Marconi NM-4/DS1D 4-Port DS1 Module (D Series)

Overview

The Marconi NM-4/DS1D 4-Port DS1 Module (D Series) is a compact, high performance interface designed for reliable digital signal transmission in telecom and data networking environments. This module provides four independent DS1 (E1) ports in a single chassis, delivering flexibility and space savings for modern carrier and enterprise installations.

Key Features

• Four simultaneous DS1 (E1) channels in one module
• Hot swap capable for zero downtime maintenance
• Integrated diagnostics and alarm monitoring
• Low power consumption with efficient power management
• Robust metal enclosure for EMI shielding and physical durability
• Plug and play configuration with standard RJ-48C connectors

Technical Specifications

• Interface: DS1 (E1) 2.048 Mb/s per port
• Connector type: RJ-48C (4 pins)
• Operating temperature: 0 to 55 deg C
• Storage temperature: -40 to 85 deg C
• Power supply: 12 VDC, 2 A max
• Dimensions (H x W x D): 1.75 in x 4.5 in x 5.0 in
• Compliance: CE, FCC, RoHS

Applications

The NM-4/DS1D is ideal for:

• Carrier grade voice and data transport
• Enterprise PBX and unified communications systems
• Metro Ethernet aggregation points
• Remote site backhaul and redundancy
• Test and measurement equipment requiring multiple DS1 streams

By consolidating four DS1 interfaces into a single, easy-to-install module, the Marconi NM-4/DS1D helps reduce rack space, simplify cabling, and lower overall system cost while maintaining the high reliability expected in mission critical networks.