3. Cabling
3-81
TI 33Q01J10-01E
RS-422/RS-485 Communication Module ACM12
RDY
RCV
SND
TX+
TX-
RX+
RX-
SG
FG
TW1
RDY
RCV
SND
TX+
TX-
RX+
RX-
SG
FG
TW1
RDY
RCV
SND
TW1
TX+
TX-
RX+
RX-
SG
FG
RDY
RCV
SND
TW1
TX+
TX-
RX\+
RX-
SG
FG
F030722.ai
AMN33
Figure ACM12 Signal Cable Connection
Table RS-422/RS-485 Interface Terminal Positions
Terminal Code
Signal Name
Description
TX+
Send Data
Transmission data (in-phase signals)
TX-
Send Data
Transmission data (phase-reversal signals)
RX+
Receive Data
Receiving data (in-phase signals)
RX-
Receive Data
Receiving data (phase-reversal signals)
SG
Signal Ground
Signal grounding
FG
Frame Ground Protective grounding
May 18, 2007-00