Cisco Catalyst 3550

Chapter 2 Installing and Starting the Switch
Connecting to DC Power
2-28
Catalyst 3550 Multilayer Switch Hardware Installation Guide
78-11358-03
Figure 2-26 Torquing Ground-Lug Screws
Wiring the DC-Input Power Source
Warning Only trained and qualified personnel should be allowed to install or replace this
equipment.
Warning Before performing any of the following procedures, ensure that power is
removed from the DC circuit. To ensure that all power is OFF, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit
breaker to the OFF position, and tape the switch handle of the circuit breaker in
the OFF position.
C
O
NS
OLE
36 - 72V
1 - 0.5A
A
B
65804
Torque to 15 lbf-in.