JDS Uniphase SCG2D10071+27XF000FA Single-Mode Ganged Programmable Optical Switch with FC/APC Connectors

JDS Uniphase SCG2D10071+27XF000FA Ganged Programmable Optical Switch

The JDS Uniphase SCG2D10071+27XF000FA is a programmable ganged-input fiber optic switch designed for automated laboratory, manufacturing, telecommunications, and optical system testing. It belongs to the JDS Uniphase SCG Series, a family of rack-mount optical switches developed to reconfigure multiple optical paths while maintaining low insertion loss and repeatable channel alignment.

This configuration uses 9/125 µm single-mode fiber and operates across the documented wavelength range from 1270 nm to 1670 nm. The broad optical range supports compatible applications near common telecommunications wavelengths, including 1310 nm, 1490 nm, 1550 nm, and 1625 nm.

The FA connector code identifies FC/APC optical interfaces, while the 000 cable code indicates a bulkhead configuration rather than optical pigtails. FC/APC bulkheads provide angled physical-contact connections for compatible single-mode patch cords and help reduce reflection at the external optical interfaces.

The D designation identifies a ganged switching configuration. In D-mode operation, a bank of optical inputs is aligned simultaneously with a corresponding bank of outputs. This architecture allows several related optical paths to be reconfigured with one switch command, reducing the number of separate switching elements required in an automated test system.

Features and Benefits of the JDS Uniphase SCG2D10071+27XF000FA

• SCG Series ganged switching: Reconfigures a group of related optical paths through one programmable switch instrument.
• D-configuration operation: Provides simultaneous alignment of a bank of optical inputs with corresponding output paths.
• 9/125 µm single-mode fiber: Supports compatible telecommunications, laboratory, production, and photonics equipment.
• Broad wavelength coverage: Operates from 1270 nm to 1670 nm for supported single-mode applications.
• FC/APC bulkhead connectors: Provides angled physical-contact interfaces for secure, low-reflection optical connections.
• Expanded-beam lens technology: Uses collimating lenses and precision alignment to support low insertion loss and consistent optical coupling.
• Internal temperature control: Stabilizes the switching mechanism for improved operational performance.
• Low insertion loss: The documented SCG D configuration provides 0.5 dB typical internal insertion loss.
• High return loss: Provides greater than 65 dB typical internal return loss for supported single-mode configurations.
• Low polarization-dependent loss: Supports controlled single-mode routing with 0.02 dB typical PDL for the applicable D configuration.
• Repeatable switching: Supports automated measurements requiring consistent path selection across repeated cycles.
• High optical isolation: Provides maximum single-mode crosstalk of -80 dB.
• Local and remote operation: Supports front-panel controls, GPIB, and serial RS-232 interfaces.
• Professional test integration: Suitable for multi-path component testing, system verification, quality assurance, and research.

SCG Ganged-Input Switching Architecture

The SCG Series is designed for applications that require several optical paths to move together in a controlled sequence. Instead of using multiple independent switch instruments, one SCG unit can align a bank of optical inputs with a corresponding group of outputs.

Ganged switching is useful when related optical paths must maintain a defined position relative to one another. A single command can move the complete bank to another supported channel group, simplifying automated test sequencing and optical system control.

This architecture can reduce equipment count and test-system complexity compared with an arrangement constructed from several individual 1xN switches. It also helps maintain consistent switching timing across the associated optical paths.

D-Configuration Operation

The D configuration provides simultaneous connections between a bank of input fibers and corresponding output fibers. Each selected state aligns the inputs with a defined group of output channels.

This configuration is useful for mass reconfiguration of optical paths, multi-fiber component testing, transmitter and receiver routing, parallel optical measurements, and applications in which several signals must move together.

The exact number of input channels, output channels, switch states, and physical optical paths should be confirmed from the front-panel labels and verified through functional path mapping. The supplied model string appears to use a compact or legacy configuration format, and the complete physical port arrangement should be documented before automated operation.

Configuration Verification for the Supplied Model

The supplied model is identified as SCG2D10071+27XF000FA. The configuration clearly identifies an SCG Series D-configuration switch with 9/125 µm fiber, standard return-loss performance, a 1270 nm to 1670 nm wavelength range, bulkhead connections, and FC/APC connectors.

The channel-count portion of the supplied model should be compared with the instrument’s physical port labels. Standard SCG D configurations require the output count to be divisible by the input count so that the optical paths can be arranged into complete ganged states.

If the equipment label represents two inputs and seven outputs, the arrangement may be a specialized configuration or the model may have been transcribed without a digit or separator. The product listing should use the actual port count visible on the instrument and a verified optical path map rather than assigning an unsupported matrix size.

