1. Integrated GPON broadband access system and CATV telecommunication relay transmission device. 2. It contain power ,OLT and EDFA.It support broadband for user,IP voice,IPTV,CATV etc multiple integrated business access.It also can work separately as outdoor OLT,outdoor EDFA. 3. Outdoor waterproof design,good heat dissipation.It applicable for low density arean.And the place not convenient to built up plant room.