Connect the printer to a telephone wall jack using an RJ-11 (6P2C) phone cable. When connecting a telephone to the printer, use a second RJ-11 (6P2C) phone cable.
Depending on the area, a phone cable may be included with the printer. If it is included, use that cable.
You may need to connect the phone cable to an adapter provided for your country or region.
Remove the cap from the EXT. port of the printer only when connecting your telephone to the printer. Do not remove the cap if you are not connecting your telephone.
In areas where lightning strikes occur frequently, we recommend that you use a surge protector.