Simultaneous Data Transfers
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Document #50193 Rev.E 01/30/02 P/N 50193:E
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, the panel performs
steps 4 through 10; if no callback is requested, the panel performs only steps 9 and 10)
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/down-
load 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 trans-
mits the information to the Central Station(s).
6.5
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 download
data files and simplifies the overall process.
