2-3. Block Diagram
2-4. Serial Connection
The TRP-C08D has one DB-9 male connector and one 4-PIN RS422/485 connector. The serial
port is configured as a DTE (data terminal equipment) device. All PC COM ports are DTE ports. A
null modem cable is required to make a connection between the PC COM port and the TRP-C08D
serial port.
2-5. USB Connection
The TRP-C08D has a USB B-Type connector which is fully compliant with USB 2.0, the full rate
speed up to 256Kbps.
*Please using the USB 2.0 cable ensures the TRP-C08D working fine.
2-6. RS485 Wiring
The RS-485 mode supports the Transmit and Receive channels using 2-wire half-duplex operation.