3AL78832AA ALCATEL 1650SM-C Optical Transmission Module

3AL78832AA ALCATEL 1650SM-C Optical Transmission Module Image 1

Alcatel 3AL78832AA 1650SM-C A21E1 SDH transmission system module.

The Alcatel 3AL78832AA is an A21E1 module designed for the Alcatel 1650SM-C Synchronous Digital Hierarchy (SDH) transmission platform. This card provides essential multiplexing and transmission functions within compact SDH network equipment, supporting telecommunications carriers and enterprise networks requiring reliable synchronous optical transport.

The 1650SM-C system is a compact SDH multiplexer typically deployed in access and metro network environments. The A21E1 designation indicates this module handles E1 tributary interfaces, enabling the aggregation of multiple 2 Mbit/s circuits for transport over higher-rate SDH infrastructure.

This is a legacy product from Alcatel’s optical transmission portfolio, predating the Alcatel-Lucent merger. While no longer in active production, the 1650SM-C platform remains operational in many established networks, creating ongoing demand for replacement modules and spares to maintain service continuity.

Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

From the same manufacturer

Key FeaturesE1 tributary interface support; SDH multiplexing functionality; Compact form factor for 1650SM-C chassis
ApplicationsMetro SDH networks; Telecommunications access networks; E1 circuit aggregation
CompatibilityAlcatel 1650SM-C SDH multiplexer
SpecificationsE1 interface (2 Mbit/s); SDH transmission technology
Platform1650SM-C
ManufacturerALCATEL

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