What can cause a panel sending Contact ID to produce Data Errors in the receiver?
Verify the length of the data error. A panel sending contact ID will send 16 digits for the Contact ID signal. Common causes of the panel not sending the correct number of digits include the following: - Voice over IP with Low Sample Rate or Line Compression - Line card or Line Terminator Card on the receiver (D6600 only) - Panel problem (Corruption, Bad Dialer, etc) - Noise on the phone line
There is a checksum value in the Contact ID signal. An incorrect checksum will cause a data error. An invalid checksum value may be caused for the same potential reasons as a dropped DTMF digit (see list above).
Possible fixes for the problem include the following: - Reprogram the field panel - Swap panel - Use a dedicated, analog phone line - Swap the Line Card and Line Terminator Card in the receiver - Have a qualified telephone technician check the phone line on the site with the panel or at the receiver for problems.