NetComm G.SHDSL 4-port Security Modem Routers NB712 - Manual (Page 96)

96 NB712 / NB714 User Guide
YML829 Rev1
14.16.2 SHDSL
You can setup the SHDSL parameters by the command shdsl. Move the cursor “ >> “ to shdsl and press enter.
>> mode Configure SHDSL mode
Link Configure SHDSL link
n*64 Configure SHDSL data rate
type Configure SHDSL annex type
clear Clear current CRC error count
margin Configure SHDSL SNR margin
There are two types of SHDSL mode, STU-R and STU-C. STU-R means the terminal of central office and STU-C
customer premises equipment.
Link type will be 2-wire or 4-wire mode according to the product. 4-wire product can be worked under 2-wire
mode.
You can set the data rate in multiples of 64Kbps where n is from 0 to 32. If you configure n to 0, the product will
perform in adaptive mode.
There are two types of SHDSL Annex type, Annex-A and Annex-B.
Clear command can clear CRC error count.
Generally, you do not need to change the SNR margin, which ranges from 0 to 10. The SNR margin is an index of
line connection. You can see the actual SNR margin in STATUS SHDSL. The larger the SNR margin, the better the
line connection. If you set SNR margin in the field as 2, the SHDSL connection will drop and reconnect when the
SNR margin is lower than 2. I.e., the device will reduce the line rate and reconnect for better line connection.