Avaya 108551763 Definity / Communication Manager PBX Expansion Card

Avaya 108551763 Definity / Communication Manager PBX Expansion Card Image 1

Avaya 108551763 TN2793B 24-port analog line card for Definity and Communication Manager systems.

The Avaya TN2793B (part number 108551763) is a 24-port analog line card designed to provide connections for analogue telephone devices within Avaya telephony systems. This circuit pack enables the integration of traditional analogue endpoints such as single-line telephones, fax machines, and modems into digital PBX infrastructure.

The TN2793B is engineered for deployment in Avaya Definity and Communication Manager platforms, serving as an essential component for organisations requiring analogue connectivity alongside digital and IP communications. Each port supports standard analogue signalling, making it suitable for environments where legacy devices must be retained.

As a legacy component from the Definity/Communication Manager era, the TN2793B remains in demand for system maintenance, expansion of existing installations, and replacement of faulty units. Whilst newer IP-based solutions have succeeded this technology, many organisations continue to operate these proven platforms.

Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

From the same manufacturer

Compatible with the same platform

Frequently asked questions

Is the Avaya 108551763 refurbished or new?
Tech-Star supplies both new and refurbished Avaya 108551763. Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the Avaya 108551763?
Refurbished Avaya 108551763 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 Avaya 108551763?
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 Avaya 108551763 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 Avaya 108551763 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 Features24 analogue line ports; Single circuit pack design; Supports analogue endpoint connectivity; TN-series form factor
ApplicationsAnalogue telephone integration; Fax machine connectivity; Legacy device support in enterprise PBX environments
CompatibilityAvaya Definity systems; Avaya Communication Manager; G650 and G700 media gateways
Specifications24 analogue ports; TN-series circuit pack; Loop-start analogue signalling
PlatformAvaya Definity / Communication Manager
ManufacturerAvaya

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