Allied Telesis AT-MR128FT CentreCOM 2-Port Micro Repeater

These CentreCOM Micro Repeaters are two-port media converters designed for the Fiber Link (FL/FOIRL) to Unshielded Twisted Pair (UTP) media marketplace. They allow for connection of a 10BaseFL/FOIRL segment to a UTP (10BaseT) segment. Segments on either side of the unit support full-length, fully repeated transmission and allow the maximum number of nodes specified by the IEEE. These media converters utilize state-of-the-art technologies including a custom Application Specific Integrated Circuit (ASIC) and Surface Mount Technology (SMT), which provides enhanced functionality, increased reliability and improved performance. 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. The use of a custom ASIC and either an internal or external power supply makes the Allied Telesis' Micro Repeaters compact and easy to install. The units' small size allows for the repeater function to be brought to the desktop or used in a wall mount installation. Both the AT-MR118FT and AT-MR128FT 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 FL/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. Network diagnostic LEDs are provided on the front of the CentreCOM Micro Repeaters to aid in troubleshooting and fault isolation. Both segments have "Transmit," "Receive," "On Line" and "Collision" indicators, as well as "Link Integrity Test" LEDs. All units also have a "Power" LED.