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2. CONNECTING
IMSRM04-E8
15
RS-485
Pin number and signal name
Pin No. Mark
Name
Signal Direction
Operation panel Host computer
2
T/R(A)
Send data/Receive data
14
T/R(B)
Send data/Receive data
8
SG
Ground for signal
Contents of communication cable wiring
RS-232C
Pin number and signal name
Pin No. Mark
Name
Signal Direction
Operation panel Host computer
2
SD (TXD)
Send data
3
RD (RXD)
Receive data
7
SG (GND)
Ground for signal
4
RS (RTS)
Request to send
5
CS (CTS)
Clear to send
Contents of communication cable wiring
2
3
7
Host computer
Shield wire
(Maximum connections: 1 unit)
SD (TXD)
RD (RXD)
SG (GND)
RS (RTS)
CS (CTS)
SD (TXD)
RD (RXD)
SG (GND)
RS (RTS)
CS (CTS)
4
5
*
*
*Short RS and CS within connector
2
14
8
Shielded twisted
pair wire
(Maximum connections: 16 units)
TXD and RXD : negative logic.
TXR/RXD
TXR/RXD
SG
T/R (A)
T/R (B)
SG
Paired wire
Host computer
Operation panel
Operation panel
RS-232C