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Appendix B: Removing and Replacing Appliance Components
The Cards in the ETM Appliances are designed to be resilient to
electrostatic discharge (ESD). In addition, the Cards and enclosures are
designed to safely discharge ESD when the Cards are inserted or ejected.
However, you should take basic ESD precautions when handling the Cards
as described below:
Use antistatic bags when transporting Cards away from the Appliance.
Before taking a Card out of a bag or ejecting a Card from an Appliance,
ground yourself by touching an unpainted surface on the Appliance or
rack.
Hold the Cards using the black ejector latches. Avoid touching the Card
surfaces, components, or connectors when the Cards are out of the
Appliance.
If you follow these basic guidelines, it should not be necessary to use
grounding straps or mats when removing or installing Appliance Cards.
The Controller Card and Digital Trunk Interface in the ETM 2100 and 3200
Appliances are designed to be removed and replaced without disrupting the
operation of other components in the Appliance. The Controller Card and
Digital Trunk Interface work together as a unit and require a specific,
ordered procedure to remove and install them. See the sections below for
the proper procedures for removing and replacing the Cards.
WARNING
Do not remove the DSP PMC from the Controller Card unless directed to do so by
SecureLogix Customer support.
To remove a Controller Card from the chassis
1.
On the Controller Card, at the front of the Appliance, remove the
Ethernet and SMDR cables.
2.
Press the red button on each of the two black latches on the Card.
3.
Wait for the hot-swap LED on the Card to illuminate, indicating that
the operating system on the Card has halted.
4.
Remove the screws next to the latches on the Card, flip the latches out,
away from the Card, and pull the Card from the chassis.
If you are also removing the Digital Trunk Interface, see "Removing a
Digital Trunk Interface" on page 189. For instructions for reinstalling the
Controller Card, see "Inserting a Controller Card" on page 189.
Basic ESD
Precautions
Removing and
Replacing Cards
Removing a
Controller Card