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

DIAGNOSTIC LED(S)
LED	Status	Condition
AA	On	Auto-answer enabled
AA	Off	Auto-answer disabled
RXD	On	Modem is receiving data
RXD	Off	Modem is not receiving data
TXD	On	Modem is transmitting data
TXD	Off	Modem is not transmitting data
CD	On	Carrier signal detected
CD	Off	Carrier signal not detected
OH	On	Modem is off-hook
OH	Off	Modem is on-hook
HS	On	Modem is operating at 2400bps
HS	Off	Modem is operating at slower than 2400bps
DTR	On	DTR signal is high
DTR	Off	DTR signal is low
MR	On	Power is on
MR	Off	Power is off

MODE
Settings	SW1/1
Dumb mode	On
Normal mode	Off

AUTO-ANSWER
Settings	SW1/2
Auto-answer enabled	On
Auto-answer disabled	Off

DCD
Settings	SW1/3
DCD normal	On
DCD forced high	Off

DTR
Settings	SW1/4
Reset ON DTR	On
DTR ON to OFF	Off

MISCELLANEOUS TECHNICAL NOTE

Exact location of switches and LEDs is unidentified.