Powering On the Catalyst 3920
Catalyst 3920 Token Ring Switch User Guide
3-8
Figure 3-6
Connecting the Stack Port Cable to Port 1 of the Catalyst Matrix
Step 2
Attach the other end of the cable to the stack port of a Catalyst switch (Figure 3-7). Repeat
these steps for each Catalyst switch using the next lowest numbered port on the Catalyst
Matrix.
Figure 3-7
Connecting the Stack Port Cable to the Stack Port on the Catalyst 3920
Powering On the Catalyst 3920
Warning
This product relies on the building’s existing wiring installation for short-circuit (overcurrent)
protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A
international) is used on the phase conductors (all current-carrying conductors).
Warning
This equipment is intended to be grounded. Ensure that the host is connected to an earth ground
during normal use.
Warning
This unit might have more than one power cord. To reduce the risk of electric shock,
disconnect the two power supply cords before servicing the unit.
To power on the Catalyst 3920 and to verify that it is operating correctly, perform the following
steps:
Step 1
Connect the power cord to the Catalyst 3920 and then to an electrical outlet. The
Catalyst 3920 is powered on when you plug in the power cord. There is no power switch.
Step 2
If you are using an RPS system, connect the RPS port of the Catalyst 3920 to the RPS
system.
PORT 7
PORT 8
PORT 5
PORT 6
PORT 3
PORT 4
PORT 1
PORT 2
P7 P5 P3 P1
P8 P6 P4 P2
H5483
10148
EIA 232
RPS Present
RPS Good
INT PS GOOD
100-127 v~
200-240 v~
