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Product Description
The LRM Series Modular Optoelectronic Hybrid Connectors are designed as standard interconnect solutions for avionics LRM (Line Replaceable Module) systems.
They support multi-signal integration within a compact, highly reliable modular architecture, enabling simultaneous transmission of RF, differential, optical, and power signals.
Key Features
- Standard connector solution for LRM avionics modules
- Compatible with SEM-D, SEM-E, and ASAAC architectures
- Highly reliable hyperbolic wire reed hole contacts
- Modular combined structure enabling:
RF signals
High-speed differential signals
Optical signals
Power transmission - RF module operating frequency up to 40 GHz
- Differential data transmission rate up to 6.25 Gbps
- Optical module insertion loss ≤ 0.7 dB
Technical Specifications
High-Speed Differential Signal Performance
| Parameter | Specification |
| Differential impedance | 100 Ω |
| Data rate | Up to 6.25 Gbps |
| Crosstalk | ≤ –30 dB |
| Contact resistance | ≤ 20 mΩ |
| Rated current | 1 A |
| Withstanding voltage (air) | 100 VAC |
Mechanical Performance
| Parameter | Specification |
| Mechanical life | 500 mating cycles |
| Insertion force | ≤ 379 N |
| Sine vibration | 10–2000 Hz, 196 m/s² |
| Random vibration | 10–2000 Hz, PSD 0.2 g²/Hz |
| Shock | 490 m/s² |
Environmental Performance
| Condition | Temperature Range |
| All-electric configuration | –65°C to +150°C |
| Optical hybrid load | –55°C to +125°C |
| High/low frequency mixed load | –65°C to +125°C |
| Salt mist resistance | 96 h |
| Damp heat | Alternating damp heat II, 10 cycles (GJB1217) |
RF Performance
| Parameter | Specification |
| Operating frequency | DC – 40 GHz |
| Characteristic impedance | 50 Ω |
| RF insertion loss | ≤ 0.06 dB (DC–40 GHz) |
| VSWR | ≤ 1.3 (DC–18 GHz); ≤ 1.5 (18–40 GHz) |
| Phase stability | ≤ ±3° (DC–18 GHz); ≤ ±6° (18–40 GHz) |
| Isolation | –85 dB (DC–18 GHz); –80 dB (18–40 GHz) |
| RF leakage | –80 dB (2–3 GHz) |
| Contact resistance | Center: 11 mΩ / Outer: 3 mΩ |
Optical Transmission Performance
Insertion loss: ≤ 0.7 dB
Power Transmission Performance
| Parameter | Specification |
| Contact resistance | ≤ 5 mΩ |
| Rated current | 7.5 A |
| Withstanding voltage | 1000 VAC |
| Insulation resistance (ambient) | ≥ 1000 MΩ |
| Insulation resistance (high temp.) | ≥ 1000 MΩ |
