JDS Uniphase SC2D10241+27XF000FP Dual 1x12 FC/PC Single-Mode Programmable Optical Switch

JDS Uniphase SC2D10241+27XF000FP Dual 1x12 Programmable Optical Switch

The JDS Uniphase SC2D10241+27XF000FP is a rack-mount programmable fiber optic switch configured as two coordinated 1x12 optical switch paths. It provides two input channels and 24 output channels using 9/125 µm single-mode fiber and front-panel FC/PC bulkhead connectors.

The instrument uses the JDS Uniphase D configuration, which simultaneously connects a bank of input fibers to corresponding output fibers. With two inputs and 24 total outputs, the output channels are arranged as 12 paired positions. At each position, both input paths are connected simultaneously to their corresponding outputs. This operation is commonly described as dual 1x12 switching or 2 x (1x12) optical routing.

The switch operates from 1270 nm to 1670 nm, covering common single-mode telecommunications wavelengths such as 1310 nm, 1490 nm, 1550 nm, and 1625 nm. Its broad operating range supports fiber optic component testing, optical amplifier evaluation, transmitter and receiver testing, source routing, detector selection, system verification, and automated production measurements.

Expanded-beam lens technology and precision stepper-motor positioning provide repeatable optical alignment. Internal temperature control stabilizes the switching mechanism, helping maintain consistent optical performance during extended laboratory and production operation.

Features and Benefits of the JDS Uniphase SC2D10241+27XF000FP

• Dual 1x12 architecture: Provides two coordinated optical paths, with each input routed across a corresponding bank of 12 outputs.
• Simultaneous D-configuration switching: Moves both input paths together to the selected paired output position.
• Two inputs and 24 outputs: Provides 12 selectable paired-channel positions through 26 front-panel optical ports.
• 9/125 µm single-mode fiber: Supports compatible telecommunications, laboratory, production, and photonics systems.
• Broad wavelength coverage: Operates from 1270 nm to 1670 nm.
• Front-panel FC/PC bulkheads: Provides secure, connectorized access to all input and output channels.
• Low insertion loss: Provides 0.4 dB typical internal insertion loss for the documented two-input D configuration.
• High return loss: Provides at least 65 dB typical internal return loss for the standard single-mode configuration.
• Low polarization-dependent loss: Provides 0.02 dB typical PDL for supported single-mode D-configuration paths.
• Repeatable channel selection: Supports typical sequential switching repeatability of ±0.005 dB.
• High optical isolation: Provides maximum single-mode crosstalk of -80 dB.
• Local and remote operation: Supports front-panel control, GPIB, and serial RS-232 interfaces.

Dual 1x12 Optical Routing

The SC2D10241+27XF000FP contains two optical input channels and 24 optical output channels. The D configuration divides the outputs into 12 paired positions, allowing both inputs to advance together through their corresponding output banks.

At each selected position, Input 1 is connected to its assigned output in the first bank while Input 2 is connected simultaneously to the corresponding output in the second bank. This coordinated routing makes the instrument appropriate for applications requiring two related optical signals or measurement paths to move together.

The switch is not a fully independent 2x24 matrix. It does not provide unrestricted routing of either input to any arbitrary output. The two paths are mechanically coordinated according to the D-configuration channel sequence.

D-Configuration Operation

The JDS Uniphase D configuration is designed for simultaneous reconfiguration of multiple optical paths. A bank of input fibers is aligned with corresponding output fibers at each selected switch position.

For this two-input model, selecting one paired position establishes two optical connections. This arrangement can support simultaneous source and detector routing, paired device testing, two-wavelength measurements, reference and measurement paths, or two related groups of components.

The exact labeling of the two output banks should be confirmed from the instrument front panel. The channel map should be documented before automated testing begins so software commands correspond to the correct pair of physical outputs.

Expanded-Beam Optical Switching

The SC Series uses expanded-beam lens technology to route optical signals. Collimating lenses expand and direct the optical beam while a precision stepper motor aligns the internal channels with the selected output position.

This optical design minimizes direct contact between internal fiber ends and supports low insertion loss, stable alignment, and repeatable switching. Internal temperature control helps compensate for environmental changes that could otherwise affect mechanical positioning.

The switch is passive with respect to the transmitted signal. It does not generate, amplify, detect, modulate, regenerate, or convert the optical wavelength.

1270 nm to 1670 nm Wavelength Range

The F wavelength code identifies an operating range from 1270 nm to 1670 nm. This range covers several important wavelengths used in single-mode fiber optic communication, testing, monitoring, and component qualification.

The switch can route compatible signals near 1310 nm, 1490 nm, 1550 nm, and 1625 nm, as well as other wavelengths within the documented range. Connected sources, detectors, patch cords, and devices under test must support the selected operating wavelength.

Because the switch is optically passive, it can route continuous-wave, modulated, analog, or digital optical signals within its supported wavelength and power limits.

9/125 µm Single-Mode Fiber

The fiber code 7 identifies 9/125 µm single-mode fiber. Compatible single-mode patch cords, sources, detectors, components, and test instruments should be used throughout the optical path.

