Topology
24
Figure 13: AT-MR820TR Four Cascaded Repeaters
The Four-Repeater Rule.
The IEEE 802.3 standard provides general
rules for 10Base-T cable length and network connections on single
segments of cable or on point-to-point links with media attenuation
and signal propagation delays. The basic rule applies for all networks.
The maximum number of repeaters in the data path between any two
nodes cannot exceed four.
BNC Terminator Switch
The BNC Terminator switch is located on the rear panel to the left of
the BNC connector. Use this switch to enable or disable internal
termination at this end of the 10Base2 segment.
If you are installing BNC-T connectors in the center of a segment, the
termination switch must be disabled (OFF). The general rule is to
terminate at each end of the cable segment. If the cable is connected
directly into the port without a T-connector (end of segment), turn ON
MRx20TR(STP/UTP)_BookA Page 24 Thursday, April 3, 1997 5:24 PM
