MAP2221 CEC enclosure to RPC card RS-485 serial path failure

One or more serial interfaces between the CEC enclosure RS-485 serial interface card and RPC cards is failing.

MAP2221 Section-1

Procedure

  1. There are four RS-485 serial cables between the CEC enclosures and RPC cards. Each is a separate communication path.
    Figure 1. Serial cables, CEC enclosure RS-485 card to RPC cards, model 961
    Serial cables, CEC enclosure RS-485 card to RPC cards
    Figure 2. Serial cables, CEC enclosure RS-485 card to RPC cards, models 980, 981, 984, 985, and 986
    Serial cables, CEC enclosure RS-485 card to RPC cards, model 98x
    Figure 3. Serial cables, CEC enclosure RS-485 card to RPC cards, models 982 and 988
    Serial cables, CEC enclosure RS-485 card to RPC cards, models 98x and 982
    Figure 4. Serial cables, CEC enclosure RS-485 card to RPC cards, model 983
    RPC card to CEC enclosure serial cables
  2. Display open serviceable events. Find those serviceable events with the SRCs listed in Table 1. Use Table 1 to prioritize the order of repair.
    Table 1. SRC and associated actions
    SRC repair order SRC definition Go to
    BE190050 CEC enclosure 1 failed to communicate with RPC-1 and RPC-2 through RS-485 serial paths. MAP2221 Section-2 (One CEC enclosure RS-485 serial interface failed to both RPC cards)
    BE190051 CEC enclosure 2 failed to communicate with RPC-1 and RPC-2 through RS-485 serial paths.
    BE190052 CEC enclosure 1 and 2 failed to communicate with RPC-1 through RS-485 serial paths. MAP2221 Section-3 (Both CEC enclosure RS-485 serial interfaces failed to one RPC card)
    BE190053 CEC enclosure 1 and 2 failed to communicate with RPC-2 through RS-485 serial paths.
    BE190054
    BE190058    		 CEC enclosure 1 failed to communicate with RPC-1 through RS-485 serial path. MAP2221 Section-4 (One CEC enclosure RS-485 serial interface failed to one RPC card)
    BE190055
    BE190059    		 CEC enclosure 2 failed to communicate with RPC-1 through RS-485 serial path.
    BE190056
    BE19005A    		 CEC enclosure 1 failed to communicate with RPC-2 through RS-485 serial path.
    BE190057
    BE19005B    		 CEC enclosure 2 failed to communicate with RPC-2 through RS-485 serial path.

MAP2221 Section-2 (One CEC enclosure RS-485 serial interface failed to both RPC cards)

Procedure

  1. Use the SRC in the serviceable event that sent you here and refer to Table 2 for an overall description of your failure.
    Table 2. SRC communication failure resources
    SRC Communication failure resources
    BE190050 CEC enclosure 1 (upper) failure to communicate with RPC-1 card and RPC-2 card through RS-485 serial interface paths.
    BE190051 CEC enclosure 2 (lower) failure to communicate with RPC-1 card and RPC-2 card through RS-485 serial interface paths.
  2. Display open serviceable events. Look for FRU lists containing:
    • CEC enclosure RS-485 serial interface card
    • CEC enclosure system backplane
    • Serial interface cable

    Other than the serviceable event FRU list that sent you here, is there any other serviceable event with one of the above FRUs listed?

    • Yes, exit this MAP and attempt to repair that serviceable event first. If that repair does not correct this problem, return here and continue with the next step. If that repair does correct this problem, remember to also close this serviceable event. For details, see MAP1235 Section-5, Exit Procedure 5: Problem not isolated, exit this procedure.
    • No, go to the next step.
  3. Ensure that both serial interface cables are properly connected to the CEC enclosure RS-485 serial interface card connectors:
    • Model 96x. See Figure 5. P1-C5-T1 is upper cable with gray label, and P1-C5-T2 is lower cable with yellow label.
    • Models 980, 983,and 984. See Figure 6. P1-C12-T1 is upper cable with gray label, and P1-C12-T2 is lower cable with yellow label.
    • Models 981, 985, and 986. See Figure 7. P1-C12-T1 is upper cable with gray label, and P1-C12-T2 is lower cable with yellow label.
    • Models 982 and 988. See Figure 8. P1-C7-T1 is upper cable with gray label, and P1-C7-T2 is lower cable with yellow label.
    Figure 5. Location codes for the CEC enclosure (rear view) (Model 961)
    Location codes for the CEC enclosure (rear view) (Models 961)
    Figure 6. Location codes for CEC enclosure (rear view) (Models 980, 983, 984)CEC enclosure location codes (rear view)
    Figure 7. Location codes for the CEC enclosure (rear view) (Model 981, 985, 986)
    CEC enclosure location codes (rear view)
    Figure 8. CEC enclosure location codes (rear view) (Models 982, 988)
    CEC enclosure location codes (rear view) (Model 982)
    1. The location code of the CEC enclosure RS-485 serial interface card appears in the serviceable event FRU list that sent you here.
    2. If a cable is unplugged, or if cables are crossed, do a pseudo-repair of the CEC enclosure RS-485 serial interface card and instead of replacing the card, properly connect the cable or cables. For details, see MAP1235 Section-4, Exit Procedure 4: Problem not isolated, continue FRU list. Select the RS-485 serial interface card from the FRU list.
  4. Ensure that the RS-485 serial interface cables are properly connected to both RPC cards.
    1. Model 961, 98x (not 983). See Figure 9.
      • CEC enclosure 1 (upper) to both RPC cards J212 connector
      • CEC enclosure 2 (lower) to both RPC cards J216 connector
    2. Model 983. See Figure 10.
      • CEC enclosure 1 (upper) to both RPC cards J203 connector
      • CEC enclosure 2 (lower) to both RPC cards J205 connector
    3. Is a cable disconnected?
      • Yes, do a pseudo-repair of the CEC enclosure RS-485 serial interface card and instead of replacing the card, properly connect the cable. For details, see MAP1235 Section-4, Exit Procedure 4: Problem not isolated, continue FRU list. Select the RS-485 serial interface card from the FRU list.
      • No, go to the next step.
    Figure 9. Location codes for the RPC card (Model 98x, not 983)
    Location codes for the RPC card (Model 98x)
    Figure 10. Location codes for the RPC card (Model 983), rear of management enclosure
    RPC card rear connectors J2xx
  5. If no problem was found with the serial interface cables, the possible failing FRUs are:
    • CEC enclosure RS-485 serial interface card
    • CEC enclosure system backplane
    • Serial interface cable

