TEXT View Source
# SEALEVEL SYSTEMS, INC.
ULTRA-485
Card Type Serial card
Chip Set Unidentified
Maximum Onboard Memory Unidentified
I/O Options Serial port
Hard Drives supported None
Floppy drives supported None
Data Bus 8-bit ISA
Card Size Full-length, full-height
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label |
|-------------------------------+----------------------------|
| Serial Port | P3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION PORT 1 |
|------------------------------------------------------------|
| Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
|----------------+----------+----------+----------+----------|
| | Disabled | On | On | On | On |
|---+------------+----------+----------+----------+----------|
| | 238h | Off | On | On | Off |
|---+------------+----------+----------+----------+----------|
| | 280h | Off | Off | On | On |
|---+------------+----------+----------+----------+----------|
| | 288h | Off | Off | On | Off |
|---+------------+----------+----------+----------+----------|
| | 290h | Off | Off | Off | On |
|---+------------+----------+----------+----------+----------|
| | 298h | Off | Off | Off | Off |
|---+------------+----------+----------+----------+----------|
| | 2E8h | On | Off | On | On |
|---+------------+----------+----------+----------+----------|
| | 2F8h | On | On | Off | On |
|---+------------+----------+----------+----------+----------|
| | 300h | Off | On | Off | On |
|---+------------+----------+----------+----------+----------|
| | 308h | Off | On | Off | Off |
|---+------------+----------+----------+----------+----------|
| | 3E8h | On | On | Off | Off |
|---+------------+----------+----------+----------+----------|
| » | 3F8h | On | On | On | Off |
|---+------------+----------+----------+----------+----------|
| | 3220h | On | Off | On | Off |
|---+------------+----------+----------+----------+----------|
| | 3228h | On | Off | Off | On |
|---+------------+----------+----------+----------+----------|
| | 4220h | On | Off | Off | Off |
|---+------------+----------+----------+----------+----------|
| | 4228h | Off | On | On | On |
+------------------------------------------------------------+
+-------------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECTION |
|-------------------------------------------------------------------|
|IRQ | E1/A | E1/B | E1/C | E1/D | E1/E | E1/F | E1/G | E1/H | E1/I |
|----+------+------+------+------+------+------+------+------+------|
| |2 |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
|-+--+------+------+------+------+------+------+------+------+------|
| |3 | Open |Closed| Open | Open | Open | Open | Open | Open | Open |
|-+--+------+------+------+------+------+------+------+------+------|
|»|4 | Open | Open |Closed| Open | Open | Open | Open | Open | Open |
|-+--+------+------+------+------+------+------+------+------+------|
| |5 | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
|-+--+------+------+------+------+------+------+------+------+------|
| |7 | Open | Open | Open | Open |Closed| Open | Open | Open | Open |
|-+--+------+------+------+------+------+------+------+------+------|
| |10| Open | Open | Open | Open | Open |Closed| Open | Open | Open |
|-+--+------+------+------+------+------+------+------+------+------|
| |11| Open | Open | Open | Open | Open | Open |Closed| Open | Open |
|-+--+------+------+------+------+------+------+------+------+------|
| |12| Open | Open | Open | Open | Open | Open | Open |Closed| Open |
|-+--+------+------+------+------+------+------+------+------+------|
| |15| Open | Open | Open | Open | Open | Open | Open | Open |Closed|
+-------------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL INTERRUPT MODE SELECTION |
|------------------------------------------------------------|
| IRQ | E2 |
|-------------------------------------+----------------------|
| » | Normal | Pins 1 & 2 closed |
|------+------------------------------+----------------------|
| | Shared Interrupt mode | Pins 2 & 3 closed |
|------+------------------------------+----------------------|
| | None (1K ohm pull-down | Pins 3 & 4 closed |
| | resistor) | |
|------------------------------------------------------------|
| Note: When using two adapters and having them share an |
| IRQ, one must be set in the shared mode and one must be |
| set to include the 1K ohm pull-down resistor. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT RECEIVE MODE SELECTION |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | RS-485 driver automatically | E3 | Pins 1 & 2 |
| | enabled/disabled for receiver | | closed |
| | circuit | | |
|---+-----------------------------------+-------+------------|
| | Request to send receiver circuit | E3 | Pins 3 & 4 |
| | enabled (RS-485) | | closed |
|---+-----------------------------------+-------+------------|
| | RS-422 enabled for receiver | E3 | Pins 5 & 6 |
| | circuit | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT TRANSMITT MODE SELECTION |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | RS-485 driver automatically | E5 | Pins 1 & 2 |
| | enabled/disabled for transmitter | | closed |
| | circuit | | |
|---+-----------------------------------+-------+------------|
| | Request to send transmitter | E5 | Pins 3 & 4 |
| | enabled (RS-485) | | closed |
|---+-----------------------------------+-------+------------|
| | RS-422 enabled for transmitter | E5 | Pins 5 & 6 |
| | circuit | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTOR PIN ASSIGNMENTS |
|------------------------------------------------------------|
| MODE | E4 |
|-----------------------------+------------------------------|
| EIA-530 | Pins 1-10 closed |
|-----------------------------+------------------------------|
| SIO-485 | Pins 11-20 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE TERMINATION |
|------------------------------------------------------------|
| Mode | Label | Position |
|-----------------------------------------+-------+----------|
| 120 ohm termination enabled | SW2/1 | On |
|-----------------------------------------+-------+----------|
| 120 ohm termination disabled | SW2/1 | Off |
|-----------------------------------------+-------+----------|
| 1K ohm pull-down resistor enabled | SW2/2 | On |
|-----------------------------------------+-------+----------|
| 1K ohm pull-down resistor disabled | SW2/2 | Off |
|-----------------------------------------+-------+----------|
| 1K ohm pull-up resistor enabled | SW2/3 | On |
|-----------------------------------------+-------+----------|
| 1K ohm pull-up resistor disabled | SW2/3 | Off |
|-----------------------------------------+-------+----------|
| Connect TX+ to RX+ for 2 wire operation | SW2/4 | On |
| (RS-485) | | |
|-----------------------------------------+-------+----------|
| Connect TX- to RX- for 2 wire operation | SW2/5 | On |
| (RS-485) | | |
+------------------------------------------------------------+