Multimode fiber should not be substituted in a precision single-mode setup. Fiber mismatch can change coupling conditions, increase loss, and produce results that do not represent the intended optical system.

Single-mode patch cords should be routed with an appropriate bend radius and protected from pulling, twisting, crushing, and repeated movement. Mechanical stress can change optical loss and polarization conditions.

Front-Panel FC/PC Bulkheads

The input port code 1 and output port code 1 identify front-panel optical bulkheads. The FP connector code identifies FC/PC connectors on all optical ports.

The front panel provides two input bulkheads and 24 output bulkheads. Threaded FC connections help prevent accidental disconnection and support mechanically stable laboratory and rack-mounted test installations.

All FC/PC end faces should be inspected and cleaned before connection. Contamination can increase insertion loss, reduce return loss, introduce unstable readings, and damage the mating optical interfaces.

FC/APC connectors should not be directly connected to FC/PC bulkheads. The angled and non-angled ferrule geometries are incompatible and can produce excessive loss or physical damage.

Low Insertion Loss

The documented two-input single-mode D configuration provides typical internal insertion loss of 0.4 dB and maximum internal insertion loss of 0.7 dB. These values exclude losses introduced by the external FC/PC connectors.

The complete end-to-end path includes the internal switch loss, input connector, output connector, patch cords, adapters, and any other connected components. Each paired switch position should be referenced when precise insertion-loss measurements are required.

High Return Loss

The X code identifies the standard return-loss configuration. Typical internal return loss for the documented single-mode D configuration is at least 65 dB, with a specified minimum of 60 dB. Connector contributions are excluded from these values.

High return loss helps reduce reflected power traveling back toward lasers, optical amplifiers, transmitters, and other reflection-sensitive equipment.

Complete system return loss depends on connector polish, patch-cord condition, interface cleanliness, adapters, and connected devices. The use of FC/PC connectors may produce lower system return loss than the internal switch-path specification.

Low Polarization-Dependent Loss

Polarization-dependent loss for the single-mode D configuration is specified at 0.02 dB typical and 0.05 dB maximum. Low PDL helps limit changes in transmitted power as the input state of polarization changes.

This performance supports optical component testing, gain measurements, power monitoring, and other applications where polarization-related variations could affect measurement repeatability.

The complete system may include additional PDL from patch cords, connectors, adapters, couplers, and devices under test.

Switching Repeatability

Typical sequential switching repeatability is ±0.005 dB, with a documented maximum of ±0.01 dB. Sequential switching refers to movement through paired channel positions in their normal order.

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

Repeatability can also be influenced by source stability, detector noise, connector cleanliness, patch-cord movement, wavelength, polarization, and environmental temperature.

Insertion-Loss Stability

Insertion-loss stability is specified at ±0.03 dB typical and ±0.05 dB maximum. The documented stability measurement represents the drift of a channel relative to a reference channel during a ±3 °C ambient-temperature deviation over seven days.

The internally controlled switching mechanism helps preserve optical alignment. For precision testing, the switch and connected instruments should still be allowed to reach thermal stability before reference measurements are established.

Crosstalk and Channel Isolation

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

High isolation is useful when weak optical signals are measured near stronger sources or when several output channels are connected to sensitive receivers and detectors.

System-level crosstalk may also include contributions from external components, detector limitations, stray optical signals, and the physical test setup.

Switching Time

The documented switching time is 300 ms for one channel movement and 12 ms for each additional channel traversed. Total switching time depends on the distance between the current and requested positions.

Automated software should allow enough time for the mechanism to reach the selected paired position before recording measurements from connected optical instruments.

Maximum Optical Input Power

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

This switch rating does not establish a safe input level for equipment connected to the output channels. Each receiver, detector, power meter, and device under test must remain within its own optical input limits.

Front-Panel, GPIB and RS-232 Control

The SC2D10241+27XF000FP can be controlled locally through front-panel keys and a numeric keypad. Local operation supports setup, channel identification, troubleshooting, and individual measurements.

GPIB and serial RS-232 interfaces support remote operation from compatible computers and automated test controllers. Remote channel selection allows switching to be coordinated with optical sources, attenuators, power meters, spectrum analyzers, receivers, and other measurement equipment.

The SC platform also provides four open-collector drivers for compatible external switch modules. The documented maximum sink current is 100 mA.

