BRX-VDSL2 User Guide
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3.5.4 Minimum and Maximum Distance Values for the BRX-VDSL2 Calculator
To facilitate the planning process, the BRX-VDSL2 Calculator will provide a warning in red whenever
a distance or loop length value entered does not meet the proper range of allowed values to ensure
proper and useful performance. These criteria, for 24 AWG (0.51 mm) cables, are:
1) Minimum Loop Length from DSLAM to BRX-VDSL2 (L1) should be no less than: 2,000 feet (600
meters).
2) Minimum Loop Length from CPE to BRX-VDSL2 (L2) should be no less than: 500 feet (150m).
In addition, a red warning will pop up if the Total Loop Length is less than 4000 feet (1.2 km) or more
than 8,000 feet (2.4 km) for the BRX-VDSL2 or 10,000 feet (3.0 km) for the BRX-VDSL2-X. It is
important to note that the product is still operational but the amplification results will not be optimal
outside of the recommended operating range.
1) Maximum distance for 25 / 4 Mbps service: 6000 feet (1.8 km) with BRX-VDSL2 or BRX-VDSL2-X
2) Maximum distance for 10 / 1 Mbps service: 8,000 feet (2.4 km) with BRX-VDSL2-X
