Card Type	Serial interface converter
Chipset	Unidentified
I/O Options	Serial port
Maximum Data Rate	19.2Kbps
Data Bus	Proprietary

CONNECTIONS
Function	Label	Function	Label
RS-423 DTE serial data port	CN1	Ground	SC1
RS-422 DCE serial data port	CN2	Test mode switch	SW1

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Receive line connected with 100 ohm impedance	JP1	Pins 2 & 3 closed
	Receive line not connected with 100 ohm impedance	JP1	Pins 1 & 2 closed
»	Test switch enabled	JP2	Pins 1 & 2 closed
	Test switch disabled	JP2	Pins 2 & 3 closed

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Green	On	Power is on
PWR	Green	Off	Power is off
TD	Yellow	On	Modem is transmitting data
TD	Yellow	Off	Modem is not transmitting data
RX	Yellow	On	Modem is receiving data
RX	Yellow	Off	Modem is not receiving data
TST	Red	On	Modem is in test mode
TST	Red	Off	Modem is not in test mode

MISCELLANEOUS TECHNICAL NOTE

This card is intended for use in the CMN-16 rack-mount system. The bus is used only for supplying power for the card. All other card functions are accessed through the serial port.