BRX-VDSL2 User Guide
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180-0153-001-R02
6.2
POTS / Voice Lines
Voice (POTS) signal, when present, is transparently handled by the BRX-VDSL2. The BRX-VDSL2
incorporates a POTS splitter function to allow the POTS traffic to flow normally while the VDSL2
signals is amplified to obtain the best possible performance over the Outside Plant (OSP). When
using a BRX-VDSL2-X version of the device, you will need to install a Positron BRX Power Injector to
allow for proper POTS (dial tone) operation on the pair amplified by the BRX-VDSL2-X device if
support for a POTS dial tone is required.
6.3
Equipment Connection Diagram
BRX-VDSL2 devices are typically deployed adjacent to a splice point facilitating the selection of the
VDSL2 pair(s) requiring bandwidth amplification.
The following diagram illustrates how a BRX-VDSL2 device can be inserted between a DSLAM or
MSAN and the subscribers it serves. Looking at the diagram below, the BRX-VDSL2 device is
typically installed at a distance of 2,000-4,000 feet (0.6 to 1.2 km) from the DSLAM and provides
increased bandwidth to a remote subscriber located up to 8,000 feet away (2.4 km) when using a
BRX-VDSL2 version and (10,000 feet away (3.0 km) when using a BRX-VDSL2-X) on a 24 AWG
(0.51 mm) copper loop.
Figure 15: inserting a BRX-VDSL2 device on a VDSL2 loop
Where L1: BRX-VDSL2 connection to the DSLAM and L2: BRX-VDSL2 connection to the CPE Modem.
