
Avaya TN2224CP 2-wire digital line circuit pack for DEFINITY and Communication Manager systems.
The Avaya TN2224CP is a 2-wire digital line circuit pack designed to provide connectivity for digital telephone sets and endpoints within Avaya’s legacy PBX infrastructure. This card enables the connection of digital stations to the system, supporting voice communications across enterprise telephony deployments.
The TN2224CP is designed for use with Avaya DEFINITY and Communication Manager platforms, serving as a station interface module within the system’s expansion architecture. It provides the necessary line circuitry to support 2-wire digital connections to compatible Avaya digital telephones.
As a legacy product from the DEFINITY/Avaya Communication Manager era, the TN2224CP remains relevant for organisations maintaining established Avaya PBX infrastructure. This circuit pack is commonly sought for system expansion, maintenance spares, or replacement purposes in environments where the existing digital telephony investment continues to serve operational requirements.
Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

| Platform | Avaya G450 Media Gateway |
|---|---|
| Manufacturer | Avaya |

| Platform | Avaya Communication Manager |
|---|---|
| Manufacturer | Avaya |

| Platform | Avaya Definity |
|---|---|
| Manufacturer | Avaya |

| Platform | Avaya Definity / Communication Manager |
|---|---|
| Manufacturer | Avaya |

| Platform | 9600 Series IP Deskphones |
|---|---|
| Manufacturer | Avaya |

| Platform | IP Office 500 |
|---|---|
| Manufacturer | Avaya |

| Platform | DEFINITY / Communication Manager |
|---|---|
| Manufacturer | Avaya |
| Key Features | 2-wire digital line interface; Supports digital station connectivity; Slot-based circuit pack design |
|---|---|
| Applications | Enterprise PBX telephony; Digital station deployment; Legacy Avaya system maintenance |
| Compatibility | Avaya DEFINITY systems; Avaya Communication Manager; Avaya digital telephone sets |
| Specifications | 2-wire digital interface; TN-series circuit pack form factor |
| Platform | DEFINITY / Communication Manager |
| Manufacturer | Avaya |
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