Expanded-Beam Lens Technology

The JDS Uniphase SCG Series uses expanded-beam lens technology to establish optical connections. Collimating lenses direct the light while a precision stepper motor positions the internal optical channels.

This design supports low insertion loss and repeatable switching without requiring operators to reconnect external optical cables whenever the optical state changes. The expanded optical beam also helps maintain controlled coupling between the aligned fiber paths.

Internal temperature control stabilizes the switching mechanism and helps reduce changes in optical alignment during extended laboratory or production operation.

The switch is passive within the selected optical paths. It does not generate, amplify, detect, modulate, regenerate, or convert the transmitted optical signals.

9/125 µm Single-Mode Fiber

The fiber code 7 identifies 9/125 µm single-mode fiber. The switch should be used with compatible single-mode optical sources, patch cords, receivers, detectors, components, and test instruments.

Maintaining compatible single-mode fiber throughout the system helps preserve the intended optical coupling and measurement conditions. Multimode patch cords should not be substituted in a precision single-mode setup.

External fibers should be routed with a suitable bend radius and protected from tension, crushing, twisting, and repeated movement. Mechanical fiber stress can affect insertion loss and polarization conditions.

1270 nm to 1670 nm Wavelength Range

The F wavelength code identifies operation from 1270 nm to 1670 nm. This range covers several important telecommunications and optical test wavelengths.

The switch can route compatible optical signals near 1310 nm, 1490 nm, 1550 nm, and 1625 nm, along with other wavelengths within the supported range. Sources, receivers, patch cords, and devices under test must also support the selected wavelength.

Each optical path should be referenced at the wavelength used for the final measurement. Path loss, connector behavior, polarization performance, and external component response can vary with wavelength.

FC/APC Bulkhead Optical Interfaces

The FA connector code identifies FC/APC interfaces. The angled physical-contact ferrule directs reflected light away from the fiber core and supports low-reflection single-mode connections.

The cable code 000 indicates that a separate pigtail length is not applicable because the optical interfaces use bulkheads. The physical input and output port locations should be confirmed from the instrument.

FC/APC patch cords must be used with FC/APC bulkheads. FC/PC connectors should not be directly intermated with FC/APC interfaces because the angled and non-angled ferrule geometries are incompatible.

Every bulkhead and mating patch cord should be inspected and cleaned before connection. Contamination can increase insertion loss, reduce return loss, destabilize measurements, and damage both connector end faces.

Insertion Loss

The documented SCG D configuration provides 0.5 dB typical internal insertion loss and 1.0 dB maximum internal insertion loss. The published values exclude losses introduced by external connectors.

The complete test path may include the internal switch mechanism, FC/APC connector pairs, patch cords, adapters, sources, detectors, and devices under test. Each active optical route should be referenced when accurate insertion-loss measurements are required.

Channel-specific reference values help compensate for normal path-to-path differences and provide a more accurate basis for automated component measurements.

Return Loss

The X option identifies the standard return-loss configuration. Typical internal return loss for the documented single-mode D configuration is greater than 65 dB, with a specified minimum of 60 dB.

The return-loss specification excludes the contribution of external connectors. The complete system result depends on FC/APC connector condition, patch cords, adapters, fiber handling, source characteristics, and connected devices.

Clean FC/APC interfaces and compatible angled-contact cables are important when maintaining low reflected power throughout the optical system.

Polarization-Dependent Loss

Polarization-dependent loss for the documented single-mode D configuration is specified at 0.02 dB typical and 0.05 dB maximum.

Low PDL helps limit variations in transmitted optical power as the input state of polarization changes. This supports component qualification, amplifier testing, optical power measurements, and other applications sensitive to polarization-related uncertainty.

The external patch cords, connectors, adapters, couplers, and devices under test can add further polarization-dependent loss to the complete system.

Switching Repeatability and Stability

Typical sequential switching repeatability for the D configuration is ±0.005 dB, with a documented maximum of ±0.01 dB. Sequential switching represents movement through the supported states in their normal order.

Typical random switching repeatability is ±0.02 dB, with a documented maximum of ±0.04 dB. Random switching represents movement between states that are not necessarily adjacent.

Typical insertion-loss stability is ±0.03 dB, with a documented maximum of ±0.05 dB. The stability specification represents channel drift relative to a reference channel during a ±3 °C ambient-temperature variation over seven days.

The optical specifications apply after the switching system has stabilized for one hour under ambient room conditions.

Crosstalk and Optical Isolation

Maximum single-mode crosstalk is specified at -80 dB. This optical isolation helps reduce unwanted signal leakage from unselected paths into the active channels.

High isolation is useful when weak optical signals are routed near stronger sources or when the outputs are connected to sensitive receivers and detectors.

