42
F
IELD REPLACEABLE UNITS
CHAPTER 5 MAINTENANCE
To add or replace a card:
1. Make sure an adequate earth ground connection has been made between the grounding screw on
the back of the controller and an appropriate grounding point in your site.
WARNING: Adequate earth ground connection of the 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 controller or
unpainted bare metal spot of a grounded equipment rack).
4. Turn off the power switch of the 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 cards.
5. Disconnect all cables (except the earth ground connection) from the controller.
CAUTION: Power source cables must be disconnected last.
6. Unscrew the two thumb screws of the slot where you wish to install or replace a card.
7. Gently remove the blank plate or the existing card.
8. 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.
9. Set the thumb screws back into place. Do not over-tighten.
10. Apply the label indicating the ISED and ACTA registration numbers on the exterior surface of the
casing.
Slot 1- DSP
Slot 2- FXO
Slot 3- FXS
PRI
1. Replace the DSP card in slot 1with the PRI card.
2. Install the DSP card in slot 4(next available slot).
DSP Install the DSP card in slot 4 (next available slot).
FXO or FXS Install the FXS or FXO card in slot 4 (next available
slot).
Current slot
configuration
If the new card
you want to
install is Recommended action
咨询订购：400-010-8885、 Support@mitel.com.cn
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