Bnc Port And Coaxial Thin Cable; Aui Port - Planet EH-1600 User Manual

cable should have a nominal impedance of 100 ohms at 10 MHz,
a maximum segment loss of 11.5 dB between 5 and 10 MHz, and
a maximum end-to-end propagation delay of 1 microsecond. You
can use a STP/UTP cable that complies with AT&T's Premises
Distribution System (PDS) wiring standard.
For hub to hub STP/UTP cascading, the limitation in cascading
is no more than 5 hubs.

BNC port and Coaxial Thin Cable

The BNC, thin coaxial port can be connected to either a
computer or another hub. In order to use the thin coaxial port,
you will need one thin coaxial cable, two 50-ohm terminators
and T-connectors.
Thin coaxial cable is a 50-ohm coaxial cable with a copper or
tinned center conductor, solid inner dielectric (insulating
material), and braided wire (not foil) shielding. It can be an RG-
58, RG-58/A, RG-58/U, or RG-58A/U cable.

AUI port

The AUI port of EH-1600, beside the feature of BNC port, can
be connected to external transceivers, like AUI to BNC, AUI to
TP, or AUI to fiber-optic transceiver, and then connected to a
computer, a hub or another repeater.
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PLANET Ethernet Hub