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  2. Multiprotocol Label Switching - Wikipedia

    en.wikipedia.org/wiki/Multiprotocol_Label_Switching

    A label edge router (LER, also known as edge LSR) is a router that operates at the edge of an MPLS network and acts as the entry and exit points for the network. LERs push an MPLS label onto an incoming packet [b] and pop it off an outgoing packet.

  3. Facing Identification Mark - Wikipedia

    en.wikipedia.org/wiki/Facing_Identification_Mark

    Diagram showing placement of the FIM (FIM C in this example) on a reply mailer. The Facing Identification Mark, or FIM, is a bar code designed by the United States Postal Service to assist in the automated processing of mail.

  4. Return address - Wikipedia

    en.wikipedia.org/wiki/Return_address

    This prompted the postmaster to inform the public that mail without a return address would be less of a priority than mail with a return address. Still, the public did not widely use a return address until the 1960s when companies began to offer deals for preprinted return labels such as 2,500 labels for $2.00.

  5. Small Form-factor Pluggable - Wikipedia

    en.wikipedia.org/wiki/Small_Form-factor_Pluggable

    SFP transceivers are available with a variety of transmitter and receiver specifications, allowing users to select the appropriate transceiver for each link to provide the required optical or electrical reach over the available media type (e.g. twisted pair or twinaxial copper cables, multi-mode or single-mode fiber cables). Transceivers are ...

  6. Telecommunications - Wikipedia

    en.wikipedia.org/wiki/Telecommunications

    TAT-8 itself was able to carry 10 times as many telephone calls as the last copper cable laid at that time and today's optical fibre cables are able to carry 25 times as many telephone calls as TAT-8. [76] This increase in data capacity is due to several factors: First, optical fibres are physically much smaller than competing technologies.

  7. How to check and change your billing address - AOL

    www.aol.com/finance/check-change-billing-address...

    How to change your billing address with American Express. To submit an American Express change address request, log in to your American Express online account or call customer service at 1-800-528 ...

  8. Amazon Just Changed Its Return Policy — And You’ll Be Charged ...

    www.aol.com/finance/amazon-just-changed-return...

    Amazon has changed its return policy in an effort to cut down on costs. Amazon customers used to be able to drop off returns at UPS stores free of charge, but now the world's largest online ...

  9. Optical communication - Wikipedia

    en.wikipedia.org/wiki/Optical_communication

    Optical communication, also known as optical telecommunication, is communication at a distance using light to carry information. It can be performed visually or by using electronic devices . The earliest basic forms of optical communication date back several millennia, while the earliest electrical device created to do so was the photophone ...