1. Carrier-grade standard insert type 1-4 optical splitter, low insertion loss, uniform light splitting 2. Low insertion loss, high return loss, good interchangeability, good repeatability, good temperature stability 3. Uniform light splitting and stable transmission using high-quality transmission chips 4. Ceramic ferrule, stable conversion 5. ABS raw materials have the characteristics of compression resistance, impact resistance, heat resistance, low temperature resistance, etc. 6. Wide range of uses, meeting the needs of different wavelengths, low insertion loss, and can be installed in various existing transfer boxes 7. Insertion times: 300 times 8. Insertion loss: 7.2dB 9. Working temperature: -40 to 85 degrees Celsius 10. Test wavelength: 1310nm 11. Working wavelength: 1260nm-1650nm 12. Number of interfaces: 5 13. Interface model: SC/UPC 14. Spectral uniformity: 0.8dB 15. Directivity: 55dB 16. Temperature stability: 0.6dB 17. Polarization dependent loss: 0.3dB 18. Wavelength dependent loss: 1.0dB 19. Return loss: 55dB 20. Dimensions: 130 x 112 x 26mm