Gnubi EPX 100 / EPX 200 / EPX 400 / EPX 500 / EPX 600 /EPX 700

The Gnubi EPX series is a modular telecommunications testing platform comprising specialized signal generation, monitoring, and timing modules designed for SONET/SDH and DS1/DS3 network validation. Individual EPX modules integrate into Gnubi EPX16 chassis to deliver multi-channel testing, remote web-based control, and concurrent test session management across demanding datacom environments.

– Technical Specifications

EPX 100 — Clock Source Module
• Provides internal, BITS-timed, and external clock sources for EPX test systems
• External clock output for triggering external test devices
• BITS output for synchronizing multiple units from single BITS source
• Serves as timing reference for frequency counter measurements

EPX 200 — DS1 Signal Generator and Monitor
• Configurable as Dual Transceiver, Quad Transmitter, or Quad Receiver
• Add/Drop capability with simultaneous generation and monitoring of DS1 signals
• Forms 28-channel DS1 cross-connect when used with additional EPX16 modules
• Remote operation via web browser or custom software interface

EPX 400 — OC-48/STM-16 Transmitter
• OC-48 or STM-16 signal generation with selectable payload mappings
• Protocol switching between SONET and SDH without system power-down
• Compatible with all Gnubi chassis models

EPX 500 — OC-48/STM-16 Receiver
• Full-featured SONET/SDH payload monitoring and overhead capture
• Alarm history, error counts and ratios, live traffic monitoring
• SONET performance statistics, service disruption data, trace message capture
• Pointer event counting and K1/K2 byte value/message monitoring
• Supports both OC-48 and STM-16 signal monitoring with selectable payload configurations

EPX 600 & EPX 700
Specifications available in individual module documentation.

– Key Features

• Modular architecture supports incremental system expansion
• Web browser remote operation across all modules
• Multiple concurrent test sessions within single EPX16 chassis
• Protocol agility for SONET/SDH testing without downtime
• Comprehensive alarm and error insertion/monitoring capabilities

– Typical Applications

• DS1 signal generation, monitoring, and cross-connect testing
• OC-48/STM-16 payload validation and overhead analysis
• Timing reference distribution in multi-module test configurations
• Service disruption and performance anomaly detection
• Long-term traffic pattern and error ratio trending

– Compatibility & Integration

All modules integrate with Gnubi EPX16 chassis and form a cohesive platform for telecommunications and datacom testing. Individual modules operate under unified web-based control interface, enabling distributed test execution and centralized result aggregation.