CONNECTIONS
Purpose	Location	Purpose	Location
Line out	CN1	DC power	CN3
Line in	CN2	RS-232/422	CN4

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
HS	Red	On	Modem is in 9600bps or faster mode.
HS	Red	Off	Modem is in slower than 9600bps mode.
HS	Red	Blinking	Modem is retraining speed.
AA	Red	On	Auto-answer enabled
AA	Red	Off	Auto-answer disabled
AA	Red	Blinking	Line is ringing
CD	Red	On	Carrier signal has been detected.
CD	Red	Off	Carrier signal has not been detected.
OH	Red	On	Modem is off-hook
OH	Red	Off	Modem is on-hook
DTR	Red	On	DTR signal is high
DTR	Red	Off	DTR signal is low
DSR	Red	On	DSR signal is high
DSR	Red	Off	DSR signal is low
CTS	Red	On	CTS signal is high
CTS	Red	Off	CTS signal is low
TXD	Red	On	Modem is transmitting data
TXD	Red	Off	Modem is not transmitting data
RXD	Red	On	Modem is receiving data
RXD	Red	Off	Modem is not receiving data
EC	Red	On	Modem is in error-correcting mode.
EC	Red	Off	Modem is not in error-correcting mode.
SQ	Red	On	Signal quality is good.
SQ	Red	Off	Signal quality is poor; at power-up, indicates an error.
TST	Red	On	Modem is in test mode.
TST	Red	Off	Modem is not in test mode.