2 Hardware Configuration
The QSC-100 is automatically configured at boot time by the computer's BIOS or
operating system. There are no required switches or jumpers to set for installation.
This chapter lists a number of optional jumper settings that control various hardware
features. Jumpers J3-J6 are grouped together at the end of the board opposite the D-37
connector. Any changes from the factory default should be made before installing the QSC-100
in the computer.
2.1 Factory Default Configuration
Figure 2 shows the jumper configuration as shipped from the factory, with two spare
jumpers applied in neutral positions. Remove one or both and apply as shown in following
sections to set optional features.
SPAD
X2
X4
X8
J3
J4
J5
J6
Figure 2 --- Factory default jumper configuration
2.2 Enable Scratchpad Register (SPAD, J6)
In the default configuration, an Interrupt Status Register and an Options Register (see
page 0) replace the scratchpad (base a 7) of each UART. If the SPAD jumper is applied
as in Figure 3, the UART scratchpad registers are enabled, and the Interrupt Status Register and
the Options Register are not available.
SPAD
X2
X4
X8
J3
J4
J5
J6
Figure 3 --- Enable scratchpad registers
Quatech QSC-100 User's Manual
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