The Ericsson FZ79503-00-00 is an LFU (Line Filter Unit), a filter card used within the Ericsson MD110 PBX. It is fitted in the system’s filter magazine, where it conditions the supply and line connections by filtering electrical noise and interference to help maintain clean, stable operation of the exchange. Filter units of this type protect the sensitive switch and line boards from disturbances on the power and line paths within the cabinet. This is a legacy component from the MD110 family, a modular digital PBX widely deployed in enterprise and multi-site environments and later supported under the Aastra and Mitel MX-ONE portfolios. The FZ79503-00-00 remains relevant for organisations maintaining existing MD110 installations or holding spares for installed filter equipment. Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.
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.
Frequently asked questions
Is the Ericsson FZ79503-00-00 refurbished or new?
Tech-Star supplies both new and refurbished Ericsson FZ79503-00-00. Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the Ericsson FZ79503-00-00?
Refurbished Ericsson FZ79503-00-00 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 Ericsson FZ79503-00-00?
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 Ericsson FZ79503-00-00 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 Ericsson FZ79503-00-00 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.