TECO JN5-CM-USB - Page 2

JN5-CM-USB connection cable instruction
Page 2 of 2
4KA72X323 Ver:01 2012/05
2. Communication port and pin define instruction
2.1 USB communication port pin define of pc side.
Inverter can communicate with PC or other devices via USB communication port
RS485 communication port pin define of inverter side.
2.2 RS485 communication port instruction and pin define.
Pin No.
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Define
A
B
NC
NC
NC
NC
VCC
GND
Note:
1. A/B phase signal (Pin1&Pin2) is differential mode data signal of RS485.
2. VCC&GND is the +5Vdc power supply provided by inverter internal power source.
3. Notice
3-1. Please turn off the power before you connect the cable..
3-2. Once inverter power off during communication. PC software will show
“communication error”.
3-3. If there is something wrong during communication, please check the wiring
connection and restart the pc software.