Cisco Catalyst 3920 Installation Manual page 4

Setting Up the Catalyst 3920
Figure 3-1
5x8 mm
screws
Step 4
Figure 3-2
Step 5
Warning
recommended ambient temperature of 104 F(40 C).To prevent airflow restriction, allow at least 3 inches (7.6
cm) of clearance around the ventilation openings.
Figure 3-3
PWR
MODE
FAULT
RESET
SYSREQ
3-4 Catalyst 3920 Token Ring Switch User Guide
Attaching the Mounting Brackets
PWR
MODE
FAULT
RESET
SYSREQ
Position the Catalyst 3920 in the rack or cabinet and slide it up or down until the rack
holes line up with the bracket holes. Attach the Catalyst 3920 to the rack with the
appropriate mounting screws (see Figure 3-2).
Mounting in a Rack or Cabinet
PWR
MODE
FAULT
RESET SYSREQ
Go to the instructions in the "Cabling the Catalyst 3920" section.
To prevent the switch from overheating, do not operate it in an area that exceeds the maximum
Clearance Recommendations
3.0 inches
(7.6cm)
3.0 inches
(7.6cm)
PWR
MODE
FAULT
RESET SYSREQ
PWR
MODE
FAULT
RESET
SYSREQ
T = 104 F (40C) Max
A
PWR
MODE
FAULT
RESET SYSREQ
3.0 inches
(7.6cm)