AG Electronica XBee 2 Series Manual page 71

www.agelectronica.com
XBee Series 2 ZigBee OEM RF Modules v1.x2x [2007.07.019]
RS-232 Pin Signals
www.agelectronica.com
Figure B‐03. Pins used on the female RS‐232 (DB‐9) Serial Connector
Table D‐02. Pin Assignments and Implementations
DB-9 Pin RS-232 Name
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS / CMD
8 CTS
9 RI
* Functions listed in the implementation column may not be available at the time of release.
© 2007 Digi International, Inc.
Description
Data-Carrier-Detect
Serial data exiting the module assembly
Receive Data
Serial data entering into the module assembly
Transmit Data
Data-Terminal-Ready Can enable Power-Down on the module assembly
Ground Signal
Data-Set-Ready
Request-to-Send /
Command Mode
Clear-to-Send
Optional power input that is connected internally to
Ring Indicator
the positive lead of the front power connector
www.agelectronica.com
Development Guide
Implementation*
Connected to DSR (pin6)
(to host)
(from host)
Ground
Connected to DCD (pin1)
Provides RTS flow control or
enables Command Mode
Provides CTS flow control
70
www.agelectronica.com