RS-232 Mini Tester

25 pin male and 25 pin female connectors with LED’s to indicate RS232 signals. A useful and inexpensive tool, get one for your toolbox today!

Features:
· Seven LEDs check status of TD, RD, RTS, CTS, DSR, CD, DTR.
· DB 25 Male/Female
· No external power required
· Dimensions: 6.5 x 5.5 x 1.6 cm

Interested in a RS232 to RS485 converter? We have them as well, click here to go there.

Serial (RS232) port interface pinout and signals

9 pin #	25 pin#	Acronym	Full name	Direction	Mean
3	2	TxD	Transmit Data	---->	Transmits bytes out of PC
2	3	RxD	Receive Data	<----	Receives bytes into PC
7	4	RTS	Request To Send	---->	RTS/CTS flow control
8	5	CTS	Clear To Send	<----	RTS/CTS flow control
6	6	DSR	Data Set Ready	<----	I'm ready to communicate
4	20	DTR	Data Terminal Ready	---->	I'm ready to communicate
1	8	DCD	Data Carrier Detect	<----	Modem connected to another
9	22	RI	Ring Indicator	<----	Telephone line ringing
5	7	SG	Signal Ground

Note: DCD is sometimes labeled CD


	The RS232 Mini Tester is only AU$14.95 plus Insured Registered postage of AU$6.95 Buy it now and pay securely using Paypal. Not in Australia? click here to find out cost of postage.




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