EMC SPS Replacement Battery EMC Part #: 078-000-063 078-000-064 100-809-016; Dell Part #: WY652 for CX4-120 CX4-240 CX4-480 Systems
- Brand: EMC
- Part #: 078-000-063, 078-000-064, 100-809-016
- Dell Part #: WY652,0WY652
- Compatibility:
- CX4-120 CX4-240 CX4-480 Systems
- Condition: Refurbished with new batteries
- Warranty: 1 (one) year Tekmart warranty
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This EMC SPS is a 1200W unit compatible with the EMC CX4-120, CX4-240, and CX4-480.
All EMC SPS units are fully refurbished with brand new battery cores and come with a 1 (one) year warranty
EMC CLARiiON Standby Power Supply (SPS) / Replacement Battery 078-000-063 / 078-000-064 / 100-809-016 / WY652
As shown in Figure 1, the CX4-120, CX4-240, CX4-480 SPE uses two 1.2-kilowatt SPSs to maintain power to the storage system during a power loss; this allows a full dump of the write cache to a reserved area on the persistent disk.
In the case of the CX4-120, CX4-240 and CX4-480, SPS power output connectors are used to power the SPE as well as to power the first DAE on the first back-end loop.

Figure 1. View of CX4-120, CX4-240, CX4-480 Standby Power Supply (SPS)
It is important to cable each SPS so it connects completely to either the A side or the B side. For example, if you are looking at the SPS from the back, they should be configured as follows:
- :: SPS on the right: Power-out and sense cables should connect to power supply A and SP A.
- :: SPS on the left: Power-out and sense cables should connect to power supply B and SP B.
If an SPS is cabled with the SPS sense cable going to SP A and the power-out cable going to power supply B (or vice versa), error conditions are displayed when the SPS is tested while it is charging.