USRobotics NETServer/8 - Manual (Page 248)

C-10 Software Download
Bad Message Length
The SDL program detects an invalid message length at the data
link layer. The message length is either larger or smaller than
the length required by the protocol. This error normally indi-
cates message corruption due to noise on the transmission line.
Bad Start of Text Characters
The data link layer of the PC SDL program detected an invalid
start-of-text characters sequence.
Command Line Error
The PC SDL program detected unknown command line argu-
ments.
Communication Error
The PC SDL program detected unknown communication errors.
File CRC Error
During file verification, prior to SDL, a bad CRC was found on
the program file. This indicates file corruption.
File Error
The PC SDL program detected unknown information in the file
header of the program to be downloaded.
File I/O Error
The PC SDL program detected unknown file I/O errors.
Indicator Unknown
The PC SDL program detected an unrecognized indicator in the
MB message returned from the NETServer software.