AT-3624TR/3648TR Installation Manual - Allied Telesis

CentreCOM 3600 Series Hub/Repeaters
10BASE2 Wiring Specifications
10BASE2 (or thinnet) requires a thin coaxial cable, RG58. RG58 is a
10 MHz, baseband cable connected with BNC-series connectors. The cable
must be terminated with 50 Ω terminators and grounded at one end.
Maximum segment length is 185 meters (606 ft.).
Thinnet coaxial cable is plugged directly into the BNC receptacle for Ports
1 through 8. Next to each of these ports is a 50 Ω termination switch. If
you install a BNC-T connector with a 50 Ω resistor like the one shown in
Figure 32, you must disable the ports’ internal termination by turning the
switch OFF).
Figure 32: BNC-T at End of
10BASE2 Segment
If you install a coaxial cable segment without a BNC-T connector at the
end (as shown in Figure 33), you must enable the internal termination of
the port by turning the 50 Ω termination switch ON.
Figure 33: BNC Connector
33