
Connection to the RS-485 port of the host computer (master)
SG
T/R (B)
T/R (A)
SG
T/R (B)
T/R (A)
RD (RXD)
：
Receive data
SD (TXD)
：
Send data
Host computer (Master)
RS-485
SG
T/R (B)
T/R (A)
31 max.
Paired wire
Send/Receive
transfer signal
Shielded twisted
pair wire
SA100L
(Slave)
SD (TXD) and RD (RXD): Negative logic
Communication
connector
SA100L
(Slave)
Communication
connector
* R: Termination resistors (Example: 120
Ω
1/2
W)
* R
* R
Communication connector
2
1
3
Front
The bottom of the instrument
To prevent electric shock or instrument failure, turn off the power before
connecting or disconnecting the instrument and peripheral equipment.
WARNING
!
