US Robotics SportsterVoice User Manual page 37

Front Panel Lights (external modems only)
Symbol Meaning
AA Auto Answer/
Answer
Light flashes when
CD Carrier Detect
remote
possible. Always ON
RD Received Data
data bits.
SD Send Data
TR Data Terminal
ignores DTR) if
CS Clear to Send
flow control
ARQ/ Error Control/
FAX Fax Operations
establishes an
modem retransmits data to
OH Off Hook
modem is
34
Status
Answer mode: ON when
register S0 is set to 1 or higher
answering a call; OFF when modem
there is an incoming call.
ON if modem receives a valid data
modem, indicating that data
if CD override is ON (&C0).
Flashes when modem sends result
Flashes when computer sends a
ON if modem receives a DTR
Ready signal from computer.
the DTR override is ON (&D0).
ON until modem lowers CTS when
is enabled (&H1, &H3).
Data Mode: Automatic Repeat
ON if modem is set to &M4 or &M5
error control connection. Flashes
remote modem. Fax Mode: Flashes
ON when modem accesses the
On Hook.
(Auto Answer), and when
originates a call.
signal (carrier) from a
transmission is
codes or passes received
data bit.
Always ON (modem
Transmit Data hardware
Request.
and successfully
when
to indicate fax mode.
phone line. OFF when