Exchange the RPC card to UPS cable

Before you begin

Icon for electrostatic discharge wrist strapUse approved ESD procedures to prevent damage.

Attention:
  • This procedure is not a stand-alone procedure. Customer disruption and damage to the hardware might occur when microcode and power boundaries are not in the proper conditions for this service action.
  • If a serviceable event FRU repair directed you to this procedure, the microcode and power boundaries are already set.
  • If a serviceable event FRU repair did not direct you to this procedure, see MAP1230 Replace a FRU without using a serviceable event.
Notes:
  • All the cables and FRUs to be removed must be uniquely identified so they can be reinstalled correctly.

Remove the RPC card to UPS cable

Procedure

  1. To locate this FRU, take one of the following actions and then return here and continue to replace the FRU:
    • If this FRU has a FRU identify indicator, use the FRU identify indicator, which is listed in MAP1240 Locating FRUs by using identify indicators. If not, use the location code.
      Note: There might be cases where the FRU failure or fencing conditions prevent the FRU LED indicator from being lit even if the FRU has power.
    • Use the location code, which is listed in MAP1245 Finding FRUs by using location codes.
    • If there is no FRU identify indicator or location code, you were sent here by an isolation MAP or symbolic FRU procedure. Use the information in that procedure and the figures in this procedure to locate the proper part to exchange.
  2. Most, but not all, FRUs have identify indicators. Use the flashing amber or solid blue FRU identify indicators to ensure that you are working on the correct enclosure or FRU.
  3. There are two serial cables. See Table 1, Figure 1, Figure 2, Figure 3, and Figure 4.
    Table 1. RPC card to CEC enclosure serial cables (Model 983)
    From RPC card port RPC (rear view) To UPS port UPS
    C1-J207 Left E61-J13 Upper
    C2-J207 Right E62-J13 Lower
    Figure 1. RPC card to UPS cables
    RPC card to UPS cables
    Figure 2. Location codes for the management enclosure (Model 983)
    Management enclosure locations
    Figure 3. Location codes for the RPC card (Model 983)
    RPC card rear connectors J2xx
    Figure 4. UPS enclosure location codes (rear view) (Model 983)
    Location codes for the UPS (Model 983), rear view
  4. Read this step completely before going to the next step.
    1. The cable is connected to the rear of the management enclosure, is routed through the cable management arm, and then exits to the connection at the other end.
    2. The cable bundle in the arm might have one or more black plastic zip ties that must be cut to replace the cable.
    3. The new cable being installed must have the same service loop as the other cables at the rear of management enclosure. The service loop prevents the cable from pulling tight when the enclosure is slid in and out.
    4. The management enclosure might need to be slid out and in for different steps in this procedure.
  5. At the front of the rack, slide the management enclosure out to the service position and remove the top cover. See Figure 5.
    Note: The management enclosure is below the two CEC enclosures.
    1. Fully loosen the left and right captive thumb screws.
    2. Slide the management out fully so the sliding rails lock into place.
    3. At the rear of the top cover, fully loosen the left and right captive thumb screws.
    4. Slide the cover back until it lifts off.
    Figure 5. Front of Management enclosure (Model983)
    Front of Management enclosure (Model 983)
  6. Disconnect the serial cable at the RPC card connector, squeeze the tab to release it.
  7. Disconnect the serial cable at the UPS.
  8. Remove the cable from the management enclosure cable management arm.
    1. The cable bundle in the arm might have up to three black zip ties that need to be cut to replace a cable.
    2. Release the hook-and-loop fasteners as needed to remove the cable from the arm.
  9. Remove the cable retention hardware as needed and then remove the cable.

Install the RPC card to UPS cable

Procedure

  1. Use the location code label on each end of the cable to ensure it is installed correctly.
  2. Route the cable by starting at the management enclosure end.
    1. Connect the cable to the management enclosure connector.
    2. Route the cable on the top of the existing cables in the arm.
    3. At the rear of the enclosure, ensure that the cable has the same service loop as the other cables.
    4. Secure the cables to the arm with the existing hook-and-loop fasteners.
  3. Test the service loop for all the cables in the cable management arm. Carefully slide the enclosure slowly in and out, checking that none of the cables pulls tight.
  4. Route the cable to the other end and reinstall the cable retention hardware.
  5. Ensure that the enclosure is in the operating position with the left and right captive thumb screws fastened.
  6. Exit this service information center parts exchange procedure and return to the procedure that sent you here.