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2.14 Audio interfaces (CN4, CN10, CN11)
The AIMB-340FA is equipped with a high quality audio interface, which
provides 16-bit CD-quality recording and playback as well as OPL3 com-
patible FM music. It is supported by all major operating systems and is
100% Sound Blaster Pro compatible.
2.14.1 Audio connector (CN4)
The AIMB-340FA provides all major audio signal connectors, CN4.
These audio signals include Microphone in (mono), Line in (stereo), Line
out (stereo).
2.14.2 Internal Speaker Connector (CN10)
There is an internal speaker on CN10. It is a 4-pin box header connector.
2.14.3 CD audio-in connector (CN11)
All CD-ROM drives can provide analog audio signal output when used as
a music CD player. The CN11 on AIMB-340FA is a connector to input
CD audio signal into the audio controller. The audio cable of your CD-
ROM drive will be used to connect to CN11.
2.15 Serial (COM1-6) (CN2, CN27, CN25)
The AIMB-340F has a total of six/two on-board RS-232 serial ports,
COM1,3,4,5,6: RS-232, COM2: RS-232/422/485, COM3~6 share IRQ. It
will depend on the OS support to have a share IRQ capability. The OS
which supports shared IRQs is Windows98/2000/XP. All serial ports have
+5 V and +12 V power capabilities on both pin #1 and pin #9, depending
on the jumper setting. Pin assignments for both internal and external
COM ports can be found in the Appendix.
2.15.1 Primary (COM1:CN2,COM2:CN27)
COM1:CN2 serial port is one external DB-9, COM2:CN27 is one internal
10-pin header giving the user the flexibility to adapt the board to many
different systems. IRQ for COM1 and COM2 is fixed with COM1 on
IRQ4 and COM2 on IRQ3. COM1 and COM2 can be enabled or disabled
via BIOS (see Chapter 4).
2.15.2 Secondary (COM3~COM6: CN25)
The secondary serial ports each have one 40-pin, internally positioned
header connection. The IRQ 5 or IRQ 10 is for COM3~COM6
share.COM3~COM6 can be enabled/disabled via BIOS (see Chapter 4).
And check the IRQ resource allocate in the appendix.
19
Chapter 2
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