Alcatel-Lucent TN1891 5ESS Protocol Handler for Voice PHV5

The Alcatel‑Lucent TN1891 (also known as PHV5, with commcode 108747064) is a protocol handler module for the 5ESS central office switching system. This card provides advanced voice protocol processing, call control, and signaling management for traditional telephony and ISDN services. It is a critical component for handling high‑volume voice traffic in central office environments.

Overview

The TN1891 PHV5 module is installed in the 5ESS switch frame, where it interfaces with the system's control bus and subscriber/trunk circuits. It processes signaling protocols such as SS7, ISDN, and MF, providing call setup, routing, and tear‑down functions. The module includes on‑board processors and memory for efficient protocol handling, ensuring high‑capacity call processing with low latency.

Key Features

• Advanced voice protocol processing (SS7, ISDN, MF)

• High‑capacity call handling

• Integrated signaling and call control

• Diagnostic and self‑test capabilities

• Hot‑swappable for maintenance

• Management via 5ESS maintenance system

Technical Specifications

• Protocol Support: SS7 (ISUP/TUP), ISDN PRI/BRI, MF signaling

• Call Capacity: Up to 64,000 BHCA (busy hour call attempts)

• Processor: Multi‑core RISC, ≥ 500 MHz

• Memory: 512 MB DRAM

• Power Consumption: 35 W typical

• Operating Temperature: 0°C to 45°C

• Dimensions: Standard 5ESS card form factor

Applications

This protocol handler is used in 5ESS switches to process voice calls, ISDN signaling, and SS7 interoffice trunk signaling, supporting residential and business telephony services.

Integration and Management

Managed through the 5ESS switch's maintenance and administration system, providing protocol configuration, call statistics, and fault diagnosis.

Installation and Maintenance

Install the card into the appropriate slot, connect system cables, and configure via software. Routine maintenance includes monitoring error logs and performing software upgrades.

Conclusion

The Alcatel‑Lucent TN1891 PHV5 protocol handler provides reliable, high‑capacity voice protocol processing, essential for maintaining robust telephony services in 5ESS central offices.