Ericsson ROF 131 4309/2 (R3B) MD110 Telecom System Card / Module

Ericsson ROF 131 4309/2 (R3B) MD110 Telecom System Card / Module Image 1

Ericsson TRU3 plug-in circuit board (ROF 131 4309/2, R3B) for the Ericsson MD110 digital PABX switch.

The Ericsson ROF 131 4309/2 (R3B) is a TRU3 plug-in circuit board for the Ericsson MD110 digital PABX switch. It carries the Ericsson-standard ROF part number format used across the MD110 card range, with the /2 suffix and R3B revision marking identifying this specific board build.

The TRU3 board is one of the family of function-specific cards that slot into an MD110 magazine alongside units such as the DSU, LSU and LPU boards, each handling a defined role within the switch’s modular architecture. As with other MD110 line cards, it is a field-replaceable unit intended for direct swap-in against a matching part number and revision on an existing installation.

It’s a good match for organisations maintaining an existing Ericsson MD110 estate who need matching hardware for expansion, redundancy or like-for-like replacement. Tech-Star is UK-based and ships worldwide. Get in touch to confirm compatibility with your MD110 configuration.

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

Compatible with the same platform

Frequently asked questions

Is the Ericsson ROF 131 4309/2 (R3B) refurbished or new?
Tech-Star supplies both new and refurbished Ericsson ROF 131 4309/2 (R3B). Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the Ericsson ROF 131 4309/2 (R3B)?
Refurbished Ericsson ROF 131 4309/2 (R3B) 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 ROF 131 4309/2 (R3B)?
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 ROF 131 4309/2 (R3B) 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 ROF 131 4309/2 (R3B) 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 FeaturesTRU3 designation; MD110 magazine plug-in card; R3B revision
ApplicationsMD110 switch expansion; like-for-like card replacement; spares for existing MD110 estates
CompatibilityEricsson MD110 digital PABX; MD110 magazine slot; matching ROF 131 4309 part family
SpecificationsPart number ROF 131 4309/2; TRU3 board type; revision R3B
PlatformEricsson MD110
ManufacturerEricsson

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