5
2.3.2 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+
* The Com1 RS232/RS485 2wire/4wire, Com3 RS232/RS485 mode can be set by CECP.(In the Windows CE
desktop)
2.3.3 USB Host port
The USB Host port can connect USB mouse and USB keyboard.
2.3.4 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+
6 RX-
Green
2 TX-
MT8-COM1/RZC002320
1
5
6
9
5
9
1
6
6
9
1
5
