Allied Telesis AT-XEM-2XS SFP+/AT-XEM-2XT expansion module range

The AT-XEM-2XS SFP+ and AT-XEM-2XT dual 10G ethernet expansion modules for the x900 series and SwitchBlade x908 switches have been introduced.

The modules complement the existing XEM series, maintaining the same levels of functionality and resilience while offering users the choice between a fibre transceiver and a low cost copper version based on a twinax cable.

The range is suitable for users who have a legacy network based on copper cabling who wish to invest in new equipment without upgrading the entire network.

Compared with the XFP based XEM, which only supports fibre optic transceivers, the SFP+ XEM supports both fibre and twinax copper, the latter brings about cost savings, reductions in power consumption and lower latency.

For medium-range distances, the AT-XEM-2XT module copper connections can be made over high quality UTP cable up to 100 m. While the twinax connector has limited cable length, 10 G links can be used to connect to high performance switches or as inter-switch links.

An additional benefit of the range is that it allows more connectors to be physically mounted in a small space and all future gigabit products will be based on SFP+.