MAIN DISTRIBUTION FRAME (MDF) CABINETS AND DP
MDF,CABINETS AND DP MAIN DISTRIBUTION FRAME (M.D.F). Frame in the exchange used for making cross connections between the incoming cables and exchange equipment. On the line side of the frame the cables terminate on protector strips. It is a connecting/testing point where incoming cable (from switch room) out-going cable to cabinet are terminated. It is of two types (i) Wall Type. (ii) Floor Type. Both sides cables are terminated systematically and join them with a wire i.e. called jumper wire. By this we can change or shift a number easily. DEFINITION OF CABINET: It is a small testing point where primary and secondary pairs are terminated. CABINET CAPACITY: Total number of primary and secondary pairs those terminated in a cabinet is called capacity of cabinet. CONSTRUCTION OF CABINET: It is an almirah made of iron and fiber. It is fixed on the stand made of bricks and cement. TYPES OF CABINETS: 1 50/100 poles mount cabinet 2 300/400 ...