Plotter COM Connection Instruction
1) Check if your PC has COM1 Port/ series port , COM1 is a connecter with 9 pins. you can find serial port cable in box.

COM1 Port setting
Connect COM1 port and plotter, turn on plotter.
1) Click start. 2)Right click My Computer. 3)Click Properties	4)Click Hardware. 5)Click Device Manger 6) Click + (Ports) 7)Right click Communications Port (COM1) 8) Click Properties
	9) Click Port Settings. Bits per second: 9600 Data bits: 8 Parity: None Stop bits:1 Flow control: Xon/Xoff 10) Click OK. COM1 Port has been set already.