Zoom 2812 Owner's Manual page 11

Summary of the Indicator Lights
(external modems only)
Light
OH (Off Hook)
AA (Auto-Answer)
RD (Receive Data)
TD (Transmit Data)
TR (Terminal Ready)
CD (Carrier Detect)
CS (Clear to Send)
EC (Error Correction)
DC (Data Compression)
V.34
K56
FAX
MSG
MR (Modem Ready)
Chapter 2 Using the Faxmodem
Description
Lights when the faxmodem is off hook.
Blinks on or off when detecting incoming
ring.
Light flashes when data is sent from the
faxmodem to your computer or other serial
device. At high speeds light may appear on.
Flashes whenever data or commands are
transmitted from the serial port of your
computer or other device to the faxmodem.
Lights when the computer is ready to send
or receive data. Indicates the status of the
DTR signal from the terminal or computer.
This light does not work on a Mac,
NOTE:
because the Mac uses its control line for
hardware flow control.
Lights when the Data Carrier Detect (DCD)
signal from the faxmodem to the computer
is on.
Lights when the faxmodem can accept data
from the computer. The light will turn off
when the faxmodem is set for flow control
(AT command &K3) and the faxmodem's
data buffer is full, preventing data flow from
the computer.
Lights when sending data using V.42 or
MNP 4 error correction.
Lights when using V.42bis or MNP 5 data
compression.
Lights when operating in V.34 mode.
Lights when communicating in K56Flex™
mode.
Lights when fax connection has been made
to a remote faxmodem.
Used by some software products. Lights
when faxes are waiting.
Lights when the faxmodem is turned on.
Flashes when the faxmodem is in self-test
mode.
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