DS8000 Service Documentation Version 6.3.3
Rack power and cooling location codes (Models 951, 95E)
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.
| Part | See |
|---|---|
Locations overview |
|
| Battery module set | Figure 7 |
| Local remote switch card | Figure 9 |
| Power distribution unit | Figure 13 |
Primary power supply (PPS) |
|
| Rack identity card | Figure 11 |
| RPC card | Figure 12 |
| System z® local remote switch card | Figure 10 |
Overview of locations (base rack)
Figure 1. Primary power supply rack locations

| Location code | Part name |
|---|---|
| U2nnn.mmm.sssssss-Exx (xx = 10 thru 12) |
Battery module enclosure |
| U2nnn.mmm.sssssss-E1 (PPS1 / cpPPS10) |
Primary power supply (upper) |
| U2nnn.mmm.sssssss-E2 (PPS2 / cpPPS11) |
Primary power supply (lower) |
| U2nnn.mmm.sssssss-Exx (xx = 21 thru E26) |
Power distribution units |
U789D.001.sssssss |
CEC enclosure |
U1400.rBn.sssssss |
I/O enclosure |
| U2nnn.D02.sssssss | Storage enclosure |
Overview of locations (expansion rack)
Figure 2. Expansion rack locations

| Location code | Part name |
|---|---|
| U2nnn.mmm.sssssss-Exx (xx = 10 thru 12) |
Battery module |
| U2nnn.mmm.sssssss-E1 (PPS1 / cpPPSx 0 where x = rack #) |
Primary power supply (upper) |
| U2nnn.mmm.sssssss-E2 (PPS2 / cpPPSx 1 where x = rack #) |
Primary power supply (lower) |
| U2nnn.mmm.sssssss-Exx (xx = 21 thru 26) |
Power distribution units |
PPS locations (front)
Figure 3. Location codes
for the PPS (front)

| Location code | Part name | Connector |
|---|---|---|
| U2nnn.mmm.sssssss-Ex1 | Primary power supply (PPS) | |
| U2nnn.mmm.sssssss-Ex-A1 | PPS fan (top) | Power/signal |
| U2nnn.mmm.sssssss-Ex-A2 | PPS fan (middle) | Power/signal |
| U2nnn.mmm.sssssss-Ex-A3 | PPS fan (bottom) | Power/signal |
| 2 | 208VDC base module | |
| 2 | PFC module | |
Notes:
|
||
PPS locations (rear)
Figure 4. Location codes for
the PPS (rear)

| Location code | Part name | Connector |
|---|---|---|
| U2nnn.mmm.sssssss-Ex1 | Primary power supply (PPS) | |
| U2nnn.mmm.sssssss-Ex-E1 | 208V power module | |
| U2nnn.mmm.sssssss-Ex-E2 | Booster power module (optional) | |
| U2nnn.mmm.sssssss-Ex-E3 | 208V power module | |
| 2 | AC input power module3 | |
| U2nnn.mmm.sssssss-Ex-S1 | Sequencer module4 | |
AC input power module locations
A code is not associated with the location of the parts on the AC input power module. These parts are shown only for reference.
Figure 5. Location
codes for the AC input power module

Sequencer module locations
Figure 6. Location
codes for the PPS sequencer module

| Location code | Part name | Connector |
|---|---|---|
| U2nnn.mmm.sssssss-Ex | Sequencer module | |
| U2nnn.mmm.sssssss-Ex-T1 | RPC 1 communication | |
| U2nnn.mmm.sssssss-Ex-T2 | RPC 2 communication | |
| U2nnn.mmm.sssssss-Ex-T3 | PPS to PPS communication | |
| U2nnn.mmm.sssssss-Ex-T4 | UEPO loop | |
| U2nnn.mmm.sssssss-Ex-T5 | Rack identity card | |
| U2nnn.mmm.sssssss-Ex-T6 | Battery backup unit interface | |
| U2nnn.mmm.sssssss-Ex-T7 | Battery backup unit charge | |
| J8-1 (not a location code) | 208 VDC to bus bars for CEC and I/O enclosures | |
| J8-2 (Not a location code. Connector may not be present on some hardware levels.) | 208 VDC to bus bars for CEC and I/O enclosures | |
| U2nnn.mmm.sssssss-Ex-T9 | 208 VDC to management console and Ethernet switches | |
| U2nnn.mmm.sssssss-Ex-T10 | 208 VDC to management console and Ethernet switches |
Battery module enclosure locations
Figure 7. Battery module
enclosure locations (rear)

