Card Type	Serial
Processor	80386
Processor Speed	Unidentified
Chipset	Unidentified
Maximum Onboard Memory	1MB DRAM
I/O Options	Serial ports (8)
Data Bus	16-bit ISA
Card Size	Full height, three-quarters length

CONNECTIONS
Function	Label	Function	Label
Header to daughterboard P3B or P3C	P3A	Header to daughterboard P4B or P3C	P4A

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Parity error in board DRAM sends interrupt signal to computer processor	J1	Pins 2 & 3 closed
	Parity error in board DRAM sends interrupt signal to board processor	J1	Pins 1 & 2 closed
»	Shared RAM window size may be 16KB, 32KB, 64KB, or 1MB	J3	Pins 1 & 2 closed
	Shared RAM window size may be 16KB, 64KB, or 128KB	J3	Pins 2 & 3 closed

BASE I/O ADDRESS SELECTION
Setting		SW1/1	SW1/2	SW1/3	SW1/4
	13Ch	On	On	Off	On
	17Ch	Off	On	Off	On
	1BCh	On	Off	Off	On
	1FCh	Off	Off	Off	On
	23Ch	On	On	On	Off
	27Ch	Off	On	On	Off
	2BCh	On	Off	On	Off
	2FCh	Off	Off	On	Off
»	33Ch	On	On	Off	Off
	37Ch	Off	On	Off	Off
	3BCh	On	Off	Off	Off
	3FCh	Off	Off	Off	Off

INTERRUPT SELECTION
Setting	J6/A	J6/B	J6/C	J6/D	J6/E	J6/F	J6/G	J6/H
2/9	Open	Open	Open	Open	Open	Open	Open	Closed
3	Open	Open	Open	Open	Open	Open	Closed	Open
4	Open	Open	Open	Open	Open	Closed	Open	Open
5	Open	Open	Open	Open	Closed	Open	Open	Open
10	Open	Open	Open	Closed	Open	Open	Open	Open
11	Open	Open	Closed	Open	Open	Open	Open	Open
12	Open	Closed	Open	Open	Open	Open	Open	Open
15	Closed	Open	Open	Open	Open	Open	Open	Open

CONNECTIONS
Function	Label	Function	Label
Header to main board P3A	P3B	RS-232 serial ports via unidentified connector	J3
Header to main board P4A	P4B

SERIAL PORT CONFIGURATION
Setting	SW1/1	SW1/2	SW1/3
DTE	On	Off	Off
DCE	Off	On	On
Note:The settings for SW2/1-SW2/3 through SW4/1-SW4/3 are identical to those for SW1/1-SW1/3. Switches SW1/1-SW1/3 set the configuration for serial port 1, while SW2/1-SW2/3 sets the configuration for serial port 3, SW3/1-SW3/3 sets the configuration for serial port 5, and SW4/1-SW4/3 sets the configuration for serial port 7.

SERIAL PORT 2 CONFIGURATION
Setting	SW1/4	SW1/5	SW1/6
DTE	On	Off	Off
DCE	Off	On	On
Note:The settings for SW2/4-SW2/6 through SW4/4-SW4/6 are identical to those for SW1/4-SW1/6. Switches SW1/4-SW1/6 set the configuration for serial port 2, while SW2/4-SW2/6 sets the configuration for serial port 4, SW3/4-SW3/6 sets the configuration for serial port 6 and SW4/4-SW4/6 sets the configuration for serial port 8.

CONNECTIONS
Function	Label	Function	Label
Header to main board P3A	P3C	RS-422 or X.21 serial ports via unidentified connector	J3
Header to main board P4A	P4C

SERIAL PORT CONFIGURATION (ODD)
Setting	SW1/1	SW1/2	SW1/3	SW1/4	SW1/5
DTE	On	Off	Off	Off	Off
DCE	Off	On	On	On	On
Note:The settings for SW2/1-SW2/5 through SW4/1-SW4/5 are identical to those for SW1/1-SW1/5. Switches SW1/1-SW1/5 set the configuration for serial port 1, while SW2/1-SW2/5 sets the configuration for serial port 3, SW3/1-SW3/5 sets the configuration for serial port 5, and SW4/1-SW4/5 sets the configuration for serial port 7.

SERIAL PORT CONFIGURATION (EVEN)
Setting	SW1/6	SW1/7	SW1/8	SW1/9	SW1/10
DTE	On	Off	Off	Off	Off
DCE	Off	On	On	On	On
Note:The settings for SW2/6-SW2/10 through SW4/6-SW4/10 are identical to those for SW6/10-SW1/10. Switches SW1/6-SW1/10 sets the configuration for serial port 2, while SW2/6-SW2/10 sets the configuration for serial port 4, SW3/6-SW3/10 sets the configuration for serial port 6 and SW4/6-SW4/10 sets the configuration for serial port 8.

MISCELLANEOUS TECHNICAL NOTES

The method for selecting the serial port type (RS-422 or X.21) is unidentified.