Card Type	Modem (asynchronous)
Chip Set	U.S. Robotics
Maximum Data Rate	300bps
Data Bus	External
Data Modulation Protocol	Bell 103/113

CONNECTIONS
Function	Label		Function		Label
Line out/in - unidentified		CN1		DC power		CN4
Line in/out - unidentified		CN2		Power switch		SW1
RS-232/422		CN3		Analog loopback switch		SW2

RS232C
Setting	SW3/A	SW3/B	SW3/C	SW3/D
Pin 2 receive/Pin 3 send	On	On	Off	Off
Pin 2 send/Pin 3 receive	Off	Off	On	On

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
CD	Red	On	Carrier signal detected
CD	Red	Off	Carrier signal not detected
ON	Red	On	Power is on
ON	Red	Off	Power is off
AL	Red	On	Modem is in analog loopback test mode
AL	Red	Off	Modem is not in analog loopback test mode
SD	Red	On	Modem is transmitting data
SD	Red	Off	Modem is not transmitting data
RD	Red	On	Modem is receiving data
RD	Red	Off	Modem is not receiving data

MISCELLANEOUS TECHNICAL NOTES

Note: Diagram not available.