The ED3331 is used in pairs to extend Ethernet connectivity over existing coaxial cable, capable of achieving distance of up to 2600m (8530ft) and speeds of up to 85Mbps - please see the datasheet for line rate versus distance table. The ED3331 can be configured as the local or remote extender by a DIP switch meaning that spares provision is kept simple. The ED3331 must be used in pairs. Alternatively, an ED3331 can be used in conjunction with an ED3341 - a hardened version for harsh environments. This solution is ideal for systems that require only an office grade device at the central location and a hardened extender for field installation.