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# FRANKLIN TELECOMMUNICATIONS CORPORATION
ICC-4
Card Type Serial multiplexer, telephony
Chipset Unidentified
I/O Options Serial ports (4), FABB bus
Data Bus 8-bit ISA
Card Size Full height, three-quarters length
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-------------------------+--------+-----------------+-------|
| Serial ports via DB-37 | CN1 | Franklin Above | CN3 |
| connector | | Board Bus | |
|-------------------------+--------+-----------------+-------|
| Franklin Above Board | CN2 | | |
| Bus | | | |
|------------------------------------------------------------|
| Note:Standard DB-25 serial ports are provided on an |
| included adapter cable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FABB BUS SELECTION |
|------------------------------------------------------------|
| Setting | JP5/A | JP5/B | JP5/C | JP5/D |
|------------+-----------+-----------+-----------+-----------|
| 0 | Closed | Open | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 1 | Open | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 2 | Open | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 3 | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FABB BUS SELECTION |
|------------------------------------------------------------|
| Setting | JP6/A | JP6/B | JP6/C | JP6/D |
|------------+-----------+-----------+-----------+-----------|
| 0 | Closed | Open | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 1 | Open | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 2 | Open | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 3 | Open | Open | Open | Closed |
|------------------------------------------------------------|
| Note:JP5 and JP6 select receive bus and transmit bus. |
| It is not known which jumper block selects which, |
| although they are generally set to the same bus. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FABB CHANNEL SELECTION |
|------------------------------------------------------------|
| Setting | JP1/A | JP1/B | JP1/C | JP1/D | JP1/E |
|----------+---------+---------+---------+---------+---------|
| 0 | Closed | Closed | Closed | Closed | Closed |
|----------+---------+---------+---------+---------+---------|
| 1 | Closed | Closed | Closed | Open | Closed |
|----------+---------+---------+---------+---------+---------|
| 2 | Closed | Closed | Closed | Closed | Open |
|----------+---------+---------+---------+---------+---------|
| 3 | Closed | Closed | Closed | Open | Open |
|----------+---------+---------+---------+---------+---------|
| 4 | Closed | Closed | Open | Closed | Closed |
|----------+---------+---------+---------+---------+---------|
| 27 | Open | Open | Closed | Open | Open |
|----------+---------+---------+---------+---------+---------|
| 28 | Open | Open | Open | Closed | Closed |
|----------+---------+---------+---------+---------+---------|
| 29 | Open | Open | Open | Open | Closed |
|----------+---------+---------+---------+---------+---------|
| 30 | Open | Open | Open | Closed | Open |
|----------+---------+---------+---------+---------+---------|
| 31 | Open | Open | Open | Open | Open |
|------------------------------------------------------------|
| Note:A total of 32 channel settings are available. |
| The jumpers are a binary representation of the |
| decimal addresses. JP1/A is the Most Significant Bit |
| and jumper JP1/E is the Least Significant Bit. The |
| jumpers have the following decimal values: JP1/E=1, |
| JP1/D=2, JP1/C=4, JP1/B=8, JP1/A=16, . Open the |
| jumpers and add the values of the jumpers that are |
| open to obtain the correct channel. (Open=1, |
| Closed=0) |
| |
| The settings for JP2 through JP4 are identical to |
| those for JP1. JP1 sets the FABB channel for serial |
| port 1, and JP2 through JP4 set the FABB channel for |
| serial ports 2 through 4, respectively. |
+------------------------------------------------------------+