Rack power and cooling location codes (Models 961, 96E)

Use Table 1 to find the part of the rack power and cooling system for which you seek location code information. For part numbers, see Rack power and cooling part numbers, Models 951, 95E.
Table 1. Rack power and cooling location codes
Part See
Overview of locations, base rack Figure 1
Overview of locations, expansion rack Figure 2
Battery service module set locations (front) Figure 4
Figure 5
Figure 6
DC-UPS locations (rear) Figure 3
DC-UPS locations (front) Figure 4
Ethernet switch tray (switches, fans, power junction assembly)
Laptop tray (fans)		 Figure 12
Figure 13
Figure 14
Local remote switch card Figure 7
Power supplies, 20V and 12V for laptop, Ethernet tray fans, Ethernet switches Figure 14
Figure 16
Figure 17
Power junction assemblies (PJA) Figure 15
Power distribution unit (PDU) Figure 11
Rack identity card Figure 9
RPC card Figure 10
System z® local remote switch card Figure 8

Overview of locations, base rack

Figure 1. Base rack locations, front and rear
Base rack locations, front and rear
Table 2. Base rack locations, front and rear
Location code Part name
U2nnn.mmm.sssssss-E1 DC-UPS (upper)
U2nnn.mmm.sssssss-E1-Exx
(xx = 10 thru 12)		 Battery service module set
U2nnn.mmm.sssssss-E2 DC-UPS (lower)
U2nnn.mmm.sssssss-E2-Exx
(xx = 10 thru 12) 		Battery service module set
U2nnn.mmm.sssssss-Exx
(xx = 21 thru 26)		 Power distribution units
Callout label 1 Un
(Un = U78AA.001.sssssss)		 CEC enclosure
Callout label 2 U1400.rBn.sssssss I/O enclosure
U2nnn.D02.sssssss Storage enclosure

Overview of locations, expansion rack

Figure 2. Expansion rack locations, front and rear
Expansion rack locations, front and rear
Table 3. Location codes for an expansion rack
Location code Part name
U2nnn.mmm.sssssss-E1 DC-UPS
U2nnn.mmm.sssssss-E1-Exx
(xx = 10 thru 12) 		Battery service module set
U2nnn.mmm.sssssss-E2 DC-UPS
U2nnn.mmm.sssssss-E2-Exx
(xx = 10 thru 12) 		Battery service module set
U2nnn.mmm.sssssss-Exx
(xx = 21 thru 26) 		Power distribution units

DC-UPS locations (rear)

Figure 3. Location codes for the DC-UPS (Models 961, 96E) (rear)
Location codes for the DC-UPS (Models 961, 96E) (rear)
Table 4. DC-UPS locations (rear)
Location code Part name Connector
U2nnn.mmm.sssssss-Ex1, 2 DC-UPS (sheetmetal only enclosure, not a FRU)  
U2nnn.mmm.sssssss-Ex-A1 DC-UPS fan assembly  
U2nnn.mmm.sssssss-Ex-E1 DC supply unit  
U2nnn.mmm.sssssss-Ex-J1   PDU
U2nnn.mmm.sssssss-Ex-J2   PDU
U2nnn.mmm.sssssss-Ex-J3   DC-UPS
U2nnn.mmm.sssssss-Ex-J4   DC-UPS fan assembly
U2nnn.mmm.sssssss-Ex-J5   DC-UPS, EPO switch
U2nnn.mmm.sssssss-Ex-J6   DC-UPS, RPC card C1
U2nnn.mmm.sssssss-Ex-J7   DC-UPS, RPC card C2
U2nnn.mmm.sssssss-Ex-J8   Not used (Rack 1)
Rack Identity Card C5 (expansion rack)
U2nnn.mmm.sssssss-Ex-J9   DC-UPS
U2nnn.mmm.sssssss-Ex-J10   Input phase selection
U2nnn.mmm.sssssss-Ex-J11   Input phase selection
U2nnn.mmm.sssssss-Ex-J14   Mainline power
U2nnn.mmm.sssssss-Ex-P12   (Input phase selection cable)
U2nnn.mmm.sssssss-Ex-P13   (Input phase selection cable)
Notes:
  1. x = 1 is upper DC-UPS; x = 2 is lower DC-UPS.
  2. This is a sheetmetal-only enclosure that the DC-UPS module is contained in. It is not a FRU, but it is used during repairs to identify the DC-UPS.

