Digital subscriber lines

Question 1

What did research show that twisted pair copper wires could do?

Answer 1

transmit more data than what was needed for voice to voice calls.

Question 2

DSL

Answer 2

a technology that could send more data across the wire than traditional dial-up technologies. It did this by operating at a frequency range that didn’t interfere with normal phone calls.

Digital subscriber line.
This allowed for normal voice phone calls and data transfer to occur at the same time on the same line.

Question 3

DSLAMs

Answer 3

Digital subscriber line access multipliers. The DSL version of a modem. Establish data connections across phone lines, but unlike dial-up, they are usually long-running.

Question 4

Long running connection, for a DSLAM

Answer 4

the connection is established when the DSLAM is powered on and isn’t torn down until the DSLAM is turned off.

Question 5

Former most common DSL:

Answer 5

ADSL and SDSL

Question 6

ADSL

Answer 6

Asymmetric Digital Subscriber Line. different speeds for outbound and incoming data. faster download and slower upload.

Question 7

Why is ADSL good for home users?

Answer 7

They rarely need to upload as much data as they download, since they are mostly clients. Lower cost, for a good experience most of the time.

Question 8

SDSL

Answer 8

symmetric digital subscriber line. upload and download speeds are the same. mainly used by businesses in the past, which hosted servers that needed to send data to clients.

Question 9

SDSL is now

Answer 9

more common for both home and business.

Question 10

SDSL technology ordinary cap

Answer 10

1.544 megabits per second, same as a t1 line.

Question 11

Further developments of SDSL technology

Answer 11

HDSL, high bit rate digital subscriber lines

Question 12

HDSL

Answer 12

DSL technologies that provision speeds above 1.544 megabits per second.

Question 13

how to know more about a dsl line

Answer 13

contact your isp.