    These FRUs are listed in the serviceable event FRU list that sent you here. Use normal guided maintenance to replace the FRUs. For details, see MAP1235 Section-4, Exit Procedure 4: Problem not isolated, continue FRU list.

MAP2221 Section-3 (Both CEC enclosure RS-485 serial interfaces failed to one RPC card)

About this task

Note: The RPC card is fenced. The following procedure resets the fence by either replacing the card or doing a pseudo-repair of the card.

Procedure

  1. Use the SRC in the serviceable event that sent you here to determine which RPC card the CEC failed to communicate with. Refer to Table 3. The location code of the suspect RPC card is the first FRU following MAP2221 in the FRU list (Figure 9 or Figure 10).
    Table 3. SRC communication interface failure resources
    SRC Communication failure resources
    BE190052 Both CEC enclosure RS-485 serial adapters failed to communicate with RPC-1 card.
    BE190053 Both CEC enclosure RS-485 serial adapters failed to communicate with RPC-2 card.
  2. Display serviceable events that need repair.

    Is there any other serviceable event that lists the RPC card that is determined in step 1 or CEC enclosure-to-RPC card cable that connects to it?

    • Yes, exit this MAP and attempt to repair that serviceable event first. If that repair does not correct this problem also, return here and continue at the next step. If that repair does not correct this problem, remember to also close this serviceable event. For details, see MAP1235 Section-5, Exit Procedure 5: Problem not isolated, exit this procedure.
    • No, go to the next step.
  3. Ensure that both serial interface cables are properly connected to the CEC enclosure RS-485 serial interface card connectors.
    1. Ensure that both serial interface cables are properly connected to the CEC enclosure RS-485 serial interface card connectors;
      • Model 96x. See Figure 5. P1-C5-T1, P1-C5-T2.
      • Models 980, 983, and 984. See Figure 6. P1-C12-T1, P1-C12-T2.
      • Models 981, 985, and 986. See Figure 7. P1-C12-T1, P1-C12-T2.
      • Models 982 and 988. See Figure 8. P1-C7-T1, P1-C7-T2.
    2. Is a cable disconnected?
      • Yes, do a pseudo-repair of the RPC card that is listed in the FRU list. Instead of replacing the card, properly connect the cable. A pseudo-repair and properly connecting the cable also resets the RPC card fence. For details, see MAP1235 Section-4, Exit Procedure 4: Problem not isolated, continue FRU list. Select the RPC card from the FRU list.
      • No, go to the next step.
  4. Ensure that the following cables are properly connected to each RPC card.
    1. Model 961, 98x (not 983). See Figure 9.
      • CEC enclosure 1 (upper) to both RPC cards J212 connector
      • CEC enclosure 2 (lower) to both RPC cards J216 connector
    2. Model 983. See Figure 10.
      • CEC enclosure 1 (upper) to both RPC cards J203 connector
      • CEC enclosure 2 (lower) to both RPC cards J205 connector.
    3. Is a cable disconnected, or are cables crossed?
      • Yes, do a pseudo-repair of the RPC card and instead of replacing the card, properly connect the cable or cables. For details, see MAP1235 Section-4, Exit Procedure 4: Problem not isolated, continue FRU list. Select the RPC card from the FRU list.
      • No, go to the next step.
  5. Select the model that is being repaired.
    • Model 983. Go to step 7.
    • Model 96x, 98x (not 983). Go to step 6.
  6. Observe the RPC card operation LED indicator. (Model 96x, 98x)
    1. Is the green LED indicator Callout label 2 lit solid? See Figure 11.
      • Yes. Go to step 9.
      • No. Go to step 6.b.
    2. Is the power cable connected to RPC card J201 connector?
      • Yes. Replace the RPC card. Go to step 9.
      • No. Go to step 9. When directed to replace the card, connect the J201 cable instead and complete the repair.
    Figure 11. LEDs on the RPC card (Model 98x, not 983)
    LEDs on the RPC cards (Model 98x)
  7. At the front of the rack, slide the management enclosure out to the service position and remove the top cover.
    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 12. Management enclosure (front)
    Front of Management enclosure (Model 983)
  8. Observe the RPC card LED indicators.
    1. At the top rear of the RPC card, is the green operation LED indicator Callout label 2 lit solid? See Figure 13.
      • Yes, go to step 9.
      • No, go to step 8.b.
    2. At the front of the RPC card, is the J2 power cable connected? See Figure 14.
      • Yes. Replace the RPC card. Go to step 9.
      • No. Go to step 9. When directed to replace the card, connect the J2 cable instead and complete the repair.
    Figure 13. LEDs on RPC card (Model 983)
    Management enclosure front panel
    Figure 14. Location codes for the RPC (Model 983), front view
    Location codes for the RPC card (Model 983), front view
  9. If no problem was found with the serial interface cables, the possible failing FRUs are:
    • RPC card
    • Serial interface cable

