### Setting of External Device

On the front of the link interface, use the rotary switch and dip switch to define the External Device communication settings.

Please refer to the manual of the External Device for more details.

- Rotary Switch

  Rotary Switch | Setup Value | Description
  --- | --- | ---
  SW1 | 0 | Station No. (ten's digit)
  SW2 | 0 | Station No. (one's digit)
  SW3 | 1 | 19200bps

- Dip Switch

  Dip Switch | Setup Value | Description
  --- | --- | ---
  SW4-4 | OFF | Data bits: 8bits
  SW4-3 | ON | Stop bits: 1bit
  SW4-2 | ON | Computer link
  SW4-1 | OFF | 2-wire (fixed)

NOTE

- To communicate PC/CMP-LINK (THU-2755) and PC10G using PC3J command, use the link unit ver. 5.00 or later is required. Also, the link unit does not have the settings of PC2J or PC3J selection switch (SW) etc. Error occurs when sending PC3J command to the link unit in less than ver. 5.00.