Missing Required Argument

There is a sufficient number of arguments, but some required arguments are missing. The required arguments are -p (COM port), -r (serial port rate), -vsd (software download file version), -vna (software .nac operation code version), -nsd (software download filename prefix) and -nna (.nac software operation code filename prefix).

No Response from NAC within the Time-out Period

The PC sent a message to the NETServer three times and failed to receive a response.

No Such File or Directory

Cannot find the program to be downloaded in the specified or default directory.

Permission Denied

The SDL program tries to open a file, but the file system soft- ware denies access to the file.

Problem Erasing Flash ROM

The PC software’s request to erase Flash memory was unsuc- cessful.

Programming Flash ROM Error

An error was detected during Flash ROM programming.

Software Download Error

Unknown error occurs during software download.

Too Many Open Files

The number of open files exceeded the number of open files allowed by the file system software.

Unknown Error Returned from NAC

The PC SDL program does not recognize the error code returned from the NETServer.

Software Download C-13

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USRobotics NETServer/16, NETServer/8 manual Software Download C-13