User`s guide

User’s Guide 45
Section D : Technical Quick Reference
Section D includes information about:
• Front Panel Lights (External Modems Only)
• Typing Commands
• Basic Data Commands
• Extended Data Commands
• S-Registers
• Fax Commands
• The Serial Interface (Cable Information)
LED Indicators (Front Panel Lights)
AA Auto Answer Answer mode: ON when register S0 is set to
1 or higher (Auto Answer), and when
answering a call; OFF when modem
originates a call. Light flashes when there is
an incoming call.
MEM Message Memory ON indicates that auto answer is ON and the
modem will answer any call when the PC is
off.
OFF indicates that auto answer is OFF and
the modem will not answer any call when the
PC is off.
CD Carrier Detect ON if modem receives a valid data signal
(carrier) from a remote modem, indicating
that data transmission is possible. Always
ON if CD override is ON (&C0).
RD Receive Data Flashes when modem sends result codes or
passes received data bits from remote
modem.