Name: 4-Port 155Mbps OC-3c/STM-1 SMF Network Module
Brand: Fore Systems
Price: 653.95 USD
Availability: InStock

Fore Systems NM-4/155SMIRD 4-Port 155Mbps OC-3c/STM-1 SMF Network Module

The Fore Systems NM-4/155SMIRD is a compact 4-port network module that delivers high-speed 155Mbps OC-3c/STM-1 connectivity over single-mode fiber (SMF). Designed for carrier-grade routers and switches, this module provides reliable, low-latency tran... Read More

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$653.95

Ships next business day.

In Stock: 10
Manufacturer: Fore Systems
Model or Part: NM-4/155SMIRD
Condition: Refurbished
Weight: 18.00lb

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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 Fore Systems NM-4/155SMIRD is a compact 4-port network module that delivers high-speed 155Mbps OC-3c/STM-1 connectivity over single-mode fiber (SMF). Designed for carrier-grade routers and switches, this module provides reliable, low-latency transport for voice, video, and data services in metro and long-haul networks. Its plug-in form factor simplifies installation and maintenance while supporting full duplex operation on all four ports.

Key Features

Four independent 155Mbps OC-3c/STM-1 ports on a single SMF interface
Full duplex operation with 2.5Gbps aggregate throughput
Hot-swap capable for zero-downtime upgrades
Built-in error detection and correction for high data integrity
Compact 2U rackmount design with low power consumption
Compatible with a wide range of Fore Systems chassis and third-party platforms

Technical Specifications

Model/Part Number: NM-4/155SMIRD
Interface: Single-mode fiber (SMF) with LC connectors
Data Rate: 155Mbps per port (OC-3c/STM-1)
Aggregate Bandwidth: 2.5Gbps full duplex
Operating Temperature: 0 to 55 degrees Celsius
Power Supply: 12V DC, 1.5A max per module
Dimensions: 2U rackmount, 17.5mm height
Compliance: RoHS, FCC Part 15 Class B

Applications

Metro Ethernet and broadband aggregation
Carrier backhaul for voice and video transport
Enterprise campus interconnects
Data center uplinks requiring high reliability
Network redundancy and load balancing in critical infrastructure
Government and defense communication networks

With its robust feature set and easy integration, the Fore Systems NM-4/155SMIRD 4-Port 155Mbps OC-3c/STM-1 SMF Network Module is an ideal solution for service providers and enterprises seeking scalable, high-performance fiber connectivity.