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Appendix B • • Technical Reference
~42~
For 10BASE-2 with repeaters, the longest distance from C360 Control Board to
the last Async Concentrator is about 1000 meters which is depicted as follows:
Specifications for 10BASE-2 thin coaxial cable are as follows:
v Cable characteristics: 0.2 inch diameter RG-58A/U 50 ohm
v Max. segment length: 185 meters
v Min. distance between two nodes: 0.5 meter
v Max. number of nodes per segment: 30
B.2 Async Concentrator and Serial Number
Inside Async Concentrator, each 16550C chip controls one port. The 16550C
is an advanced asynchronous controller capable of on-chip hardware flow
control and higher speed up to 460.8K bps.
Each Async Concentrator has its own unique serial number for identification.
Serial Number is the only way to locate the Async Concentrator and then serial
ports.
C360
AC
AC
AC
AC
AC
200 m
200 m
200 m
200 m
200 m
: Repeater AC : Async Concentrator