
Avaya 700021371 TN2464BP DS1 Interface Card for DEFINITY systems.
The Avaya 700021371, also known as the TN2464BP, is a DS1 Interface circuit pack designed for Avaya DEFINITY PBX systems. This card provides 24-channel (T1) or 32-channel (E1) digital trunk connectivity, enabling integration with public and private telecommunications networks via DS1 signalling standards.
The TN2464BP is used within Avaya DEFINITY and Communication Manager environments to connect the PBX to external carrier services, inter-PBX tie lines, or channel banks. It supports digital trunk facilities essential for voice traffic routing in medium to large enterprise telephony deployments.
This is a legacy product associated with the Avaya DEFINITY platform, which has been superseded by newer Avaya Aura and IP-based solutions. However, the TN2464BP remains in demand for maintaining and expanding existing DEFINITY installations where digital trunk interfaces are required.
Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

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

| Platform | Avaya 655A Series |
|---|---|
| Manufacturer | Avaya |

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

| Platform | Avaya 1600 Series |
|---|---|
| Manufacturer | Avaya |

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

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

| Platform | Avaya Definity |
|---|---|
| Manufacturer | Avaya |
| Key Features | 24-channel T1 or 32-channel E1 support; DS1 digital trunk interface; Circuit pack form factor; Hot-swappable design |
|---|---|
| Applications | Enterprise PBX trunk connectivity; Carrier network integration; Inter-PBX tie line connections |
| Compatibility | Avaya DEFINITY G3 series; Avaya Communication Manager; Avaya S8300/S8700 media servers |
| Specifications | DS1 interface; 24 channels (T1) or 32 channels (E1); TN2464BP circuit pack |
| Platform | Avaya DEFINITY |
| Manufacturer | Avaya |
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