S1590 Trinity 100AT
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Remember, always read the manuals and installation notes that come with the
adapter cards. They contain important information which will help you install
the components right, the first time.
8. Connecting PS/2, USB, Serial & Parallel Devices
Connecting Com and Printer Ports
Like the IDE and floppy cables, the colored or red edge of the cable always
denotes pin 1 (Figure 2-15). Similarly, pin 1 on the motherboard is always
pointing towards the keyboard connector or edge of the board. TYAN cables
conform to the IBM standard pinouts and will differ from most other manufac-
turers’.
Figure 2-15
Other cables will not work on TYAN boards. The Printer and Com1 ports are on
the same back plate. You want to make sure that you correctly align the
connectors with the pins on the board beacuse they are easy to miss. On most
TYAN cables, there should be a pin missing on the motherboard. This is
normal since it lines up with a key pin on the I/O connectors. This forces you
to align the connector in the correct direction. The Printer port and Com2 are
easily confused. The Printer cable is always attached with Com1 (Figure 2-16
on the following page) where Com2 is supplied seperately on a second back
plate (Figure 2-17 on the following page). Remember: Only TYAN cables will
work on this motherboard. If you are using an existing case with old cables,
your system will not function properly. Use only TYAN-approved connectors.
INST
ALL
