P o w e r s y s t e m
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Cooling Fan Board (motherboard fans)
This small board has the following important functions:
♦
One power/signal ribbon cable socket for the cable from the
motherboard power distribution board, (1).
♦
An input from the sensor switch of the side panel lock, (2).
♦
Three power connectors for the fans, (3, 4, and 5). A small printed
graphic on the board indicates which fan connects to which socket.
♦
One thermistor mounted on the board which serves as an ambient
temperature sensor, (6).
1
2
3
4
5
6
Fig 14-2 Cooling fan board
Uninterruptible Power Supply
The Uninterruptible Power Supply is a self-contained battery-backed unit
which supplies the system unit with all its power requirements. The
following is a list of its major features:
♦
1000W maximum total DC output
♦
Auto-ranging AC input voltage selection
♦
48V DC input from backup batteries
♦
Battery power circuit breaker
♦
Constant voltage battery charging output
♦
Remote control/monitoring facility
♦
Cooling fans mounted on, and powered from, the power supply
♦
Compliance with all relevant safety standards
Four 12V batteries mounted inside the power supply unit in a removable
pack provide backup power in the event of a mains electricity supply failure.
These batteries allow the system to function normally during a short power
failure. During a longer failure, the batteries allow the system to be shut
down in an orderly fashion, thereby preventing any data loss. Whenever the
AC supply is available, the power supply charges the batteries unless the
battery isolation switch (i.e. circuit breaker) is in the OFF position.
Summary of Contents for APRICOT FT4200
Page 1: ...FT4200 Owner s Handbook NATIONAL ACCREDITATION OFCERTIFICATION BODIES ...
Page 2: ...APRICOT FT4200 OWNER S HANDBOOK ...
Page 10: ...APRICOT FT4200 Section One Startup and operating Upgrading and expansion ...
Page 36: ...APRICOT FT4200 Section Two Detailed service Information for authorised engineers ...