Allied Telesyn AT 3004SL

Allied Telesyn AT 3004SL ... Unit Interface (AUI) is provided for attachment to external transceivers. In this way, these repeaters allow for connection between the different media (thick or thinnet coaxial, fiber optic and twisted pair) with the choice of the appropriate transceiver.

The AT-3004SL provides four BNC interfaces and a single IEEE 802.3 AUI which provides easy attachment to the media. The CentreCOM Multiport Repeaters provide packet regeneration, which results in a higher performance network. Packet regeneration includes regenerating preamble, retiming of the data packets and extending collision fragments to ensure collision enforcement. Fault protection is provided by the CentreCOM Multiport Repeaters in two distinct ways. First, each segment will automatically disconnect itself when 32 consecutive collisions occur on the same segment. Secondly, jabber protection will automatically insert an idle state (10 µs duration) for packets over 5 ms, but less than 20 ms in length.