System-level isolation can also be influenced by external couplers, connectors, optical reflections, measurement-instrument limitations, and stray signals outside the switch.

Switching Speed

The SCG Series uses a documented first-channel switching time of 420 ms. Each additional channel traversed requires approximately 20 ms.

Total switching time depends on the distance between the current and requested states. Automated software should allow both the switching mechanism and connected measurement instruments to settle before acquiring data.

Maximum Optical Input Power

Maximum optical input power is specified at 300 mW. The output of connected lasers, amplified spontaneous emission sources, and optical amplifiers should be verified before connection.

The switch input rating does not define the safe input power of downstream equipment. Every optical detector, receiver, power meter, analyzer, and device under test must remain within its own specified optical power range.

Suitable external attenuation should be used whenever the source could exceed the safe operating limit of the switch or connected equipment.

Mechanical Operating Life

The SCG switching platform is rated for more than 10 million switching cycles. This supports repeated use in automated component testing, production screening, research, and optical system reconfiguration.

Actual operating life can depend on accumulated switching activity, channel-selection patterns, environmental conditions, storage, mechanical condition, and maintenance history.

Front-Panel, GPIB and RS-232 Control

The SCG switch can be operated locally using front-panel keys and a numeric keypad. Local control supports setup, path identification, troubleshooting, maintenance, and individual state selection.

GPIB and serial RS-232 interfaces support remote operation through compatible computers and automated test systems. Remote control can coordinate the switch with sources, attenuators, power meters, spectrum analyzers, receivers, and other optical instruments.

The platform also provides four open-collector drivers for compatible external switch modules, with a maximum sink current of 100 mA per supported driver.

Typical Applications

• Mass reconfiguration of optical paths
• Automated fiber optic component testing
• Multi-path optical signal routing
• Optical transmitter and receiver testing
• WDM and DWDM component characterization
• Optical amplifier evaluation
• Fiber cable and assembly testing
• Optical power measurement systems
• Telecommunications system verification
• Production and quality-control testing
• Laboratory research and development
• Computer-controlled optical test systems

Product Overview

Brand	JDS Uniphase
Model	SCG2D10071+27XF000FA
Product Series	SCG Series
Product Category	Ganged Programmable Fiber Optic Switch
Switching Configuration	D configuration for simultaneous optical path alignment
Fiber Type	9/125 µm single-mode fiber
Wavelength Range	1270 nm to 1670 nm
Connector Type	FC/APC
Connection Style	Optical bulkheads
Return-Loss Configuration	Standard
Remote Interfaces	GPIB and serial RS-232
Primary Application	Simultaneous reconfiguration of related single-mode optical paths

 

Model Configuration Breakdown

Part Number Element	Configuration
SCG	SCG Series ganged-input programmable optical switch
D	D configuration for simultaneous connection of a bank of optical paths
Fiber Code 7	9/125 µm single-mode fiber
Return-Loss Code X	Standard return-loss configuration
Wavelength Code F	1270 nm to 1670 nm
Cable Code 000	No pigtail cable length because the unit uses optical bulkheads
Connector Code FA	FC/APC optical connectors

 

Single-Mode D-Configuration Specifications

Specification	Typical	Documented Limit
Insertion Loss	0.5 dB	1.0 dB maximum, excluding connectors
Return Loss	Greater than 65 dB	60 dB minimum, excluding connectors
Polarization-Dependent Loss	0.02 dB	0.05 dB maximum
Insertion-Loss Stability	±0.03 dB	±0.05 dB maximum
Sequential Switching Repeatability	±0.005 dB	±0.01 dB maximum
Random Switching Repeatability	±0.02 dB	±0.04 dB maximum
Single-Mode Crosstalk	Not specified as a typical value	-80 dB maximum

 

Switching and Control Specifications

Specification	Details
Switching Technology	Expanded-beam lens alignment with precision stepper-motor positioning
First-Channel Switching Time	420 ms
Each Additional Channel	20 ms
Maximum Optical Input Power	300 mW
Switching Lifetime	More than 10 million cycles
Local Control	Front-panel keys and numeric keypad
Remote Control	GPIB and serial RS-232 interfaces
External Switch Drivers	Four open-collector drivers with a maximum 100 mA sink current

 

Physical, Electrical and Environmental Specifications

Specification	Details
Width	48 cm
Height	13 cm for the documented single-height enclosure
Depth	37 cm, excluding handles
Weight	Approximately 9 kg for the documented single-height enclosure
AC Input	100 V to 240 V AC, 50 Hz to 60 Hz
Maximum Power Consumption	100 VA
Operating Temperature	0 °C to 55 °C
Storage Temperature	-40 °C to 70 °C
Maximum Humidity	95% relative humidity from 0 °C to 55 °C, non-condensing
Required Optical Stabilization	One hour before documented optical measurements

 

Optical Path Mapping

The input channels, output channels, and available D-configuration states should be mapped before the switch is incorporated into an automated test system. This is particularly important because the supplied model string does not provide a clearly validated standard SCG channel relationship.

