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B8ZSBipolar with 8-Zero Substitution
B8ZSBinary 8-Zero Substitution
B8ZSBipolar 8 Zero Substitution
B8ZSBit Eighth Zero Suppression
References in periodicals archive ?
Expanded capacity for DEX and EMX frames saves 67% of floor space -- SF or ESF formats and AMI, B7S or B8ZS line coding allows customization for additional network configurations -- Integrated tone detection and echo cancellation improves call quality and cuts cost -- Improved power supply design and low-power devices reduce power consumption by 67% to cut utility costs -- Universal shelf design reduces cabling and simplifies field configurations to lower labor and maintenance cost -- Total compatibility with existing trunk frames and cards prolongs equipment life by 3 to 5 years to reduce life-cycle cost -- Latest design with fewer components improves reliability and quality -- Compatibility with DEX and EMX switching systems reduces inventory and frees up valuable floor space
B8ZS allows 64-kb/s clear data per channel, inserting two violations of the bipolar line-encoding technique rather than one for every seven consecutive zeros.
It additionally provides AMI and B8ZS line coding options and 64 kb/s clear channel capability for data applications.
To provide the clear channel service, WilTel employs B8ZS (Binary 8 Zero Substitution) line coding, which maintains the "ones" density requirement in the transmitted bit stream.
Below that is a schematic representation of the bipolar bit stream without B8ZS for the bit values in the top row.
It additionally provides B8ZS line code and the ability to select 56 kb/s or 64 kb/s clear channel modes and Extended Superframe (ESF) capability.
Using the T Lite's transcoding feature, network administrators with equipment supporting only AMI line coding reap the benefits of B8ZS line coding.
The device supports B8ZS, HDB3 and AMI line codes while providing clock recovery and line performance monitoring in each of the receivers.
To further improve design flexibility, the CS61304A/305A operate either with internally implemented AMI (Alternate Mark Inversion), B8ZS (Bipolar with 8-Zero Substitution), or HDB3 (High Density Bipolar of order 3) coders/decoders, or the internal circuitry can be bypassed, allowing the devices to operate with external line coders/decoders.