DW-ORIB Is a common type of forward indoor optical receiver, photoelectric conversion part of the selection of PHILIPS or E-O high sensitivity PIN light detector, radio frequency amplification circuit level before the imported PHILIPS or MOTOROLA low exercise sound amplifier module, the output level of imported PHILIPS or MOTOROLA amplifying module, can also be based on customer requirements, selection of GaAs amplifier module, built-in plug-in diplex filter and the plug-in output branching device, the front panel is provided with six valence optical power indicator, output step and output electrical average passing in front of the adjustable attenuator for adjusting, make engineering debugging more convenient, waterproof cast aluminum alloy shell, high reliability of switch power supply, strict anti-lightning system, ensure the equipment in the wild harsh environment of long-term stability.