Alcatel-Lucent IOM2-20G

Core Function Features

1. Native 20Gbps wire-speed packet forwarding based on dCEF720 dedicated forwarding chip architecture
2. Support hot-swap without system power-off; online card replacement without interrupting service traffic
3. Multi-type MDA expansion compatibility: Gigabit Ethernet, 10G SFP+, POS, ATM channelized interface adapters
4. Full-service protocol stack support: MPLS L2/L3 VPN, VXLAN, EVPN, BGP, OSPF, IS-IS, ATM FR PPP encapsulation
5. Built-in hardware traffic shaping, QoS scheduling, hierarchical queue congestion control
6. Real-time traffic statistics, packet loss, delay and jitter monitoring for each physical port
7. Hardware-based fault detection: optical power loss, port link failure, MDA adapter disconnection automatic alarm
8. Redundant power and clock domain design, support dual-router chassis backup deployment
9. RoHS 6/6 environmental compliance, low power consumption dynamic power management

Technical Performance Parameters

• Total Forwarding Bandwidth: 20Gbps full duplex wire-speed
• Supported MDA Slot Count: 4 MDA expansion slots on single IOM2-20G card
• Optical Interface Support: SFP/SFP+ transceivers, wavelength options 1310nm / 1550nm, transmission distance 2km~120km
• Operating Power Supply: -48VDC telecom standard power input
• Operating Temperature Range: -5°C ~ +55°C
• Storage Temperature: -40°C ~ +85°C
• Humidity Tolerance: 5%–90% RH non-condensing
• MTBF (Mean Time Between Failure): ≥ 800,000 hours

Material & Structural Characteristics

• Main Circuit Board: Military-grade multi-layer PCB with tin-lead free plating, anti-electromagnetic interference copper shielding layer
• Front Panel: Hardened black aluminum alloy, with port status LED indicators, MDA slot lock levers, ESD discharge contact strips
• Chassis Form Factor: Standard router chassis full-height line card, fixed by front panel quick-lock screws
• Surface Treatment: Anti-corrosion anodizing aluminum panel, dust-proof ventilation grille

Working Principle

1. Inbound optical/electrical service traffic enters MDA adapter for photoelectric conversion and physical layer signal processing
2. Traffic data transfers to IOM2-20G dedicated forwarding chip for layer 2/layer 3 route lookup, QoS queue scheduling and MPLS label encapsulation
3. Forwarded data packets output through designated MDA port to peer network equipment
4. On-board monitoring circuit collects port optical power, traffic volume and hardware state data, uploads to router main control card via internal backplane bus
5. When hardware fault occurs, automatic traffic switchover to redundant backup line card to realize service non-interruption

Installation Requirements

1. Install inside Alcatel-Lucent 7750 SR series dedicated router chassis, use factory-matched MDA adapters only
2. Connect chassis to dedicated telecom room -48VDC regulated power supply with dual power input redundancy
3. Deploy chassis in air-conditioned telecom cabinet with ambient temperature maintained at 18–25°C
4. Optical fiber cables must adopt bend-resistant single-mode fiber, minimum bending radius ≥30mm
5. Ground chassis frame to dedicated telecom protective earth busbar with 6mm² copper cable

Application Scenarios

• Operator metropolitan area core router service expansion
• Interconnection between multi-region data centers and cloud service platforms
• Enterprise large-scale MPLS VPN backbone access aggregation
• Telecom carrier 5G core network edge traffic forwarding
• Financial industry private network high-speed inter-site transmission

Operation & Maintenance Notes

1. Complete configuration backup before hot-swapping line cards to avoid service configuration loss
2. Wear anti-static wristband during disassembly and assembly to prevent ESD damage to PCB chips
3. Regularly clean optical port dust with professional fiber cleaning sticks to avoid signal attenuation
4. Do not plug/unplug MDA adapters frequently; each plug-unplug operation has limited service life
5. Monitor optical transceiver temperature and optical power value weekly to predict fiber aging failure