MD-12DC modem/telephone/ISDN Settings and Configuration

Card Type	Modem
Chip Set	Unidentified
I/O Options	9-pin serial port (RS-232), terminal blocks (3)
Data Modulation Protocol	ITU-T V.24/V.28
Wiring Type	Unshielded or shielded twisted pair
Maximum Data Rate	38.4Kbps
Data Bus	External

CONNECTIONS
Function	Label	Function	Label
DCE serial port (9 pole terminal block)	CN1	Network interface (4 pole terminal block)	CN3
DC power connector (2 pole terminal block)	CN2	9-pin serial port	CN4

CARRIER CONTROL
Setting	S1/1	S1/2	S1/3
í Carrier forced high	Off	On	Off
Carrier activated by RTS	Off	On	On
Carrier activated by DTR	On	Off	Off
Carrier activated by DTR & RTS	On	Off	On

CLEAR TO SEND CONTROL
Setting	S1/4	S1/5	S1/6
í CTS controlled by RTS	On	Off	Off
CTS forced high	Off	On	Off
CTS follows DCD	Off	Off	On

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Unidentified	On	Power is on
PWR	Unidentified	Off	Power is off
RD	Unidentified	On	Modem is receiving data
RD	Unidentified	Off	Modem is not receiving data
TD	Unidentified	On	Modem is transmitting data
TD	Unidentified	Off	Modem is not transmitting data
RTS	Unidentified	On	RTS signal is high
RTS	Unidentified	Off	RTS signal is low
DCD	Unidentified	On	Data carrier present
DCD	Unidentified	Off	Data carrier not present. Connection not established