CONNECTIONS
Purpose	Location	Purpose	Location
Line out	CN1	Speaker	CN5
Line in	CN2	Microphone	CN6
RS-232/422	CN3	Power switch	SW1
DC power	CN4

SYNCHRONOUS/ASYNCHRONOUS OPERATION
Setting	SW2/2	SW2/3
Asynchronous operation	On	Off
Synchronous with internal clock	On	Off
Synchronous with external clock	Off	On
Synchronous with slave clock	Off	Off

DSR/DTR FORCED HIGH
Setting	SW2/4
» Normal operation	On
DSR/DTR forced high	Off

COMMAND SET
Setting	SW2/6
V.25bis command set	Off
AT command set	On

REMOTE CONFIGURATION
Setting	SW2/7
Enabled	Off
Disabled	On

CALLBACK SECURITY
Setting	SW2/8
Disabled	Off
Enabled	On

FACTORY CONFIGURED SETTINGS
Switch	Setting
Off	SW2/1
On	SW2/5

DIAGNOSTIC LED(S)
LED	Icon	Status	Condition
AA	AA	On	Auto-answer enabled
AA	AA	Off	Auto-answer disabled
AA	AA	Blinking	Phone is ringing
ST	Pyramid of balls	On	Self test mode
ST	Pyramid of balls	Off	Normal operation
ST	Pyramid of balls	Blinking	Self test failure
RX	Modem left arrow	On	Modem is receiving data
RX	Modem left arrow	Off	Modem is not receiving data
TX	Modem right arrow	On	Modem is transmitting data
TX	Modem right arrow	Off	Modem is not transmitting data
CD	Phone	On	Carrier signal detected
CD	Phone	Off	Carrier signal not detected
HS	Running figure	On	Modem is operating at 4800bps or faster
HS	Running figure	Off	Modem is operating at slower than 4800bps
OH	Crossed out phone	On	Modem is off-hook
OH	Crossed out phone	Off	Modem is on-hook
TR	Box	On	DTR signal is high
TR	Box	Off	DTR signal is low
MS	Box	On	Modem connected at more than 24Kbps
MS	Box	Off	Modem connected at less than 24Kbps
MR	Rectangle	On	Power is on
MR	Rectangle	Off	Power is off