Fire-Lite 411UDAC Fire Alarm Communicator - Manual (Page 62)

62 411UDAC Manual — P/N 51073:E 9/20/2013
Remote Site Upload/Download Downloading to the Communicator
Callback to Service Terminal
Any time that the communicator is remotely requested to allow an upload or download with call-
back, it will confirm the source of the incoming call, hang-up and call the calling party (Service
Terminal phone number) back.
Error Checking
As each block of data is received by the communicator, it is checked for accuracy. If an error is
detected, the block is retransmitted until correct, up to a maximum of four times. If the Secret Code
is not verified and four errors occur, the call is disconnected and the report that the upload/down-
load was not successful is called to the Central Station(s).
Central Station Acknowledge
There is an option whereby the communicator will report to one or both Central Stations that a
request for uploading or downloading has been received prior to processing the call. This is called
the 'callback' option. If the Central Station(s) does not acknowledge receipt of this request, upload-
ing or downloading is prohibited. If acknowledged by the Central Station(s), another message is
transmitted informing the Central Station(s) that:
• downloading was successful
• uploading was successful
• uploading/downloading was not successful
Data Protection/Integrity
Programming data is completely verified for accuracy prior to reprogramming of the 411UDAC
EEPROM. Incomplete or corrupted data packets are ignored or retried.
5.2 Downloading to the Communicator
Before initiating the download procedure, make certain that the communicator is unlocked and in
the standby state.
Once an incoming call is accepted/answered by the communicator, the 411UDAC 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,
perform steps 4 through 10; if no callback is requested, perform steps 9 and 10 only
4. Verify product type
5. Identify the Service Terminal location
6. Hang-up/disconnect call
7. Call the Central Station(s) and transmit a request for upload/download message (if
programmed to do so). If this message is accepted, the communicator will proceed to the next
step
8. Return call to the Service Terminal
9. Verify secret code
10. Verify Product type
11. Begin downloading
12. Upon completion of download, call the Central Station(s) back and report a successful
download or failed upload/download status (if programmed to do so).
5.3 Uploading From the Communicator
Items that may be uploaded from the communicator to a Service Terminal are:
• All or portions of programmed data plus the real time clock