Defining 10Base2

Background

There are some sets of standards in the topologies. These standards specify some specific cabling, type of transmission and speeds etc. For example, within Western music, What are the instruments used in Jazz. Now these all instruments can be used individually. But when you play them in a group to create a specific music-atmosphere, then it would be considered as Jazz. If you want to play Violin, you would be violinist. But if you play with 20 violinists, and many bass players, and other instruments, you would be playing Orchestra rather than Violin.

I mean to say, there are especially-defined cabling types, way of transmission, and other goodies that can be used randomly, but using them in a specific way as mentioned by IEEE organization, it would be giving it some specific name. For example, there are following standards of 802.3 Specification:

1. 10Base2
2. 10Base5
3. 10BaseT
4. 10Base-FL
5. 100VG-AnyLAN
6. 100BaseX

In this article, 10Base2 is discussed.

10Base2

The 10Base2 cabling topology (Thinnet) generally uses the onboard transceiver of the network interface card (NIC) to translate the signals to and from the rest of the network. Thinnet cabling uses BNC T-connectors that directly attach to the network adapter. Each end of the cable should have a terminator, and you must use a grounded terminator on one end.

The main advantage of using 10Base2 in your network is cost. When any given segment on the network doesn't have to be run further than 185 meters (607 feet), 10Base2 is often the cheapest network cabling option.

10Base2 is also relatively simple to connect. Each network node connects directly to the network cable by using a T-connector attached to the network adapter. For a successful installation, you must adhere to several rules in 10Base2 Ethernet environments, including the following:

1. The minimum cable distance between clients must be 0.5 meters (1.5 feet).
2. Pig Tails, also known as drop cables, from T-connectors shouldn't be used to connect to the BNC connector on the network adapter. The T-connector must be connected directly to the network adapter.
3. You may not exceed the maximum network segment limitation of 185 meters (607 feet).
4. The entire network-cabling scheme cannot exceed 925 meters (3,035 feet).
5. The maximum number of nodes per network segment is 30 (this includes clients and repeaters).
6. A 50-ohm terminator must be used on each end of the bus with only one of the terminators having either a grounding strap or a grounding wire that attaches it to the screw holding an electrical outlet cover in place.

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