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I
NSTALLING, REMOVING OR REPLACING A TELEPHONY CARD
CHAPTER 4 INSTALLATION
Installing, Removing or Replacing a Telephony 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 between the grounding screw on
the back of the EX Controller and an appropriate grounding point in your site.
WARNING: Adequate earth ground connection of the ex controller is mandatory to avoid any damage
or injuries.
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.
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.
5. Turn off the power sources used to power the EX Controller at the circuit breaker.
6. Disconnect all cables (except the earth ground connection) from the EX Controller.
CAUTION: Power source cables must be disconnected last.
7. Unscrew the two thumb screws of the slot where you wish to install or replace a card.
8. Gently remove the blank plate or the existing card.
NOTE: You can insert any type of card in any of the slots, but you must use the slots from 1 to 8,
without leaving slots empty between two cards. Slot order is indicated on the front of the EX
Controller (left bottom corner).
9. Gently slide the new card into the internal plastic rails of the slot.
NOTE: The slot must not be left empty. If do not want to install a new card after removing a telephony
card, insert the blank plate in the slot.
NOTE: While sliding in the card, take care not to damage the electronic parts on the card. The card,
when properly inserted, slides in easily.
10. Set the thumb screws back into place. Do not over-tighten.
For information about the slot order, see the section Connectors and Indicators.
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