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| Function | Support 1+1 (dual transmit select receive), 1:1 (select transmit select receive) protection mode support cross-sectional optical protection support OSC single fiber bi-directional function |
| Number of slots | 1/4 Slot |
| Degree of integration | Supports 1 or 2 protection groups |
| Insertion Losses | ≤4dB at the sending end, ≤1.5dB at the receiving end |
| Switching time | ＜5ms |
| Input optical power range | -25～+21（dBm） |
| Optical power detection accuracy | ±0.5 (dBm) (@ > -25dB or more) |
| Inversion method | Main and backup channel relative power difference over the limit inversion, inversion threshold setting range 3 ~ 8dB single channel absolute power value over the limit inversion, inversion threshold setting range ≥ -20dBm support NONE, lockout, forced inversion, manual inversion, automatic inversion support power down, power on tether lock, hot swap, the main control failure does not affect the protection of inversion |
