MAP2810 Management enclosure reporting I2C interface fault

1. Is there an open serviceable event for a UPS power failure, or containing a UPS FRU?
   • Yes. Exit this MAP and start the repair using that serviceable event.
   • No. Go to step 2.
2. This MAP might require you to know the SRC or FRU locations from the serviceable event. If you do not know them, display them now by using the following steps:
   1. At the top of this MAP procedure, click Close.
   2. To the question What was the result of using the service procedure? click Delay the repair and then click Next.
   3. The selected serviceable event is displayed. Under Selected, click View Details.
   4. Record notes or take a picture of the information. Then, click Cancel.
   5. The selected serviceable event is displayed.

   Begin the repair to return to this MAP procedure.

3. Use the SRC in the serviceable event that sent you here to determine the failure. See Table 1.

   Table 1. SRCs for MAP2810

   SRC	Description	Go to
   BE198D8C	Management enclosure power supply (E31) I2C interface fault to one RPC card.	MAP2810 Section-2 SRCs BE198D8C, BE198D8D, and BE198D90
   BE198D8D	Management enclosure power supply (E32) I2C interface fault to one RPC card.
   BE198D8E	Management enclosure power supply (E31) I2C interface fault to both RPC cards	MAP2810 Section-3 SRCs BE198D8E, BE198D8F
   BE198D8F	Management enclosure power supply (E32) I2C interface fault to both RPC cards
   BE198D90	Management enclosure power supplies (E31 and E32) report an I2C communication failure with one RPC card.	MAP2810 Section-2 SRCs BE198D8C, BE198D8D, and BE198D90

Management enclosure power supply interface fault to one RPC card.

1. 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.

   

2. Use the serviceable event FRU list location code to determine the RPC card that reports the error (C1, C2). See Figure 2.

   

3. Inspect the Y-cable that is connected to the RPC card J2 connector.
   Is the cable disconnected (or damaged)?
   • Yes, exit this MAP and select the cable FRU. Reconnect or replace the cable as needed to reconnect or replace the cable.
   • No, exit this MAP and replace the next FRU in the FRU list.

Management enclosure power supply reports an interface fault to both RPC cards.

1. At the rear of the rack, locate the management enclosure power supply. (E31 left, E32 right) See Figure 3.
   Note: The management enclosure cable management arm partially blocks the rear view.

   

2. Observe the management enclosure power supply rear LEDs. See Figure 4.
   Is the input power green LED on?
   • Yes, replace the management enclosure power supply. Exit this MAP.
   • No, go to step 3.

   

3. Inspect the power cable between the management enclosure power supply and UPS. Ensure that the cable is firmly seated at both ends. The UPS end does not snap into place. See Figure 3, Figure 5, Figure 6, and Figure 7.
   • E31 management enclosure power supply connector J4 power cable connects to E61 (upper) UPS connector J8.
   • E32 management enclosure power supply connector J4 power cable connects to E62 (lower) UPS connector J8.
   Is the power cable disconnected?
   • Yes, go to step 4.
   • No, go to step 5.

   

   

   

4. Reconnect the power cable. Observe the management enclosure power supply rear LEDs. See Figure 3.
   Is the input power green LED on?
   • Yes, the problem is repaired. Exit this MAP.
   • No, go to step 5.
5. At the front of the rack, observe the UPS control panel that supplies power to the management enclosure power supply. See Figure 8.
   Is the Output status green LED indicator on?
   • Yes, go to step 6.
   • No, the UPS is powered off or failing. Go to MAP2870 UPS visual symptoms. Exit this MAP.

   

6. Determine whether the UPS J8 connector is providing power.
   Note: The UPS J6, J7, and J8 output connectors share common power. If J8 is off, so is J6 (to CEC, upper) and J7 (to CEC, lower).

   Does each CEC enclosure have an open serviceable event for a power problem?

   • Yes, replace the UPS. Exit this MAP.
   • No, replace the power cable between the UPS and management enclosure power supply. Exit this MAP.