NimbeLink Skywire Series Manual
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Skywire® Development Kit File
Transfer Protocol (FTP)
NimbeLink Corp
Updated: January 2019
PN 30047 rev 3
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1
Table of Contents
Introduction
2
1.1 Orderable Part Numbers
2
1.2 Prerequisites
3
Download from an FTP Server
4
Overview
4
Activate the Data Session
4
Set the Time Out Period
4
Open an FTP Connection
4
Set the File Type
5
Change the Working Directory (If Necessary)
5
Download the File from the FTP Server
5
2.8 Close the FTP Connection
6
2.9 Deactivate the Data Session (If Necessary)
6
Upload to an FTP Server
6
3.1 Overview
6
3.2 Activate the Data Session
6
3.3 Set the Time Out Period
7
3.4 Open an FTP Connection
7
3.5 Set the File Type
7
3.6 Upload the File to the FTP Server
7
3.7 Close the FTP Connection
8
3.8 Deactivate the Data Session (If Necessary)
8
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1.1 Orderable Part Numbers
Orderable Device
Description
Carrier
Network
Type
NL-SWDK
Skywire Development Kit
Any
Any
NL-SW-1xRTT-A
2G 1xRTT
Aeris
CDMA
NL-SW-1xRTT-S
2G 1xRTT
Sprint
CDMA
NL-SW-1xRTT-V
2G 1xRTT
Verizon
CDMA
NL-SW-GPRS
2G GPRS
Any GSM (AT&T,
T-Mobile, etc.)
GSM
NL-SW-EVDO-A
3G EVDO, GPS, GLONASS
Aeris
CDMA
NL-SW-EVDO-V
3G EVDO, GPS, GLONASS
Verizon
CDMA
NL-SW-HSPA
3G HSPA+
Global
GSM
NL-SW-HSPA-B
3G HSPA+
Global
GSM
1.2 Prerequisites
This document assumes you have completed the initial setup
of
your
modem
and
development
kit.
If
you have not
completed those steps, refer to the Skywire® Development Kit
User
Manual
and
complete
the
modem
setup
before
proceeding.
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2. Download from an FTP Server
2.1. Overview
File Transfer Protocol (FTP) is a tried-and-tested industry standard for transferring files
over TCP-based networks. Skywire® modems support FTP, which is useful for
transmitting data. Below is an example for downloading a small text file from a FTP
server to the Skywire modem.
2.2. Activate the Data Session
In the terminal program, type the following command:
AT#SGACT=1,1
followed by the enter key, and the terminal program should display:
#SGACT: www.xxx.yyy.zzz
OK
where www.xxx.yyy.zzz is the IP address of your Skywire modem.
2.3. Set the Time Out Period
In the terminal program, type the following command:
AT#FTPTO=1000
followed by the enter key, and the terminal should display:
OK
2.4. Open an FTP Connection
To open an FTP connection, type the following into the terminal program:
AT#FTPOPEN=”example.com:xx”,”username”,”password”,y
where example.com:xx is the FTP server and port number you would like to connect
to, username and password is the login information for the the server, and y is the
FTP mode you would like to operate in (0 = active (default), 1 = passive), followed by
the enter key. After a short delay, the terminal program should display:
OK
The FTP connection has now been established.
Note: If you do not specify a port, the default value of 21 will be used.
2.5. Set the File Type
In the terminal program, type the following command:
AT#FTPTYPE=x
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where x is either 0 for Binary file type, or 1 for ASCII file type, followed by the enter key.
The terminal program should respond with:
OK
2.6. Change the Working Directory (If Necessary)
If necessary, you may need to change the directory where the file needs to be
downloaded to. Type the following command into the terminal program:
AT#FTPCWD=”directory”
where directory is the directory you need to change to. The terminal should respond
with:
OK
2.7. Download the File from the FTP Server
To download a file from the FTP server, type the following command into the terminal
program:
AT#FTPGET=”file.txt”
where file.txt is the file you would like to download, followed by the enter key.
Note: If necessary, you can list the files available for download from the FTP server
using the AT#FTPLIST command.
The terminal should respond with:
CONNECT
and begin downloading. Once it is complete, the terminal program will say:
NO CARRIER
2.8 Close the FTP Connection
Once you have downloaded the file that you need, you can close the FTP connection
with the following command:
AT#FTPCLOSE
followed by the enter key. After a short delay, the terminal should respond with:
OK
2.9 Deactivate the Data Session (If Necessary)
To close the data session, type the following into the terminal program:
AT#SGACT=1,0
followed by the enter key, and the terminal program should respond with:
OK
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3. Upload to an FTP Server
3.1 Overview
In addition to downloading files from an FTP server, your Skywire modem can upload
data to a server via FTP. Below is an example for uploading a file from a Skywire
modem to an FTP server.
3.2 Activate the Data Session
In the terminal program, type the following command:
AT#SGACT=1,1
followed by the enter key, and the terminal program should display:
#SGACT: www.xxx.yyy.zzz
OK
where www.xxx.yyy.zzz is the IP address of your Skywire modem.
3.3 Set the Time Out Period
In the terminal program, type the following command:
AT#FTPTO=1000
followed by the enter key, and the terminal should display:
OK
3.4 Open an FTP Connection
To open an FTP connection, type the following into the terminal program:
AT#FTPOPEN=”example.com:xx”,”username”,”password”,y
where example.com:xx is the FTP server and port number you would like to connect
to, username and password is the login information for the the server, and y is the
FTP mode you would like to operate in (0 = active (default), 1 = passive), followed by
the enter key. After a short delay, the terminal program should display:
OK
The FTP connection has now been established.
Note: If you do not specify a port, the default value of 21 will be used.
3.5 Set the File Type
In the terminal program, type the following command:
AT#FTPTYPE=x
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where x is either 0 for Binary file type, or 1 for ASCII file type, followed by the enter key.
The terminal program should respond with:
OK
3.6 Upload the File to the FTP Server
To upload a file to the FTP server, type the following command into the terminal
program:
AT#FTPPUT=”file.txt”
where file.txt is the file you would like to upload, followed by the enter key. The terminal
should respond with:
CONNECT
and begin downloading. Once it is complete, the terminal program will say:
NO CARRIER
3.7 Close the FTP Connection
Once you have downloaded the file that you need, you can close the FTP connection
with the following command:
AT#FTPCLOSE
followed by the enter key. After a short delay, the terminal should respond with:
OK
3.8 Deactivate the Data Session (If Necessary)
To close the data session, type the following into the terminal program:
AT#SGACT=1,0
followed by the enter key, and the terminal program should respond with:
OK
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