FORE Systems NM-4/155IR3MMD ASX ATM switch series Optical Transmission Module

FORE Systems NM-4/155IR3MMD ASX ATM switch series Optical Transmission Module Image 1

FORE Systems NM-4/155IR3MMD: four port 155 Mbit/s OC-3c/STM-1 ATM network module, one single mode intermediate reach port plus three multimode ports.

The FORE Systems NM-4/155IR3MMD is a four port ATM network module running at 155 Mbit/s OC-3c/STM-1. The port mix is one single mode intermediate reach interface alongside three multimode interfaces, which is the combination used where a switch needs a longer inter-site hop plus local multimode connections from the same card.

FORE Systems built the ASX range of ATM switches and the NM series network modules that populate them. Marconi acquired FORE in 1999 and continued the line, so you will find the same modules quoted under both names. We list them under FORE Systems to match the numbering on the module itself, which keeps this card with the rest of its family in the catalogue.

Tell us the switch model and the slot you are populating, along with the fibre types at each end, and we will confirm the module before anything ships. Tech-Star is UK-based and ships worldwide. Get in touch to confirm compatibility with your installation.

Worldwide supply. We export new and refurbished telecoms and networking equipment internationally. International buyers welcome, request a delivered quote in your currency. Supply subject to export checks.

From the same manufacturer

Frequently asked questions

Is the FORE Systems NM-4/155IR3MMD refurbished or new?
Tech-Star supplies both new and refurbished FORE Systems NM-4/155IR3MMD. Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the FORE Systems NM-4/155IR3MMD?
Refurbished FORE Systems NM-4/155IR3MMD comes with a 90-day parts and labour warranty as standard. Extended warranty options are available on request.
How do I get a price for the FORE Systems NM-4/155IR3MMD?
Pricing reflects current stock and lead time, so we quote per enquiry. Submit the part number through the contact form for a quote, typically within one business hour.
Can the FORE Systems NM-4/155IR3MMD be returned?
Returns are accepted within 14 days of delivery in line with our return policy. A restocking fee may apply for opened items.
How quickly can the FORE Systems NM-4/155IR3MMD be delivered?
Lead time depends on current stock. UK-based items typically ship the next business day; sourced items vary. We confirm lead time at quote.

Key FeaturesFour port ATM network module; 155 Mbit/s OC-3c/STM-1; one single mode intermediate reach port; three multimode ports
ApplicationsATM backbone and campus links; mixed single mode and multimode fibre connections from one card
CompatibilityFORE Systems ASX ATM switches and their Marconi badged equivalents
SpecificationsFORE Systems part number NM-4/155IR3MMD; 4 x 155 Mbit/s; 1 x SMIR, 3 x multimode; ATM network module
PlatformFORE Systems ASX ATM switch series
ManufacturerFORE Systems

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