HYC9088A

The HYC9088A Twisted Pair and Coaxial Compatible High Impedance Transceiver (HIT) is a hybrid module that interfaces an ARCNET Local Area Network controller to one twisted pair or coaxial cable. The HIT interfaces directly with Standard Microsystems Corporation's ARCNET LAN controllers operating at 2.5 Mbps and connects to a variety of
shielded and unshielded twisted pair or coaxial cables via an on-board transformer. The network topologies supported by the HIT are daisy chain, star, and bus configurations.

During data of the HYC9088A transmission, the HIT converts the digital pulse information provided by the ARCNET LAN controller into
analog signals and drives them onto the cable. The transmitted signals are filtered to eliminate undesirable frequencies.

The receiver of the HYC9088A section of the HYC9088 identifies dipulse signals on the cable and converts them into TTL signals to be supplied to the ARCNET LAN controller.

The HIT supports ARCNET's Dipulse Encoding Scheme and, is 100% compatible with all existing coax-based ARCNET networks. This provides an ARCNET network designer with flexibility to easily combine coax and twisted pair cabling.