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# DIGI INTERNATIONAL, INC.
COM/4I, COM/8I
Card Type Serial
Processor 80C186
Processor Speed 10MHz
Chipset Unidentified
Maximum Onboard 256KB RAM
Memory
I/O Options Serial ports (4 for COM/4i, 8 for COM/8i)
Data Bus 8/16 bit ISA
Card Size Full height, full length
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------+-------+-------------------+-------|
| Header to | H1A | Header to main | H2B |
| daughterboard H1B | | board H2A (on | |
| | | back of card) | |
|------------------------+-------+-------------------+-------|
| Header to main board | H1B | RS-232, RS-422, | P1 |
| H1A (on back of card) | | or RS-485 serial | |
| | | ports via DB-78 | |
| | | connector | |
|------------------------+-------+-------------------+-------|
| Header to | H2A | | |
| daughterboard H2B | | | |
|------------------------------------------------------------|
| Note:Standard serial ports are provided on an |
| external expansion box. |
| |
| The types of serial ports provided are configured at |
| the factory and are not user-configurable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|---------------------------------------+-------+------------|
| » | Factory configured - do not alter | J17 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | J2 | J3 | J4 |
|---------+----------------+----------------+----------------|
| 100h | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 110h | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 120h | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 200h | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 220h | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 300h | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 320h | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| Setting | J5 | J6 | J7 | J8 | J9 |
|--------------+---------+--------+--------+--------+--------|
| | 2/9 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 3 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 4 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 5 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 6 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 7 | Open | Open | Open | Open | Closed |
|---+----------+---------+--------+--------+--------+--------|
| | 10 | Open | Open | Open | Closed | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 11 | Open | Open | Closed | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 12 | Open | Closed | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 15 | Closed | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| » | Disabled | Open | Open | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION (CON'T) |
|------------------------------------------------------------|
| Setting | J10 | J11 | J12 | J13 | J14 |
|--------------+---------+--------+--------+--------+--------|
| | 2/9 | Open | Open | Open | Open | Closed |
|---+----------+---------+--------+--------+--------+--------|
| | 3 | Open | Open | Open | Closed | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 4 | Open | Open | Closed | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 5 | Open | Closed | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 6 | Closed | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 7 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 10 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 11 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 12 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| | 15 | Open | Open | Open | Open | Open |
|---+----------+---------+--------+--------+--------+--------|
| » | Disabled | Open | Open | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SHARED MEMORY ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | J15 | J16 |
|------------------+--------------------+--------------------|
| 0C0000h | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 0C8000h | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 0D0000h | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 0D8000h | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EPROM SIZE SELECTION |
|------------------------------------------------------------|
| Setting | JP1 | JP2 |
|------------------+--------------------+--------------------|
| » | 8KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | 16KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | 32KB | Pins 1 & 2 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | 64KB | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+