CONMOLY / ENGINEERING & CONNECTIVITY
Reference configuration: LVDS serial point-to-point links carry bidirectional data up to 400 Mbps with low crosstalk, loss and skew plus lightweight shielding for critical spacecraft interconnects.
Space Cables
CM-SPACE-SPACEWIRE
SpaceWire
Reference configurations only; specifications and certifications require confirmation.
Selection reference. Published third-party figures below describe specific reference configurations; they are not Conmoly guaranteed values or certifications. Confirm the final construction and test requirements with engineering.
Values apply to the traditional-space SpaceWire configuration; choose 26 or 28 AWG against link and mass budgets.
Scroll the table horizontally to view all configuration conditions.
| Parameter | Reference value | Configuration / condition |
|---|---|---|
| Data rate | 400 Mbps | Bidirectional LVDS link |
| Maximum operating voltage | 200 Vrms | Traditional-space configuration |
| Time delay | 4.30 ns/m | Pair |
| Intra-pair skew | ≤ 150 ps/m | Specification limit |
| Dielectric withstand | 1400 Vrms | Conductor-conductor/shield |
| Temperature / radiation | −200 to +180 °C · 10+ MRad | Traditional-space configuration |
| Vacuum stability | VCM < 0.1% · TML < 1.0% | ASTM 595 / ECSS-Q-70-02 |
Reference source: www.gore.com
| 26 AWG SpaceWire | Balances link loss, mechanical strength and termination. |
|---|---|
| 28 AWG lightweight type | Reduces diameter and mass for dense routing. |
| Terminated assembly | Connector, length and shield grounding form the complete channel. |
| Space-grade conductor | Material, stranding and plating are selected for resistance, strength, flex and termination. |
|---|---|
| Low-outgassing insulation | Dielectric, thermal, vacuum-stability and processing requirements guide material selection. |
| Controlled functional unit | Single, twisted, shielded, coaxial or multicore signal geometry is formed. |
| Lightweight shield and cover | EMI, atomic oxygen, protection and mass are optimized together. |
| Termination and traceability | Connector, branch, strain relief, material lot and process records remain controlled. |
| Mission and orbit | LEO, GEO, deep space, launch phase and mission duration |
|---|---|
| Electrical function | Voltage, current, protocol, frequency, impedance and core count |
| Mass and space | Mass per meter, diameter, bend radius and route |
| Environment | Vacuum, thermal cycle, radiation, ATOX, vibration and shock |
| Harness interface | Connector, branch, lacing, ground and installation process |
| Verification level | Applicable ESCC/NASA documents, first article, lot and traceability |
Page values do not constitute mission qualification or approval. Applicable standards, lot screening and verification levels are confirmed per project.
Reference configuration: Conductive or semi-conductive covers continuously drain static charge and provide lightweight, flexible, atomic-oxygen-resistant 600 Vrms power interconnects for moving LEO and GEO systems.
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Reference configuration: ESCC 3901/025 lightweight GEO cable delivers 600 Vrms power and analog/low-frequency signals with smaller diameter, lower mass and tighter bending.
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Reference configuration: ePTFE, PTFE and PFA combine in a chemical- and cut-through-resistant, low-springback wide-temperature space cable covering 12–30 AWG and multicore constructions.
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