JDSU HA91C-19KSC1 50/125 Multimode Optical Attenuator with 10/90 Coupler and SC/HPC Front Bulkheads

JDSU HA91C-19KSC1 50/125 Multimode Optical Attenuator with 10/90 Coupler and SC/HPC Front Bulkheads

The JDSU HA91C-19KSC1 Optical Attenuator is a professional HA Series fiber optic attenuator configured for multimode optical test, telecom, laboratory, production, and photonics applications. This product description applies specifically to the HA91C-19KSC1 configuration and uses only the configuration details identified for this exact device.

The HA91C-19KSC1 configuration uses 50/125 multimode fiber, the 750 nm to 1700 nm wavelength range, a 10/90 coupler built-in option, low return loss, SC/HPC connector configuration, and front-panel bulkheads. These configuration details are important for buyers replacing an existing attenuator or matching a specific optical test setup where fiber type, wavelength range, connector style, port layout, built-in option, and return loss option must be correct.

Features and Benefits of the JDSU HA91C-19KSC1 Optical Attenuator

The JDSU HA91C-19KSC1 Optical Attenuator provides practical value for professional users who require a clearly defined multimode optical attenuation configuration for fiber optic measurement and test workflows.

• 50/125 multimode fiber configuration: Supports multimode optical test and measurement applications using 50/125 fiber.
• 750 nm to 1700 nm wavelength range: Provides wide wavelength coverage for multimode optical attenuation workflows.
• 10/90 coupler built-in option: Includes the 10/90 coupler option for optical signal monitoring, reference measurement, or split-path test setups.
• SC/HPC connector configuration: Uses SC/HPC connectors for compatible multimode optical patching and test setups.
• Front-panel bulkheads: Uses front-panel bulkhead connections for convenient direct access to the optical ports.
• Low return loss option: Uses the low return loss configuration for controlled optical test environments.
• Professional attenuation control: Suitable for optical signal level adjustment, receiver testing, fiber link simulation, and laboratory measurement workflows.

Advanced Features and Practical Applications

The JDSU HA91C-19KSC1 is intended for optical test environments where controlled multimode attenuation is required across a wide wavelength range. Optical attenuators are commonly used to reduce optical signal power to defined test levels during receiver sensitivity testing, optical link simulation, calibration procedures, system verification, and optical component characterization.

The 50/125 multimode fiber configuration supports common multimode test environments, while the SC/HPC connector configuration provides a defined connection interface for compatible patch cables, optical sources, optical meters, receivers, and other fiber optic test equipment. The front-panel bulkhead layout is practical for bench-top, rack-based, and laboratory systems where direct access to the optical ports is useful.

The built-in 10/90 coupler option can be useful in optical test setups where a defined portion of optical power must be tapped for monitoring, reference measurement, comparison, or auxiliary test functions while the main signal path remains available for the primary optical workflow. This can help reduce manual reconnection and support more repeatable measurement procedures in laboratory, production, or service environments.

Because HA Series optical attenuators can be configured in multiple ways, this listing should be used only for HA91C-19KSC1. Other HA Series model numbers may use different fiber types, wavelength ranges, built-in options, connector types, return loss options, or port layouts. Matching the exact configuration is important for maintaining compatibility with existing test procedures and optical setups.

Typical Applications

The JDSU HA91C-19KSC1 Optical Attenuator is suitable for professional applications such as:

• Multimode fiber optic attenuation control
• 50/125 multimode optical test setups
• Wide wavelength optical attenuation testing
• Optical signal monitoring with 10/90 coupler configuration
• Telecom optical network testing
• Optical receiver sensitivity testing
• Laboratory optical power adjustment
• Photonics component characterization
• Optical link simulation
• Production, engineering, service, and replacement equipment requirements

Product Overview

Brand	JDSU / JDS Uniphase
Model	HA91C-19KSC1
Product Category	Multimode Optical Attenuator
Fiber Type	50/125 multimode fiber
Connector Type	SC/HPC
Built-In Option	10/90 coupler
Primary Application	Controlled optical attenuation and signal monitoring for multimode fiber optic test systems
Suitable For	Fiber optic laboratories, telecom test environments, photonics systems, optical component testing, production test workflows, and service environments

