Friday, February 12, 2010

Pin Description of DB-9

Serial Pin out (D-9 Connector)
Serial Port D-Type 9 pin connector which
is male on the back of the GSM modem,
thus you will require a female connector
on your device. Below is a table of pin
connections for the 9 pin D-Type
connector.
Pin No. Abbreviation Full Name
Pin 3 TD Transmit Data
Pin 2 RD Receive Data
Pin 7 RTS Request To Send
Pin 8 CTS Clear To Send
Pin 6 DSR Data Set Ready
Pin 5 SG Signal Ground
Pin 1 CD Carrier Detect
Pin 4 DTR Data Terminal Ready
Pin 9 RI Ring Indicator

No comments:

Post a Comment