Samsung SCX-6320F/XEC Service Manual page 40

Summary of Product
3) RAM
16MB SDRAM is used as System Program buffer or Network Data buffer.
4) PHY
The Physical Network interface driver, it requires a 25MHz clock input.
5) RJ-45
6) LEDs
Comprising 2 LEDs that display the Network Link status and System Operation status.
7) Regulator
It converts 3.3V which is supplied from Main Controller PBA into 1.8V for CPU core operation.
8) Clock
The System clock which is needed for the Network Card operation, it needs a precision 25MHz ±50ppm X-tal
source.
9) EEPROM
Non-volatile memory for storing Network setting parameters, it stores various parameters e.g. TCP/IP and Netware
settings.
10) IEEE802b.11
Whilst the NPC card is capable of supporting the Wireless interface module this is not implemented in
SCX6220/6320F.
11) 80 pin Connector
This connector passes all of the electrical signal required for communication between the Main PBA and the
NPC. This comprises Address Bus, Data Bus, Control Bus and Power signals.
Service Manual
4-18
Samsung Electronics