semaphore TBOX LT2-530 Series, User Manual, Page: 89 / 197

Version : 1.09 89
10.2. FTP(S) Server
FTP stands for File Transfer Protocol. When subscribing an account to an ISP, usually you have some
Mbytes to your disposal for sending files. It supports secure, encrypted communication.
The FTP server represents the target when sending files. The directory where the files are sent is defined
in the Recipient (see chapter 12.4).
The sending is generated through an alarm recipient “FTP”.
TB
OX
LT2
connects to Internet (through a
connection: ISP, Ethernet or GPRS/3G) and then connects to the FTP server.
Name: It is a free name, to recall when you
create the alarm recipient
Address: text and IP address are accepted.
Connection: You select the way to connect to
the Server (ISP, GPRS/3G, Ethernet).
TCP port: Each TCP/IP service has its own
unique TCP port. It provides a logical
location for the delivery of TCP data.
TCP port used by
TB
OX
LT2 to establish FTP
connection (default=21).
Mode: A FTP connection uses 2 sockets: one
CONTROL and one DATA connection. The
mode determines which party takes the
initiative of the DATA transfer
Passive:
- During the CONTROL connection,
TB
OX
LT2
sends a request PASV. The server returns a
TCP port to use during data connection
- TBox LT2 initiates the DATA connection to
destination TCP port given by the Server
during the CONTROL connection
Active:
- During the CONTROL connection,
TB
OX
LT2
sends a request with IP address and the
Active port (to access the IP address).
- The Server initiates the DATA connection to
destination TCP port given by TB
OX
LT2
during the CONTROL connection.
FTPS: If required by the server,
TB
OX
LT2
supports FTPS, for secure encrypted connection. It uses
SSL as cryptographic protocol.
Login: Depending on the account you have subscribed, you have a login or work with ‘Anonymous
login’.
Account: Some Servers require an account name. If it is not the case, leave this field empty.
This is the basic configuration to connect to the ‘FTP site’. You do not declare a directory in
this configuration, but when declaring the ‘Recipient’ (see chapter 12.4. The Recipients).
This allows creating any combination:
- several ‘FTP recipients’ to one FTP site
- several ‘FTP recipients’ to different FTP sites.
- …