Service manual

Product spec and feature
2-11
Service Manual
2.2.1.2 FAX Section
1) Modem Part
BLOCK DIAGRAM
Implemented by based on Silab DAA (Data Access Arrangement) Solution, and is roughly composed of two
kinds Chip Solution
- Si2435 (SSD) : Existing Modem Chip which adds SSD (System Side Device) for interfacing between LSD
- Si3018 (LSD) : LIU (Line Interface Unit) Chip which is controlled by SSD and satisfies each PSTN
Requirements by modulating internal Configuration with connecting Tel Line.