Cisco GSR16/320-CSC GSR Clock and Scheduler Card

Overview
The Cisco GSR16/320-CSC GSR Clock and Scheduler Card provides precise timing and scheduling capabilities for Cisco GSR 16000 and 32000 series routers. Designed for high-performance carrier and service provider networks, this card ensures synchronization across packet and circuit-switched services, enabling seamless integration of voice, video, and data traffic. Its robust architecture delivers reliable timing sources, low jitter, and flexible configuration options to meet demanding network timing requirements.

Key Features

• Supports multiple timing sources including GPS, IRIG-B, and NTP for flexible network synchronization
• Provides high-precision clock distribution with jitter less than 10 nanoseconds
• Redundant power and hot-swap capability for uninterrupted operation
• Scalable design that fits both GSR 16000 and 32000 chassis
• Integrated scheduler engine for deterministic packet forwarding and traffic shaping
• Simple CLI and SNMP management interfaces for easy provisioning and monitoring

Technical Specifications

• Form factor: 2RU card for GSR 16000/32000 chassis
• Supported timing inputs: GPS (1 PPS), IRIG-B (1 PPS), NTP (IPv4/IPv6)
• Output timing: 1 PPS and 10 MHz reference signals
• Jitter: < 10 nanoseconds (peak to peak)
• Temperature operating range: 0 to 45 degrees Celsius
• Power consumption: 45 watts typical
• Interfaces: 2 x 10/100/1000 Ethernet ports for management and timing distribution
• Compliance: FCC Part 15, CE, RoHS

Applications

• Carrier Ethernet networks requiring precise timing for QoS and traffic engineering
• Voice over IP and video conferencing platforms that depend on low jitter synchronization
• Mobile backhaul and fronthaul where timing alignment is critical for LTE and 5G deployments
• Financial trading networks that need sub-microsecond timestamp accuracy
• Broadcast and media distribution systems that synchronize audio and video streams
• Any service provider environment that demands reliable clock redundancy and deterministic scheduling