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RS-232↔RS-422 INTERFACE CONVERTERS
Set as DTE
Dir. Signal Name (Abbrev.) Pin Pin Signal Name (Abbrev.) Dir.
Set as DCE
Dir. Signal Name (Abbrev.) Pin Pin Signal Name (Abbrev.) Dir.
OUT Data Term. Ready (DTR) – 20
1 – Frame Ground (FGND) N/A
2 – Transmit Data (TD) OUT
3 – Receive Data (RD) IN
4 – Request to Send (RTS) OUT
5 – Clear to Send (CTS) IN
6 – Data Set Ready (DSR) IN
7 – Signal Ground (SGND) N/A
8 – Carrier Detect (CD) IN
IN Data Term. Ready (DTR) – 20
1 – Frame Ground (FGND) N/A
2 – Transmit Data (TD) IN
3 – Receive Data (RD) OUT
4 – Request to Send (RTS) IN
5 – Clear to Send (CTS) OUT
6 – Data Set Ready (DSR) OUT
7 – Signal Ground (SGND) N/A
8 – Carrier Detect (CD) OUT
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