Digital Telephone Tester


Test board is an essential test instrument for maintain telecom copper access network. normally that found in main distribution frame (MDF). test board is some big and that has mechanical switching array that switch with analogue meter acording to test requirement like Earth,Current-on,short circuit etc.

MSAN is Service access node that located away from telecom central office. all MDF operation needed for Remote MSAN. But test board cannot fixed their because test board is very big. here is my solution for that Digital test board with same function like old one.

Block Diagram



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Download Firmware

Not upload