CHAPTER 2
Cisco NCS 540 Large Density Routers Overview
Cisco NCS 540 large density router is a 1RU, cost optimized platform supporting QSFP56-DD ports, that
offers customers 400G coherent transport solution. NCS 540 large density platform enhances the existing
NCS 540 portfolio offering high throughput and flexible 400/200/100/50/40/25/10/1GE interfaces.
For more information about its features and benefits, see the Cisco Network Convergence System 540 Large
Density Routers Datasheet
• Features, on page 9
• Specification, on page 10
• Interface Naming, on page 10
• Network Timing Interfaces, on page 11
• GNSS Receiver, on page 11
• External Alarm Inputs, on page 12
• Console, on page 13
• Online Insertion and Removal, on page 13
• Supported Transceiver Modules, on page 13
Features
The key features include:
• 1RU small form factor with depth 299mm
• Front-to-back airflow
• Environmental hardened, suitable for deployments in indoor or outdoor sealed cabinets
• Low latency forwarding, Class C compliant
• 400G/100G ZR/ZR+ optics support
• Integrated GNSS receiver
The Cisco N540-24Q8L2DD-SYS router has the following hardware features:
• 2 x 40G/100G/200G/400G QDD ports
• 8 x 1G/10G/25G/50G SFP56 ports
• 24 x 1G/10G/25G SFP28 ports
Cisco Network Convergence System 540 Large Density Routers Hardware Installation Guide
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