Cable Length, Uplinking | Network Technologies FES-1800 instruction

How to Configure a Fast Ethernet Network?

Cable Length

In a Fast Ethernet network, twisted-pair cables have a length limit. No UTP or STP cable can be of more than 100 meters (328 feet). A signal can not be sent between two end nodes through more than 200 meters of twisted pair cable.

In a non-uplinked network, all end nodes are thus connected to a switch through cables which do not exceed 100 meters in length. For this reason, a non-uplinked network is said to have a maximum diameter of 200 meters (656 feet), as a signal first has to be sent from one end node to the switch and then be repeated from the switch to another end node.

When configuring, network users must be certain that no cable exceeds the length limit and that this length is well managed between end nodes and the switch.

Uplinking

Uplinking a switch with another network expansion device, such as a router, switch, bridge, or repeater hubs allows users to increase the number of ports on a network. A 100BASE-TX switch can be uplinked with another 10BASE-T/100BASE- TX Switch/Repeater Hub through a twisted-pair cable. This is easy and inexpensive to increase the number of interconnected nodes in a network. Uplinking switches, however, adds additional network constraints.

The maximum diameter of an uplinked network must not exceed 200 meters (656.2 feet)), and the total length between two end nodes must be no longer than 200 meters. Despite of the length limit, users have to be aware of the following rules when uplinking two switches:

1.When uplinking two network devices, one jack on each switch must be used.

2.The uplink cable applied between both switches must be Category 5 UTP, Category 1 STP or equivalent twisted-pair cable.

3.When uplinking port 8 to another switch, the read panel on the switch must be set to X position.

Besides expanding a network, uplinking switches may allow users to adopt dif- ferent types of network topologies to manage their needs.