1.2.2
MJ1/MJ2
The MJ1 and MJ2 ports support communication via RS-232C and RS-485 (2-wire system).
MJ1 is also usable as a screen program transfer port.
CAUTION
Pin Arrangement
MJ1/MJ2
MJ1/MJ2
RJ-45 8pin
* For MJ1, MJ2 and USBA, the maximum allowable current is 150 mA in total (only when the installation angle of MONITOUCH is within 60
to 120).
Recommended Cable
Hakko Electronics' cable "V6-TMP" 3, 5, 10 m
Notes on Configuring a Cable
CAUTION
Pin arrangement
on MONITOUCH
Applicable Devices
Port
Computer (screen program transfer)
MJ1
PLC, temperature controller, inverter, servo, barcode reader, V-Link, slave communication (Modbus RTU), serial printer
MJ2
PLC, temperature controller, inverter, servo, barcode reader, V-Link, slave communication (Modbus RTU), serial printer
MJ1 and MJ2 use the same type RJ-45 connector as the LAN connector.
To prevent damage to the device from an external power supply of the MJ, check the indication
on the unit and insert a cable in the correct position.
MJ1 and MJ2 are not usable for connection via RS-422 (4-wire system). Use the CN1 port
instead or a commercially available RS-232C-to-RS-422 converter.
1 2 3 4 5 6 7 8
Pins No. 3 and 4 are provided for external power supply. To prevent damage to the device due to
wrong connection, check the pin numbers and connect wires correctly.
8 7 6 5 4 3 2 1
No.
Signal
1
+SD/RD
2
SD/RD
3
+5V
4
5
SG
6
7
RD
8
SD
Recommended Cable
Pin arrangement
on the cable
1 2 3 4 5 6 7 8
Applicable Devices
1.2 Physical Ports
Contents
RS-485 + data
RS-485 data
*
Externally supplied +5 V
Signal ground
RS-232C receive data
RS-232C send data
1-5