Figure 5 Rj45 Connector - Quanmax QBOX-207T User Manual


Connecting to a network device
Connect one end of a network cable to the LAN port on the system rear panel and
the other end to a hub or switch.

COM ports
COM ports with the pin definitions.
COM 1
QBOX-207T User's Manual
RJ45

Figure 5 RJ45 connector

COM3
COM 2
COM1~2 RS-232 / 422 / 485 Port DB-9
Pin RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 +5V
COM4
Half Duplex
RS-422
RS-485
TX- DATA-
TX+ DATA+
RX+ N/A
RX- N/A
GND GND
N/A N/A
N/A N/A
N/A N/A
+5V +5V
17
Chapter 2
Full Duplex
RS-485
TX-
TX+
RX+
RX-
GND
N/A
N/A
N/A
+5V