 

HA91C-19KSC1 Configuration Details

Configuration Field	HA91C-19KSC1 Setting
Product Family	HA Optical Attenuator
Fiber Type Code	1
Fiber Type	50/125 multimode fiber
Wavelength Range Code	C
Wavelength Range	750 nm to 1700 nm
Built-In Option Code	9
Built-In Option	10/90 coupler
Return Loss Code	K
Return Loss Option	Low return loss
Connector Type Code	SC
Connector Type	SC/HPC
Port Type Code	1
Port Type	Bulkheads on front

 

Supported Optical Specifications

Note: Optical specifications are measured at 23 °C with a laser source and do not include connectors, switch, or coupler if installed. Specifications may vary by model configuration and installed options.

Specification	HA91C-19KSC1 Details
Wavelength Range	750 nm to 1700 nm
Fiber Type	50/125 multimode fiber
Built-In Option	10/90 coupler
Connector Type	SC/HPC
Port Type	Bulkheads on front
Return Loss Option	Low return loss configuration
Maximum Optical Input Power	200 mW
Recalibration Period	Recommended 2 years
Beam Block Attenuation	Greater than 110 dB
Beam Block Speed	Less than 20 ms

 

Electrical, Environmental, and Mechanical Specifications

Specification	Details
Input Voltage	100 V AC to 240 V AC, 50 Hz to 60 Hz
Power Consumption	80 VA maximum
Operating Temperature	0 °C to 40 °C
Storage Temperature	-40 °C to 60 °C
Humidity Range	95% up to 40 °C, decreasing 5% per °C from 40 °C to 60 °C
Dimensions	21.2 cm x 8.9 cm x 35.5 cm
Weight	4 kg

 

Optical Attenuator Applications

The JDSU HA91C-19KSC1 Optical Attenuator can be used in professional multimode optical test environments where controlled signal attenuation is required across the 750 nm to 1700 nm wavelength range. This type of attenuator is commonly used to set optical power levels, simulate fiber link loss, support receiver sensitivity testing, and help characterize optical components under repeatable test conditions.

With its 50/125 multimode fiber configuration, SC/HPC connector configuration, 10/90 coupler built-in option, low return loss option, and front-panel bulkhead layout, this configuration is intended for users who need the exact HA91C-19KSC1 setup. The built-in 10/90 coupler can support workflows where a tapped optical signal is required for monitoring, comparison, or reference measurement without changing the main optical path.

The SC/HPC connector interface should be matched to compatible SC/HPC patch cords and mating adapters. Proper fiber cleaning and inspection practices are important before connection because contaminated fiber interfaces can affect attenuation accuracy, insertion loss, return loss performance, and repeatability in optical measurement systems.

Buyer Considerations

The JDSU HA91C-19KSC1 is a configuration-specific optical attenuator. Buyers should confirm that the 50/125 multimode fiber type, 750 nm to 1700 nm wavelength range, SC/HPC connector configuration, 10/90 coupler built-in option, low return loss option, and front-panel bulkhead port layout match the intended optical test setup before purchase.

Buyers should also review the product condition, included accessories, connector condition, calibration or service notes, and any installed options before purchase. If the attenuator is being integrated into an existing rack, bench, or automated test station, the port layout, connector style, coupler requirement, and fiber compatibility should be confirmed against the current test configuration.

This description applies only to the HA91C-19KSC1 configuration. It should not be used for other HA Series attenuators with different model numbers, fiber types, wavelength ranges, connector types, port arrangements, return loss options, or built-in options.

Why Buy from AssetRelay?

AssetRelay supplies professional equipment and product solutions for fiber optic, telecom, laboratory, production, inspection, cleaning, RF/microwave, electronic test, and photonics applications. This product is listed to help technical buyers, procurement teams, engineers, installers, and service organizations source practical equipment for demanding professional environments.

Buyers sourcing this attenuator through AssetRelay should review available product photos, condition details, connector type, included accessories, and compatibility notes before purchase. For technical purchasing teams, confirming these details helps ensure that the attenuator matches the intended optical test setup and avoids incorrect configuration selection.

When available, buyers should review the provided specifications, compatibility details, condition notes, and accessories before purchase to confirm that the product meets their application requirements.