
Programming for DACT-UD
Simultaneous Data Transfers
40
DACT-UD PN 51899:B1 1/25/05
Once an incoming call is accepted/answered by the control panel, the panel will
1. Establish basic modem connection
2. Verify secret code
3. Verify callback vs. no callback request from the Service Terminal. If callback is
requested then perform steps 4 through 10. If no callback is requested then
perform steps 9 and 10 only
4. Identify the Service Terminal location
5. Hang-up/disconnect call
6. Call the Central Station(s) and transmit a request for upload/download message
(if programmed to do so). If this message is accepted, the control panel will
proceed to the next step
7. Return call to Service Terminal
8. Verify secret code
9. Begin uploading
10. Upon completion of upload, call Central Station(s) back and report a successful
upload or failed upload/download status (if programmed to do so)
During the uploading process, the fire protection remains active. Should a system
trouble or alarm condition occur, the control panel immediately terminates uploading
and processes the trouble or alarm locally and transmits the information to the Central
Station(s).
3.5 Simultaneous Data Transfers
Uploading and downloading may take place on a single telephone call. Control and
selection of the data transaction is coordinated at the Service Terminal. This eliminates
multiple phone calls, allows instant verification of downloaded data files and simplifies
the overall process.