GORE™ Space Cables and Assemblies: Datalines
Improve Signal Integrity for Critical Data Transmission
Data transmission between various systems on a spacecraft is crucial to the success and safety of the mission. The cables used to transmit data have a direct impact on the quality of the signal and the time required for transmission. GORE™ Datalines combine excellent electrical performance with mechanical robustness to provide outstanding signal transmission in the most difficult situations.
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How to Buy
For more information about buying this product or to request a quote, please contact us.
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The small size and minimum bending radius of GORE™ Datalines make them easy to install in tight places. Because they are very lightweight, these datalines minimize the problems associated with balancing difficult mass budgets. Manufactured as coaxial, triaxial, and balanced lines, GORE™ Datalines offer low capacitance and low signal attenuation. These datalines provide constant characteristic impedance along the entire cable with minimal reflections.
GORE™ Datalines have been proven to provide the lightest, most reliable rate of data transmission available in today’s market. Designed with wires of identical electrical length, GORE™ Datalines have a conductor time delay that differs by less than 0.1 nsec/m.
The Science Behind the Cables
The key to the outstanding performance of GORE™ Datalines is the proprietary material used in the cable insulation — expanded polytetrafluoroethylene (ePTFE). At high frequencies, the electrical properties of the insulation become extremely important, particularly the dielectric constant (εr). The εr for air is 1.0, and the ideal value for cable insulation material should be as close to 1.0 as possible. Expanded PTFE has an εr of 1.3, which means that ePTFE facilitates low capacitance and minimal attenuation along with high signal speed in GORE™ Datalines. Because ePTFE is chemically inert, GORE™ Datalines can even be used at cryogenic temperatures or as high as 260°C for short periods of time.
Typical Uses
- Digital signal processors
- High-resolution cameras, sensors, and detectors
- High-speed subsystem interconnects
Sample Applications
- European Remote Sensing Satellite (ERS1/ERS2)
- ENVISAT
- XMM
- International Space Station (ISS)
- James Webb Space Telescope (JWST)
- NASA Lunar Reconnaissance Orbiter
Key Features
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Lowest weight and smallest diameter
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Excellent electrical performance
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Superior EMC performance
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Fault-tolerant and standardized LVDS technology
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High flexiblity and low bend radius
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Minimal conductor time delay
Key Benefits
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Outstanding signal transmission because of electrical performance and fault tolerance
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Long-lasting life resulting from robust insulation
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Easy installation with cable flexibility and low bend radius
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Valued reliability delivered from an ESA-qualified and a DIN EN ISO 9001:2000-certified manufacturing facility
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Superior sales and technical support from Gore’s worldwide engineering team
Technical Specifications
All GORE™ Datalines meet the following technical specifications according to ESCC 3902/002. See the ordering information for the technical data specific to each GORE™ Dataline.
| Property | Value |
|---|---|
| Operating temperature range | -200°C to +180°C |
| Maximum temperature for short periods | 260°C |
| Dielectric material | Expanded PTFE or wrapped PTFE |
| Outer jacket | PFA |
| Conductor construction | Silver-plated, high-strength copper and copper alloy |
| Operating voltage | 100 V RMS |
| Bending radius | 10 x outer diameter (repeated) or 6 x outer diameter (once) |
| Transmission rate | Up to 1 GHz |
Ordering Information*
| Part Number | Impedance (ohm) |
Gauge Size (AWG) |
Construction |
|---|---|---|---|
| GBL-075-24 | 75 | 24 | Balanced |
| GBL-100-22 | 100 (with drain wire) | 22 | Balanced |
| GBL-120-30 | 120 | 30 | Balanced |
| GBL-120-28 | 120 | 28 | Balanced |
| GBL-120-26 | 120 | 26 | Balanced |
| GBL-120-24 | 120 | 24 | Balanced |
| GCX-050-28 | 50 | 28 | Coaxial |
| GCX-050-26 | 50 | 26 | Coaxial |
| GCX-050-20 | 50 | 20 | Coaxial |
| GCX-075-26 | 75 | 26 | Coaxial |
| GTX-050-26 | 50 | 26 | Triaxial |
| GTX-050-20 | 50 | 20 | Triaxial |
| GTX-075-20 | 75 | 20 | Triaxial |
*Custom Designs available upon request
The information given herein is based on data believed to be reliable. However, W. L. Gore & Associates makes no warranties, expressed or implied, as to its accuracy and assumes no liability arising out of its use by others. This publication is not to be taken as a license to operate or as a recommendation to infringe patents.