... high reliability operation Optical Switch TPOSSummary:TPOS optic switch is mainly applied in optic circuit switch , optic equipment switch that demands high reliability ... as CATV system head-end 1550nm Optic transmitter, EDFA automatic switch of heat-backup, with the aim of protection of optic ... :1×2,2×1or2×2, 19standard casing ,Automatic status or manual switch status can be set at front panel. The ...