Avaya 120A4 Channel Service Unit Module 120A4 – Refurbished High-Performance CSU for Avaya Networks
CONDITION: RE-MADE IN THE USA™ Refurbished
Part Number: 120A4
$29.00
Availability: In stock
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Product Description
Avaya 120A4 Channel Service Unit Module 120A4 is a professionally refurbished CSU module engineered for superior T1 and digital line management within Avaya network systems. Designed as an advanced iteration of the 120A-series, the 120A4 offers enhanced performance, expanded diagnostic capabilities, and improved reliability for critical communications infrastructure.
Each Avaya 120A4 Channel Service Unit Module is thoroughly inspected, cleaned, and tested to meet or exceed OEM specifications. The unit ensures precise signal conditioning, line integrity, and network protection—making it an ideal solution for businesses maintaining or upgrading Avaya-based environments.
Refurbished by experts and backed by RQ Communications’ quality assurance, the 120A4 module delivers enterprise-grade performance at a significantly reduced cost compared to new hardware. Perfect for organizations seeking to extend the lifespan of legacy systems while maintaining top-tier reliability and uptime.
Features
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Avaya 120A4 Channel Service Unit Module 120A4 – fully refurbished and tested
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Designed for dependable T1 and digital circuit connectivity
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Provides advanced diagnostics and line monitoring
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Integrates seamlessly with Avaya network systems and media gateways
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Compact and durable construction for easy rack installation
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Certified to OEM standards and backed by RQ Communications warranty
Q & A Section
Q: What is the function of the Avaya 120A4 Channel Service Unit Module?
A: It provides digital line conditioning, protection, and diagnostics for T1 and similar circuits, ensuring stable communication between Avaya systems and carrier networks.
Q: Is this module compatible with previous Avaya 120A-series units?
A: Yes. The 120A4 maintains backward compatibility while offering enhanced monitoring and reliability.
Q: Has this Avaya 120A4 unit been refurbished?
A: Yes. Each unit is professionally refurbished, tested, and certified to ensure OEM-level performance.
Q: Does it include a warranty?
A: All refurbished Avaya modules from RQ Communications include a limited warranty covering performance and reliability.
Q: Can I order multiple units for deployment or backup?
A: Yes, bulk and enterprise orders are available. Contact our sales team for volume discounts.