RoyalTek rdr-3200 用户手册

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RDR-3200 User Manual 
RXD1 
This is the main receiver channel and is used to receive software commands to the 
board from SIRFdemo software or from user written software. 
RXD2 
This is the auxiliary receiving channel communicated with car pc with can bus  
TXD1 
This is the main transmitting channel and is used to output navigation and 
measurement data to SiRFdemo or user written software. 
TXD2 
This is the auxiliary transmitting channel communicated with car pc with can bus  
ODOMETER 
This pin provides for connecting to odometer. 
RTC (Backup voltage)  
This is the battery backup input that powers the SRAM and RTC when main power is 
removed. Typical current draw is 10uA. 
The supply voltage should be between 2.5V and 3.6V. 
BACK (Reverse) 
This pin provides for connecting to backward signal. 
Reset 
This pin provides an active-low reset input to the board. It causes the board to reset 
and start searching for satellites. If not utilized, it may be left open. 
 
 
 
5.2 RF connector type: SMA R/A PCB JACK (J1) 
RF IN: 
RoyalTek Confidential
 
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