OTDR Test Module Upgrade Version Inventory

The latest OTDR module upgrades include RXT-4113+ for VeEX platforms and SmartOTDR software updates, supporting CWDM/DWDM testing with enhanced features and firmware compatibility requirements.

VeEX RXT-41xx/4113+ OTDR Modules

The RXT-4113+ is a second-generation xWDM OTDR module that consolidates CWDM, DWDM, and hybrid CWDM/DWDM testing into a single module, replacing previous RXT-4111, RXT-4112, and RXT-4113 modules . Key features include:

• Wavelength support: CWDM (8/10/18 channels) and DWDM (C-band, 1527.99–1563.86 nm) with 50, 100, or 200 GHz channel spacing .
• High resolution: 3 cm resolution and up to 500,000 data points for detailed fiber characterization .
• User interface improvements: Unified UI allows switching between CWDM and DWDM without swapping modules or loading new software .
• Firmware upgrade: Use VeExpress or the VeEX website to download full or delta software updates. Firmware updates (M.Upgrade) require the RXT-1200 platform version 05.00.0008 or higher. Older 02.xx.xxxx versions must first be upgraded to the last 04.xx.xxxx version before installing 05.xx.xxxx .

VIAVI SmartOTDR and T-BERD/MTS Modules

SmartOTDR software can be deployed via StrataSync, USB, or direct instrument upgrade . The T-BERD/MTS-2000 series supports:

• Expert OTDR mode for CWDM fiber certification.
• Bidirectional loopback testing and on-board report generation.
• Software updates via USB or network connection, ensuring compatibility with the latest OTDR modules .

Cisco NCS 1014 OTDR Modules

The ONS-QSFP-OTDR pluggable module integrates with the NCS1014 chassis and EDFA2 line card, providing:

• Real-time measurements of loss, back reflection, and fiber attenuation.
• Automatic and manual scan modes with SOR file storage for trace analysis.
• Enhanced OTDR scan process with negotiation to prevent simultaneous scans on the same fiber .

Upgrade and Inventory Considerations

• Always verify platform version compatibility before upgrading OTDR modules.
• Use official tools like VeExpress or vendor-provided software for firmware updates.
• Maintain an inventory of modules by type (CWDM, DWDM, hybrid) and ensure firmware versions are current to leverage new features and improved measurement accuracy.
• Avoid downgrading software unless instructed by support personnel . By maintaining updated OTDR modules and software, users can ensure accurate fiber characterization, efficient network testing, and compatibility with modern CWDM/DWDM optical networks.