Back Panel Connectors - Viglen VIG556M Manual

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Back Panel Connectors

The motherboard external IO connectors are attached to a metallic I/O shield. This
shield serves several purposes:
• It protects the sensitive motherboard from any external EMC interference.
• It stops the computer from interfering with other electrical devices.
• It allows the motherboard to be easily upgraded in the future without having to
resort to buying a whole new case. Simply change the I/O shield to match the
motherboard.
The I/O shield provides external access to PS/2 keyboard and mouse connectors as
well as one serial port, one parallel port, four USB ports, one LAN Port and the audio
connectors.
NOTE:
Power to the computer should be turned off before a keyboard or mouse is
connected or disconnected.
A/B – PS/2 Keyboard/Mouse Ports
The purple connector is for a PS/2 keyboard and the green connector is for a PS/2
mouse connector.
C – Serial Port
This 9-pin COM1 port is for a pointing device or other serial devices.
D – Parallel Port
This 25-pin port allows connection of a parallel device e.g. Printer, scanner etc
E –Video Graphics Adapter Port
This 15-pin port is for a VGA monitor or other VGA-compatible devices.
V1.0
Figure 2: Rear I/O Shield
VIG556M Motherboard Manual
18

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