MDF Protectors
This picture displays the protector block on the MDF. The protectors provide among other things protection for the switch equipment in the event of a high voltage placed on a pair. In a Central Office environment a test cord can be placed into a specific pair in place of the protector so tests can be made looking towards the switch equipment and out towards the station equipment to try an isolate faults.
MDF Protectors
This picture displays the protector block on the MDF. The protectors provide among other things protection for the switch equipment in the event of a high voltage placed on a pair. In a Central Office environment a test cord can be placed into a specific pair in place of the protector so tests can be made looking towards the switch equipment and out towards the station equipment to try an isolate faults.