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# BEST UNION ELECTRONICS CO., LTD.
MM AUDIO TELEPHONY 3100
Card Type Sound card
Chip Set Unidentified
Maximum Onboard None
Memory
I/O Options Game/MIDI port, line in, line out, microphone,
telephone
Data Bus 16-bit ISA
Floppy drives None
supported
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|---------------------+--------+--------------------+--------|
| 4-pin connector | CN1 | Game/MIDI port | CN7 |
|---------------------+--------+--------------------+--------|
| 4-pin connector | CN2 | Telephone | J1 |
|---------------------+--------+--------------------+--------|
| 4-pin connector | CN3 | Line in | J2 |
|---------------------+--------+--------------------+--------|
| 4-pin connector | CN4 | Microphone | J3 |
|---------------------+--------+--------------------+--------|
| 3-pin connector | CN5 | Line out | J4 |
|---------------------+--------+--------------------+--------|
| 4-pin connector | CN6 | | |
|------------------------------------------------------------|
| Note: The exact function & purpose of CN1 - CN6 is |
| unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------------------+--------+------------|
| » | I/O port address is 220h - 22Fh | JMPBO | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | I/O port address is 240h - 24Fh | JMPBO | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | EEPROM hardware settings enabled | JMPCFG | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | EEPROM hardware settings | JMPCFG | Pins 2 & 3 |
| | disabled | | closed |
|---+----------------------------------+--------+------------|
| » | Condenser microphone select | JX1 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Carbon microphone select | JX1 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+