Specifications

RT9 Powershelf Rectifier Technologies

158-1806-01.doc 5 2-Mar-06

2. Configuration

2.1 General Description

RT9 Powershelf systems are turn-key DC uninterruptible power supply solutions (DC UPS)

for powering 24VDC or 48VDC telecommunications and industrial equipment. The

Powershelf provides integrated battery management functions for a range of battery types

(VRLA, flooded Lead-acid, NiCd, Ni-MH, Li-polymer) to enable easy commissioning of a

DC UPS or it can be used as a standalone DC source when no batteries are used.

The Powershelf provides the following integrated features:

• battery (& load) distribution • battery & load circuit breaker trip sensing

• battery charge current limiting • short circuit and reverse polarity protection

• battery temperature sensing • n+1 redundant rectifiers

• low voltage disconnection • a monitoring and control module (MiniCSU-3)

• automated/remote battery discharge testing • super capacitor backed real-time system clock

• accurate temperature compensated Float and

Equalisation voltages

• optional remote communication capability,

including web-based protocols

• optional modules for monitoring AC power and

battery cell voltages

• all rectifiers and the controller are hot-swap and

plug-and-play capable

• optional AC distribution

2.2 System Description

2.2.1 Front View

Figure 2.1 System blocks (PSLF-1110)

Figure 2.2 System blocks (PSLF-1115)