RS-449 (EIA-449) Secondary pinout

serial interface

9 pin D-SUB male connector
at the computer

Pin	Name	RS232	V.24	Description
1		n/a	101	Shield
2	SSR	SRR	122	Secondary Receiver Ready
3	SSD	SSD	118	Secondary Send Data
4	SRD	SRD	119	Secondary Receive Data
5	SG	SG	102	Signal Ground
6	RC	RC	102b	Receive Common
7	SRS	SRS	120	Secondary Request To Send
8	SCS	SCS	121	Secondary Clear To Send
9	SC	SC	102a	Send Common

Note: Direction is DTE (Computer) relative DCE (Modem).
Note: RS232 column is RS232 circuit name.
Note: V.24 column is ITU-TSS V.24 circuit name.

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Pinouts.ru > RS-232 and other serial ports and interfaces pinouts listing > Pinout of RS-449 (EIA-449) Secondary and layout of 9 pin D-SUB male connector	Document status:	unknown
Source(s) of this and additional information: RS449 Page at Connectivity Knowledge Platform (Made IT), from Hardware Book	0 reports
Last updated at Sat Jun 25 2005. Submit additions or corrections for this document.	Is this document correct or incorrect? What is your opinion?

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