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Home Products Actelis Networks Broadband Amplifiers VDSL2 Broadband Amplifier (VBA)

VDSL2 Broadband Amplifier (VBA)

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VDSL2 Broadband Amplifier (VBA)

VDSL2 Broadband Amplifier (VBA)

Actelis Networks Broadband Amplifiers (BBA) are field proven, high-performance solutions that enable service providers and enterprises to extend and expand the delivery of high-bandwidth, high-quality Carrier Ethernet services over DSL (VDSL2, ADSL/2/2+). In fact, Actelis BBA products have demonstrated overall rate gain downstream improvements of greater than 100% over non-amplified lines. The Actelis VDSL2 Broadband Amplifier (VBA) enables service operators to significantly enhance VDSL2’s bandwidth, reach, and business case. Used in residential applications to provide higher speed broadband and triple play services over a single pair that reach more customers, the VBA is also used to extend the rate and reach of VDSL2 EFM over Copper ("bonded copper") links, providing Ethernet services to the small and medium business or small cell or WiFi backhaul applications using anywhere from 1 to 8 pairs. An automated, plug 'n play device, the VBA is line powered from POTS current from the CO, features a low power draw, and can be flexibly placed at any convenient splice or termination point between the DSLAM and DSL modem.

The VBA is fully compatible with vectoring and additive to its performance gains, or can be used on a standalone basis to provide a significant boost to VDSL2 distance and bandwidth. Compatible with any vendor's DSLAM or DSL modem equipment in the installed base, the VBA is also compatible for use on the same pair with POTS and ISDN services.  Featuring a robust and reliable hardened design, should a VBA nonetheless fail for any reason, it simply removes itself from the loop and allows POTS, ISDN, and VDSL2 services (without the VBA's added performance benefits) to continue to operate. By increasing the speed and distance of VDSL2 services, the VBA effectively increases the size of a DSLAM's customer serving area. Doing so without requiring a major CapEx investment changes the game for cost efficient broadband builds and rapid time to market.


  • Enables 25 Mbps services to 8 kft / 2.4 km (with vectoring)
  • Improves bandwidth up to 100% out to approximately 4 kft (1.2 km)
  • Doubles distance and increases bandwidth over 200%, at distance between 4 and 8 kft (1.2 - 2.4 km)
  • Reduces the number of small DSLAMs required
  • Cuts site acquisition, cabinet requirements, and install costs
  • Enables larger, more cost efficient DSLAMs to be used
  • Reduces the number of "stranded" DSL ports
  • Enables roll out of high speed broadband more quickly and easily
  • Reduces CapEx requirements significantly
  • Maximizes the amount of bandwidth possible per pair
  • Extends distance to offer business Ethernet services to SMBs over 1-8 pairs
  • Designed for efficient OAM, manageability and optional use of local power

VDSL2 Broadband Amplifier (VBA)


Leverages Existing Infrastructure:

  • Interoperable with standard based VDSL2 equipment and IPTV infrastructure
  • Supports single pair and bonded VDSL2 links
  • Agnostic to choices of DSLAM, CPE, and voice switch equipment
  • Fully standards and spectrally compliant
  • Transparent to DSLAM vectoring technology

Easy to Install & Manage:

  • Field replaceable Gas Discharge Tube primary protection for easy maintenance
  • Miniscule power consumption using POTS power already on the line without requiring additional dedicated pair and power supply
  • Passive Node technology - no provisioning and no EMS / OSS integration efforts needed
  • Supporting short R-side loops, allowing multiple loops served from a single location
  • No changes or configuration of CO or CPE required

Bandwidth Plan Supported: Band Plan 998, Annex A
Robust, Reliable Solution:

  • VBA does not impact POTS or other analog services (e.g. Fax, caller ID)
  • Environmentally hardened and IP68 for extreme environments
  • Very high MTBF
  • Hardware metallic bypass provides POTS testing with traditional MLT
  • Lightning Protection: Primary and Secondary protection for overvoltage

Power, Voltage:

  • POTS Voltage: -48V nominal
  • Power: 100mW
  • Preserves the required off-hook loop current at CPE
  • Less than 2mA POTS leakage current when operating in on hook mode

Temperature & Operating Conditions:

  • Temperature: -400C to +650C or -400F to +1500F
  • Relative Humidity: Up to 95% non-condensing


  • No active management required, optional (future) remote management card available for 24 port enclosure
  • Local management access port per card
  • Compatible with Actelis BBA Flash Tool

Regulatory Approvals/Certifications:

  • Compatible with ITU G.993.2
  • CE–EMC and safety compliant
  • Complies with UL- 60950, FCC part 15 class B and FCC part 68
  • WEEE, ROHS compliant


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