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Chapter 1: Introduction
Environmental Requirements 1-9
Figure 1-6: IFT-9010D BBU Module
Figure 1-7: IFT-9070D Battery Charger Board
1.5.2 Daughter Board Expansion
The installation of an optional daughter board makes four additional SCSI-320 I/O
channels available.
1.6. Environmental Requirements
When installing and running an SR controller, the following environmental
considerations must be taken into account.
1.6.1 Power Supply Requirements
Two power cord connectors facilitate the connection of two redundant power supply units
(PSUs). If redundant PSUs are used and one PSU fails, the second PSU continues to
supply power to the SR controller. The SR power requirements are listed below:
Input Voltage +5VDC, +12VDC
Power Consumption (5V)
Full Loading: 5.5A
Idle: 3.5A
Power-up: 4A
When purchasing a PSU, the power requirements listed above must be taken into
consideration. Please contact the SR controller vendor for a list of compatible PSUs.