EDAC Installation Guide
512-1090-001, Revision K0
Page 24 of 56
To install the port and relay cards:
1. Open the base unit for card installation as follows:
a. With the power disconnected, open the housing by removing the nut from
each side of the unit and retain the hardware.
b. Lift the end of the housing cover opposite the connectors just enough to
clear the studs.
c. Slide the cover past the connectors to remove
d. Observe the base board markings and the SIMM sockets. The port and
the relay card sockets are numbered JP1 through JP12. For assembly
purposes, JP1 is near the front of the unit, and JP12 is near the rear of the
unit.
2. Orient a card with edge contacts facing down and component side facing toward
the front of the unit.
3. Place the card into the socket with the top angled approximately 60° toward the
rear of the unit.
4. Ensure the contacts on the socket are aligned with the contact pads on the card.
5. Spread the tabs apart; with downward pressure, rotate the card to 90°.
6. Press the card down firmly to make sure it is properly seated to the base unit.
7. Release the tabs to secure the card in place.
8. Repeat steps 2-7 for all port and relay cards that you are installing. Refer to
Figure 11 for an example of 4-port installation with relays.
9. After you have installed the cards, check the following:
a. Ensure that all cards are uniformly spaced
b. Ensure that all retainer tabs are properly locked
c. Ensure that all cards are securely mounted and latched
10. Remove any foreign objects from the unit.
11. Replace the cover.
