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 twisted pair
Maximum Data Rate	38.4Kbps
Data Bus	External

CONNECTIONS
Function	Label	Function	Label
9-pin DCE serial port - channel 1	CN1	DCE serial port - channel 4	CN4
DCE serial port - channel 2 (5 pole terminal block)	CN2	DC power (2 pole terminal block)	CN5
DCE serial port - channel 3	CN3
Note: CN3 & CN4 are separate serial interfaces on a 9 pole terminal block

USER CONFIGURABLE SETTINGS
Function	Label	Position
10mA balance current loop enabled on channel 2	J1	Pins 2 & 3 closed
RS-232-C/V.24 interface enabled on channel 2	J1	Pins 1 & 2 closed
10mA balance current loop enabled on channel 3	J2	Pins 2 & 3 closed
RS-232-C/V.24 interface enabled on channel 3	J2	Pins 1 & 2 closed
í Factory configured - do not alter	S1/3	Off
í Factory configured - do not alter	S1/4	Off

MASTER/SLAVE CONFIGURATION
Setting	S1/1	S1/2
í Communication between all units enabled	On	On
Communication between masters and slaves enabled	Off	Off

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
DCD2	Unidentified	On	Data carrier present on channel 2
DCD2	Unidentified	Off	Data carrier not present. Connection not established on channel 2
DCD3	Unidentified	On	Data carrier present on channel 3
DCD3	Unidentified	Off	Data carrier not present. Connection not established on channel 3
DCD4	Unidentified	On	Data carrier present on channel 4
DCD4	Unidentified	Off	Data carrier not present. Connection not established on channel 4