CONNECTIONS
Purpose	Location	Purpose	Location
Line in	CN1	Transmit	CN4
RS-232/422	CN2	Ground	CN5
DC power	CN3	Receive	CN6

DATA, PARITY, STOP BITS
Setting	SW1/D	SW1/E	SW1/F
7 bits, even, 1 stop bit	On	On	On
7 bits, odd, 1 stop bit	On	On	Off
7 bits, null, 2 stop bit	On	Off	On
7 bits, even, 2 stop bits	On	Off	Off
7 bits, odd, 2 stop bits	On	On	On
8 bits, even, 1 stop bit	Off	On	Off
8 bits, odd, 1 stop bit	Off	Off	On
8 bits, null, 1 stop bit	Off	Off	Off

FLOW CONTROL
Setting	SW1/H
Hardware	Off
Software	On

SPEED
Setting	SW1/A	SW1/B	SW1/C
1200bps	On	Off	Off
2400bps	On	Off	On
4800bps	Off	On	On
9600bps	On	On	Off
19.2kbps	On	On	On
38.4kbps	Off	Off	Off
57.6kbps	Off	Off	On

STATUS LED CODES
Status	Code
DCE is sending data	**—*
Power on, initialization complete	*
Parallel connection is good	**
Printer not ready, data in buffer	*—*
Data lost	****
Note: * indicates LED on. — indicates LED off. Each pattern is repeated after a pause.

FACTORY CONFIGURED SETTINGS
Switch	Setting
SW1/G	N/A

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Green	On	Power is on
PWR	Red	Off	Power is off
TD	Red	On	Modem is not transmitting data
TD	Red	Off	Modem connection is broken
TD	Red/Green	Blinking	Modem is transmitting data
RD	Red	On	Modem is not receiving data
RD	Red	Off	Modem connection is broken
RD	Red/Green	Blinking	Modem is receiving data
CONTROL IN	Red	On	Control signal is low
CONTROL IN	Green	Off	Control signal is high
CONTROL OUT	Red	On	Control signal is low
CONTROL OUT	Green	Off	Control signal is high
STATUS	Green	Blinking	See Status table