1. 1G main-board design, convenient for upgrading. 2. Advanced GaAs synthesis technology. 3. Flexible configuration and combination (opto-electronic integration module, PIN tube +IC). 4. 750/862MHz bandwidth, bidirectional transmission. 5. High index, high level, low distortion, low power loss. 6. Low optical power receiving -7~+2dBm. 7. Current passing capacity is 12A. 8. High quality thunder protected circuit. 9. Excellent military rank switch power. 10. Excellent thermal design, strong heat-sinking capability. 11. Excellent cast aluminum casing, dustproof ,rainproof,waterproof . 12. Distributing output way.