01-18-2008 10:23 PM - edited 03-03-2019 08:19 PM
I checked the following link.
T1 CSU/DSU and modem are layer 1 device
NIC is a layer 2 device, but SDSL module card requires an external modem.
What layer device ADSL and SDSL module, layer 1 or 2 device?
Solved! Go to Solution.
01-19-2008 01:40 PM
ADSL, SDSL, DSL are layer 1 , you may also find more detailed information at the ITU-T link bellow.
http://www.dslforum.org/aboutdsl/adsl_tutorial.html
Rgds
Jorge
01-19-2008 01:40 PM
ADSL, SDSL, DSL are layer 1 , you may also find more detailed information at the ITU-T link bellow.
http://www.dslforum.org/aboutdsl/adsl_tutorial.html
Rgds
Jorge
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