Comparison among Different LAN Standards

The difference among various LAN standards lies on their way of communication. The most popular and common standards are as follow:

1.        10base-2
2.        10base-5
3.        10base-T2
4.        100base-TX
5.        1oobase-T4
6.        100base-T2
7.        1000base-T

Etc.

Some differences among them are pointed below:

 10base-2

• IEEE 802.3a standard
• Speed 10Mbps per second.
• Use thin (RG-58A/U) coaxial cable for transmission medium.
• Use T-type BNC connector as attachment media.
• Same cable used for transmitting and receiving.
• Not possible to extend without breaking service.                      

10base-5              

• IEEE 802.3 standard
• Speed 10Mbps per second.
• Use thick (RG-8) coaxial cable for transmission medium.
• Use T-type BNC connector as attachment media. 
• Same cable used for transmitting and receiving.
• Not possible to extend without breaking service. 
• Encoding system is described as Manchester

10base-T2          

• IEEE 802.3i standard
• Speed 10Mbps per second.
• Use CAT-3 UTP cables for transmission medium.
• Use only two pairs of cable.
• Use one pair for transmitting and another for receiving.
• Use RJ-45 connector as attachment media.
• Transmit 4 bits per symbol.
• Can be extended without breaking service

100base-T4     

• IEEE 802.3u standard
• Speed 100Mbps per second.
• Use CAT-3 or higher UTP cables for transmission medium. 
• Use all four pairs of cable.
• Only half duplex capable
• Use one pair for transmitting and another for receiving and the rest two pairs direction switched.
• Use RJ45 connector as attachment media.
• 5 level encoding (8B6T binary encoding system) is used
• Can extend without breaking service

100base-TX         

• IEEE 802.3u standard
• Speed 100Mbps per second.
• Use CAT-5 or higher UTP cables for transmission medium.
• Use only two pairs of cable.
• Full duplex capable
• Use one pair for transmitting and another for receiving.
• Use RJ45 connector as attachment media.
• Transmits 4bits per symbol
• 3 level encoding (4B5B binary) system is used which is described as MLT-3, sometimes called NRZI-3
• Can extend without breaking service

                               

100base-T2        

• IEEE 802.3y standard
• Use CAT-3 or higher UTP cables for transmission medium.
• Speed 100Mbps per second.
• Use only two pairs of cable.
• Full duplex capable
• Use both pair simultaneously either for transmitting or receiving media.
• Map 4-bit nibbles to 2 symbol code-groups described as PAM5
• Can extend without breaking service

1000base-T        

•  IEEE 802.3ab standard
• Speed 1000Mbps or 1 gigabit per second.
• Use all four pairs of cable.
• Full duplex capable
• CAT-5, CAT-5e or CAT-6 UTP cables required.
• 8B1Q4 Map 8-bit bytes to 4-symbol code-groups, one symbol is sent on each pair. It is described as 4D-PAM5.
• 1000BASE-TX is a simplified version of 1000base-T which use CAT-3 UTP cable and PAM-3 technique.