Introduction
The Nokia (formerly Alcatel-Lucent) 1642EM is a compact, carrier-grade STM-1/4 MSPP (Multi-Service Provisioning Platform) belonging to the OMSN (Optical Multi-Service Node) family. It is designed for metro access, customer premises (CPE), and enterprise edge networks, integrating SDH/TDM and Ethernet services in a space-saving 2RU form factor.