Name: Definity Expansion Interface Card
Brand: Avaya Lucent
Price: 39.95 USD
Availability: InStock

Avaya Lucent TN570B Definity Expansion Interface Card

The Avaya Lucent TN570B Definity Expansion Interface Card is a high-performance module designed to extend the capabilities of Avaya Definity telephone systems. Engineered for reliability and scalability, this card provides additional voice ports and ... Read More

price

$39.95

In Stock: 2
Manufacturer: Avaya Lucent
Model or Part: TN570B
Condition: Refurbished
Weight: 5.00lb

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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 Avaya Lucent TN570B Definity Expansion Interface Card is a high-performance module designed to extend the capabilities of Avaya Definity telephone systems. Engineered for reliability and scalability, this card provides additional voice ports and advanced signaling features that enable businesses to grow their communications infrastructure without replacing existing equipment.

Key Features

Supports up to 24 additional voice channels for increased call capacity
Compatible with all Avaya Definity system generations
Provides both analog and digital line interfaces
Built-in diagnostics and LED status indicators for easy troubleshooting
Hot-swap capable for minimal downtime during installation
Low power consumption to reduce operating costs

Technical Specifications

Form factor: 3U full height, 19 inch rack mount
Interface type: RJ-11 analog ports and RJ-45 digital ports
Maximum simultaneous calls: 24
Signaling: DTMF, E&M, loop start, ground start
Operating temperature: 0 to 40 deg Celsius
Power supply: 48 VDC, 1500 mA
Compliance: FCC Part 15, CE

Applications
The TN570B card is ideal for a wide range of environments where reliable voice communication is critical. It is commonly used in corporate headquarters, call centers, government agencies, and educational institutions to expand existing telephone system capacity, integrate legacy analog lines, and support growth plans. By adding this expansion interface, organizations can improve call handling efficiency, reduce bottlenecks during peak periods, and future-proof their telephony investments.