Positron BRX-VDSL2-8 – IP65 sealed enclosure (BRX-VDSL2-8-C) with 4 xBRX-VDSL2-M modules (total 8 amplified VDSL2 pairs)



The BRX-VDSL2 fills the gap when fiber is not cost effective. It can be used on single pairs and is fully transparent to pair bonding. It delivers a fiber-like user experience so customers can enjoy top quality video streaming with multiple HD feeds and still have enough bandwidth to simultaneously surf the web and use other applications. The increase in the available bandwidth capacity on existing last mile infrastructure results in higher ARPU, lower attrition and increased customer satisfaction at a low cost.

BRX-VDSL2 Extended Service diagram

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Amplification Range 4,000 – 8,500 feet (1.2 – 2.6 km) (24 AWG) 4,000 – 10,000 feet ( 1.2 – 3 km) (24 AWG)
Distance for 25/3 Mbps on single pair 24 AWG (0.50 mm) 6,000 feet (1.8 km) (Non-Vectored and Vectored) 6,500 feet (2 km) (Non-Vectored and Vectored)
Distance for 50/8 Mbps on 2 pairs 24 AWG (0.50 mm) 6,000 feet (1.8 km) (Non-Vectored and Vectored) 6,500 feet (2 km) (Non-Vectored and Vectored)
VDSL2 Range Extension 1,500 feet (457 meters) Up to 2,250 feet (685 meters)
CSA Expansion 77% 200%
Amplification Ratio Up to 1.2 Downstream / up to 4.0 Upstream 1.2 to 1.9 Downstream / up to 4.1 Upstream
Form Factor Same form factor, each pair has two (2) LEDs to indicate presence of current and loop status
Enclosure Options Available in 1, 2, 8, 24 and 48 pairs enclosures
Management Manageable (Detection, Location, Alerting, Troubleshooting) via integration with ASSIA DSL Expresse© and with Nokia Network Analyzer Copper (NAC)©
Operation over POTS Pairs 100% compatible with presence of active POTS line. Limited current consumption to guarantee compliance with POTS devices100% Requires BRX Power Injector to guarantee 100% compliance with POTS devices
Operation over Dry Pairs (no -48 Vdc Sealing CurrentPresent) BRX power injector can be used to power the BRX-VDSL2 models
Feature Description
xDSL Standards  ITU-T G.993.2 VDSL2, ITU-T G.993.5 (G.vector), ITU-T G.997.1 (G.ploam), ITU-T G.998.4 (G.INP), ITU-T G.992.5 ADSL2+ Annex A, ITU-T G.992.3 ADSL2 Annex A, ITU-T G.992.1 ADSL Annex A
PSD Mask Compliance  Compliant with ANSI T1.413 and ETSI TS 101 830-1
Signal to Noise Ratio  Improves the Signal to Noise Ratio (SNR) up to 14 dB
Power Draw  Maximum power consumption is 400 mW per pair @ -48 V
Enclosure  Flexible IP65 design allows more subscribers to be added as needed. Available in 1, 2, 8,24 and 48 pair configurations
Over-current Protection  8/20 µsec, 10 kA (1 operation) 10/700 µsec, 6 kV, 300A (50 operations)
Regulatory Compliance  Tested to IP68, UL/CSA and FCC part 15 Class A WEEE and ROHS compliant
Operating Temperature  -40 to +65 °C
Relative Humidity  5% to 95%, non-condensing
Dimensions BRX-VDSL2-M: 8” x 5” (203 mm x 127 mm)
  BRX-VDSL2-2: 9.25” x 5.5” x 1.5” (235 mm x 140 mm x 38 mm)
  BRX-VDSL2-8: 11.5” x 5.5” x 4.7” (292 mm x 140 mm x 120 mm)
  BRX-VDSL2-24: 21.5” x 17” x 11” (546 mm x 432 mm x 280 mm)
Installation Location  Installed adjacent to a splice point or at cross connect cabinet in the Outside Plant (OSP)
Auto-Provisioning  Automatic gain control with no software or hardware configuration needed It self-adjusts to optimize the bandwidth based on loop length and line conditions
Number of Ports per Module Each BRX-VDSL2-M has two (2) independent copper pairs, 100% transparent to vectoring and pair bonding (if used)


Part Number Description
BRX-VDSL2-8  Includes 4 x BRX-VDSL2-M two-pair modules (total 8 pairs) in an IP65 enclosure