PSU
Free Slots 1 to 7 for Optional Service Cards
CAUTION
To protect the back board from static electricity, do not touch parts on the back board in the main unit,
PSU, and on the optional service cards. To discharge static electricity, touch ground or wear an earthing
strap. Make sure the screws are tightened to earth the card securely.
Installing the Trunk/Extension Cards
1. Insert the card along the guide rails.
2. Holding the card as shown below, push the release lever in the direction of the arrow so that the card
engages securely with the connector on the back board.
3. Turn the 2 screws clockwise to fix the card in place.