ALCATEL 3AL97042ABAA -Lucent 1642 EM / 1642 EMUX Edge Multiplexer Power Supply

The Alcatel 3AL97042ABAA is a DC power supply unit for the Alcatel-Lucent 1642 EM (Edge Multiplexer) and 1642 EMUX platform, catalogued by the manufacturer under the internal designation DC48B. It accepts standard -48V DC telecom power and converts it into the regulated supply rails needed by the 1642 EM shelf and its plug-in tributary, controller, fan and Ethernet boards. The 1642 EM is Alcatel-Lucent’s compact SDH/MSTP multiservice provisioning platform, built to carry legacy E1/E3 TDM traffic alongside Fast Ethernet access services in metro and access networks, and typically runs with two DC48B units fitted for 1+1 power redundancy so that a single supply failure does not take the shelf down. Suffix AA identifies this as a specific hardware revision of the DC48B design; later revisions are functionally interchangeable in the same power bay. The module is a hot-pluggable field-replaceable unit, intended for engineers maintaining, expanding or repairing existing 1642 EM/EMUX deployments rather than for new-build designs. Tech-Star (UK-based, shipped worldwide) holds new and refurbished stock of Alcatel-Lucent 1642 EM parts – get in touch to check current availability and lead time for this unit.