22
EX Controller Installation Guide
INSTALLING, REMOVING, OR REPLACING A TE-
LEPHONY CARD
IMPORTANT
To comply with the ISED and ACTA regulatory aspects, the label supplied
with the telephony card must be applied on the exterior surface of the EX
controller casing during the installation of the telephony card.
PROCEDURE
1. Make sure an adequate earth ground connection has been made be-
tween the grounding screw on the back of the EX Controller and an
appropriate grounding point in your site.
2. Wear an ESD wrist strap, ensuring that it makes good contact with bare
skin.
3. Attach the ESD wrist strap end to an earth ground (grounding screw
on the back of the EX Controller or unpainted bare metal spot of a
grounded equipment rack).
4. Turn OFF the power switch of the EX Controller.
5. Turn off the power sources used to power the EX Controller at the circuit
breaker.
Note: Installing a telephony card is optional. You can deploy an EX controller
without a telephony card installed.
WARNING: Adequate earth ground connection of the ex
controller is mandatory to avoid any damage or injuries.
Note: Redundant Power Supply units do not have a power switch.
WARNING: The controller unit must be turned off before
adding, removing or swapping the system cards.
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