DDF(21 pairs block connection module) main features:

1.Aluminum-alloy frame.its surface is sprayce with strongly adhesive mild color plastic, which has mild color,strong adhesive strength and good corrosion-resistant ability.

2.modular unit structre.the distribution units are connected to frame with rhombus nets without  the necessity of holing on the frame;

3.gold-plated coaxial connectors(Y-shaped plugs,sockets and cable head plugs) with characterristic impedance of  750hm are fixed.

4.cabling is  inside the frame.jumping can be done all directions.

5.A cable head  plug  is  connected  with  one end  of  the socket by the way of  direct insertion and  thread-fixing,which  is  more  flexible for distribution,jumping  and  conversion.the plug with test hole is  connected  with the other end  of  the socket  by  insertion and  thread-fixing;wiring bars are available on  distribution unit;

6.perfect grounding device and  clear cabling  course;

me unit cab be turn down for  90degree ,convenient  for  termination.