NonStop NS-Series Planning Guide (H06.05+)

Modular System Hardware

HP Integrity NonStop NS-Series Planning Guide—529567-008

5-27

UPS and ERM (Optional)

An uninterruptible power supply (UPS) is optional but recommended where a site UPS

is not available. You can use any UPS that meets the modular cabinet power

requirements for all enclosures being powered by the UPS. One UPS option is the HP

R5500 XR UPS. For information about the requirements for installing a UPS other than

the HP R5500 XR UPS in an Integrity NonStop NS-series system, see Uninterruptible

Power Supply (UPS) on page 2-3.

Cabinet configurations that include an R5500 XR UPS also have one extended runtime

module (ERM). An ERM is a battery module that extends the overall battery-supported

system run time. A second ERM can be added for even longer battery-supported

system run time.

Adding an R5500 XR UPS to a modular cabinet in the field requires removing the PDU

on the right side of the modular cabinet and installing HP extension bars that are

compatible with the UPS. A factory-installed UPS ships with the HP extension bars

already installed on the right side of the modular cabinet. The PDU and extension bars

are oriented inward, facing the components within the modular cabinet. Both the UPS

and the ERM are 3U high and must reside in the bottom of the cabinet.

This illustration shows the location of a UPS and an ERM in a modular cabinet:

Note. Retrofitting a system in the field with a UPS and ERMs will likely require moving all

installed enclosures up in the modular cabinet to provide space for the new hardware. One or

more of the enclosures that formerly resided in the modular cabinet might be displaced and will

therefore have to be installed in another modular cabinet that would also need a UPS and

ERMs installed. Additionally, lifting equipment might be required to lift heavy enclosures to their

new location.

Note. The AC input power cord for the R5500 XR UPS is routed to exit the modular cabinet at

either the top or bottom rear corners of the cabinet depending on what is ordered for the site

power feed, and the large output receptacle is unused.

VST504.vsd

Uninterruptible Power

Supply (UPS)

Extended Run Time

Module (ERM)

ERM - UPS Cable

Unused

Cable

To AC Power Source

To Extension Bars