• Supports DOCSIS 3.1 today as RF amplifiers, optical node or remote PHY node
  • Lowest power consumption in the industry
  • Latest GaN 2.5 technology ensures a future-proof solution for digital transport

The DBx access platform: a modular platform that allows the migration of an RF amplifier to a fibre node and also to a Remote PHY and FTTx access gateway

DBx rangeThe Technetix DBx-1200 Access Platform is an innovative crossover design offering a wide range of RF amplifiers, Optical nodes and Remote PHY nodes.

With over half a million units delivered world-wide, it has become the world leading access platform in the market today.

Ever since the first RF amplifier was released in 2013, MSO’s were interested in the upgrade options of the platform and to this day are still benefiting from a large return on investment upgrading the RF amplifiers to optical nodes or even remote PHY nodes.

The DBx access platform offers configurations in cabinet style and strand (pole) mounting style. The modular approach enables flexible configurations such as hybrid optical node/RF amplifier configs or remote PHY with analogue overlay.

The DBx platform offers operators a flexible solution growing with the demand of their consumers. This is done through either lid upgrade kits with remote PHY or analogue receiver and transmitter modules to perform node splits inside of your already existing DBx product to name some examples.

Platform features

  • DOCSIS 3.1 compliant upstream and downstream
  • Full modular design
  • Power efficient
  • Field upgradeable diplex filters offered in 42/54, 65/85, 85/102, 85/105, 204/258 MHz band splits
  • Latest GaN technology with high output power
  • Optional on-board EU/US DOCSIS 3.0 transponders

RF features

  • Full digital control of equalisers and attenuators in both upstream and downstream
  • On-board ingress detection switches in upstream modules for each individual leg
  • Wide selection of RF modules for all network applications

Optical features

  • Upstream lasers in 1310, 1550 and CWDM
  • Wide range of optical input power in downstream receiver -5 dBm to +1 dBm including optical AGC
  • Power efficient
  • On-board ingress detection switches in upstream transmitter


RF configuration

The DBx RF modules are designed around both star and cascade networks. Using dedicated downstream gain modules for cascade application allows you to customise your network. For exceptionally long cascade networks, dedicated flatness correction plug-in modules are available to optimise the overall frequency response. Fixed deviation in frequency response accumulates in cascade networks (despite the flatness deviation of the cascaded downstream modules of +0.4 dB across the entire downstream frequency range) and it is recommended that the flatness correction plug-in is used for optimal network performance after five amplifiers.

The diagram below describes the use of the different gain downstream modules in an N + 4 scenario:

DBx RF configuration diagram

When installing high-gain modules (ie 44 dB) in shorter cable length applications, you have to attenuate more signal after amplification. Using lower-gain modules keeps attenuation requirements to an absolute minimum, resulting in better network performance.

Our amplifier gain downstream modules are pre-aligned with 20 dB coax, other amplifiers are aligned with 0 dB coax and therefore, the flatness in frequency response is aligned further from the actual application. Our amplifiers are pre-aligned with coax, improving overall network performance.


Optical configuration

The optical transmitter and receiver modules are deployed in scenarios where the DBx is used as an optical fibre node. The optical receiver has a wide optical range, which spans from -5 dBm to +1 dBm, which is suitable for any application. The receiver module is equipped with the latest GaN 2.5 technology for maximum output power.

DBTX-A-1
DBTX-A-1
DBRX-A-1
DBRX-A-1

The transmitter module can hold two laser boards with standard 1310 nm/1550 nm/CWDM wavelengths in -3/0/3/6 dBm output power. The laser boards are available in DFB and CWDM and by default, these are supplied with SC/APC connectors (available as small plug-in modules). The DBRX optical receiver can receive any type of optical signal from 1100 to 1650 nm, in CWDM configuration.