TFM-560X User’s Guide
Rev.1.00
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10. This finishes the hardware installation for external modem. If you have not encountered any problems,
you can go to Section 2.5 Install Communication Software. If you are having problems, see Section
3 Troubleshooting.
NOTE: The telephone wall jack you use must be for an ANALOG phone line (the type found in most homes).
Many offices are equipped with digital phone lines. Please be sure you know which type of line you
have.
The modem will be damaged if you use a digital phone line.
Indicator Lights
Your external modem features LED indicators on the front panel that report modem status :
MR Modem Ready Lights when the modem is turned on.
TR Terminal Ready Lights when the computer is ready to send or receive data. Indicates the status of the
DTR signal from the terminal or computer.
SD Transmit Data Flashes whenever data or commands are transmitted from the serial port of your
computer or other device to the modem.
RD Receive Data Light flashes when data is sent from the modem to your computer or other serial device.
At high speeds light may appear continuously on.
OH Off Hook Lights when the modem is off hook.
CD Carrier Detect Lights when the Data Carrier Detect (DCD) signal from the modem to the computer is on.
RS Request to Send Lights when the computer can accept data from the modem. The light will turn off
when the modem is set for hardware flow control and the computer is not ready, preventing data flow
from the modem
CS Clear to Send Lights when the modem can accept data from the computer.
The light will turn off when the modem is set for hardware flow control and the modem data buffer is full,
pre-venting data flow from the computer.
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