Electrical Installation; Installing The Keyboard And Mouse; Fig. 5: Connecting The Scd 1297-K To The Computer System Over A Longer Distance - Siemens SCD 1297-K (33) Operating Instruction

Operating instruction
If the control panel and the computer system are further apart or if there are strong
interference fields in the vicinity then the second variation using the special interface (long
distance, X27) should be used for the mouse and keyboard. Here, both mouse and keyboard
signals are transmitted over one cable, a standard CAT 5/6/7 Ethernet cable (note the signal
configuration).

Fig. 5: Connecting the SCD 1297-K to the computer system over a longer distance

2.5

Electrical Installation

Before applying power to the SCD 1297-K, check that all connectors are plugged in correctly
and secured. If a VGA signal is present, a picture should appear immediately on the display.
2.6

Installing the Keyboard and Mouse

When a computer starts up it usually checks and initializes the keyboard and mouse. If either
is not connected or is connected incorrectly, the computer's start up procedure may stop or
else the input device may not be available after it has been subsequently connected. This is
especially applicable when a mouse is connected to a PC compatible computer after it has
booted up.
The keyboard and/or the mouse should not be plugged in or unplugged while the computer is
running. This could result in misinterpretation of the keyboard codes/mouse signals.
Therefore, the control panel should always be switched on before or at the same time as the
computer system so that the keyboard and mouse are recognized and initialized correctly.
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Control panel SCD 1297-K DOC-Nr.: b40008de3.doc