Delta AS Series Operation Manual page 189

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USB port





Ethernet port

Pin
1
VBUS (4.4–5.25 V)
2
3
4
5
Refer to Appendix A : Installing a USB Driver, if it is the first time for AS Series to use USB port to
communicate.
Time to use USB port: uploading/downloading PLC programs, monitoring during calibration and
upgrading firmware.
NOT suggested to use USB port: applications that require a long and un-interruptible
communication.
What to do when a communication failure occurs: unplug any communication connector from the
USB port and then plug the connector back. After that reconnect and try communication again.
Pin
Signal
1
TX+
2
TX-
3
RX+
4
--
5
--
6
RX-
7
--
8
--
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Function
D−
D+
Ground
Ground
Description
Transmitting data (positive pole)
Transmitting data (negative pole)
Receiving data (positive pole)
N/C
N/C
Receiving data (negative pole)
N/C
N/C