TransCore SmartPass AI1611, System Manual

Page: 104 / 179

Modes of Operation
Caution
Because this condition would lead to a loss of communications, the host should
not attempt to change communications parameters or protocols during marginal
communications conditions.
Vorsicht
Da diese Bedingung zum Verlust der Kommunikation führen kann, sollte der Host
nicht versuchen, die Kommunikations- oder Protokollparameter während der
Kommunikation im Grenzbereich zu ändern.
Precaución
El host no debería intentar cambiar los parámetros o los protocolos de
comunicaciones bajo condiciones límite para las comunicaciones, ya que esto
causaría la pérdida de las comunicaciones.
Précaution
L'ordinateur central ne doit pas tenter de modifier les paramètres ou protocoles de
communication durant des conditions de communications marginales, sous peine
de causer la perte des communications.
Attenzione
Poiché questa condizione porterebbe alla perdita di comunicazione, l’host non
dovrebbe tentare di cambiare i parametri o i protocolli di comunicazione durante
condizioni di comunicazione marginali.
The reader responds to command 611 (change to error correcting protocol) with a
Done
message in basic protocol and then switches to ECP. Conversely, when
switching from ECP back to basic protocol or data inquiry protocols (commands 610
or 613), the
Done
message is transmitted in ECP format.
Note: TransCore recommends that basic protocol (not ECP) be used when
commands will be entered manually at the keyboard.
Buffer Control Mode
When buffer control mode (BCM) is enabled (command 6161), the reader transmits
only in response to a host command. The one exception to this rule occurs on start-
up when the reader transmits its two-line sign-on message. BCM can only be used
with ECP.
The following commands are used for BCM:
7-5