ADTRAN HDSL2 - Manual (Page 52)

Control Port Operation HDSL2 for General Distribution Installation and Maintenance Practice
42 61223HDSL2L2-5B
General Information
The General Information screen (
Figure 43 ), from the main Troubleshooting screen, provides
a summary of the deployment guidelines necessary to provision this HDSL2 circuit.
Figure 43. General Information Screen
Circuit ID:HNTSVLALHDSL2 03/01/05 09:29:45
Press ESC to return to previous menu
HDSL2 Loop Guidelines for optimum operation
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Non-loaded cable pair
Single bridge tap < 2Kft
Total bridge taps < 2.5Kft
Bridge tap within 1000ft of transceiver may affect performance.
Impulse noise < 50dBrnF (F filter)
Wideband noise < 31dBrnF (f filter)
Power influence <= 80 dBrnC
Longitudinal Balance >= 60dB (If using Wideband test at 196 Khz >= 40dB)
Foreign DC Voltage (t-r,t-g,r-g) < 3VDC
Loop Resistance <= 775 ohms
Margin >= 6 dB
Attenuation <= 28 dB