Viavi OCC-4056C APC DWDM Analyzer with SFP bay

VIAVI OCC-4056C APC DWDM Analyzer with SFP/SFP+ Bay

The VIAVI OCC-4056C DWDM Optical Channel Checker is a high-performance C-band DWDM analyzer designed for installation, commissioning, maintenance, and troubleshooting of DWDM networks. It provides optical-spectrum-analyzer-like wavelength and power measurement capabilities in a compact, field-interchangeable 4100 Series module.

Designed for use with compatible VIAVI T-BERD/MTS and OneAdvisor test platforms, the OCC-4056C measures individual DWDM channel wavelength and optical power while displaying the complete C-band spectrum in graphical and tabular formats.

This 2331/12 configuration features an SM/APC optical input with SC/APC mounted adapter and integrated dual SFP/SFP+ bays, allowing the module to accommodate up to two fixed SFP/SFP+ transceivers or one tunable laser/transceiver. SFP/SFP+ transceivers are not included.

Key Features

• Full C-band DWDM analysis from 1527.99 to 1567.95 nm

• Covers 191.20 to 196.20 THz, corresponding to DWDM channels Ch12 through Ch62

• Supports 50 GHz, 100 GHz, and 200 GHz DWDM channel spacing

• Measures up to 99 optical channels

• Fast full-band scanning in less than 4 seconds

• Measures individual channel wavelength, frequency, and optical power

• Optical power measurement range from −65 to +10 dBm

• Wavelength accuracy of ±0.060 nm (±7.5 GHz)

• Optical power absolute accuracy of ±0.6 dB

• Power linearity of ±0.1 dB

• Graphical spectral trace and tabular DWDM channel display

• Simultaneous graph and table display mode

• Wavelength and optical-power drift measurements

• Zoom and marker functions for detailed spectrum analysis

• Pass/Fail analysis for rapid network qualification

• Dual SFP/SFP+ bays for fixed or tunable DWDM optics

• Can accommodate up to two SFP/SFP+ transceivers or one tunable laser

• Compact, field-interchangeable single-slot module

Applications

The OCC-4056C is designed for field testing and troubleshooting of wavelength-based optical networks, including:

• DWDM network installation and commissioning

• Metro and access network testing

• DWDM wavelength-route verification

• Fiber Deep and Remote-PHY deployments

• C-RAN and 5G optical infrastructure

• Verification of forward and return paths through DWDM MUX/DEMUX equipment

• DWDM transmitter and source verification

• Spectral and wavelength-drift testing

• Optical power drift measurements

• DWDM network maintenance and troubleshooting

• Performance verification in metro access networks

DWDM Spectral Measurement Specifications

Optical Power Measurement Specifications

Optical Interface

SFP/SFP+ Bay

The integrated SFP/SFP+ interface expands the OCC-4056C beyond passive spectrum analysis. The module can accommodate:

• Up to two SFP/SFP+ transceivers, or

• One tunable laser/transceiver

With the appropriate VIAVI software option and compatible tunable SFP+, the module can tune MSA-compliant DWDM optics to selected ITU channels and use the transceiver as an optical source. This makes it possible to perform wavelength-route and end-to-end continuity verification using the same field test platform.

SFP/SFP+ transceivers and tunable optics are not included. Software licensing may be required for SFP functionality.

Measurement and Display Modes

Operating Modes

• DWDM

• Drift

Display Modes

• Spectral graph/trace with overview

• DWDM channel table

• Combined graph and table

Measured Parameters

• DWDM channel number

• Optical power

• Wavelength

• Wavelength/power drift

Physical and Environmental Specifications

Platform Compatibility

The OCC-4056C is a VIAVI 4100 Series module intended for compatible VIAVI field test platforms, including:

• T-BERD/MTS-2000 V2

• T-BERD/MTS-4000 V2

• T-BERD/MTS-5800

• OneAdvisor 800/1000 platforms, subject to platform configuration and software compatibility

A compatible VIAVI test platform is required for operation and is not included unless specifically stated.

Ordering Information

• Manufacturer: VIAVI Solutions

• Model: OCC-4056C

• VIAVI Part Number: 2331/12

• Fosco Connect SKU: 233112

• Description: OCC-4056C DWDM Optical Channel Checker with SFP/SFP+ Bays, C-band, APC

• Optical Interface: SM/APC

• Standard Adapter: SC/APC

• SFP/SFP+ Transceivers: Not included

• Host Test Platform: Not included unless specifically stated

Why Use the OCC-4056C?

Traditional optical spectrum analyzers can be bulky and expensive for routine field deployment. The OCC-4056C brings the DWDM measurements most commonly required by field technicians—including channel identification, wavelength, power, spectral display, and drift analysis—into the modular VIAVI field-test environment.

Its combination of 50 GHz DWDM resolution, <4-second C-band scans, wide optical power range, graphical spectrum display, and integrated SFP/SFP+ bays makes it particularly useful for technicians deploying or maintaining modern metro, access, Fiber Deep, Remote-PHY, C-RAN, and 5G optical networks.