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# MULTI-TECH SYSTEMS, INC.
ISI552PC
Card Type Serial interface
Chipset Controller Unidentified
I/O Options Serial ports (2)
Maximum Dram N/A
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|-------------------------------+----------------------------|
| Serial port 1 | J1 |
|-------------------------------+----------------------------|
| Serial port 2 | J2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED-DO NOT ALTER |
|------------------------------------------------------------|
| Switch | Setting |
|------------------------------+-----------------------------|
| SW1/8 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 1 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP1 |
|----------------------------+-------------------------------|
| 2 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3 | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 4 | Pins 5 & 6 closed |
|----------------------------+-------------------------------|
| 5 | Pins 7 & 8 closed |
|----------------------------+-------------------------------|
| 7 | Pins 9 & 10 closed |
|----------------------------+-------------------------------|
| 10 | Pins 11 & 12 closed |
|----------------------------+-------------------------------|
| 11 | Pins 13 & 14 closed |
|----------------------------+-------------------------------|
| 12 | Pins 15 & 16 closed |
|----------------------------+-------------------------------|
| 15 | Pins 17 & 18 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 1 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP1 |
|----------------------------+-------------------------------|
| 2 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3 | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 4 | Pins 5 & 6 closed |
|----------------------------+-------------------------------|
| 5 | Pins 7 & 8 closed |
|----------------------------+-------------------------------|
| 7 | Pins 9 & 10 closed |
|----------------------------+-------------------------------|
| 10 | Pins 11 & 12 closed |
|----------------------------+-------------------------------|
| 11 | Pins 13 & 14 closed |
|----------------------------+-------------------------------|
| 12 | Pins 15 & 16 closed |
|----------------------------+-------------------------------|
| 15 | Pins 17 & 18 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 1 ADDRESS SELECT |
|------------------------------------------------------------|
| Address | SW1/7 | SW1/6 |SW1/5 |SW1/4 |SW1/3 |SW1/2 |SW1/1 |
|---------+-------+-------+------+------+------+------+------|
| 100h | Off | Off | On | Off | Off | Off | Off |
|---------+-------+-------+------+------+------+------+------|
| 108h | Off | Off | On | Off | Off | Off | On |
|---------+-------+-------+------+------+------+------+------|
| 110h | Off | Off | On | Off | Off | On | Off |
|---------+-------+-------+------+------+------+------+------|
| 118h | Off | Off | On | Off | Off | On | On |
|---------+-------+-------+------+------+------+------+------|
| 2E8h | On | Off | On | On | On | Off | On |
| (COM4:) | | | | | | | |
|---------+-------+-------+------+------+------+------+------|
| 2F8h | On | Off | On | On | On | On | On |
| (COM2:) | | | | | | | |
|---------+-------+-------+------+------+------+------+------|
| 3E0 | On | On | On | On | On | Off | Off |
|---------+-------+-------+------+------+------+------+------|
| 3E8h | On | On | On | On | On | Off | On |
| (COM3:) | | | | | | | |
|---------+-------+-------+------+------+------+------+------|
| 3F0h | On | On | On | On | On | On | Off |
|---------+-------+-------+------+------+------+------+------|
| 3F8h | On | On | On | On | On | On | On |
| (COM1:) | | | | | | | |
|------------------------------------------------------------|
|Note: A total of 752 memory base address settings are |
|available. The switches are a binary representation of the |
|decimal addresses. Switch 1 is the Least Significant Bit and|
|switch 7 is the Most Significant Bit. The switches have the |
|following decimal values: switch 1=8, 2=16, 3=32, 4=64, |
|5=128, 6=256, 7=512. Add the values of the on switches to |
|obtain the correct memory address. (Off=0, On=1) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 2 ADDRESS SELECT |
|------------------------------------------------------------|
| Address | SW2/7 | SW2/6 |SW2/5 |SW2/4 |SW2/3 |SW2/2 |SW2/1 |
|---------+-------+-------+------+------+------+------+------|
| 100h | Off | Off | On | Off | Off | Off | Off |
|---------+-------+-------+------+------+------+------+------|
| 108h | Off | Off | On | Off | Off | Off | On |
|---------+-------+-------+------+------+------+------+------|
| 110h | Off | Off | On | Off | Off | On | Off |
|---------+-------+-------+------+------+------+------+------|
| 118h | Off | Off | On | Off | Off | On | On |
|---------+-------+-------+------+------+------+------+------|
| 2E8h | On | Off | On | On | On | Off | On |
| (COM4:) | | | | | | | |
|---------+-------+-------+------+------+------+------+------|
| 2F8h | On | Off | On | On | On | On | On |
| (COM2:) | | | | | | | |
|---------+-------+-------+------+------+------+------+------|
| 3E0 | On | On | On | On | On | Off | Off |
|---------+-------+-------+------+------+------+------+------|
| 3E8h | On | On | On | On | On | Off | On |
| (COM3:) | | | | | | | |
|---------+-------+-------+------+------+------+------+------|
| 3F0h | On | On | On | On | On | On | Off |
|---------+-------+-------+------+------+------+------+------|
| 3F8h | On | On | On | On | On | On | On |
| (COM1:) | | | | | | | |
|------------------------------------------------------------|
|Note: A total of 752 memory base address settings are |
|available. The switches are a binary representation of the |
|decimal addresses. Switch 1 is the Least Significant Bit and|
|switch 7 is the Most Significant Bit. The switches have the |
|following decimal values: switch 1=8, 2=16, 3=32, 4=64, |
|5=128, 6=256, 7=512. Add the values of the on switches to |
|obtain the correct memory address. (Off=0, On=1) |
+------------------------------------------------------------+