Typical Applications

• Dual-path fiber optic component testing
• Automated optical signal routing
• Optical transmitter and receiver testing
• Source and detector channel selection
• Optical power and insertion-loss measurements
• Optical amplifier characterization
• WDM and DWDM component testing
• Fiber optic cable and assembly evaluation
• Telecommunications system verification
• Environmental component testing
• Production and quality-control testing
• Laboratory research and development

Product Overview

Brand	JDS Uniphase
Model	SC2D10241+27XF000FP
Product Series	SC Series
Product Category	Rack-Mount Programmable Optical Switch
Switch Configuration	Dual 1x12 D configuration
Input Channels	Two
Total Output Channels	Twenty-four, arranged as 12 paired positions
Fiber Type	9/125 µm single-mode
Connector Type	FC/PC
Port Location	Front-panel bulkheads
Wavelength Range	1270 nm to 1670 nm
Return-Loss Configuration	Standard
Primary Application	Coordinated dual-path optical routing and automated fiber optic testing

 

Model Configuration Breakdown

Part Number Element	Configuration
SC	SC Series rack-mount programmable fiber optic switch
2D	Two input channels operating in D configuration
Input Port Code 1	Input bulkheads on the front panel
Output Code 024	Twenty-four total output channels
Output Port Code 1	Output bulkheads on the front panel
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 bulkheads
Connector Code FP	FC/PC optical connectors

 

Optical Specifications

Specification	Typical	Documented Limit
Insertion Loss	0.4 dB	0.7 dB maximum, excluding connectors
Return Loss	At least 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	-80 dB maximum

 

Switching and Control Specifications

Specification	Details
Switching Technology	Expanded-beam lens alignment with precision stepper-motor positioning
First-Channel Switching Time	300 ms
Each Additional Channel	12 ms
Maximum Optical Input Power	300 mW
Local Control	Front-panel keys and numeric keypad
Remote Interfaces	GPIB and serial RS-232
External Switch Drivers	Four open-collector drivers
Maximum Driver Sink Current	100 mA

 

Physical and Environmental Specifications

Specification	Details
Width	48 cm
Height	13 cm
Depth	37 cm, excluding handles
Weight	Approximately 9 kg
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

 

Power and Compliance Specifications

Specification	Details
AC Input Voltage	100 V to 240 V AC
Line Frequency	50 Hz to 60 Hz
Maximum Power Consumption	100 VA
Documented Compliance	CE and cCSAus compliant

 

Optical Path Mapping

The relationship between the two output banks should be documented before the switch is integrated into an automated test system. The front-panel labels should identify the paired channels selected at each switch position.

A stable optical source can be connected to both input ports, and compatible power meters can be used to identify the two active outputs at each position. The resulting path map should be recorded for use by operators and automation software.

The mapping procedure also provides an opportunity to verify continuity, paired-path operation, channel labeling, and relative insertion loss across all 12 positions.

Connection and Measurement Considerations

The switch and connected optical instruments should be allowed to reach thermal stability for at least one hour before measurements requiring the documented optical specifications are performed.

All 26 FC/PC bulkheads and associated patch cords should be inspected and cleaned before connection. Protective caps should remain installed on unused ports.

Each paired switch position should be referenced at the wavelength used for the final measurement. Input-to-output path loss can include the switch mechanism, FC/PC connector pairs, patch cords, and external components.

The optical input must remain below the 300 mW maximum. Appropriate attenuation should be used when connecting high-power lasers or optical amplifiers.

Comprehensive Functional and Performance Testing

The JDS Uniphase SC2D10241+27XF000FP receives comprehensive functional and performance testing before shipment. Evaluation may include AC power operation, startup, front-panel display, keypad response, paired-channel selection, GPIB communication, RS-232 communication, and available external driver functions.

Optical testing may include continuity through both paths at every paired position, verification of the dual 1x12 D-configuration sequence, input-to-output mapping, insertion-loss comparison, repeated switching, and operation at representative wavelengths within the supported range.

The FC/PC bulkheads may be inspected for contamination, damaged threads, worn alignment sleeves, loose mounting, missing caps, or other conditions that could affect optical coupling and measurement stability.

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

Calibration Before Shipment

When technically applicable and selected, the JDS Uniphase SC2D10241+27XF000FP can be calibrated or performance-verified before shipment. Evaluation may include optical path mapping, insertion loss, return loss, switching repeatability, crosstalk, switching time, and operation at selected wavelengths within the 1270 nm to 1670 nm range.

Calibration should identify the input, paired output position, test wavelength, reference patch cords, optical source, power meter, measured values, test procedure, and applicable uncertainty.

Buyers requiring formal calibration should specify the desired wavelengths, optical parameters, number of paired positions to be tested, certificate type, recorded results, and required measurement uncertainty before purchase.

Buyer Considerations

Buyers should confirm the complete model as JDS Uniphase SC2D10241+27XF000FP. The configuration identifies two inputs, 24 total outputs, D-configuration switching, 9/125 µm single-mode fiber, standard return-loss performance, operation from 1270 nm to 1670 nm, and front-panel FC/PC bulkheads.

The switch operates as two coordinated 1x12 paths rather than a fully independent 2x24 optical matrix. Both input paths move together according to the selected paired-channel position.

The listing should identify whether FC/PC patch cords, protective caps, GPIB cables, RS-232 cables, rack hardware, software, manuals, 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, and technical research applications. The JDS Uniphase SC2D10241+27XF000FP provides coordinated dual-path optical routing for component manufacturers, telecommunications laboratories, production facilities, amplifier developers, system integrators, universities, and research organizations.

Buyers should review the product photographs, complete model label, FC/PC port condition, paired-channel labeling, dual 1x12 D-configuration operation, supported wavelength range, remote interfaces, calibration status, functional test results, and included accessories before purchase.