Figure 8. Battery module set locations
(front)

| Location code | Part name | Connector |
|---|---|---|
U2nnn.mmm.sssssss-E1x-E1 |
Battery module enclosure |
|
| U2nnn.mmm.sssssss-E1x-E2 | Battery module set (3 battery modules in a battery module enclosure) | |
| U2nnn.mmm.sssssss-E1x-T1 | 208VDC bus bar | |
| U2nnn.mmm.sssssss-E1x-T2 | 208VDC bus bar | |
| U2nnn.mmm.sssssss-E1x-T3 | PPS charging | |
| U2nnn.mmm.sssssss-E1x-T4 | PPS charging | |
| U2nnn.mmm.sssssss-E1x-T5 | PPS control interface | |
| U2nnn.mmm.sssssss-E1x-T6 | PPS control interface | |
| U2nnn.mmm.sssssss-E1x-A1 | Battery module enclosure fan |
Local remote switch card locations
Figure 9. Location codes for the local remote switch card

| Location code | Part name | Connector |
|---|---|---|
| U2nnn.mmm.sssssss-C6 | Local remote switch card |
System z local remote switch card locations
Figure 10. Location codes for the zSeries local remote switch card

| Location code | Part name | Connector |
|---|---|---|
| U2nnn.mmm.sssssss-C6 | System z local remote switch card | |
| U2nnn.mmm.sssssss-C6-T1 | Customer power control cable | |
| U2nnn.mmm.sssssss-C6-T2 | Customer power control cable | |
| U2nnn.mmm.sssssss-C6-T3 | Customer power control cable | |
| U2nnn.mmm.sssssss-C6-T4 | Customer power control cable | |
| U2nnn.mmm.sssssss-C6-T5 | RPC-1 card | |
| U2nnn.mmm.sssssss-C6-T6 | RPC-2 card |
Rack identity card locations
Figure 11. Location codes for the rack
identity card

| Location code | Part name | Connector |
|---|---|---|
| U2nnn.mmm.sssssss-C5 | Rack identity card | |
| U2nnn.mmm.sssssss-C5-T1 | To
RPC-1 card C1 (Rack 1) To PPS E1 (expansion rack) |
|
| U2nnn.mmm.sssssss-C5-T2 | To
RPC-2 card C2 (Rack 1) To PPS E2 (expansion rack) |
RPC card locations
Figure 12. Location codes
for the RPC cards

| Location code | Part name | Connector |
|---|---|---|
| U2nnn.mmm.sssssss-C1 | RPC card (right from rear view) | |
| U2nnn.mmm.sssssss-C2 | RPC card (left from rear view) | |
| U2nnn.mmm.sssssss-Cx-T1 | Rack identity card | |
| U2nnn.mmm.sssssss-Cx-T201 | PPS rack 1 | |
| U2nnn.mmm.sssssss-Cx-T202 | reserved | |
| U2nnn.mmm.sssssss-Cx-T203 | PPS rack 2 | |
| U2nnn.mmm.sssssss-Cx-T204 | Local remote switch card | |
| U2nnn.mmm.sssssss-Cx-T205 | PPS rack 3 | |
| U2nnn.mmm.sssssss-Cx-T206 | reserved | |
| U2nnn.mmm.sssssss-Cx-T207 | PPS rack 4 | |
| U2nnn.mmm.sssssss-Cx-T208 | RPC card to RPC card | |
| U2nnn.mmm.sssssss-Cx-T209 | PPS rack 5 | |
| U2nnn.mmm.sssssss-Cx-T210 | CEC enclosure 1 | |
| U2nnn.mmm.sssssss-Cx-T211 | reserved | |
| U2nnn.mmm.sssssss-Cx-T212 | reserved | |
| U2nnn.mmm.sssssss-Cx-T213 | reserved | |
| U2nnn.mmm.sssssss-Cx-T214 | CEC enclosure 2 | |
| U2nnn.mmm.sssssss-Cx-T215 | reserved | |
| U2nnn.mmm.sssssss-Cx-T216 | not used |
Power distribution units
Figure 13. Locations for power distribution unit (PDU) connectors

| Location code | Part name | Connector |
|---|---|---|
| U2nnn.mmm.sssssss-E2x (x = 1 thru 6) |
Power distribution unit | |
| U2nnn.mmm.sssssss-E2x-Ty (y = 1 thru 8) |
208VDC output to CEC enclosure, I/O enclosure, or storage enclosures | |
| U2nnn.mmm.sssssss-E2x-Ty (y = 9, 10) |
208VDC input to PDU |
U789D.001.sssssss
U1400.rBn.sssssss