DCL-624 IO card Settings and Configuration

Card Type	Serial controller
Chipset/Controller	8250 UART
I/O Options	Serial ports (2)
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1 - DB-9	CN1	Serial port 2 - DB-9	CN2

INPUT CLOCK CONFIGURATION
MHz		J1
»	1.8432MHz	pins 1 & 2, 3 & 6, 4 & 5
	3.6864MHz	pins 1 & 2, 4 & 5 closed
	9.216MHz	pins 2 & 3, 4 & 5 closed
	18.432MHz	pins 2 & 5 closed

PORT 1 INTERRUPT SELECT - J2
IRQ		Jumper A	Jumper B	Jumper C	Jumper D	Jumper E	Jumper F
»	IRQ4	open	open	closed	open	open	open
	IRQ2	closed	open	open	open	open	open
	IRQ3	open	closed	open	open	open	open
	IRQ5	open	open	open	closed	open	open
	IRQ6	open	open	open	open	closed	open
	IRQ7	open	open	open	open	open	closed

PORT 2 INTERRUPT SELECT - J3
IRQ		Jumper A	Jumper B	Jumper C	Jumper D	Jumper E	Jumper F
»	IRQ3	open	closed	open	open	open	open
	IRQ2	closed	open	open	open	open	open

INTERRUPT SELECT - J3
IRQ	Jumper A	Jumper B	Jumper C	Jumper D	Jumper E	Jumper F
IRQ4	open	open	closed	open	open	open
IRQ5	open	open	open	closed	open	open
IRQ6	open	open	open	open	closed	open
IRQ7	open	open	open	open	open	closed

POWER SUPPLY SELECT
Setting		J4	J5
»	Computer power supply	pins 2 & 3 closed	pins 2 & 3 closed
	Isolated power supply	pins 1 & 2 closed	pins 1 & 2 closed

PORT 1 I/O ADDRESS CONFIGURATION
Base Address		SW1	SW3
»	3F8h	1, 2, 3, 4, 5 & 6 on	6 on
	3220h	1, 2, 5, 6 & 8 on	1, 2, 4, 5 & 6 on
Note:The address range for the DCL-624 is from 0 to FFFFh. The switches are a binary representation of the addresses. When a switch is off, the corresponding bit is set to 1 and has the following decimal value: SW1/1=8, SW1/2=4, SW1/3=2, SW1/4=1, SW1/5=8, SW1/6=4, SW1/7=2, SW1/8=1, SW3/1=8, SW3/2=4, SW3/3=2, SW3/4=1, SW3/5=8. Port 1 requires 8 consecutive address locations.

PORT 2 I/O ADDRESS CONFIGURATION
Base Address		SW2	SW4
»	2F8h	1, 3, 4, 5, 6 & 8 on	6 on
	3220h	1, 2, 5, 6 & 8 on	1, 2, 4, 5 & 6 on
Note:The address range for the DCL-624 is from 0 to FFFFh. The switches are a binary representation of the addresses. When a switch is off, the corresponding bit is set to 1 and has the following decimal value: SW2/1=8, SW2/2=4, SW2/3=2, SW2/4=1, SW2/5=8, SW2/6=4, SW2/7=2, SW2/8=1, SW4/1=8, SW4/2=4, SW4/3=2, SW4/4=1, SW4/5=8. Port 2 requires 8 consecutive address locations.

PORT 1 ENABLE/DISABLE
Setting		SW3/6
»	Enabled	on
	Disabled	off

PORT 2 ENABLE/DISABLE
Setting		SW4/6
»	Enabled	on
	Disabled	off

PORT 1 TRANSMISSION OPTIONS - SW5
Setting		SW5/1	SW5/2	SW5/3	SW5/4	SW5/5	SW5/6	SW5/7	SW5/8
»	20mA Active Transmit	off	off	on	on	on	off	off	off
	30mA Active Transmit	off	off	on	on	on	on	off	off
	60mA Active Transmit	off	off	on	on	on	on	on	off
	Passive Transmit	on	on	off	off	off	off	off	off

PORT 2 TRANSMISSION OPTIONS - SW6
Setting		SW6/1	SW6/2	SW6/3	SW6/4	SW6/5	SW6/6	SW6/7	SW6/8
»	20mA Active Transmit	off	off	on	on	on	off	off	off
	30mA Active Transmit	off	off	on	on	on	on	off	off
	60mA Active Transmit	off	off	on	on	on	on	on	off
	Passive Transmit	on	on	off	off	off	off	off	off

PORT 1 RECEIVE CIRCUIT CURRENT OPTIONS - SW7
Setting		SW7/1	SW7/2	SW7/3
»	20mA	on	off	off
	30mA	off	on	off
	60mA	off	off	on

PORT 2 RECEIVE CIRCUIT CURRENT OPTIONS - SW7
Setting		SW7/4	SW7/5	SW7/6
»	20mA	on	off	off
	30mA	off	on	off
	60mA	off	off	on

PORT 1 RECEIVE OPTIONS - SW8
Setting		SW8/1	SW8/2	SW8/3	SW8/4	SW8/5	SW8/6	SW8/7	SW8/8
»	Passive Receive	on	on	off	off	off	off	off	off
	20mA Active Receive	off	off	on	on	on	off	off	off
	30mA Active Receive	off	off	on	on	on	on	off	off
	60mA Active Receive	off	off	on	on	on	on	on	off

PORT 2 RECEIVE OPTIONS - SW9
Setting		SW9/1	SW9/2	SW9/3	SW9/4	SW9/5	SW9/6	SW9/7	SW9/8
»	Passive Receive	on	on	off	off	off	off	off	off
	20mA Active Receive	off	off	on	on	on	off	off	off
	30mA Active Receive	off	off	on	on	on	on	off	off
	60mA Active Receive	off	off	on	on	on	on	on	off