2: System Description
21
Mains power connector
An AC power supply is used to power the computer. The power
cable plugs into this socket. Make sure the plug is fitted into the
socket firmly and the cables are routed where they cannot be
accidentally dislodged.
Serial number
Make sure that you record the serial number onto the inside front
cover of this manual for security purposes. The serial number also
identifies your computer model. If you contact RM, you may be
asked for this number.
Voltage specification label
IMPORTANT:
The input voltage selection switch is concealed behind a label to prevent
accidental tampering with the input voltage.
The computer is pre-set to 220/240V, the setting for the United Kingdom.
If you attempt to operate your computer with this switch set incorrectly or you
move the switch to the other setting during use, you will seriously damage your
computer. If you do not use the computer for a while, check the position of the
mains input voltage switch before connecting the mains supply.
Expansion slots
Adapter cards can be fitted into your computer using expansion
slots.
Monitor signal connector
The blue graphics connector is either in an expansion slot or in the
system I/O panel. This connector is a D-type 15-pin socket for
connection to industry-standard analogue VGA and Super VGA
monitors. See page 76 for diagram of this connector.
Some models have additional adapter card(s) fitted as standard
which will occupy one or more of the expansion slots (for example
an Ethernet card).
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