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Computing (FOLDOC) dictionary
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networking, hardware, cable (Or "thicknet" - "thick
Ethernet") The original "full spec" cable, used for
10base5 Ethernet networks. RG8 is stiff, large diameter
coaxial cable with an impedance of 50 ohms, a member of
the "Radio Guide" series. The outer sheath is usually yellow,
to indicate double shielding, so it is often just called
"yellow cable".
10base5 cable is designed to allow transceivers to be added
while existing connections are live. This is achieved using a
"vampire tap" - a device which (with sufficient practise)
clamps onto the cable, forcing a spike through the outer
shielding to contact the inner conductor while other spikes
bite into the outer conductor. This is often built into the
transceiver and a more flexible multi-wire cable carries the
connection between the transceiver and the node.