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Call progress, Ring output, Modem cd – Barnett Engineering PRO TALK CV2 User Manual

Page 38: Enable modem code, Rings before answer, Configuration programming

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Configuration using the PC

4-17

B1272M001

BARNETT ENGINEERING LTD.

ProTalk Cv2

Ring Output

Ring output is used to select one of the eight outputs to externally indicate that there is an
incoming call. The output will follow the ringing cadence if selected.

Default Ring Output: None

Modem CD

Modem Carrier Detect is used to select one of the eight outputs to externally indicate that
the modem has connected to an incoming call. This function is activated by the Modem
Enable Code and is only asserted during the connection and not for the timer interval

Default Modem CD: None

Enable Modem Code

This code is required to allow the Cv2 to receive incoming over-the-air modem calls.
Normally the Cv2 is in voice mode; following receipt of the Enable Modem code it will
wait for a modem call for the time period set for the Modem CD in Hardware outputs.
When this timer period has passed without a connection, the Cv2 returns to voice mode. If
a connection is made, the Cv2 waits 30 seconds after the end of the modem session before
returning to voice.

Default Enable Modem Code: empty string

Rings before Answer

Rings before answer determines how may ring cycles the Cv2 will wait before answering
the call.

Default Rings before Answer: Two

4.7.6 Configuration Programming

Three types of data can be transferred between the Cv2 and the programming PC.
Programming can be done locally with the programming cable or remotely using the modem
in the PC to call the Cv2 over-the-air. If remote programming is to be used, the Cv2 must be
configured for a Enable Modem code and a Modem CD output enabled in the General section.
The selected output is configured in Hardware for the time interval that the Cv2 will wait for a
modem connection.

The programming dialog defaults to local operation when it opens. Press the Use Modem
button for remote programming.

For local programming the programming cable must be connected between the PC and the
Cv2 before any data transfer is initiated. Select the correct COM port for the attached cable in
the Serial Port box.

While the serial cable is attached, the Cv2 will be in programming mode and will not be
operational.

For remote programming, press the Dial button to bring up the telephone number entry dialog.
Enter the telephone number for the Cv2 including the prefix 1 and area code if necessary.
Press Disconnect when the modem session is finished

Data is transferred in four-kilobyte packets at 9600 baud. The configuration database will
take two packets to transfer; the number of packets in a voice data transfer will vary
depending on how many points are used and how long the messages are.