The Alcatel Lucent CPU8 Board, identified by part number 3BA23258AB, is the central processing engine for the OmniPCX 4400 enterprise telephony platform. This board is designed to handle all call control, signaling, and resource management tasks within the PBX environment, ensuring reliable voice and data communications for medium to large organisations.
At the heart of the CPU8 Board lies a powerful dual-core processor, optimised for real-time telephony applications. It supports a high-capacity call processing database, enabling thousands of simultaneous calls with minimal latency. The board integrates dedicated digital signal processors (DSPs) for media handling, including voice compression, echo cancellation, and fax relay. With advanced memory management and error-correcting code (ECC) RAM, the CPU8 ensures data integrity and system stability even under heavy loads.
One of the key features of the CPU8 Board is its hot-swappable capability, allowing replacement without powering down the entire OmniPCX 4400 chassis. This minimises downtime and supports high-availability configurations. The board can be deployed in a redundant pair, with automatic failover and synchronization between active and standby units. This redundancy ensures uninterrupted service for critical business communications, making it suitable for call centres, financial institutions, and healthcare facilities.
The CPU8 Board provides multiple high-speed interfaces, including Ethernet ports for IP connectivity, serial management consoles, and dedicated buses to connect with other peripheral boards in the OmniPCX 4400 system. It supports both TDM and IP protocols, bridging traditional circuit-switched networks and modern VoIP infrastructures. The board also features a dedicated maintenance port for remote diagnostics and firmware upgrades, simplifying network administration.
This board runs the proprietary OmniPCX 4400 operating system, which offers a comprehensive suite of telephony features such as automatic call distribution, interactive voice response, unified messaging, and conferencing. It is fully compatible with Alcatel Lucent’s range of digital and IP phones, gateway modules, and application servers. The CPU8 Board also supports session initiation protocol (SIP) trunking and interoperability with third-party PBX systems through standard signalling protocols.
Designed for enterprise environments, the CPU8 Board delivers outstanding performance with a call completion rate exceeding 99.999% in redundant configurations. It can handle up to 10,000 busy hour call attempts (BHCA) and supports a wide range of codecs, including G.711, G.729, and G.722. The board’s thermal management and low power consumption make it suitable for dense equipment rooms, while its ruggedized construction ensures long-term reliability.
Alcatel Lucent provides comprehensive technical documentation and firmware updates for the CPU8 Board. The board includes built-in self-test (BIST) diagnostics and LED indicators for real-time status monitoring. Regular preventive maintenance is straightforward, with accessible components and clear labeling. In case of faults, the redundant architecture and hot-swap features allow for rapid service restoration without disrupting business operations.
The Alcatel Lucent CPU8 Board 3BA23258AB is an indispensable component for any OmniPCX 4400 deployment, offering unparalleled processing power, redundancy, and flexibility. Its robust design and extensive feature set make it a trusted choice for enterprises seeking a future-proof telephony infrastructure. Whether upgrading an existing system or building a new communication network, the CPU8 Board delivers the performance and reliability required by modern businesses.



