Murata Electronics North America DNT500P Manual Do Utilizador

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Amber DCD LED D4 illuminates on a remote to indicate it is registered with the base 
station and can participate in RF communications. LED D4 illuminates on the base sta-
tion when one or more remotes are registered to it. Green Activity LED D1 illuminates 
on a remote when transmitting data, and illuminates on a base when receiving data. Red 
Receive LED D3 illuminates when sending received data through the serial port to the 
PC. Green Transmit LED D2 illuminates when the PC sends data through the serial port 
to be transmitted. 
 
Jumper pin set J14 is provided to allow measurement of the DNT500P current. For nor-
mal operation J14 has a shorting plug installed. Jumper pin set J17 allows the DNT500P 
CFG pin to be grounded by installing a shorting plug. This places the DNT500P in proto-
col mode. 
 

 

 
Figure 5.6.2 shows the connectors to the right of the DNT500P mounting socket. Jumper 
pin set J9 allow the DNT500P reset line to be routed to JTAG interface connector J10. 
J18 allows the DNT500P reset line to be grounded. Note that the JTAG operation is usu-
ally limited to factory testing. For normal operation pin sets J9 and J18 should not have a 
shorting block installed. Jumper pin sets J12 and J13 normally have shorting plugs in-
stalled as shown in Figure 5.6.2, which connects the DNT500P UART0_TXD and 
UART0_RXD pins to the respective serial data lines on the evaluation board. It is possi-
ble to connect directly to UART0_TXD and UART0_RXD by moving the jumpers over. 
In this case, J11-1 is the input for transmitted data and J11-2 is the output for received 
data. Note this a 3 V logic interface. Placing a shorting plug on jumper pin set J6 allows