1: It is ideal choices for networks of high safety or functions . 2:Equipped with cable that can be replaced and connected the shelf slowly in the back . 3: The inside is equipped with the cable and management ring and safety devices . 4:The adaptor bar is the same as adaptor bar and the right of frame type distribution box . 5:Design for the building or campus network backbone specially . 6:Optic fiber of backbone of fiber end and bridle wire can be separated in the locked section. Please contact Della via mailing to dip at ccwt.cn