1.distribution box 2.suitable for 10 pairs STG,lSA,QCS module 3.have 30,50,100 pairs types 4.with screw lock ... ,lSA,QCS module3.have 30,50,100 pairs types4.with screw lock EnvironmentEnvironment condition(-40°C ——90°C)operation condition(-20 ... and 10 pairsIDC type disconnection and connection types STB distribution box