F5 8900, Platform Manual

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Caution: Before you begin to work with one of these platforms, refer to the DC-powered equipment
environmental warnings for this platform and review any safety requirements for the facilities where the
DC-powered platforms will be installed.
Important: This product is sensitive to electrostatic discharge (ESD). F5 Networks recommends that you
use proper ESD grounding procedures and equipment when you install or maintain the unit.
Important: The platform must be installed in a RESTRICTED ACCESS LOCATION, such as a central
office or customer premises environment.
Note: All copper grounding cable used for grounding must meet all appropriate UL standards.
Note: You should coat bare conductors with an appropriate antioxidant compound before you make crimp
connections. You should bring all unplated connectors, braided strap, and bus bars to a bright finish and
then coat them with an antioxidant before you connect them.
Note: The platform must be grounded to a common bonding network (CBN).
Note: The battery return terminals on the platform are in an isolated DC return (DC-I) configuration.
Wiring the DC power supply terminal block
You will need the following tools to assemble and wire the DC terminal block:
• Wire stripping tool
• Small Phillips screwdriver
• Small flat head screwdriver
The DC power supply for the 8900 platform includes a DC terminal block. You connect the wires to the
terminal block and then insert the terminal block into the DC power supply.
1. Review the DC power supply label and determine the correct wire size for your installation.
2. Use the wire stripping tool to remove 3/8 inch (9.56 mm) of insulation.
Important: Be sure to remove the appropriate amount of insulation from each wire. If you remove too
much insulation, exposed wire protruding from the terminal block can create an electrical hazard. If
you do not remove enough insulation, the wire might not make proper contact with the terminal.
3. Thread the wires through the bottom of the terminal block, with the positive DC wire (typically red) on
the left, the chassis ground wire in the middle, and the negative DC wire (typically black) on the right.
Note the orientation of the keying notch on the terminal block. When the keying notch is up, the positive
terminal is on the left.
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Platform Maintenance