Chapter 6 Peripherals 
6-6 
6.3 Option card 
6.3.1 RS-485 option card (Model: JNSIF-485) 
 
 
 
JNSIF-485 wiring diagram: 
 
 
 
※ Note : 
In order to avoid external static electricity interference with option cards function, please replace 
cover of the inverter after installing option cards. 
Please use isolated RS232 / RS485 converter connections with PC and option card to avoid 
equipment damage.
Red cable to 24V 
Black cable to COM 
Figure 6-2 JNSIF-485 MODULE 
Figure 6-3 JNSIF-485 wiring diagram