Allied Telesyn BNC-Fibre (SMA) Micro Repeater

Allied Telesyn MR127F

Review & Specification:

The CentreCOM Micro Repeaters provide the complete functionality of large repeaters, including packet regeneration and network partitioning. The packet regeneration results in a higher performance network by regenerating preamble, retiming the data packets and extending collision fragments to ensure collision enforcement by all nodes. These CentreCOM Micro Repeaters are two port media converters designed for the Fiber Optic Inter Repeater Link (FOIRL) to coaxial cable media market place. These micro repeaters allow for connection of a FOIRL segment to either a thin (10BASE2) coaxial segment with the AT-MR127F, or to an AUI (10BASE5) coaxial segment with the AT-MR126F. Segments on either side of the unit support full-length, fully repeated transmission and allow the maximum number of nodes specified by the IEEE.

The AT-MR126F (AUI to FOIRL) and AT-MR127F (BNC to FOIRL) have a selectable switch for full or half repeater mode. In the full repeater mode, each repeater counts toward the total repeater count specified by IEEE 802.3. In certain situations, (i.e. connections between buildings using the FOIRL ports), fully repeated functionality is not needed. The half repeater mode allows a pair of repeaters to count as one repeater linking the two networks together.

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