Quectel WCDMA UG FTP Series User Manual

UMTS/HSPA Module Series
WCDMA UGxx FTP AT Commands Manual
WCDMA_UGxx_FTP_AT_Commands_Manual Confidential / Released 43 / 44
5 Summary of FTP Protocol Error Codes
The protocol error code <protocol error> indicates an error replied from FTP server. Please refer to
RFC959 (File Transfer Protocol).The details about <protocol error> are described in the following table.
Table 2: Summary of FTP Protocol Error Codes
<protocol error>
Meaning
421
Service not available, closing control connection
425
Open data connection fails
426
Connection closed; transfer aborted
450
Requested file action not taken
451
Requested action aborted: local error in processing
452
Requested action not taken: insufficient system storage
500
Syntax error, command unrecognized
501
Syntax error in parameters or arguments
502
Command not implemented
503
Bad sequence of commands
504
Command parameter not implemented
530
Not logged in
532
Need account for storing files
550
Requested action not taken. File unavailable
551
Requested action aborted: page type unknown
552
Requested file action aborted. Exceeded storage allocation
553
Requested action not taken. File name not allowed
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Quectel WCDMA UG FTP Series Specifications

General

Brand	Quectel
Model	WCDMA UG FTP Series
Category	Control Unit
Language	English