Product spec and feature2-11Service Manual2.2.1.2 FAX Section1) Modem PartBLOCK DIAGRAMImplemented by based on Silab DAA (Data Access Arrangement) Solution, and is roughly composed of twokinds 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 PSTNRequirements by modulating internal Configuration with connecting Tel Line.
