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Indicator Lights
The MessageSaver has ten LED indicators on the front panel that indicate status,
configuration, and activity:
TD
RD
CD
56
33
14
OH
TR
EC
FX
Note: When you turn on the modem, the speed indicators flash briefly as the mo-
dem does a self-test, then the 56 indicator lights. After a call, the indicator for the
connection's speed protocol remains lit until another call is made or the modem is
reset. If you connect at a rate under 14,400 bps, all speed indicators remain off after
the connection is broken, even though the modem is still turned on.
Transmit Data. The TD indicator flashes when the modem is transmitting data
to another modem.
Receive Data. The RD indicator flashes when the modem is receiving data
from another modem. It also flashes when the modem is in update mode (send-
ing faxes, messages, etc., to the computer).
Carrier Detect. The CD indicator lights when the modem detects a valid carrier
signal from another modem. It is on when the modem is communicating with
the other modem and off when the link is broken.
56K Mode (56,000–28,000 bps). The 56 indicator lights whenever the modem is
set for or connects using either the K56flex or the V.90 protocol. The actual con-
nection speed depends on server capabilities and line conditions.
V.34 Mode (33,600–16,800 bps). The 33 indicator lights whenever the modem
connects using the V.34 protocol.
V.32bis Mode (14,400 bps). The 14 indicator lights whenever the modem con-
nects using the V.32bis protocol.
Note: Although the modem can connect at lower than V.32bis speeds, no speed
indicator lights during the connection.
Off-Hook. The OH indicator lights when the modem is off-hook, which occurs
when the modem is dialing, online, or answering a call. The LED flashes when
the modem pulse-dials.
Terminal Ready. The TR indicator lights when a communication program is
using the modem. It means the modem is ready for an outgoing or incoming
call. It goes off when the communication program disconnects the serial port.
When it goes off, a connected modem will disconnect.
Error Correction (V.42). The EC indicator lights continuously when the modem
is in V.42 error correction mode, and flashes when compression is activated.
When the modem is offline, the EC indicator flashes to indicate that one or
more voice messages have been received.
Fax. The FX indicator lights when the modem is in fax mode. When the modem
is offline, the FX indicator flashes to indicate that one or more faxes have been
received.
3 MessageSaver Operation
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