Description
Technical Specifications
- Product Model: PathTrak CPU-5500
- Brand: PathTrak (commonly deployed within VIAVI / JDSU network monitoring platforms)
- Warranty: One Year
- Input Voltage: 90–132 VAC / 180–246 VAC, 47–63 Hz auto-ranging
- Operating Temperature: 0°C to +50°C
- Storage Temperature: -20°C to +70°C
- Response Time: Real-time monitoring data processing
- Protection Class: Industrial rack-mounted electronic module
- Accuracy Class: Dependent on connected monitoring modules and spectrum analysis units
- Output Frequency: Supports broadband RF monitoring systems up to GHz ranges through connected modules
- Rated Current Range: System power supply dependent
- Communication Interface: Gigabit Ethernet, RS-232 serial ports, parallel port
- Supported Protocols: TCP/IP networking for system controller communication
- Overload Capacity: Designed for continuous 24/7 monitoring operations
- Processor Type: Embedded Motorola PowerPC single-board computer
- Data Storage: Approx. 2 GB onboard storage
- Dimensions: 19-inch rack mount system module (approx. 4U height)
Product Overview
The PathTrak CPU-5500 is a processing and communication module used within the PathTrak return-path monitoring platform for cable network performance management. It serves as the central computing component inside a PathTrak controller chassis, handling system control, monitoring data processing, and communication between field monitoring modules and the master management server.
Cable television and broadband networks rely on stable upstream (return-path) signals to deliver internet services, VoIP, and interactive applications. Interference, ingress noise, or signal distortion within the return path can degrade network performance and affect large numbers of subscribers. The CPU module processes measurement data collected by spectrum monitoring cards and analyzers, allowing network operators to detect anomalies quickly and identify the source of signal degradation.
Within a PathTrak monitoring system, the processor provides local data analysis, storage, and communication capabilities. Even if the LAN connection is temporarily unavailable, the system continues monitoring and storing measurements locally until communication with the central server is restored. This architecture enables scalable monitoring for large HFC cable networks and ensures continuous visibility of upstream network health.
Key Functions
Central Processing and Data Analysis
The module contains an embedded processor responsible for collecting monitoring data from installed spectrum or monitoring cards. It performs local analysis and prepares measurement results for transmission to the network management server.
Communication Gateway for Monitoring Systems
The processor acts as the communication interface between monitoring modules and the master system controller. Through Ethernet and serial connections, it transfers alarms, system status, and performance data to centralized monitoring software.
Local Data Storage and Autonomous Operation
The module includes onboard memory used for storing measurement data and system logs. Because processing occurs locally within the controller, the monitoring system continues operating independently even during temporary network outages.
Modular System Integration
Designed for modular controller platforms, the processor works alongside multiple monitoring modules installed in the same chassis. Operators can expand monitoring capacity by adding additional modules without replacing the central processing unit.
Application Scenarios
Cable Television Network Monitoring
Operators of HFC cable networks use the processor module within PathTrak systems to continuously monitor upstream spectrum conditions and detect interference sources that affect broadband services.
Broadband Infrastructure Maintenance
Service providers rely on real-time return-path monitoring to locate ingress noise, faulty amplifiers, or damaged cables. The processing module aggregates monitoring data and delivers actionable insights for maintenance teams.
Large-Scale Network Operations Centers
In centralized NOCs, data collected from multiple monitoring nodes is analyzed to ensure consistent network performance across large geographic service areas. The module supports scalable monitoring architectures.
RF Spectrum Troubleshooting Systems
Technicians performing advanced RF diagnostics use PathTrak monitoring infrastructure to analyze spectrum anomalies, signal distortion, and QAM performance within cable networks. The processor module enables the processing and reporting required for these tasks.
