The D9068 Fire Communicator is a complete digital alarm communicator transmitter (DACT) for use with compatible fire alarm control panels (FACPs). Use dry contacts or open collector outputs for alarms and communications with the D9068.
Functions | Five Input Points
The DACT supports five inputs that can be activated by dry contact relays or open collector outputs. Each of these inputs can be configured for one of seven types of conditions: Fire Alarm, Waterflow Alarm, Supervisory, Monitor Alarm, System Fault, AC Failure and Low Battery.
The DACT is supervised with a hardware watchdog circuit. Failure of the control program results in a hardware reset within two seconds. The on-board trouble relay releases for the duration of the reset (the relay is normally held energized).
The DACT's EEPROM memory, input points, and phone lines are automatically tested periodically. The EEPROM checksum is verified every 10 minutes. If the EEPROM checksum fails, a trouble condition is locally annunciated and a trouble report sent.
Serial Data Input Dialing
The DACT connects through the D9052 Serial Module to the D10024, D10024A, D9024, and D8024 analog FACPs, and transmits by point in all available formats.
An FMR-DACT-KEYPAD LCD Keypad connects to a five-pin connector (option bus interface) and is used to program and troubleshoot the D9068. A D7033 Liquid Crystal Display (LCD) Remote Keypad can also be used.
The DACT supports five reporting formats: Modem IIIa, Contact ID, SIA110, SIA300, and 4/2.
There are six different report groups that can be routed to one of four phone settings. These report groups consist of non-supervisory alarms, supervisory alarms, alarm restorals, resets, supervisory restorals, tests and troubles, and trouble restorals.
A reset report is sent when the D9068 resets from any off-normal condition.
Phone Line Selection
The DACT follows a pre-determined sequence to select between the phone lines. It also implements the new NFPA requirements for alternation of phone lines during test reporting. The DACT maintains a variable that selects either Phone Line 1 or Phone Line 2 for automatic test reports. After each successful test report, the variable switches to select the other phone line.
Communication Failed Indication
The DACT indicates a communication failure after ten attempts to communicate are completed without success. This causes the trouble output to activate and report the fault.