Product Manual

XBee/XBee‐PRO™OEMRFModules‐802.15.4‐v1.xAx[2007.05.031]
©2007MaxStream,Inc. 65
AppendixB:DevelopmentGuide
RS-232 Pin Signals
FigureB‐03. PinsusedonthefemaleRS‐232(DB‐9)SerialConnector
*Functionslistedintheimplementationcolumnmaynotbeavailableatthetimeofrelease.
Tab leB‐02. PinAssignmentsandImplementations
DB-9 Pin RS-232 Name Description Implementation
1 DCD Data-Carrier-Detect Connected to DSR (pin6)
2 RXD Receive Data
Serial data exiting the module assembly
(to host)
3 TXD Transmit Data
Serial data entering into the module assembly
(from host)
4 DTR Data-Terminal-Ready Can enable Power-down on the module assembly
5 GND Ground Signal Ground
6 DSR Data-Set-Ready Connected to DCD (pin1)
7 RTS
/ CMD
Request-to-Send /
Command Mode
Enables RTS
flow control or
Command Mode
8 CTS
Clear-to-Send Provides CTS flow control
9 RI Ring Indicator
Optional power input that is connected internally to
the positive lead of the front power connector