Network Interface Board (Nib) (B594); Operation - Ricoh B064 Service Manual

NETWORK INTERFACE BOARD (NIB) (B594)

1.4 NETWORK INTERFACE BOARD (NIB) (B594)
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.

Operation

The NIB is a standard IEEE802.3u type which implements 10/100Mbps auto
negotiation. System initialization sets the network for 10Mbps/100Mbps.
B659/B581/B596/B582/G377/B609/B735
Completely standardized physical layer device for the
functions of each device in the network.
Stores the MAC address.
LED 2
LED 1 (Green)
LED 2 (Orange)
Description
LED 1
Indicates the link status:
ON Link Safe
OFF Link Fail
Indicates the operation mode:
ON 100 Mbps mode
OFF 10 Mbps mode
4
B659D901.WMF
SM