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<subtitle curs="25">The copper pairs are again separated on the distribution frame</subtitle>
<subtitle curs="195">Each of them is connected to a contact on a vertical strip</subtitle>
<subtitle curs="305">The contact matches the subscriber’s physical address</subtitle>
<subtitle curs="480">Wires, commonly known as jumpers, connect the vertical strips to horizontal strips contact by contact</subtitle>
<subtitle curs="800">For the Public Switched Telephone Network, the contacts on the horizontal strips correspond to telephone numbers</subtitle>
<subtitle curs="993">For ADSL (broadband) lines, the contact on the horizontal strip is connected to a filter that separates low frequencies from high frequencies</subtitle>
<subtitle curs="1195">The low frequencies, which carry voice, are routed to a subscriber line processor</subtitle>
<subtitle curs="1307">The high frequencies, which carry data routed to the DSLAM (Digital Subscriber Line Access Multiplexer)</subtitle>
<subtitle curs="1594">If the line is partially unbundled, France Télécom handles the telephone’s low frequencies</subtitle>
<subtitle curs="1705">and reroutes the high (broadband) frequencies on to the vertical strip on the third-party operator’s distribution frame</subtitle>
<subtitle curs="1840">If the line is totally unbundled,</subtitle>
<subtitle curs="1885">the output line on France Télécom’s distribution frame is directly connected to the vertical strip on the third-party operator’s distribution frame</subtitle>
<subtitle curs="2130">The data flow is then routed from the DSLAM to the transmission room</subtitle>
<subtitle curs="2220">Voice is processed by a switching unit</subtitle>
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