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CD
High Speed.
Lights when the modem is in high
speed (
1200 baud)
communications.
@
Off-Hook.
Lights
when your
modem is
on-line (connected to
the phone lines).
@
Terminal Ready.
Lights
when
the terminal is
supplying
DTR.
©
Carrier Detect.
Lights
when
the modem receives
a
carrier tone
or generates a
false carrier.
®
Transmit Data.
Lights when the modem is transmitting data
.
®
Receive Data.
Lights when the modem is receiving data
.
Your DC-2212 modem permits
a
computer
or
terminal to
communicate
with
a
remote
computer
by
converting
that
computer'
s electrical signals
into
audio
tones that
can
be
efficiently
handled by the telephone
system.
Likewise, the audio tones that the modem receives
are converted
back to
electrical
signals
that are understood by the
computer.
Setting Communications Parameters
The DC-2212 modem provides data
communications in
full-
or
half-duplex mode
at
either 0-300
bits-per-second
(asynchronous) or
1200 bps
(synchronous or
asynchronous)
.
Transmission
speed
is
always selected
by the
originating
modem
.
Automatic originate mode
operation is
a
default
(preset) condition
upon first power-
up. When opened
for
programming with the
auto-baud-rate-detect code
(Wake
Up,
DC-2212!)
,
the modem
automatically synchronizes
the baud
rate, word
length,
parity,
and stop-bit
numbers
of your computer system
.
When programmed
for
automatic answer mode
operation
,
the modem
adapts
the
communications
protocol
of
the remote
computer system
upon receipt
of a
telephone-
line-ringing
signal.
This
auto-answer feature
makes
it
possible for data transmission to
occur between
a
remote terminal interfaced to
a
modem
and your computer -
without
intervention from the
operator.
Refer to
your computer owner's
manual
or applications software user's guide
if
you
require instructions
on setting communications parameters
.
5
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