×
Logga in
Tyvärr kunde vi inte logga in dig.
Kontrollera e-postadress och lösenord.
E-postadress
Lösenord
Kom ihåg mitt inloggningsnamn
Jag har glömt mitt lösenord.
Skapa ett konto.
×
Leveransinformation
The basket of your last visit to Black Box is still available.
Vänligen skapa ett konto för att fortsätta.
Login
×
Hem
>
Information
>
Tekniska Resurser
>
Black Box Explains
>
WAN
>
Transatlantic G.703 comparisons.
Varukorg
|
Logga in
|
Kontakt
Navigation
WAN
Differences between line drivers, baseband modems, and modems.
How a line driver operates.
Modem eliminators.
Synchronous Digital Hierarchy (SDH).
Time-Division Multiplexing over Internet Protocol (TDMoIP).
Introduction to G.703
G.703 technology
Transatlantic G.703 comparisons.
HDB3 Encoding.
What is a DSL modem?
Some line encoding techniques used by DSL.
Various DSL standards.
G.SHDSL, VDSL, and VDSL2.
« Black Box Explains
Transatlantic G.703 comparisons.
Transatlantic G.703 comparisons
Europe
U.S.
Called E1
Called T1
32 user timeslots
24 user timeslots
Total speed: 2.048 Mbps unframed
Total speed: 1.544 Mbps unframed
User speed: ≤ 1.984 kbps in 64-kbps steps for framed
User speed: ≤ 1.536 kbps in 64-kbps steps for framed (D4 or ESF)
HDB3 encoding
AMI or B8ZS encoding
Live Chat