Aml Guardian Vehicle-Mounted Computer Manual de usuario descargar pdf (Pagina 8)

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COM Ports on Pigtail Cable

 COM1(RS232 DB9 male)-----Standard configuration is RS232. Debug port(hardware signal:

Pin 2---TXD, Pin 3---RXD, Pin 5---GND) can be for service port.

 COM2(RS422/RS485 DB 9male)----------Standard is RS422(hardware signal: Pin 1---TX+, Pin 2---

TX-, Pin 3---RX+, Pin 4---RX-, Pin 5---GND), optional is RS485(hardware signal: Pin 1---RX485+,

Pin 2---RX485-, Pin 5---GND).

 422 interface

o [DllImport("Wrapper.dll")]

public static extern int Zed422();

Set com2 422 mode. In this mode com2 is set 422 mode. COM2 can read and

write.

 485 interface

//485 422

o [DllImport("Wrapper.dll")]

public static extern bool ZedInit();

This function can only load once.

o [DllImport("Wrapper.dll")]

public static extern int Zed485RX();

Set com2 485 Rx mode. In this mode com2 can only read.

o [DllImport("Wrapper.dll")]

public static extern int Zed485STX();

Set com2 485 TX mode. In this mode com2 can only write.

 COM3 (RS232 DB9 male)-----Standard is service port(hardware signal: Pin 2---TXD, Pin 3---

RXD, Pin 5---GND, Pin 6---5V, Pin 9---GND).

 COM4(RS232 DB9 male)-----Standard is service port(hardware signal: Pin 2---TXD, Pin 3---

RXD, Pin 5---GND).

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Aml Guardian Vehicle-Mounted Computer Manual de usuario Pagina 8