NEC 48E1INTFC H3000A Telecom System Card / Module

The NEC 48E1INTFC is a 48-port E1 tributary interface card for NEC’s H3000A telecommunications transmission platform, part of NEC’s long-running family of digital transmission and microwave radio systems used by network operators for carrying multiple 2.048 Mbit/s E1 circuits over a shared transport link. As a tributary interface, the card’s role is to terminate 48 individual E1 connections at the equipment shelf and hand them off into the transmission system’s internal multiplexing structure, allowing a single H3000A node to aggregate a large number of E1-based voice or data circuits for onward transport across the network backbone. High port-density interface cards like this one were a standard building block in NEC’s telecom transmission product lines through the 2G/3G mobile backhaul era, when operators needed to consolidate growing numbers of E1 links from base station sites. Tech-Star (UK-based, shipped worldwide) stocks this card for engineers maintaining or expanding legacy NEC transmission equipment. Get in touch to check current stock and confirm fit for your platform.