    The FRU is listed in the serviceable event FRU list that sent you here. Use normal guided maintenance to replace the FRU. For details, see MAP1235 Section-4, Exit Procedure 4: Problem not isolated, continue FRU list.

MAP2221 Section-4 (One CEC enclosure RS-485 serial interface failed to one RPC card)

About this task

Note: The RPC card is fenced. The following procedure resets the fence by either replacing the card or doing a pseudo-repair of the card.

Procedure

  1. Use the SRC in the serviceable event that sent you here to determine the failing communication interface by using Table 4. The FRUs at each end of the serial interface cable are listed following MAP2221 in the FRU list.
    Table 4. SRC communication interface failure resources
    SRC Communication failure resources
    BE190054
    BE190058    		 CEC enclosure 1 (upper), failure to communicate with RPC-1 card through RS-485 serial cable.
    BE190055
    BE190059    		 CEC enclosure 2 (lower), failure to communicate with RPC-1 card through RS-485 serial cable.
    BE190056
    BE19005A    		 CEC enclosure 1 (upper), failure to communicate with RPC-2 card through RS-485 serial cable.
    BE190057
    BE19005B    		 CEC enclosure 2 (lower), failure to communicate with RPC-2 card through RS-485 serial cable.
  2. Display serviceable events that need repair.

    Is there any other serviceable event that lists the RPC card that is determined in step 1 or CEC enclosure-to-RPC card cable that connects to it?

    • Yes, exit this MAP and attempt to repair that serviceable event first. If that repair does not correct this problem also, return here and continue at the next step. If that repair does not correct this problem, remember to also close this serviceable event. For details, see MAP1235 Section-5, Exit Procedure 5: Problem not isolated, exit this procedure.
    • No, go to the next step.
  3. Ensure that both serial interface cables are properly connected to the CEC enclosure RS-485 serial interface card connectors.
    1. Ensure that both serial interface cables are properly connected to the CEC enclosure RS-485 serial interface card connectors:
      • Model 96x. See Figure 5. P1-C5-T1, P1-C5-T2.
      • Models 980, 983, and 984. See Figure 6. P1-C12-T1, P1-C12-T2.
      • Models 981, 985, and 986. See Figure 7. P1-C12-T1, P1-C12-T2.
      • Models 982 and 988. See Figure 8. P1-C7-T1, P1-C7-T2.
    2. Is a cable disconnected?
      • Yes, do a pseudo-repair of the RPC card that is listed in the FRU list. Instead of replacing the card, properly connect the cable. A pseudo-repair and properly connecting the cable also resets the RPC card fence. Exit this MAP. For details, see MAP1235 Section-4, Exit Procedure 4: Problem not isolated, continue FRU list. Select the RPC card from the FRU list.
      • No, go to the next step.
  4. Ensure that the following cables are properly connected to each RPC card.
    1. Model 961, 98x (not 983). See Figure 9.
      • CEC enclosure 1 (upper) to both RPC cards J212 connector
      • CEC enclosure 2 (lower) to both RPC cards J216 connector
    2. Model 983. See Figure 10.
      • CEC enclosure 1 (upper) to both RPC cards J203 connector
      • CEC enclosure 2 (lower) to both RPC cards J205 connector
    3. Is a cable disconnected?
      • Yes, do a pseudo-repair of the RPC card and instead of replacing the card, properly connect the cable. For details, see MAP1235 Section-4, Exit Procedure 4: Problem not isolated, continue FRU list. Select the RPC card from the FRU list.
      • No, go to the next step.
  5. If no problem was found with the serial interface cables, the possible failing FRUs are:
    • RPC card
    • CEC enclosure serial adapter
    • CEC enclosure system backplane
    • Serial interface cable

    The FRU is listed in the serviceable event FRU list that sent you here. Use normal guided maintenance to replace the FRU.

     For details, see MAP1235 Section-4, Exit Procedure 4: Problem not isolated, continue FRU list.