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The BSTU4 is an Ethernet Network Termination Unit of the ULAF+ SHDSL product family designed to transmit broadband traffic over multiple copper wire-pairs.

The BSTU4 is the leading choice for delivering business class service levels over Ethernet Networks with its high reliability. The built in Layer 2 switch with comprehensive VLAN support and flexible QoS prioritisation allows for carrier class multiservice applications.
In Metro and Campus applications the BSTU4 transmits Ethernet services up to 22,8 Mbit/s.
The BSTU4 helps network operators bridging the existing bandwith gap between E1 and E3/STM-1 services by bundling up to 4 E1 channels, over legacy SDH/TDM networks.


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