FOCUS 200 PLUS Installation and Setup Guide7-2The FOCUS 200 PLUS system will attempt, up to a programmed number of times, to transmit a signalto the CCC using the built-in dialer. If, after the programmed number of attempts, the signal still hasnot been properly accepted by the CCC, and the backup dialer is not enabled, a Comm Fail messagewill be displayed on the operating panel. If the backup dialer is enabled, then, after additionalunsuccessful attempts using the backup dialer, for a programmed number of times, the system willdisplay the Comm Fail message.If the system detects low voltage on the main telephone lines, it will switch to the backup dialer, ifenabled.• The number of dialing attempts is a programmable option. The system is shipped with 10 attempts asthe default.• The system will switch to the backup dialer only when it detects a fault (low voltage) on the maintelephone line or when the maximum number of programmed attempts on the main telephone line isreached.• For information about how to program the CCC telco numbers, see theProgramming section.UL The number of dialing attempts must be programmed for a minimum of 5 and a maximum of 10 attemptsfor Commercial fire and UL Burglary alarm systems.Main Telephone Line SupervisionThe supervision circuit on the main dialer will indicate a fault when the tip/ring voltage falls belowapproximately 4 volts.Backup Telephone Line SupervisionThe supervision circuit on the backup dialer will indicate a fault when the tip/ring voltage falls below25 volts (13 if blue jumper is cut) or when the handset current is less than approximately 10mA.If the communicator is connected to a telephone line inside a PABX, be sure the PABX has a backuppower supply that can support the PABX for 24 hours (central station usage) or 60 hours (remote stationusage). Many PABXs arenot power-backed up, and connection to such a PABX will result in acommunication failure if power is lost.Service Telephone JackThe FOCUS 200 PLUS system includes a service telephone jack to provide the installer/serviceman aquick access to a telephone line. See the Summary of Connections diagram for the location of this jack.Connecting the Telephone Lines• DO NOT connect both dialers to the same telephone line.• DO NOT connect the dialers to telephone lines that provide ground start service.To connect the telephone lines to the main and backup dialer, if used, perform the following steps:Step Action1 Conduct an electrical test of the line to the CCC or receiving station in accordance withthe requirements for the type of communication method to be employed.Note: Any limitations or conditions that will affect satisfactory operation must beimmediately brought to the attention of the local telephone company for correction. Anydifferences in operation that will affect programmable option selections must be broughtto the attention of the CCC data group for correction before the customized database isdownline-loaded.
