Cisco 3750G-12S - Catalyst Switch - Stackable Hardware Installation Manual page 122

Connecting to DC Power
Wiring the DC-Input Power Source
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Warning
Statement 1003
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that
Warning
the protective device is rated not greater than: 5 A Statement 1005
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Statement 1030
You must connect the Catalyst 3750G-12S-SD switch only to a DC-input power source that has an input
Caution
supply voltage from –36 to –72 VDC. If the supply voltage is not in this range, the switch might not
operate properly or might be damaged.
The switch must be installed with 5 A-branch-circuit protection.
Caution
This installation must comply with all applicable codes.
Note
To wire the switch to a DC-input power source, follow these steps:
Step 1 Apply tape to the circuit-breaker switch handle, and move the circuit-breaker handle to the off position.
Locate and remove the terminal block plug (see
Step 2
Figure C-4
Catalyst 3750 Switch Hardware Installation Guide
C-4
Terminal Block Plug
Appendix C
Figure C-4).
Connecting to DC Power
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