User's Manual

Teklogix 9150 Wireless Gateway User Manual 181
Chapter 6: Mini-Controller Configuration
ANSI/Telnet
If the 9150 does not receive any characters from the host after this timeout has
elapsed, it assumes that the host has finished sending data and is waiting for user
input (in other words, it assumes that a screen of data has been completed).
Important: The Page Saving parameter (page 182) must be enabled in order
to change the value in the Host Timeout parameter.
Escape Timeout
The Escape Timeout is the length of time (in ticks, or 60ths of a second) that the
9150 will hold an “ESC” received from the host, and consider the next received byte
to be part of an escape sequence. The range is 0 to 255, with a default value of 12.
When this timeout has elapsed, the host will have to send another “ESC” character
to start an escape sequence.
Note: This is especially important when an ESC is at the end of a data packet.
Threshold
The Threshold is the minimum number of bytes of update data for the terminal
screen which must be received from the host before the 9150 will store the screen as
a new “saved page”. The range is 0 to 999, with a default value of 200.
Important: The Page Saving parameter (page 182) must be enabled in order
to change the value in the Threshold parameter.
Echo
If this parameter is enabled, the 9150 uses “Smart” Echo. This mode reduces the
amount of data sent to the terminal by decreasing the number of radio transmissions.
Ordinarily, when a character mode application is being used, each keystroke is sent
to the host in one transmission, and the character is echoed by the host in another
transmission. When “Smart” Echo is enabled, the 9150 will not send the host echo
to the terminals if it matches the data sent from the terminal. Thus, the number of
radio transmissions is reduced.
This mode also reduces or eliminates the delay between typing a character on the
keyboard and displaying the character echoed by the host. The maximum number of
characters waiting for echo is 25. Any additional characters will be sent to the host
but not displayed.