Nortel 3510-24T Installing Manual page 15

Allow at least 2 inches (5.1 cm) on each side for proper ventilation and at least 5 inches (12.7 cm)
at the back for power cord clearance and ventilation.
Caution: Do not set a BayStack 10 Power Supply Unit on top of an Ethernet Routing
Switch 3510-24T. The BayStack 10 Power Supply weighs approximately 100 pounds (45
kg), and the switch housing is not strong enough to support this weight. (For translations
of this statement, see page 31.)
Installing the Ethernet Routing Switch 3510-24T
15