TMC2005 Datasheet PDF - SMSC -> Microchip

GENERAL DESCRIPTION
When configuring a network, the maximum number of nodes and the maximum cable length are limited by the electric capacity of the transceiver. In this case, the network is expanded by an equipment called a “HUB” or “repeater”. It maybe necessary to have a converter between coax, T/P and the fiber cable. It is easy to design a HUB or a repeater because the TMC2005 has various features for expanding such network.

FEATURES
◾ HUB Circuit for ARCNET Protocol (Data Rate From 156.25Kbps to 10Mbps)
◾ Able to Connect Various Transceivers Directly
◾ Device Includes TX/RX Timing Circuit for 5 Port Hub and Direction Control Circuit, Jitter Correct Circuit and Noise Cancel Circuit
◾ Easy to Design 8 or 12 Port Hub
◾ Can Connect with HYC9068 or HYC9088 in Normal Mode
◾ Can Connect with RS485 Transceiver, HYC2485S, HYC2488S, Opt Module and TTL Interface in Backplane Mode
◾ Supports both Normal and Backplane Mode at the Same Time for Media Conversion
◾ + 5V Single Power