I moved over the last couple of weeks and the new property had a structured cabling cabinet, but no master splitter.
To get things up and running quickly I used a standard ADSL splitting off a phone jack and got the following performance.
DSL Type: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 801 / 14.741
Data Transferred (Sent/Received) [kB/kB]: 0,00 / 0,00
Output Power (Up/Down) [dBm]: 10,5 / 19,0
Line Attenuation (Up/Down) [dB]: 14,5 / 26,0
SN Margin (Up/Down) [dB]: 6,0 / 6,0
Vendor ID (Local/Remote): TMMB / BDCM
Loss of Framing (Local/Remote): 27 / 0
Loss of Signal (Local/Remote): 8 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 4 / 0
FEC Errors (Up/Down): 56 / 18.759
CRC Errors (Up/Down): 56 / 301
HEC Errors (Up/Down): 155 / 10
At the weekend I installed an xDSL master splitter plus connected the modem directly in the structured cabling cabinet in the garage. Approx 50% boost in upload and a reasonable boost in download. It will be interesting to see how this improves as DLM kicks in
DSL Type: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 1.221 / 16.578
Data Transferred (Sent/Received) [kB/kB]: 0,00 / 0,00
Output Power (Up/Down) [dBm]: 10,0 / 18,5
Line Attenuation (Up/Down) [dB]: 14,0 / 25,0
SN Margin (Up/Down) [dB]: 7,0 / 6,5
Vendor ID (Local/Remote): TMMB / BDCM
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 0 / 0
FEC Errors (Up/Down): 0 / 108
CRC Errors (Up/Down): 0 / 0
HEC Errors (Up/Down): 1.008 / 0