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Configuration Guidelines
The cable topology rules for Token Ring are shown
below:
Media
Category 3 UTP
Category 4, 5 UTP
Type 1 STP
Power Supply and Fuse
The Switch 2000 TR automatically adjusts to the sup-
plied voltage. The fuse is suitable for either 90-110V
A.C. or 220-240V A.C. A spare fuse is provided in the
fuse drawer.
Replacing the Fuse
Refer to Figure 2-1 for the location of the fuse. When
necessary, replace the Switch 2000 TR fuse with a
fuse that has the following specifications:
250 volts — 4A Slo-Blo
Power down the Switch 2000 TR by removing the AC
1
power cord or the Redundant Power System cords.
Gently pry open the fuse holder cover with a small
2
flat-blade screwdriver.
4 Mbps
16 Mbps
660 ft/200m
330 ft/100m
1,320 ft/400m
660 ft/200m
2,000 ft/600m
1,000 ft/300m
Installing the Slide-in Modules
Fuse location
AC connector
Figure 2-1 Switch 2000 TR Fuse Location
Slide out the fuse holder drawer and remove the fuse.
3
Install the replacement fuse and close the fuse
4
drawer.
Re-insert the power cord and apply power.
5
Installing the Slide-in Modules
This section explains how to install the three optional
modules into a SuperStack II Switch 2000 TR device.
The modules are:
ATM
FDDI
TR-in-FE
2-3
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