Maintenance; Table 12. Hdsl2 Loss Values - ADTRAN HDSL2 Installation And Maintenance Practice

Maintenance

Loop loss per kilofoot for standard wire gauges is summarized in
An approximation for the maximum amount of wideband noise as measured using an F filter
on an HDSL2 loop having 35 dB loss is < –47 dBrnF.
An approximation for the maximum level of impulse noise as measured using an F filter on an
HDSL2 loop having 35 dB loss is
For additional information on these and other deployment issues, refer to Supplemental
Deployment Information for HDSL, HDSL2, and HDSL4 (HDSLx), document number
61221HDSLL1-10.
These approximations are to be used as guidelines only and may
vary slightly on different loops. Adhering to the guidelines should
produce performance in excess of 10
MAINTENANCE
The HDSL2 products detailed in this document do not require routine maintenance. In case of
equipment malfunction, use the front panel bantam jack connectors to isolate the source of
the problem.
ADTRAN does not recommend that repairs be performed in the field. Repair services may be
obtained by returning the defective unit to ADTRAN. For more information, refer to
D, Warranty".
52

Table 12. HDSL2 Loss Values

Cable Gauge Cable
Type
26 PIC
26 Pulp
24 PIC
24 Pulp
22 PIC
22 Pulp
19 PIC
19 Pulp
–38 dBrnF.
≤
HDSL2 for General Distribution Installation and Maintenance Practice
Temperature
68°F 90°F
3.902 4.051
4.030 4.179
2.863 2.957
3.159 3.257
2.198 2.255
2.483 2.545
1.551 1.587
1.817 1.856
NOTE
-7 BER.
Table 12.
120°F
4.253
4.381
3.083
3.391
2.333
2.629
1.634
1.909
"Appendix
61223HDSL2L2-5B