5
2.4.2 Connector COM1[RS485] , COM3[RS485] and COM3[RS232]
The 9 Pin, Female, SUB-D, COM1 [RS-485] , COM3 [RS-485] and COM3 [RS-232] Port on the back
of the unit is the RS-232 and RS485/422 communications port for connecting to a controller.
Connection
Pin Designations
COM1 [RS-485]
COM3 [RS-485]
COM3 [RS-232]
Pin assignment of the 9 Pin, Female, SUB-D COM1 [RS-485], COM3
[RS-485] and COM3 [RS-232] Port
Pin# Symbol
Com1
[RS485]2w
Com1
[RS485]4w
Com3
[RS485]
Com3
[RS232]
1 Rx-
Data-
Rx-
2 Rx+ Data+
Rx+
3 Tx-
Tx-
4 Tx+
Tx+
5 GND
Signal
Ground
6 Data-
Data-
7 TxD
Transmit
8 RxD
Receive
9
Data+
Data+
2.4.3 USB Host port
Support various devices with USB interface, such as mouse, keyboard, USB
stick, printer…etc.
2.4.4 Connecter Wire
MT8-Ethernet/RZC045120: Direct connect (Ethernet crossover cable)
MT8000 Ethernet RJ45 Wire color
PC or Note Book RJ45
1 TX+ White/Orange
3
RX+
2 TX-
Orange
6
RX-
3 RX+ White/Green
1
TX+
4 BD4+ Blue
4
BD4+
5 BD4- White/Blue
5
BD4-
6 RX-
Green
2
TX-
7 BD3+ White/Brown
7
BD3+
8 BD3- Brown
8
BD3-
MT8-COM1/RZC002320
1
5
6
9
5
9
1
6
6
9
1
5
