Precidia ipocket232, User Manual

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4 Configuring the Serial Port Settings iPocket 232 User Guide
23-CML000293 iPocket232 Inc. 23
Table 4.1: Data Formatting Options
Menu Item Description
Telnet
Turns the iPocket 232 into either a telnet client (most common use)
or a telnet server and allows the user to telnet out of the iPocket 232
to a remote server, such as a UNIX workstation.
The standard connection control options are supported. By leaving
the Connection Control parameter at Automatic (default setting),
the user can initiate the telnet session by pressing any
alphanumeric key. If the Connection Control parameter is set to
DTR/DSR Control, the iPocket
232 tries to open a telnet session as
soon as DSR is detected from the terminal, but the timeout function
of most hosts makes this option somewhat unreliable.
Telnet-Client: The most common use of the telnet protocol. To
create a telnet client, select
tcp-client
as the session mode. This
configuration allows the iPocket 232 to communicate with the telnet
server at the configured Remote IP address and Remote Port.
Telnet-Server: To create a telnet server, select
tcp-server
as the
session mode when configuring this protocol. The iPocket 232
listens on port 23, and the Remote Password must be disabled so
that the standard configuration program is not listening on that port.
You can configure Telnet to listen on a port other than 23 (but
above 1024 to avoid using reserved ports).
Transparent
Typical setting. No alterations are made to the data stream, nor is it
parsed in any way. Data is collected until either the preferred packet
size is reached or there is a pause between characters that exceeds
the inter-character timer. The buffer is then transmitted as a single
frame.
P
referred Packet Size and Max Inter-Char Delay can be left
at the default settings (0), and the unit will automatically determine
a reasonable setting based on the current serial port speed.
Transparent protocol includes the option “Packet Prefix”, which
allows you to include a header in the packet defining it’s length.
See Section 4.11, Packet Prefix (Transparent Protocol Only).