Multi-Tech Systems MT5634MSV manual Indicator Lights

3 MessageSaver Operation

Indicator Lights

The MessageSaver has ten LED indicators on the front panel that indicate status, configuration, and activity:

TD Transmit Data. The TD indicator flashes when the modem is transmitting data to another modem.

RD 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).

CD 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.

5656K 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.

33V.34 Mode (33,600–16,800 bps). The 33 indicator lights whenever the modem connects using the V.34 protocol.

14V.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.

OH 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.

TR 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.

EC 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.

FX 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.

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.

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