bit-robbing

(redirected from Robbed-bit signaling)
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bit-robbing

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References in periodicals archive ?
These processors are presently used for tone detection in T1 Robbed-Bit Signaling environments.
Digital lines in American, Canadian, and Japanese PSTNs use the T1 protocol, allowing for transmission at 1,544 Kbps over 24 channels with AB robbed-bit signaling. Digital lines in the rest of the world use the E1 protocol, allowing for transmission al 2,048 Kbps over 32 channels -- two of which are reserved for ABCD signaling.
While robbed-bit signaling imposed an imperceptible distortion when the least-significant bit in each of the 24 DS0 channels of every sixth frame was stolen for a signaling indicator, the ESF format imposes no penalty except that more frames must be examined before synchronization can be established.