Xenon 1900, User Manual

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Auto Reconnect Mode set to 1
Maximum Link Attempts set to 0
Relink Time-Out set to 10
Scanner Power Time-Out Timer set to 1800
Note: See Scanner Power Time-Out Timer on page 3-16.
The scanner attempts to connect to the base or Access Point every 15 sec-
onds, measured from one attempt start to the next attempt start. After one
half hour, the scanner powers off.
Host Acknowledgment
Some applications require that the host terminal (or server) validate incoming
bar code data (database look-up) and provide acknowledgement to the scanner
whether or not to proceed. In Host ACK Mode, the scanner waits for this
acknowledgement after each scan. Visual and audible acknowledgements pro-
vide valuable feedback to the scan operator. The Host ACK functionality is con-
trolled via a number of pre-defined escape commands that are sent to the
scanner to make it behave in different ways.
Note: System performance degrades when using Host ACK at rates lower than
9600 baud.
The following criteria must be met for the Host ACK to work correctly:
• The cordless system must be configured for Host Port RS232 (terminal ID =
000) or USB COM Emulation (terminal ID = 130).
• RTS/CTS is defaulted off. You must enable it if the host system requires it.
• Host ACK must be set to On (
page 3-38 ).
• A comma must be used as a terminator.
• The host terminal software must be capable of interpreting the bar code data,
make decisions based on the data content, and send out appropriate escape
commands to the scanner.
Escape commands are addressed to the scanner via “Application Work
Groups.” Once a command is sent, all scanners in a group respond to that com-
mand. Because of this,
it is recommended that each scanner is assigned to
its own group in Host ACK mode .
The commands to which the scanner responds are listed on page 3-38 . The
[ESC] is a 1B in hex. A typical command string is y [ESC] x, where “y” is the
application work group number, “[ESC] x” is the escape command, and the
comma is the terminator, which is required. (When “y” is not specified, the com-
mand is sent to the default Application Work Group 0.)
Example: Commands may be strung together to create custom response
sequences. An example of a command string is listed below.
0[ESC]4,[ESC]5,[ESC]6,
The above example will make a scanner that is in application work
group zero beep low, then medium, then high.