Alcatel 8770 REDUNDANCY-50 PERCENT SYTEM VALUE

In a busy telecom central office, network engineers rely on the Alcatel 8770 Redundancy-50 Percent System Value to keep broadband services running without interruption. This modular DSLAM chassis provides a 50% redundancy level for critical components like power supplies and control modules, ensuring high availability for ADSL, ADSL2, ADSL2+, and VDSL2 subscriber lines. With support for up to 192 VDSL2 ports and a 200 Gbps backplane, it handles dense aggregation while maintaining QoS and security.

Key specifications

• Product type: Digital Subscriber Line Access Multiplexer (DSLAM)
• System architecture: Modular, chassis-based
• Redundancy level: 50% (power supplies, control modules)
• Supported DSL technologies: ADSL, ADSL2, ADSL2+, VDSL2
• Maximum DSL ports: Up to 192 VDSL2 ports per chassis
• Uplink interfaces: Gigabit Ethernet, 10 Gigabit Ethernet, STM-1/OC-3
• Backplane capacity: Up to 200 Gbps
• Control card redundancy: Yes (1+1)
• Power supply redundancy: Yes (N+1)
• Management interfaces: CLI (console), SNMP, Web GUI
• Power input: AC (100-240V) or DC (-48V)
• Mounting type: 19-inch rack-mountable
• Operating temperature: -5°C to 45°C (23°F to 113°F)
• Humidity range: 5% to 95% non-condensing
• Service support: Broadband data, voice (POTS), IPTV
• Quality of Service: Yes (traffic shaping, policing, prioritization)
• Security features: ACLs, RADIUS/TACACS+ authentication
• Cooling: Active (fan-based)
• Compliance: ETSI, CE, RoHS

Why choose it

The 50% redundancy configuration balances cost and reliability, making it ideal for operators who need high availability without full duplication. Its modular design allows incremental capacity growth, and support for multiple DSL technologies ensures compatibility with existing copper infrastructure. Robust management options simplify operations.

Ideal use cases

• Telecom central offices and data centers requiring reliable broadband aggregation
• Service providers offering triple-play services (data, voice, IPTV) over copper
• Network operators upgrading from ADSL to VDSL2 without replacing the chassis
• Environments where partial redundancy meets uptime requirements

Good to know

This system is a core component of Alcatel's broadband access portfolio, designed for carrier-grade performance. It supports both AC and DC power inputs for flexible deployment. Active cooling ensures stable operation within the specified temperature range. Compliance with ETSI, CE, and RoHS standards guarantees regulatory adherence.