Cisco Firepower 4100 Series Maintenance And Upgrade Manual page 12

Connect the DC Power Supply Module
Warning
Statement 1040 Product Disposal
Ultimate disposal of this product should be handled according to all national laws and regulations.
Warning
Statement 1045 Short-Circuit Protection
This product requires short-circuit (overcurrent) protection to be provided as part of the building installation.
Install only in accordance with national and local wiring regulations.
Warning Statement 1046 Installing or Replacing the Unit
To reduce risk of electric shock, when installing or replacing the unit, the ground connection must always be
made first and disconnected last.
Warning Statement 1077 Do Not Operate Unit Without Covers
The covers are an integral part of the safety design of the product. Do not operate the unit without the covers
installed.
Warning
Statement 1073 No User-Serviceable Parts
No serviceable parts inside. To avoid risk of electric shock, do not open.
Warning
Statement 1086 Power Terminals, Replace Cover
Hazardous voltage or energy may be present on power terminals. Always replace cover when terminals are
not in service. Be sure uninsulated conductors are not accessible when cover is in place.
Before You Begin
• The color coding of the DC input power supply leads depends on the color coding of the DC power
• For DC input power cables, the wire gauge is based on the National Electrical Code (NEC) and
• Tools needed:
Maintenance and Upgrade
12
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.
local codes for 26 amp service at nominal DC input voltage (–40/–72 VDC). One pair of cable leads,
source DC (–) and source DC return (+), are required for each power distribution unit (PDU). These
cables are available from any commercial cable vendor. All DC input power cables for the chassis
should be 10gauge wire and cable lengths should match within 10 percent of deviation.
• Phillips head screwdriver
Maintenance and Upgrade