Cisco 3110 Hardware Installation Manual page 79

Installation, Maintenance, and Upgrade
Safety Warnings
Warning
Warning
Before you begin
• The color coding of the DC input power supply leads depends on the color coding of the DC power
• Make sure that the chassis ground is connected on the chassis before you begin installing the DC power
Step 1
Verify that the power is off to the DC circuit on the power supply module that you are installing.
Step 2 While supporting the power supply module with one hand, insert the power supply module into the power supply bay
and gently push it in. See the illustration above for the location of the handle.
Step 3
Use a wire-stripping tool to strip each of the two wires coming from the DC input power source. Strip the wires to
approximately 0.39 inch (10 mm) + 0.02 inch (0.5 mm). We recommend you use 14 AWG insulated wire.
Do not strip more than the recommended length of wire because doing so could leave the wire exposed from
Note
the terminal block.
Figure 51: Stripped DC Input Source Wire
1 Strip the wires to approximately 0.39 inch (10 mm) +
0.02 inch (0.5 mm)
Take note of the following warnings:
Statement 1030 Equipment Installation
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1073 No User-Serviceable Parts
There are no serviceable parts inside. To avoid risk of electric shock, do not open.
source at your site. Make sure that the lead color coding you choose for the DC input power supply
matches the lead color coding used at the DC power source and verify that the power source is connected
to the negative (–) terminal and to the positive (+) terminal on the power supply.
supply. See Ground the Chassis, on page 61
Cisco Secure Firewall 3110, 3120, 3130, and 3140 Hardware Installation Guide
Connect the DC Power Supply Module
for the procedure.
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