En Alcatel 7300 ASAM (Advanced Services Access Manager) in its ATM A‑7300 XD configuration serves as a high-performance DSL subscriber access platform. Designed for large-scale broadband service delivery, it connects end users over copper loops using DSL technology—such as ADSL, ADSL2+, G.shdsl, and VDSL—while leveraging ATM switching for efficient aggregation.
Built for both flexibility and density, the XD version supports deployment in service-provider central offices and remote nodes. It interfaces with the core network via STM‑1, E3, or E1 uplinks, and supports aggregated architectures—connecting subtending modules such as remote ASAMs or mini‑RAMs back to the main chassis.
This carrier-class system delivers end-user services across a modular ATM switching fabric, supporting QoS features including CBR, VBR, UBR, UBR+, and GFR to enforce subscriber-level traffic management. In addition, it enables advanced broadband services—including IP multicast, MPLS interworking, IP VPNs, and IPTV content delivery.
Built to meet stringent performance and reliability standards, the A‑7300 XD is NEBS Level 3 and UL certified and supports redundant power and controller configurations. It is an evolution of the 7300 ASAM family, succeeding earlier HD and UD variants, and is suitable for both legacy broadband deployments and transitional architectures toward IP-based aggregation.
High-Density DSL Access
Supports thousands of DSL subscriber lines per node, offering scalable deployment for large broadband access networks.
Multi-DSL Technology Support
Compatible with ADSL, ADSL2+, G.shdsl, and VDSL technologies, enabling flexible broadband service offerings over existing copper infrastructure.
ATM-Based Aggregation
Utilizes an integrated ATM switching fabric to aggregate subscriber traffic efficiently, with support for various ATM traffic classes (CBR, VBR, UBR, UBR+, GFR).
Subscriber-Level QoS
Enables advanced Quality of Service controls on a per-user basis, allowing prioritization of voice, video, and data services.
Multiple Uplink Options
Supports STM-1, E3, and E1 interfaces for flexible integration with legacy core transport networks.
Subtending Architecture
Allows remote ASAM units or mini-RAM modules to connect back to the central A‑7300 XD chassis, reducing infrastructure costs while expanding reach.
Advanced Service Support
Supports IP multicast, MPLS interworking, IP VPNs, and other value-added services for residential and business subscribers.
Carrier-Grade Design
Fully NEBS Level 3 and UL compliant, with support for redundant controllers and power supplies to ensure high availability and network resilience.
Modular and Expandable
Hot-swappable line cards and controller modules allow for easy in-service upgrades and flexible capacity expansion.
Centralized Management
Compatible with CLI, SNMP, and Alcatel-Lucent management systems for provisioning, monitoring, and maintenance.
En Alcatel A‑7300 XD is a high-capacity, ATM-based DSL Access Multiplexer engineered for large-scale broadband service delivery. It supports a variety of DSL technologies, including ADSL, ADSL2, ADSL2+, G.shdsl, and VDSL, enabling operators to deploy services across a range of subscriber distances and bandwidth requirements. Each shelf can house multiple line cards, with system scalability reaching thousands of subscriber lines per chassis.
This platform incorporates an integrated ATM switching fabric, capable of managing high volumes of traffic with per-port Quality of Service (QoS) enforcement. Supported ATM traffic classes include CBR (Constant Bit Rate), VBR (Variable Bit Rate), UBR (Unspecified Bit Rate), UBR+, and GFR (Guaranteed Frame Rate)—ensuring support for diverse service types such as VoIP, IPTV, and business VPNs.
The A‑7300 XD offers flexible uplink options, including STM-1 (OC-3), E3, and E1 interfaces, allowing seamless connectivity to ATM-based core networks. It also supports subtending architectures, meaning it can aggregate traffic from multiple remote ASAMs or mini-RAM modules. This helps providers expand coverage with minimal additional infrastructure.
The system is modular and supports hot-swappable line cards, along with optional redundant controller units and power supplies, ensuring continuous operation and in-service upgrade capabilities. The chassis is compatible with standard ETSI or ANSI rack configurations, and is suitable for both central office and remote node installations.
Designed for carrier-grade reliability, the A‑7300 XD is NEBS Level 3 and UL certified, capable of operating in a wide range of environmental conditions. It includes built-in test access, alarms, and monitoring features that enhance fault detection and minimize downtime.
Management and configuration are provided via Command Line Interface (CLI), SNMP, or centralized network management platforms from Alcatel-Lucent, supporting remote provisioning, diagnostics, and service monitoring.
| Period | Owner / Marketer | Notes |
|---|---|---|
| Early 2000s – 2006 | Alcatel | Developed and marketed the ASAM A‑7300 series—including XD, UD, and HD variants—as part of its ATM DSLAM family aimed at broadband DSL services. |
| 2006 – 2016 | Alcatel‑Lucent | Following the 2006 merger, continued support and firmware evolution under Alcatel‑Lucent branding, maintaining XD variant across releases. |
| 2016 – Present | Nokia | With Nokia’s acquisition of Alcatel‑Lucent in 2016, the A‑7300 XD entered Nokia’s legacy product portfolio, with ongoing documentation, parts, and support upheld under Nokia branding. |
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