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PRO SWITCHING SYSTEM
7. Maintenance
No preventive or routine maintenance is required for the Pro Switching System.
Periodically test the LED lamps by pressing the Lamp Test Button. All LEDs should
light.
To replace a card, unscrew the mounting screws. Slide the card out of the rack
and install a replacement.

WARNING

Turn power off before disconnecting cables! You might get shocked if
you don’t!
NOTE
You don’t need to disconnect the DTE/DCE cables from the rear of the
rack while replacing a front-inserted card. Disconnect the power while
changing cards. Removing power does not affect or change the
switched position.
CAUTION
Electrostatic Discharge (ESD): Cards are ESD-sensitive. To prevent ESD
damage, always wear grounding wrist straps when touching, removing,
or inserting cards. Store and transport cards in sealed static-shielding
containers.