director 2/64 service manual

4–32 director 2/64 service manual
FRU Removal and Replacement
Replacing a Backplane
To replace the backplane and all FRUs disconnected from the backplane:
1. Replace the backplane:
a. Remove the replacement backplane from its protective antistatic bag. Inspect
the backplane PWA to ensure no connector pins are damaged.
b. Align the guide pins on the back of the backplane with the alignment holes in
the director chassis, as shown in Figure 4–11.
c. While holding the backplane in place, insert and hand tighten one of the top
center panhead Phillips screws.
d. Insert and hand tighten the remaining ten panhead Phillips screws. Tighten the
screws alternately from bottom to top and from side to side.
e. Using a standard Phillips screwdriver, tighten the 11 panhead screws that
secure the backplane to the chassis. Tighten the screws alternately from bottom to
top and from side to side.
2. Replace the power module assembly (RRP: Power Module Assembly on page
4–26).
3. Replace both SBAR assemblies (RRP: Redundant SBAR Assembly on page
4–20).
4. Replace both fan modules (RRP: Redundant Fan Module on page 4–23).
5. Replace the RFI shield.
6. Seat and connect both power supplies (RRP: Redundant Power Supply on page
4–17).
7. Seat all logic cards (CTP2 and UPM cards) into the backplane. For each logic
card:
a. Slide the card forward until it makes contact with the backplane.
b. Insert the torque tool into the Allen screw at the top of the card. Turn the
torque tool clockwise until you feel it release and hear a clicking sound. As
the screw turns clockwise, the card cams into the backplane connector.
c. Insert the torque tool into the locking Allen screw at the bottom of the card.
Turn the torque tool clockwise until you feel it release and hear a clicking
sound. As the screw turns clockwise, the card locks into place.