Teletronics WINC2400C - Manual (Page 21)

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The DTR, DSR, RTS, and CTS indicators follow the AT configuration commands as issued to the
WINC 2400C. For example, if the device has been configured for S/W flow control then the RTS
and CTS indicators will be red.
Since the WINC 2400C alternatively transmits and receives when online, the TXD and RXD
indicators cycle between green and red at the configured data rate.
When the default reset button is pressed while powering ON the unit, the asynchronous port of the
WINC 2400C defaults to the factory preset configuration of 9600 bps, 8 bits per character, no parity,
1 start bit, 1 stop bit, hardware flow control, and auto answer. Similarly, the synchronous port
defaults to Powering ON the unit without depressing the default button resets to their previously
configured state. To ensure that the unit resets to the default conditions, first power down the unit
and then power it on while depressing the default button.
To the right of the serial line LEDs are two small rectangular LED indicators. The lower green
indicator lights when the power is on, while the upper red LED indicates the receive signal level.
Solid ON indicates sufficient signal strength, while solid OFF indicates either no received signal or a
signal too weak to sustain communications. A blinking signal indicates a marginal signal level.
If you experience difficulty in establishing connections between a local and remote WINC 2400C,
first reset both units to the factory default conditions and retry before calling for technical assistance.
Synchronous Interface
For the synchronous interface, only the LEDs representing the state of the transmit and receive data
across the interface are meaningful. These are represented are the two right-most LEDs in the lower
row designated as TxD and RxD, respectively. In addition the left-most LED indicates the state of
the air-link. A solid light indicates that the link is established and when dark it indicates that he link
is down. All other LEDs in that row should be ignored.
Panel L E D Function
Air-link Indicates that the air-link is established.
Data Carrier Detect (DCD) Not applicable.
Data Terminal Ready (DTR) Not applicable.
Data Set Ready (DSR) Not applicable.
Clear To Send (CTS) Not applicable.
Request To Send (RTS) Not applicable.
Receive Data (RxD) Synchronous data input to DTE from modem.
Transmit Data (TxD) Synchronous data input to modem from DTE.
Default Reset Button Reset device to factory defaults.