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Network Termination Unit

and Line Card for ULAF+ Access Switch




The QSTU is a SHDSL termination unit equipped with 4 SHDSL interfaces and (depending on the operating mode) up to 4 autonomous G.703 subscriber interfaces, what means, that an ULAF+ subrack can host up to 64 systems.
The QSTU significantly reduces space requirements in central offices, collocation and customer premises, thus reducing overall system costs. For cost-sensitive Telecom companies, the QSTU is the ideal platform to deploy 2 Mbit/s services.

  • SHDSL.bis over 4wire pairs
  • up to 4 E1 systems per unit
  • up to 11.4Mbit/s Ethernet payload
  • add/drop: ‘Fractional E1’ and Eth or nx64kbit/s data into 2Mbit/s G.704
  • add/top: E1 and Eth or nx64kbit/s data over 1 or 2 wire pairs
  • 8 stage repeater support (BSRU/BSRU+)
  • optional integrated remote power supply
  • versatile clocking options


SHDSL termination unit equipped with 4 SHDSL interfaces and up to 4 autonomous G.703 subscriber interfaces

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