A compatible single-mode source can be connected to each input while calibrated optical power meters monitor the output ports as the switch moves through its available states.

The completed path map should identify every simultaneous connection, the corresponding input and output ports, inaccessible combinations, and the sequence used by the front-panel and remote-control interfaces.

The verified map should be retained for cable labeling, automation software, troubleshooting, performance testing, and future maintenance.

Measurement Setup and Referencing

The SCG switch, optical sources, and connected measurement instruments should stabilize for at least one hour before precision optical measurements are recorded.

Every active input-to-output route should be referenced at the wavelength used for the final measurement. Reference documentation should identify the switch state, input port, output port, source wavelength, source power, patch cords, connector condition, and optical power meter.

Reference measurements should be repeated whenever an optical connector is cleaned, replaced, disturbed, or reterminated. Changes to external patch cords, sources, detectors, or devices under test can also require new path references.

Connector Inspection and Cleaning

All FC/APC bulkheads and mating patch cords should be inspected before connection. Contaminated connector end faces should be cleaned using an approved fiber optic procedure and reinspected before mating.

Only matching FC/APC patch cords should be connected to the FC/APC bulkheads. FC/PC connectors should not be directly intermated with the installed angled-contact interfaces.

Protective caps should remain installed whenever ports are not in use. Dust caps should also be kept clean to prevent contamination from being transferred back to the optical connectors.

Comprehensive Functional and Performance Testing

The JDS Uniphase SCG2D10071+27XF000FA receives comprehensive functional and performance testing before shipment. Evaluation may include AC power operation, startup, display response, front-panel controls, numeric-keypad operation, D-configuration state selection, GPIB communication, RS-232 communication, and available external driver functions.

Optical testing may include confirmation of the physical input and output counts, complete path mapping, simultaneous D-configuration routing, continuity through accessible states, relative insertion-loss comparison, repeated switching, optical isolation, and operation at representative wavelengths within the supported 1270 nm to 1670 nm range.

The FC/APC bulkheads may be inspected for contamination, damaged threads, worn alignment sleeves, loose mounting, or missing protective caps. The controls, communication interfaces, AC inlet, enclosure, cooling openings, labels, and configuration markings may also be inspected.

The exact testing scope depends on the confirmed channel arrangement, available single-mode sources, calibrated optical power meters, return-loss measurement equipment, polarization measurement equipment, FC/APC reference cables, and communication accessories.

Calibration Before Shipment

When technically applicable and selected, the JDS Uniphase SCG2D10071+27XF000FA can be calibrated or performance-verified before shipment. Evaluation may include path mapping, insertion loss, return loss, polarization-dependent loss, switching repeatability, crosstalk, switching time, and insertion-loss stability.

Calibration documentation should identify the instrument model and serial number, switch state, input and output ports, source wavelength, optical power, FC/APC reference cables, test procedure, recorded measurements, and applicable uncertainty.

Buyers requiring formal calibration should specify the wavelengths, optical parameters, required switch states, channel coverage, certificate format, recorded results, and required measurement uncertainty before purchase.

Buyer Considerations

Buyers should verify the complete model label and physical port count before purchase. The supplied model identifies an SCG D-configuration switch with 9/125 µm single-mode fiber, standard return-loss performance, operation from 1270 nm to 1670 nm, bulkhead interfaces, and FC/APC connectors.

The exact ganged channel arrangement should be confirmed through front-panel labeling and optical path mapping. A standard matrix size should not be assigned unless the input count, output count, and D-configuration state sequence have been verified.

The product listing should identify whether FC/APC patch cords, protective caps, GPIB cables, RS-232 cables, rack hardware, software, manuals, test reports, calibration records, or other accessories are included.

Only the programmable optical switch and accessories specifically identified in the product listing should be considered included.

Why Buy from AssetRelay?

AssetRelay supplies professional equipment and product solutions for fiber optic, telecom, laboratory, production, optical testing, photonics, electronic testing, RF/microwave, inspection, cleaning, and technical research applications. The JDS Uniphase SCG2D10071+27XF000FA provides ganged single-mode optical routing for component manufacturers, telecommunications laboratories, production facilities, system integrators, universities, and research organizations.

Buyers should review the complete model label, physical channel count, D-configuration path map, FC/APC connector condition, supported wavelength range, remote interfaces, calibration status, functional test results, and included accessories before purchase.