Filter
Top Products
Chapter 1. Product Overview
EK–SMCPQ–UG. C01 1–13
Figure 1–8 Power Supply
SHR-103
4
1.5.6 Uninterruptable Power Supply (UPS)
The primary function of the UPS is to keep the entire storage system powered-up
to enable the controller(s) to flush cache to disks. The UPS also protects the stor-
age system from problems associated with poor quality AC power or a complete
loss of AC power. The UPS is normally mounted in a lower shelf slot in the
cabinet using a custom set of mounting brackets.
The major features of the UPS include Battery Management Technology (dou-
bles battery life and speeds recharge time), hot-swap batteries to simplify serv-
ice, voltage regulation, power control which enables scheduled shutdowns and
maximized run time, and network surge protection.
The front panel display has user controls (LEDs and control buttons) and the rear
panel contains an RS-232 COMM port which provides UPS status to the elec-
tronics in the Controller Shelf. The rear panel also contains the network surge
protector, and four power receptacles. An audible alarm is activated when input
power fails, as a low battery warning, or whenever the UPS is in need of servic-
ing. The front panel control switches are used to set the output voltage level and
battery low-warning option.
The UPS automatically recharges its battery when power is returned following a
power failure. Recharge time is less than four hours depending on the energy re-
quirements of your load and the length of the power outage.
Its own installation, operation, and service manual support the UPS. The manual
describes the UPS in detail and is part of the documentation set enclosed with
your storage system.