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CHAPTER 1. Definition
1. What is ADSL?
ADSL (asymmetric digital subscriber line) is called "asymmetric"
because most of its two-way or duplex bandwidth is devoted to the
downstream direction, sending data to the user. Only a small portion of
bandwidth is available for upstream or user-interaction messages.
Using ADSL, up to 6.1 Mbps of data can be sent downstream and up
to 640 Kbps upstream.
because most of its two-way or duplex bandwidth is devoted to the
downstream direction, sending data to the user. Only a small portion of
bandwidth is available for upstream or user-interaction messages.
Using ADSL, up to 6.1 Mbps of data can be sent downstream and up
to 640 Kbps upstream.
2. ADSL Features.
" High Speed Access
" “Always On” Connection
" Voice and Internet At The Same Time
" Security
" “Always On” Connection
" Voice and Internet At The Same Time
" Security
( Figure1. ADSL Service Process )
CHAPTER 2. Preliminary Application Notes
1. Power Adaptor
The RECSPEED-8050E using 9V/1A DC power adaptor. And inside
of the plug is positive polarity and outside of the plug is negative
polarity. If you didn’t get a power adaptor with the modem, please find
a power adaptor meet above spec.
of the plug is positive polarity and outside of the plug is negative
polarity. If you didn’t get a power adaptor with the modem, please find
a power adaptor meet above spec.