Locations — 7311-D20 expansion unit

Map codes to hardware.

Note: The known logical location codes for this unit are listed next to the corresponding physical location in the following information. If you are working with a logical location code for this unit and it is not listed in the following information, contact your next level of support.

The following diagrams show field replaceable unit (FRU) layout in the 7311-D20 expansion units. Use these diagrams with the following tables.

Note: Some units may have labels that designate location codes other than those shown in the following illustrations and tables. If that is the case, use the location codes shown in the following illustrations and tables.

Figure 1. Front view of the 7311-D20 expansion unit

Figure 2. Back view of the 7311-D20 expansion unit

Figure 3. Top view of the 7311-D20 expansion unit

The following table gives the components available for callout on the 7311-D20 expansion units. It matches those components with the FRU containing the component. The other columns give location information, a link to a removal and replacement procedure, and additional information.

Attention: After replacing any part on a server or expansion unit, perform Verifying the repair.

Table 1. FRU locations and failing components for 7311-D20 expansion unit
Failing item name	Symbolic failing item name	Physical location code	Identify LED	Link to part number	Failing item removal and replacement procedures
Backplane SPCN Card enclosure or backplane Multi-adapter bridge (all)	TWRCARD MA_BRDG MABRCFG PPCITWR PRI_PCI HSL_LNK PIOCARD MASBUS TWRBKPL TWRPLNR	Un-P1	Yes	28BE	I/O backplane assembly
PCI adapter in slot 1	PIOCARD MASBUS SLOTERR	Un-P1-C01	Yes		PCI adapter
PCI adapter in slot 2	PIOCARD MASBUS SLOTERR	Un-P1-C02	Yes		PCI adapter
PCI adapter in slot 3	PIOCARD MASBUS SLOTERR	Un-P1-C03	Yes		PCI adapter
PCI adapter in slot 4	PIOCARD MASBUS SLOTERR	Un-P1-C04	Yes		PCI adapter
RIO/HSL adapter HSL I/O adapter RIO host bridge adapter	SIIOADP SIADPCD SI_PHB	Un-P1-C05	Yes		RIO/HSL card
PCI adapter in slot 6	PIOCARD MASBUS SLOTERR	Un-P1-C06	Yes		PCI adapter
PCI adapter in slot 7	PIOCARD MASBUS SLOTERR	Un-P1-C07	Yes		PCI adapter
PCI adapter in slot 8	PIOCARD MASBUS SLOTERR	Un-P1-C08	Yes		PCI adapter
PCI bridge set 1	BRDGSET BRDGST1	Un-P1 Un-P1-C01 Un-P1-C02 Un-P1-C03 Un-P1-C04			Replace the system backplane and cards using the removal and replacement procedures corresponding to the locations indicated.
PCI bridge set 2	BRDGSET BRDGST2	Un-P1 Un-P1-C06 Un-P1-C07 Un-P1-C08			Replace the system backplane and cards using the removal and replacement procedures corresponding to the locations indicated.
EPO connector (J11)		Un-P1-T1
UPS connector (J14)		Un-P1-T2
SPCN connector (J15)		Un-P1-T3
SPCN connector (J16)		Un-P1-T4
Rack beacon connector		Un-P1-T5
Fan 1		Un-A1	Yes	Part assembly diagrams	Fan
Fan 2		Un-A2	Yes	Part assembly diagrams	Fan
Fan 3		Un-A3	Yes	Part assembly diagrams	Fan
Fan 4		Un-A4	Yes	Part assembly diagrams	Fan
Device physical locations
Disk drive 1		Un-DB1-D01 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 2		Un-DB1-D02 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 3		Un-DB1-D03 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 4		Un-DB1-D04 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 5		Un-DB1-D05 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 6		Un-DB1-D06 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 7		Un-DB2-D07 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 8		Un-DB2-D08 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 9		Un-DB2-D09 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 10		Un-DB2-D10 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 11		Un-DB2-D11 (logical location not applicable)		Disk unit parts	Disk drive
Disk drive 12		Un-DB2-D12 (logical location not applicable)		Disk unit parts	Disk drive
Power supply 1		Un-E1		Power parts	Power supply
Power supply 2		Un-E2		Power parts	Power supply
Disk drive backplane		Un-DB1		Backplanes	Disk drive backplane
Disk drive backplane		Un-DB2		Backplanes	Disk drive backplane
RIO/HSL adapter connector (bottom connector)	HSL_LNK HSL2 HSL2_xx HSLH HSLH_xx	Un-P1-C05-00 or Un-P1-C05-T1	Yes		Exchanging RIO/HSL cables
RIO/HSL adapter connector	HSL_LNK HSL2 HSL2_xx HSLH HSLH_xx	Un-P1-C05-01 or Un-P1-C05-T2	Yes		Exchanging RIO/HSL cables

Notes:

J11 is an RPO connection, J14 is an uninterruptible power supply connector, J15 is an SPCN 1 connector, and J16 is an SPCN 2 connector.
Multi-adapter bridge domains are labeled PCI Bridge Set inside the expansion unit.
The following table provides information necessary to identify the IOP to which an IOA is assigned.
- The left column indicates the domain in which IOA assignment is allowed.
- The right column is used to determine the IOP to which an IOA is assigned.
- The first position in the list must be an IOP. The remaining positions may be IOPs or IOAs. IOAs are assigned to the first IOP located to their left in the list. Although IOAs can be manually reassigned using SST/DST, the IOA assignments return to the default order after each IPL.
  Table 2. Identify the IOP to which IOAs are assigned
  Multi-adapter bridge domain / PCI bridge set IOA assignment rules
  
  C01 - C04 C01, C02, C03, C04
  
  C06 - C08 C06, C07, C08

Table 2. Identify the IOP to which IOAs are assigned
Multi-adapter bridge domain / PCI bridge set	IOA assignment rules
C01 - C04	C01, C02, C03, C04
C06 - C08	C06, C07, C08