Installing the Slide-in Modules 2-3

Configuration Guidelines

The cable topology rules for Token Ring are shown
below:

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
1Power down the Switch 2000 TR by removing the AC
power cord or the Redundant Power System cords.
2Gently pry open the fuse holder cover with a small
flat-blade screwdriver.
Figure 2-1 Switch 2000 TR Fuse Location
3Slide out the fuse holder drawer and remove the fuse.
4Install the replacement fuse and close the fuse
drawer.
5Re-insert the power cord and apply power.
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
Media 4 Mbps 16 Mbps
Category 3 UTP 660 ft/200m 330 ft/100m
Category 4, 5 UTP 1,320 ft/400m 660 ft/200m
Type 1 STP 2,000 ft/600m 1,000 ft/300m
Fuse location
AC connector