main distribution frame การใช้
- By 1995 only the main distribution frame was still in service.
- Inside plant work includes running a jumper on the main distribution frame and programming the switch.
- The commune has no Main distribution frame for ADSL installed nor is it connected to a fibre optic network.
- The building housed fire destroyed the main distribution frame, which was significant because the building contained twelve exchanges and five toll switching machines.
- A typical central office may have tens of thousands of pairs of wires that appear on terminal blocks called the main distribution frame ( MDF ).
- The functionality is similar to one performed by a Main distribution frame or any other distribution frame, so sometimes is referred to as " Automated Main Distribution Frame ".
- The functionality is similar to one performed by a Main distribution frame or any other distribution frame, so sometimes is referred to as " Automated Main Distribution Frame ".
- An automated main distribution frame provides, after an initial installation of all relevant subscriber-and office equipment lines, remote controlled and locally performed connectivity by switching via the switching matrix of an AMDF.
- Advantages of automated main distribution frame include reduced switching time, reduced errors in execution and documentation, no truck-roll for each subscriber connection to be established, and reduction of operational expenditures ( OPEX ).
- Openreach manages BT's local access network which connects customers to their local telephone exchange, starting at the main distribution frame ( MDF ) in the exchange and ending at the network termination point ( NTP ) at the end user's premises.
- Telephone technicians often used the phrase " red-right-ring-rear " ( or " ring-right-red-rough " ) to remember that the red wire connects to the right-side post in the wall jack and to the ring on the plug and to the rear lug on main distribution frames.
- First a primer on how a plain old telephone works-it's simply two wires ( which telcospeak calls " the pair " and latterly " the local loop " ) connected to a relay and some electrical gubbins ( in telco " the main distribution frame " ) down at the telephone exchange ( telco : " the central office " or " C . O . " ).