COMTROL CORPORATION
===================

   HOSTESS 554 RJ45

   Card Type         Serial                                       
   Chipset           16554                                        
   I/O Options       Serial ports (4)                             
   Data Bus          16-bit ISA                                   
   Card Size         Full-height, half-length                     

<gopher://bitreich.org/I/th99/i/C-D/53164-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function       | Label |      Function       | Label |
   |----------------------+-------+---------------------+-------|
   | Serial port 1        |  J1   | Serial port 3       |  J3   |
   |----------------------+-------+---------------------+-------|
   | Serial port 2        |  J2   | Serial port 4       |  J4   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Setting                 | Label | Position  |
   |----------------------------------------+-------+-----------|
   | Interrupt mask enabled                 | SW2/1 |    On     |
   |----------------------------------------+-------+-----------|
   | Interrupt mask disabled                | SW2/1 |    Off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 1 CONFIGURATION                 |
   |------------------------------------------------------------|
   | Setting |  JP2/A   |  JP2/B  |  JP2/C  |  JP2/D  |  JP2/E  |
   |---------+----------+---------+---------+---------+---------|
   | RS-232  | Pins 1 & | Pins 1  | Pins 1  | Pins 1  | Pins 1  |
   |         |    2     |   & 2   |   & 2   |   & 2   |   & 2   |
   |---------+----------+---------+---------+---------+---------|
   | RS-422  | Pins 2 & | Pins 2  | Pins 2  | Pins 2  | Pins 2  |
   |         |    3     |   & 3   |   & 3   |   & 3   |   & 3   |
   |------------------------------------------------------------|
   |      Note:Pins designated are in the closed position.      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 2 CONFIGURATION                 |
   |------------------------------------------------------------|
   | Setting |  JP3/A   |  JP3/B  |  JP3/C  |  JP3/D  |  JP3/E  |
   |---------+----------+---------+---------+---------+---------|
   | RS-232  | Pins 1 & | Pins 1  | Pins 1  | Pins 1  | Pins 1  |
   |         |    2     |   & 2   |   & 2   |   & 2   |   & 2   |
   |---------+----------+---------+---------+---------+---------|
   | RS-422  | Pins 2 & | Pins 2  | Pins 2  | Pins 2  | Pins 2  |
   |         |    3     |   & 3   |   & 3   |   & 3   |   & 3   |
   |------------------------------------------------------------|
   |      Note:Pins designated are in the closed position.      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 3 CONFIGURATION                 |
   |------------------------------------------------------------|
   | Setting |  JP4/A   |  JP4/B  |  JP4/C  |  JP4/D  |  JP4/E  |
   |---------+----------+---------+---------+---------+---------|
   | RS-232  | Pins 1 & | Pins 1  | Pins 1  | Pins 1  | Pins 1  |
   |         |    2     |   & 2   |   & 2   |   & 2   |   & 2   |
   |---------+----------+---------+---------+---------+---------|
   | RS-422  | Pins 2 & | Pins 2  | Pins 2  | Pins 2  | Pins 2  |
   |         |    3     |   & 3   |   & 3   |   & 3   |   & 3   |
   |------------------------------------------------------------|
   |      Note:Pins designated are in the closed position.      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 4 CONFIGURATION                 |
   |------------------------------------------------------------|
   | Setting |  JP5/A   |  JP5/B  |  JP5/C  |  JP5/D  |  JP5/E  |
   |---------+----------+---------+---------+---------+---------|
   | RS-232  | Pins 1 & | Pins 1  | Pins 1  | Pins 1  | Pins 1  |
   |         |    2     |   & 2   |   & 2   |   & 2   |   & 2   |
   |---------+----------+---------+---------+---------+---------|
   | RS-422  | Pins 2 & | Pins 2  | Pins 2  | Pins 2  | Pins 2  |
   |         |    3     |   & 3   |   & 3   |   & 3   |   & 3   |
   |------------------------------------------------------------|
   |      Note:Pins designated are in the closed position.      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |Setting |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
   |--------+------+------+------+------+-----+-----+-----+-----|
   | |0000h |  On  |  On  |  On  |  On  | On  | On  | On  | On  |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |0020h | Off  |  On  |  On  |  On  | On  | On  | On  | On  |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |0040h |  On  | Off  |  On  |  On  | On  | On  | On  | On  |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |0060h | Off  | Off  |  On  |  On  | On  | On  | On  | On  |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |0080h |  On  |  On  | Off  |  On  | On  | On  | On  | On  |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   |>>|0280h |  On  |  On  | Off  |  On  | Off | On  | On  | On  |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |1F60h | Off  | Off  |  On  | Off  | Off | Off | Off | Off |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |1F80h |  On  |  On  | Off  | Off  | Off | Off | Off | Off |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |1FA0h | Off  |  On  | Off  | Off  | Off | Off | Off | Off |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |1FC0h |  On  | Off  | Off  | Off  | Off | Off | Off | Off |
   |-+------+------+------+------+------+-----+-----+-----+-----|
   | |1FE0h | Off  | Off  | Off  | Off  | Off | Off | Off | Off |
   |------------------------------------------------------------|
   |     Note: A total of 512 base address settings are         |
   |     available. The switches are a binary representation of |
   |     the decimal memory addresses. SW1/8 is the Most        |
   |     Significant Bit and switch SW1/1 is the Least          |
   |     Significant Bit. The switches have the following       |
   |     decimal values: SW1/8=4096, SW1/7=2048, SW1/6=1024,    |
   |     SW1/5=512, SW1/4=256, SW1/3=128, SW1/2=64, SW1/1=32.   |
   |     Turn off the switches and add the values of the        |
   |     switches that are off to obtain the correct memory     |
   |     address. (Off=1, On=0)                                 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |Setting|   JP1    |SW2/2|SW2/3|SW2/4|SW2/5|SW2/6|SW2/7|SW2/8|
   |-------+----------+-----+-----+-----+-----+-----+-----+-----|
   |   2   |Pins 1 & 2| On  | Off | Off | Off | Off | Off | Off |
   |-------+----------+-----+-----+-----+-----+-----+-----+-----|
   |   3   |Pins 1 & 2| Off | On  | Off | Off | Off | Off | Off |
   |-------+----------+-----+-----+-----+-----+-----+-----+-----|
   |   4   |Pins 1 & 2| Off | Off | On  | Off | Off | Off | Off |
   |-------+----------+-----+-----+-----+-----+-----+-----+-----|
   |   5   |Pins 1 & 2| Off | Off | Off | On  | Off | Off | Off |
   |-------+----------+-----+-----+-----+-----+-----+-----+-----|
   |   7   |Pins 1 & 2| Off | Off | Off | Off | On  | Off | Off |
   |-------+----------+-----+-----+-----+-----+-----+-----+-----|
   |  10   |Pins 1 & 2| Off | Off | Off | Off | Off | On  | Off |
   |-------+----------+-----+-----+-----+-----+-----+-----+-----|
   |  11   |Pins 1 & 2| Off | Off | Off | Off | Off | Off | On  |
   |-------+----------+-----+-----+-----+-----+-----+-----+-----|
   |  12   |Pins 2 & 3| Off | Off | Off | Off | Off | Off | Off |
   |------------------------------------------------------------|
   |     Note:Pins designated are in the closed position.       |
   +------------------------------------------------------------+