Dell 1815dn Manual do Utilizador descarregar pdf (Página 20)

Service Manual

System Outline

4-2

3) SDRAM : is used as Swath Buffer in Printing, Scan Buffer in Scanning, ECM Buffer in FAX receiving,

and System Working Memory Area

- size : 64Mbyte(Basic) , 96Mbyte(Duplex)

4MB : System Working Memory Area and Scan Buffer

4MB : FAX Memory Receive Area

16MB : Printing System Working Memory Area

- Max Frequency : 166MHz

- store Fax Receive Memory Data by using Battery

4.1.2 FAX Section

Modem Part

BLOCK DIAGRAM

Implemented by based on Conexant DAA (Data Access Arrangement) Solution, and is roughly composed of

two kinds Chip Solution

- CX86710 (SFX336): 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.

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 151 152

Sem comentários

Dell 1815dn Manual do Utilizador Página 20