Battery service module set locations, DC-UPS (front)

Figure 4. Battery service module (BSM) set locations (Models 961, 96E) (front)
Battery service module (BSM) set locations (front)
Figure 5. Battery service module, primary, locations (front)
Battery service module, primary, locations (front)
Figure 6. Battery service module, secondary, locations (front)
Battery service module, secondary, locations (front)
Table 5. Battery service module set locations (front)
Location code Part name Connector
U242n.mmm.sssssss-Ex-Eyy
  x  = 1 (upper DC-UPS)
  x  = 2 (lower DC-UPS)
  yy = 10 (left position)
  yy = 11 (middle position)
  yy = 12 (right position)
 		 Battery service module set
  • Primary module at top
  • Three secondary modules below
  
U242n.mmm.sssssss-Ex-Eyy-E1 Battery service module, primary  
U242n.mmm.sssssss-Ex-Eyy-E1-J30   Battery service module set signal
U242n.mmm.sssssss-Ex-Eyy-E1-J20   Battery service module set power (208V)
U242n.mmm.sssssss-Ex-Eyy-E2
U242n.mmm.sssssss-Ex-Eyy-E3
U242n.mmm.sssssss-Ex-Eyy-E4 		Battery service module, secondary  
U242n.mmm.sssssss-Ex-Eyy-E2-J31
U242n.mmm.sssssss-Ex-Eyy-E3-J31
U242n.mmm.sssssss-Ex-Eyy-E4-J31
  Battery service module set signal
U242n.mmm.sssssss-Ex-Eyy-E2-J21
U242n.mmm.sssssss-Ex-Eyy-E3-J21
U242n.mmm.sssssss-Ex-Eyy-E4-J21
   Battery service module set power (208V)

Local remote switch card locations

Figure 7. Location codes for the local remote switch card
Location codes for the local remote switch card
Table 6. Local remote switch card locations
Location code Part name Connector
U2nnn.mmm.sssssss-C6 Local remote switch card  
U2nnn.mmm.sssssss-C6-J5   RPC card C1
U2nnn.mmm.sssssss-C6-J6   RPC card C2

System z local remote switch card locations

Figure 8. Location codes for the zSeries local remote switch card
Location codes for the zSeries local remote switch card
Table 7. System z local remote switch card locations
Location code Part name Connector
U2nnn.mmm.sssssss-C6 System z local remote switch card  
U2nnn.mmm.sssssss-C6-J1   Customer power control cable
U2nnn.mmm.sssssss-C6-J2   Customer power control cable
U2nnn.mmm.sssssss-C6-J3   Customer power control cable
U2nnn.mmm.sssssss-C6-J4   Customer power control cable
U2nnn.mmm.sssssss-C6-J5   RPC card C1
U2nnn.mmm.sssssss-C6-J6   RPC card C2

Rack identity card locations

Figure 9. Location codes for the rack identity card
Location codes for the rack identity card
Table 8. Rack identity card locations
Location code Part name Connector
U2nnn.mmm.sssssss-C5 Rack identity card  
U2nnn.mmm.sssssss-C5-J1   To RPC card C1 (Rack 1)
To DC-UPS E1 (expansion rack)
U2nnn.mmm.sssssss-C5-J2   To RPC card C2 (Rack 1)
To DC-UPS E2 (expansion rack)
U2nnn.mmm.sssssss-C5-J3   To rack operator panel LEDs
(front door of rack)

