Black Box IC476A-F-R2 - Manual (Page 22)

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APPENDIX A: RS-232C Pin Configurations
STANDARD “DTE” SETTING DIRECTION DIRECTION
From Converter Data Term. Ready (DTR) - 20
1- (FG) Frame Ground
2- (TD) Transmit Data
3- RD) Receive Data
4- (RTS) Request to Send
5- (CTS) Clear to Send
6- (DSR) Data Set Ready
7- (SG) Signal Ground
8- (DCD) Data Carrier Detect
From Converter
To Converter
From Converter
To Converter
To Converter
To Converter
DIRECTION DIRECTION STANDARD “DCE” SETTING
To Converter
FromConverter
To Converter
FromConverter
FromConverter
From Converter
1- (FG) Frame Ground
2- (TD) Transmit Data
3- RD) Receive Data
4- (RTS) Request to Send
5- (CTS) Clear to Send
6- (DSR) Data Set Ready
7- (SG) Signal Ground
8- (DCD) Data Carrier Detect
Data Term. Ready (DTR) - 20 To Converter
Appendix A. RS-232C
Pin Configurations