CONNECTIONS
Purpose	Location	Purpose	Location
Line out	CN1	DC power	CN4
Line in	CN2	Volume	R1
RS-232/422	CN3	Power switch	SW2

MI/MIC POLARITY
Setting	J6	J8
» Normal	Pins 1 & 2 closed	Pins 1 & 2 closed
Reversed	Pins 2 & 3 closed	Pins 2 & 3 closed

TX/RX PIN ASSIGNMENT
Setting	SW3
» Off	Normal operation
On	reverse TX/RX pin assignments

DTR SIGNAL
Setting	SW1/1
» On	DTR forced high
Off	DTR normal

RESULT CODES
Setting	SW1/2
» Off	Verbose result codes enabled
On	Numeric result codes enabled

RESULT CODES DISPLAY
Setting	SW1/3
» On	Display enabled
Off	Display disabled

ECHO COMMANDS DISPLAY
Setting	SW1/4
» Off	Local echo enabled
On	Local echo disabled

AUTO ANSWER
Setting	SW1/5
» On	Modem does not answer on first ring
Off	Modem answers on first ring

CARRIER DETECT
Setting	SW1/6
» Off	CD normal
On	CD forced high

RESULT CODES DISPLAY
Setting	SW1/7
» Off	Display result codes in originate and answer modes
On	display result codes in Answer mode

AT COMMAND SET
Setting	SW1/8
» On	AT command set enabled
Off	AT command set disabled

ESCAPE CODE
Setting	SW1/9
» Off	Disconnect, go to command mode and display NO CARRIER when escape character is received
On	Go to command mode and display OK result code when escape character is received

USER PROFILE
Setting	SW1/10
» Off	Use stored profile
On	Use factory default

VOICE/DATA
Setting	SW4
Note: for switch functions see table for register S32.

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
HS	Red	On	Modem is operating at 4800bps or faster
HS	Red	Off	Modem is operating at slower than 4800bps
AA	Red	On	Auto-answer enabled
AA	Red	Off	Auto-answer disabled
CD	Red	On	Carrier signal detected
CD	Red	Off	Carrier signal not detected
OH	Red	On	Modem is off-hook
OH	Red	Off	Modem is on-hook
RX	Red	Blinking	Modem is receiving data
RX	Red	Off	Modem is not receiving data
TX	Red	Blinking	Modem is transmitting data
TX	Red	Off	Modem is not transmitting data
TR	Red	On	DTR signal is high
TR	Red	Off	DTR signal is low
MR	Red	On	Power is on
MR	Red	Off	Power is off
MR	Red	Blinking	Retraining/test mode
RS	Red	On	RTS signal is high
RS	Red	Off	RTS signal is low
CS	Red	On	CTS signal is high
CS	Red	Off	CTS signal is low
EC	Red	On	Error control enabled
EC	Red	Off	Error control disabled
EC	Red	Blinking	Modem is retransmitting data
SYN	Red	On	Synchronous mode
SYN	Red	Off	Asynchronous mode