Trycom Technology TRP-C08X User Manual page 4

2-3. Serial Connection
The TRP-C08X has four DB-9 male connector and four 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-C08X
serial port.
2-4. RS232 and RS422/485 Select by DIP Switch
There are 4 DIP switch allows the TRP-C34H adjust to RS232 or RS422/485 Inside.
2-5. USB Connection
The TRP-C08X has a USB B-Type connector which is fully compliant with USB 2.0, the full rate
speed up to 256Kbps.
*Please use the USB 2.0 cables ensure the TRP-C08X working fine!
2-6. RS485 Wiring
The RS-485 mode supports the Transmit and Receive channels using 2-wire half-duplex operation.
2-7. RS422 Wiring
The RS-422 mode supports 4 channels with full duplex operation for Receive, Transmit, The data
lines are in differential pairs.