DS-2000/3000 IO card Settings and Configuration

Card Type	Serial controller
Chipset/Controller	16550
I/O Options	Serial ports (2)
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	CN1	Serial port 2	CN2

DTR CONFIGURATION
Setting		J4
»	- DTR	Pins 2 & 3, 5 & 6 closed
	+ DTR	Pins 1 & 2, 4 & 5 closed

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

TRANSMIT/RECEIVE CONFIGURATION
Function	J2
RTS/CTS loopback	Pins 1 & 5 closed, pins 1 & 2 open
Transmit RTS	Pins 5 & 6 closed, pins 6 & 7 open
Receive RTS	Pins 1 & 2 closed, pins 2 & 3 open
RCLK/XCLK loopback	Pins 3 & 7 closed, pins 2 & 3 open
Transmit XCLK	Pins 6 & 7 closed, pins 5 & 6 open
Receive RCLK	Pins 2 & 3 closed, pins 1 & 2 open
AUX OUT/AUX IN loopback	Pins 2 & 6 closed, pins 5 & 6, 6 & 7 open
Half Duplex	Pins 4 & 8 closed
Full Duplex	Pins 4 & 8 open