Alcatel-Lucent 3EH73084AEJD Gateway Driver Board GD-3 – Communication Interface
The Alcatel-Lucent 3EH73084AEJD Gateway Driver Board GD-3 is a versatile communication interface card that serves as the backbone for media gateway and session border controller platforms. It provides critical driver functions for converting signaling and media streams between circuit-switched (TDM) and packet-switched (IP) networks, ensuring interoperability in complex enterprise and service provider environments.
Functional Overview
The GD-3 driver board is designed to operate within Alcatel-Lucent's gateway chassis, where it interfaces with DSP resources, network processors, and backplane buses. It handles low-level protocol processing, including ISDN PRI, CAS, and SS7 signaling, as well as VoIP codec conversion and packetization. The board's high-density design allows up to 16 T1/E1 ports per card, making it suitable for large-scale voice trunking applications.
Part number 3EH73084AEJD represents a specific revision of the GD-3 board with enhanced memory and processing capacity. This revision supports advanced voice quality enhancements such as echo cancellation, jitter buffering, and packet loss concealment, delivering near-toll-quality audio over IP networks.
Technical Specifications
Product Name: Gateway Driver Board GD-3
Part Number: 3EH73084AEJD
Port Density: Up to 16 T1/E1 (software configurable)
Signaling Support: ISDN (Q.931), SS7 (MTP2/MTP3), CAS, SIP, H.323
Codecs: G.711, G.729, G.723, G.726, AMR-WB
Voice Features: G.168 echo cancellation, VAD/CNG, dynamic jitter buffer
Interfaces: H.100/H.110 CT bus, Ethernet management
Power Consumption: 40 W
Key Features
High-density TDM to IP media conversion
Flexible signaling gateway for multi-vendor environments
Integrated clock synchronization (PLL) for TDM networks
Hardware-based encryption for secure VoIP calls
Remote software upgrade and diagnostic support
Deployment Scenarios
The GD-3 board is widely deployed in Alcatel-Lucent's Media Gateway 9200 series and OmniPCX Enterprise gateways. It serves as the interface to the public switched telephone network (PSTN), enabling enterprises to connect legacy PBX systems to IP-based unified communications platforms. Service providers use this board to interconnect their circuit-switched core with packet-based IMS networks, facilitating smooth migration to all-IP architectures.
In contact center environments, the GD-3 supports high call volumes with minimal latency, ensuring a seamless customer experience. Its hot-swappable design allows card replacement without powering down the gateway, a critical factor for high-availability operations.
Integration and Management
The board is fully managed via Alcatel-Lucent's Element Management System (EMS) or via standard SNMP protocols. It reports real-time statistics on call counts, error rates, and DSP utilization. Configuration changes, such as routing tables and codec priorities, can be applied dynamically without service interruption.
Conclusion
The Alcatel-Lucent 3EH73084AEJD Gateway Driver Board GD-3 is an essential component for hybrid TDM/IP communication networks. Its robust feature set, high density, and carrier-grade reliability make it a preferred solution for enterprises and operators looking to bridge legacy and next-generation infrastructures.
