Protogate Freeway 3414, Hardware Maintenance Manual, Page: 50 / 72

50 DC 900-2031A
Freeway 3414/3414R Hardware Maintenance Guide
4.4 Replacing an ICP Board
To replace an ICP board, use the following procedure:
1. Shut down and power off the Freeway using the procedure described in
Section 2.1 on page 28 .
2. Unplug the power cord(s) from the back of the Freeway cabinet.
3. Disconnect the WAN cable(s) on the rear of the cabinet that are connected to the
ICP board you want to replace.
4. Slip the anti-static strap around your wrist and attach the alligator clip to any bare
metal area of the Freeway cabinet.
5. Remove the top cover of the cabinet as described in Section 2.3 on page 32 .
6. Remove the board support bar by removing the screw at each end of it that holds
it to the cabinet and lifting the bar out of the way.
7. Remove the screw near the ICP board’s face plate that holds it to the cabinet.
8. Carefully pull the board straight up and out of the backplane.
9. Place the board in static protection packaging.
10. Remove the new ICP board from its static protection packaging. Slide the new
board into the slot from which you removed the old board.
11. Seat the board by applying pressure evenly to the top of the board.
12. Replace the screw near the ICP board’s face plate.
13. Replace the board support bar and tighten the screws that secure it in place.
14. Replace the top cover on the cabinet and tighten the screws that secure it in place.