RPC card locations

Figure 10. Location codes for the RPC cards (Model 961)
Location codes for the RPC cards (Model 961)
Table 9. RPC card locations
Location code Part name Connector
U2nnn.mmm.sssssss-C1 RPC card (upper from rear view)  
U2nnn.mmm.sssssss-C2 RPC card (lower from rear view)  
U2nnn.mmm.sssssss-Cx-J1   Rack-ID card
U2nnn.mmm.sssssss-Cx-J4   Ethernet tray fans
U2nnn.mmm.sssssss-Cx-J201   DC-UPS Rack 1
U2nnn.mmm.sssssss-Cx-J202   debug
U2nnn.mmm.sssssss-Cx-J203   DC-UPS Rack 2
U2nnn.mmm.sssssss-Cx-J204   Local/Remote card Rack 1
U2nnn.mmm.sssssss-Cx-J205   DC-UPS Rack 3
U2nnn.mmm.sssssss-Cx-J206   Customer remote rack power control
U2nnn.mmm.sssssss-Cx-J207   DC-UPS Rack 4
U2nnn.mmm.sssssss-Cx-J208   RPC to RPC
U2nnn.mmm.sssssss-Cx-J209   Not used
U2nnn.mmm.sssssss-Cx-J210   CEC FSP upper (I2C interface)
U2nnn.mmm.sssssss-Cx-J211   Not used
U2nnn.mmm.sssssss-Cx-J212   CEC LPAR upper (serial interface)
U2nnn.mmm.sssssss-Cx-J213   Not used
U2nnn.mmm.sssssss-Cx-J214   CEC FSP lower (I2C interface)
U2nnn.mmm.sssssss-Cx-J215   Not used
U2nnn.mmm.sssssss-Cx-J216   CEC LPAR lower (serial interface)
U2nnn.mmm.sssssss-Cx-J301   Not used
U2nnn.mmm.sssssss-Cx-J302   Not used
U2nnn.mmm.sssssss-Cx-J303   Not used
U2nnn.mmm.sssssss-Cx-J304   Not used

Power distribution units

Figure 11. Locations for power distribution unit (PDU) connectors
Locations for power distribution unit (PDU) connectors
Table 10. Power distribution unit locations
Location code Part name Connector
U2nnn.mmm.sssssss-E2x
(x = 1 thru 6)		 Power distribution unit  
U2nnn.mmm.sssssss-E2x-Jy
(y = 1 thru 8) 		  208VDC output to CEC enclosure, I/O enclosure, or storage enclosures
U2nnn.mmm.sssssss-E2x-Jy
(y = 9, 10) 		  208VDC input to PDU

Ethernet switch tray, laptop tray (switches, fans, power junction assembly)

Figure 12. Ethernet switch tray locations (Model 961, rack version 1)
Ethernet tray (switches, laptop fans, power distribution assembly) locations
Figure 13. Ethernet switch tray locations (Model 961 rack version 2 rear)
Ethernet switch tray locations (Model 961 rack version 2 rear)
Figure 14. Laptop tray locations (Model 961 rack version 2 front)
Laptop tray (Model 961) (rack Version 2)
Figure 15. Power junction assembly (PJA) locations
Power junction assembly (PJA) locations
Table 11. Ethernet switch tray (switches, fans, power junction assembly) and laptop tray (fans) locations
Location code Part name Connector
U2nnn.mmm.sssssss-Ax
(x = 1 thru 4)		 Ethernet switch tray fan  
U2nnn.mmm.sssssss-E4x
(x = 1, 2)		 Power junction assembly (PJA)  
U2nnn.mmm.sssssss-Ex-Jy
(y = 1, 2)		   Fan power
U2nnn.mmm.sssssss-Ex-Jy
(y = 3, 5)		   12V input from power supply
U2nnn.mmm.sssssss-Ex-Jy
(y = 4, 6)		   12V output to Ethernet switches
U2nnn.mmm.sssssss-Ex-J7   20V input from power supply
U2nnn.mmm.sssssss-Ex-J8   20V out to laptop
U2nnn.mmm.sssssss-Ex-J9   Fan power to other PJA
U2nnn.mmm.sssssss-SWx
(x = 1, 2)		 Ethernet switch  

Power supplies, 20V and 12V for laptop, Ethernet switch tray fans, Ethernet switches

Figure 16. Power supply, 12V (Ethernet switch tray fans, Ethernet switches) locations, rear upper right of rack
Power supply, 12V (Ethernet switch tray fans, Ethernet switches) locations, rear upper right of rack
Figure 17. Power supply, 20V (laptop tray at front of rack) locations
Power supply, 20V (laptop tray at front of rack) locations
Table 12. Power supplies, 20V and 12V (laptop, Ethernet switch tray fans, Ethernet switches) locations
Location code Part name Connector
U2nnn.mmm.sssssss-E3x
(x = 1, 4)
(see Figure 14 and Figure 17)		 Power supply, 20V  
U2nnn.mmm.sssssss-E3x
(x = 2, 3, 5, 6) 		Power supply, 12V