1Base5 Medium Specification (StarLAN)

1 Mbps, Manchester encoding.
To provide a very low cost system for PC local networks.
Based on Hubs architecture. Also called StarLAN.
Use UTP (Unshielded Twisted Pair) cable.
Single Hub network
Multiple Hubs network
- Up to five levels of Hubs can be cascaded
- One Header Hub(HHub) and one or more Intermediate Hubs(IHubs)
- The maximum distance between adjacent Hubs is 250m.
- The maximum span of the network (five level) is 2500m.

Notes: