Samsung SCX-6545N Service Manual page 51

< Block Diagram >
< Parallel VS Serial >
The FAX unit has a parallel and a serial type
according to PSTN.
- How to connect a serial fax first.
1) Users can use fax by connecting line cord into
Line RJ11.
2) 2'nd phone can be used by 4 line cord.
- Parallel Fax
1) Users can use fax by connecting line cord into
Line RJ11.
2) If an user want to use a 2'nd phone, just connect
to External RJ11.
Service Manual
Product spec and feature
2-39
Samsung Electronics