Product category: EMC Components
News Release from: Focus EDL | Subject: B8841NL and B8846NL
Edited by the Electronicstalk Editorial Team on 16 August 2007
DSL filters have all standards covered
High-density lowpass splitter/filter modules for VDSL2 applications can also be used in ADSL and ADSL2+ installations.
Focus EDL has a new series of xDSL high-density lowpass splitter/filter modules suitable with very-high-bitrate digital subscriber line (VDSL2) applications Although designed for VDSL2, these new modules from Pulse can also be used in ADSL and ADSL2+ applications
This article was originally published on Electronicstalk on 28 Feb 2005 at 8.00am (UK)
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The new B8841NL complies with the ETSI (European Telecommunications Standards Institute) 600ohm real impedance standard, and the B8846NL meets the ETSI option B and BT (British Telecom) SIN-346 complex impedances.
Combining two standards in one module allows the B8846NL to replace two smart modules, the B8048E and the B8546E, with one.
The modules separate voice and data in xDSL applications.
The B8841NL and B8846NL modules are 17 x 13mm which is one-third the sise of standard smart modules, saving valuable board space.
Because they can carry frequencies up to 30MHz, rather than the 2.2MHz for smart modules, they can be used for the latest broadband wireline standard VDSL2 to provide triple play (voice, video, data) services such as high-definition television (HDTV) and interactive gaming.
Pulse's lowpass splitter/filter modules are constructed without a housing and use fewer inductors than were required by the smart modules to achieve the same functions, making them more cost-effective.
The modules are RoHS-6 compliant.
The splitter/filter modules are pin-to-pin compatible, so the same board layout can accommodate different standards for different countries just by changing the component model.
They are also turnkey - fully tested with ready-to-use electrical modules, meaning system integrators need only add the mechanical functions to the splitter board.
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