CONNECTIONS
Purpose	Location	Purpose	Location
RETURN button	BT1	120VAC power	CN4
DOWN button	BT2	RS-232/422	CN5
ACROSS button	BT3	Network control out	CN6
ENTER button (Talk/Data)	BT4	Network control in	CN7
Switched line out	CN1	Power switch	SW1
Line in	CN2

ELECTRICAL INTERFACE SELECTION
Interface	SW2/1
» EIA/TIA 232-D	On
ITU-T V.35	Off

TEST/BUSY OUT ON PIN 25
Mode	SW2/2
» Enable busy out when pin 25 is high	Off
Self test is in progress when pin 25 is high	On

FRONT PANEL CONFIGURATION
Mode	SW2/3
» Front panel enabled	Off
Front panel disabled	On

RESET MEMORY
Mode	SW2/4
» Normal operation	Off
Reset modem to factory settings	On

COMMAND SETS
Mode	SW2/5
» Command sets enabled	Off
Command sets disabled	On

FACTORY CONFIGURED - DO NOT ALTER
Switch	Position
SW2/6	Off

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
RD	Red	On	Modem is receiving data
RD	Red	Off	Modem is not receiving data
TR	Red	On	DTR signal is high
TR	Red	Off	DTR signal is low
RI/OH	Red	On	Switched line is off-hook or is ringing
RI/OH	Red	Off	Switched line is on-hook and is not ringing
TD	Red	On	Modem is transmitting data
TD	Red	Off	Modem is not transmitting data
CD	Red	On	Carrier signal detected
CD	Red	Off	Carrier signal not detected
RC/NC	Red	On	Modem is under remote or network control
RC/NC	Red	Off	Modem is under local control