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GV75WUserManual

 

TRACGV75WUM001

‐13‐

3.7. UARTInterface

Thereis one UARTinterface onGV75W.UART isused forconfiguration,firmware download,and

communicatingwithexternaldevicessuchasCANBusmoduleandRFIDreader. 

PleasenotetheUARTinterfacesareallRS232level.ForRS232level,validsignalsare3Vto15Vand‐

3Vto‐15V,andthe‐3Vto+3Visnotavalidlevel.3Vto15Vcorrespondswithlogic0ofTTLlevel,

while‐3Vto‐15Vcorrespondswithlogic1.

The examples of connections of UART with female DB‐9 and with external devices are shown as

follows.

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Figure7:TheConnectionofUARTwithFemaleDB‐9

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Figure8:TheConnectionofUARTwithExternalDevices 

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3.8.



USBInterface

Gv75WhasoneUSBinterfacewhichisusedforfirmware download and connects to the

GV75W_UART_USB_PWR_Convert_CABLE(optional).TheGV75W_UART_USB_PWR_Convert_CABLE

isusedwhendownloadingthefirmware.

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3.9. IndicatorLightDescription



Figure9:GV75WLED



LED DeviceStatus LEDStatus

Queclink GV75W User Manual

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