Name: NM-4/E1D 4-Port E1 Module Revision D
Brand: Marconi
Price: 1779.95 USD
Availability: InStock

Marconi NM-4/E1D NM-4/E1D 4-Port E1 Module Revision D

The Marconi NM-4/E1D is a compact 4-port E1 interface module designed for high-density telecom and data networking environments. Revision D brings enhanced reliability and improved signal integrity, making it an ideal choice for carriers, service pro... Read More

price

$1,779.95

In Stock: 1
Manufacturer: Marconi
Model or Part: NM-4/E1D
Condition: Refurbished
Weight: 5.00lb

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Product Information

Item Condition

New - Sealed or Open Box Condition
Excellent - Almost-New, Missing Original Packaging
Refurbished - Seller Refurbished, Good Condition, Previously Used Item

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Description

Overview
The Marconi NM-4/E1D is a compact 4-port E1 interface module designed for high-density telecom and data networking environments. Revision D brings enhanced reliability and improved signal integrity, making it an ideal choice for carriers, service providers and enterprise networks that require robust E1 connectivity in a space-saving form factor.

Key Features

Four independent E1 ports with full-duplex operation
Supports both PCM30 and PCM31 framing formats
Built-in line and alarm monitoring with LED status indicators
Hot-swap capable for zero-downtime maintenance
Low power consumption and efficient thermal design
Compliant with ITU-T G.703, G.704 and G.711 standards

Technical Specifications

Port type: E1 (2.048 Mbit/s) per port
Maximum data rate: 8.192 Mbit/s aggregate
Operating voltage: 5 V DC
Power consumption: less than 5 W total
Temperature range: 0 to 70 deg C operating
Storage temperature: -40 to 85 deg C
Dimensions: 1U rack mount, 19 inch chassis
Connector type: RJ48C female per port
Signal loss: less than 0.5 dB per meter of cable

Applications
The NM-4/E1D is suited for a wide range of applications including:

Backbone aggregation in metro and regional networks
Voice over IP gateways and PSTN interfacing
Remote radio head (RRH) connections in cellular sites
Enterprise PBX and unified communications systems
Industrial control and SCADA systems requiring reliable E1 links

By delivering four high-performance E1 ports in a single, reliable module, the Marconi NM-4/E1D helps reduce equipment footprint, simplify cabling and lower total cost of ownership while maintaining the stringent performance standards demanded by modern telecommunications infrastructure.