Mitel 3300 ICP Technician's Handbook page 114

3300 ICP Technician's Handbook – Release 3.2
1. Insert a screwdriver in the slot on the right side of the front grill
and pry it open.
2. Loosen the two screws on the front cover and lift the cover up
and away from the cabinet.
Replace a Front Panel
To replace a front panel in a DSU or Peripheral Unit:
1. Align the front panel screws with the holes in the cabinet and
tighten the two screws.
2. Insert the left front grill into the slot and snap it closed.
Remove a Circuit Card
To remove a DSU or Peripheral Unit circuit card:
CAUTION: Wear an anti-static wrist strap whenever you handle
circuit cards.
1. Enter BUSY <PLID of faulty card>, and select the COURTESY
DOWN option.
2. To confirm that all circuits are in the busy state, enter STATE
<PLID of faulty card>.
3. Pull the upper and lower latches outward until they are both in
the horizontal release position.
4. Draw the card toward you.
5. Immediately place the card in an anti-static bag.
Install a Circuit Card
To install a DSU or Peripheral Unit circuit card:
CAUTION: Wear an anti-static wrist strap whenever you handle
circuit cards.
1. For cards that have switches, refer to the card's hardware
description for information about switch settings.
2. Check the connector pins to be certain that they are straight.
3. Slide the card into the slot.
- 106 -