GORE™ Space Cables and Assemblies: SpaceWire Cables
Reduce Costs for High-Quality Flight and Ground Data Transfer
Data transmission is essential to the success of every space mission. Meeting the stringent electrical and mechanical requirements of ECSS-E-ST-50-12C, GORE™ SpaceWire Cables provide bidirectional, high-speed data transmission up to typically 400 Mbit/s with minimal crosstalk, signal attenuation, and low skew.
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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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Using a serial, point-to-point dataline with Low Voltage Differential Signaling (LVDS), GORE™ SpaceWire Cables reduce costs because they can be integrated into many different satellite programs without requiring any custom design. These cables are available in either bulk or custom-assembled forms, terminated on micro-miniature D-type connectors.
The Science Behind the Cables
The key to the outstanding performance of GORE™ SpaceWire Cables is the proprietary material used in the cable insulation — expanded polytetrafluoroethylene (ePTFE). Using ePTFE, Gore supports LVDS, which allows data to pass through the cable without significant signal loss. By combining this LVDS technology with standard hardware protocols, GORE™ SpaceWire Cable provides a simple alternative to the need for customized program designs.
Typical Uses
- EGSE equipment
- Radar sensor equipment
- High-resolution cameras
- Sensor, mass-memory unit, and telemetry subsystem interconnections
Sample Applications
- James Webb Space Telescope (JWST)
- SDO
- KAI
Key Features
- Designed specifically for use in space and ground applications
- 100 ohm impedance shielded signal pairs — individually or overall shielded
- Very low skew, signal attenuation, and crosstalk
- Good EMC performance
Key Benefits
- Easier installation and reduced costs from common compatibility based on ESCC standard
- Better signal transmission, impedance, skew, attenuation, crosstalk, and EMC performance
- Improved reliability from rugged materials used in construction
- Valued reliability delivered from an ESA-qualified and a DIN EN ISO 9001:2000-certified manufacturing facility
- Superior sales and technical support from Gore’s worldwide engineering team
Technical Specifications
All GORE™ SpaceWire Cables meet the following technical specifications. See the ordering information for the technical data specific to each cable.
| Property | Value |
|---|---|
| Dielectric material | Expanded PTFE |
| Outer jacket | PFA |
| Conductor construction | Concentric silver-plated copper |
| Operating voltage | 200 V RMS |
| Impedance | 100 ohms ± 6 ohms |
| Maximum diameter | 7.5 mm |
| Bending radius | 10 x outer diameter (repeated) or 6 x outer diameter (once) |
| Maximum time delay (pair) | 4.30 nsec/m |
| Maximum conductor time delay difference (pair) | 0.08 nsec/m |
| Maximum conductor time delay difference (pair–pair) | 0.13 nsec/m |
Ordering Information
| Properties | Part Number GSC-05-82963 |
Part Number GSC-05-81757 |
Part Number GSC-05-82730 |
|---|---|---|---|
| Construction | Ground hardware | Standard flight hardware | Advanced flight hardware |
| Gauge size (AWG) | 28 | 28 | 26 |
| Operating temperature range | -30°C to +90°C | -200°C to +180°C | -200C° to +180°C |
| Maximum temperature for short periods | 105°C | 200°C | 200°C |
| Maximum weight | 85 g/m | 85 g/m | 100 g/m |
| Transmission rate | 400 Mbit/s | 400 Mbit/s | Up to 3 Gbit/s |
| Maximum capacitance: conductor to conductor | 50 pF/m | 50 pF/m | 45 pF/m |
| Maximum capacitance: conductor to shield | 90 pF/m | 90 pF/m | 79 pF/m |
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.