Intermec CN3 User Manual Page 106

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Chapter 3 — Configuring the Computer
92 CN3 Mobile Computer User’s Manual
outside source such as the U.S. Naval Observatory (USNO). The CN3 uses
Simple Network Time Protocol (SNTP) to synchronize with a network
time server.
The default reference time server is the USNO (tock.usno.navy.mil). To
synchronize the time on your CN3 with this time server, you must have a
valid connection to the Internet. You can also synchronize the CN3 system
time with a corporate network server within your firewall that is SNTP-
capable. To use an internal corporate network server, you need to set the
command name in the registry.
Configuring the Computer through the Network
You can change the configuration parameters of the CN3 by sending
commands through a host computer or through the network. If you are
using a network, you can configure one or more CN3s at a time. You can
remotely configure the wireless CN3 by sending a command from an
application on the host computer.
Configuring the Computer in a TCP/IP Direct Connect Network
Use the host computer to configure a wireless CN3 in a TCP/IP network.
To send and receive configuration data, write a host application that can
communicate with the CN3 directly through an access point or through
the network. Use the TMF protocol to send and receive transactions
between the host application and the CN3.
To set up the host computer, verify communication with the CN3. To set
up the application, prepare and write a host application that can
communicate with the IAS and send transactions to and receive
transactions from the CN3 in this format:
where:
Note: You cannot set all parameters through the network. You can only set
those commands that have a syntax in the Intermec Computer Command
Reference Manual.
Note: You can continue running an application on the CN3 while
configuring it from the host computer.
TMF field commands
TMF field A 2-byte field containing one of these values:
CG Configuration Get request sent from the host application.
Cg Configuration Get response sent from the CN3 to the host
computer.
CS Configuration Set request sent from the host application.
Cs Configuration Set response sent from the CN3 to the host
computer.
commands The reader and configuration commands to set on the CN3 or the current
value to retrieve from the CN3. To save configuration changes in flash
memory, send the .+1 reader command as the last command. See the
Command Reference Manual for a list of commands.
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