Radicom Research Inc RB4000 사용자 설명서

 
The pin definitions of DB9 used on the RB4000MB RS232 Serial Connector are as 
follows: 
 
1.  DCD:   Input, Carrier Detect 
2.  RXD:   Input, Received Data 
3.  TXD:  Output, Transmit data 
4.  DTR:   Output, Data Terminal ready 
5.  GND:  Ground 
6   DSR:  Input, Data Set Ready 
7.  RTS:  Output, Request to Send 
8.  CTS:  Input, Clear to Send 
9.  RI:   

Input, Ring Indicator 

 
 
 

 

 

 

 
The modules have an On Board LED to indicate the Bluetooth Connection Status. The 
LED will start blinking after power is applied (once every two seconds). The module is 
ready to establish a connection. Once a connection is established, the Acceptor Module 
LED will flash twice every 2 seconds and the Initiator Module LED will be ON 
continuously.  
 

Mode 

RB4000MB-SPP-A Initiator  RB4000MB SPP-B Acceptor 

Searching 

LED status 700ms on, 
700ms off 

LED flashing once every 2 
seconds 

Connect 

Always ON 

Flashes twice every 2 seconds 

 
The modules also have an I/O Pin to add the LED to your design. The RB4000-HM LED 
output is Pin 3 and the RB4000 LED output is Pin 35. 
 
 
 
 

 

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