Fire-Lite P K-411UD Windows-Based Off-Line Programming Utility - Manual (Page 63)

Document #50802 Rev. B 1/5/99 P/N 50802:B 63
Error Checking
9.4 Error Checking
Data from the service terminal is transmitted to a temporary holding buffer in the digital communicator. This data is
verified by the communicator for integrity and if the data is correct, it will be transferred from the temporary buffer to
the communicator memory for permanent storage and immediate use.
If the data is found to be incorrect, the digital communicator will request the service terminal to retransmit the data.
If the retransmitted data is still incorrect, the communicator will continue to request retransmission for a maximum of
2 minutes. If still unsuccessful, the communicator will terminate the connection. Should a failure to transmit occur,
the operator must reinitiate the sequence at the service terminal.
9.5 Central Station Acknowledge
The digital communicator will report to the Central Station(s) that a request for upload or download has been
received. If the Central Station(s) does not acknowledge receipt of this request, uploading or downloading is prohib-
ited. If acknowledged by the Central Station(s), another message is transmitted by the digital communicator inform-
ing the Central Station(s) that:
• downloading was successful
• uploading was successful
• uploading/downloading was not successful
9.6 Password Protection
The PK-411UD provides four user access levels, each requiring a password for access. Refer to “Operator” on page
16, for a description about this process.
• Level 0 is reserved for the Master(s). All PK-411UD options are available to the Master. In addition, the Mas-
ter must assign all other levels and their passwords and may view Operator Information
• Level 1 has access to all options except the assignment of level access and passwords and Level 1 cannot dis-
able Central Station callback. A Level 1 user can view only their own Operator information and can change
only their own password
• Level 2 can upload from the digital communicator, view the upload data, print the upload and download data,
change the modem configuration and view the download data but not edit and save it. A Level 2 user can view
only their own Operator information and can change only their own password
• Level 3 can only view and print the upload data. A Level 3 user can view only their own Operator information
and can change only their own password