Ethernet Board; Ethernet Board Layout - Ricoh B089 Service Manual

4. DETAILS

4.1 ETHERNET BOARD

4.1.1 ETHERNET BOARD LAYOUT

The Ethernet board is provided as a standard feature of this machine.
Function Blocks
PHY (Physical Layer Device)
EEPROM
The physical layer device, the lowest layer of the OSI reference model, refers to
the physical components of the network: cables, connectors, and so on. OSI, the
Operating Standard Interface, is a framework upon which networking standards are
arranged. It is commonly diagramed as a layered cake.
SM
EEPROM
LED
PHY DP83843
LED
Filter Module
Connector
LAN I/F
Completely standardized physical layer device for the
functions of each device in the network.
Stores the MAC address.
4-1
ETHERNET BOARD
XTL
25 MHz
B577D002.WMF
Description
B577