Specifications

Service Manual
Circuit Diagram
11-4
11.2 FAX Section
11.2.1 Modem Part
11.2.1.1 BLOCK DIAGRAM
DSP SSD
System
Side
Dervice
CX20493
LSD
Line
Side
Dervice
Transformer
Capacitor
Ext Line
Implemented by based on Conexant DAA (Data Access Arrangement) Solution , and is roughly composed of two
kinds Chip Solution
- CX82500(SFM336) : Existing Modem Chip which adds SSD (System Side Device) for interfacing between -
- LSD and DIB of FM336Plus Core
- CX20493(LSD) : LIU (Line Interface Unit) Chip which is controlled by SSD and satisfies each PSTN
requirements by modulating internal Configuration with connecting Tel Line.