CM312 datasheet(50/56 Pages) ETC

50 / 56 page

CM312 Quad Serial utilityModule

RTD Embedded Technologies, Inc.

Chapter 6

REFERENCE INFORMATION

This chapter contains reference information concerning:

•

Ethernet References

•

Types of Ethernet

•

Types of Ethernet Cable

•

Ethernet Frames

•

IEEE 802 MAC Number

Ethernet References

To learn more about Ethernet, you might start with:

Charles Spurgeon’s Ethernet Website:

http:wwwhost.ots.utexas.edu/ethernet/ethernet-home.html

This site provides thorough overviews of 10 Mbps and faster Ethernet.

Types of Ethernet

There are three standard types of 10 Megabit Ethernet, of which 10Base-T is by far the most

common, and 10Base-5 is by far the least common.

Ethernet

Type

Nickname

Data transfer

rate

Topology

Cable type

Maximum

Segment

length

10Base-T

“Cheapernet”

10 Mbps

Star

100 ohm UTP

(unshielded

twisted pair)

100 m

328 ft

10Base-2

“Thin” Ethernet

10 Mbps

Bus

RG-58 coaxial

185 m

607 ft

10Base-5

“Thick”

Ethernet

10 Mbps

Bus

RG-11 coaxial

500 m

1640 ft

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