Swapping Scanners Between Two Systems With Nine Scanners On Each; Communication Between The Cordless System And The Host; Acknowledgement From The Base - Intermec Sabre 1552 Scanner System Manual

Each base keeps an association list of up to nine scanners. This list contains the
associated scanners' radio serial numbers and dynamic addresses. New dynamic
addresses are assigned to the scanners each time a base Reset occurs. This helps the
Cordless System track the status of the different scanners in its network during the
association and reassociation process.

Swapping Scanners Between Two Systems with Nine Scanners on Each

You may use the Remove Scanner Selection to disassociate any scanner and then add a
new scanner by scanning the Association Bar Code with the new scanner. If you cannot
scan the disassociation label because the scanner you are trying to disassociate was
damaged, remove power from that scanner and it automatically disassociates in
approximately 3 seconds.

Communication Between the Cordless System and the Host

The scanner provides immediate feedback in the form of a "good read" indication (a
green LED on the scanner and an audible beep) after a bar code is scanned correctly and
the base has acknowledged receiving the data. The Cordless System also provides two-
way communication between the scanner and the base or host system.
When data is scanned, the data is sent to the host system via the base. Confirmation
from the host system or the base indicates that the data sent was received by the host.
The scanner recognizes two forms of host confirmation: data acknowledgement (ACK)
from the base or an ACK from the host system. If it can't be determined that the data
has been properly sent to the host system, the scanner issues four beeps (low, high, low,
high tones). You must check to see if the scanned data was received by the host system.

Acknowledgement From the Base

If the Cordless System is configured for a keyboard wedge host interface, a signal
(ACK) is sent from the base confirming that the data was received and is being sent on
to the host system. (Since keyboard wedge interfaces cannot provide bi-directional
communications, they do not permit host confirmation.)
* Base sends data to Host after ACK is sent to scanner.
1) Good Read
2) ACK
from
Base
Getting Started
3) *
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