SYNTRAN (SYNchronous TRANsmission)

A standard developed at Bellcore for synchronous

add/drop multiplexing (ADM) at rates up to 45 Mbps (T3) on the basis of a single master clocking source, which allowed the elimination of stuff bits and, thereby, reduced overhead. SYNTRAN also allowed DS-0s and DS-1s to be added to, i.e., multiplexed directly into, and dropped from, i.e., demultiplexed directly from, a DS-3 frame, thereby eliminating the intermediate DS-2 level. SYNTRAN formed the basis for the Synchronous Optical Network (SONET) standard. See also ADM, Bellcore, DS-0, DS-1, DS-2, multiplexer, overhead, SONET, stuff bit, synchronous, and T3.

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• logical
• logical IP subnetwork (LIS)
• logical reach
• logical topology
• Logical Unit (LU)
• login
• log (logarithm)
• logodaedaly
• logon
• logophobia
• LOH (Line OverHead)
• long distance
• long haul circuit
• longitudinal redundancy checking (LRC)
• long wavelength band (L-Band)
• long wavelength (LW)
• loop
• loop
• loopback address
• loopback address
• loopback test
• loop current
• loop start
• loose-tube cable
• LOS (Line-of-Sight)