Radio Communications 5 - 29
Pairing Bar Code Format
When the digital scanner is configured as an SPP Master, you must create a pairing bar code for the remote
Bluetooth device to which the digital scanner can connect. The Bluetooth address of the remote device must be
known. Pairing bar codes are Code 128 bar codes and are formatted as follows:
<Fnc 3>Bxxxxxxxxxxxx
where:
•
B (or LNKB) is the prefix
•
xxxxxxxxxxxx represents the 12-character Bluetooth address.
Pairing Bar Code Example
If the remote device to which the digital scanner can connect has a Bluetooth address of 11:22:33:44:55:66, then
the pairing bar code is:
Connection Maintenance Interval
When a digital scanner disconnects from a cradle due to a Link Supervision Timeout, the digital scanner
immediately attempts to reconnect to the cradle for 30 seconds. If the auto-reconnect process fails, it can be
restarted by pulling the digital scanner trigger.
To guarantee that a disconnected digital scanner can reconnect when it comes back in range, the cradle reserves
the connection for that digital scanner for a period of time defined by the Connection Maintenance Interval. If the
cradle is supporting the maximum three digital scanners and one digital scanner disconnects, a fourth digital
scanner cannot pair to the cradle during this interval. To connect another digital scanner: either wait until the
connection maintenance interval expires then scan the PAIR bar code on the cradle with the new digital scanner;
or, scan Lock Override (page 5-27) with the new digital scanner then scan the PAIR bar code on the cradle.
Paring Bar Code Content:
‘B’ + Bluetooth Address
B112233445566
NOTE The Connection Maintenance Interval only applies in locked pairing mode (see page 5-26).
NOTE The cradle stores the remote pairing address of each digital scanner in memory regardless of the digital
scanner condition (e.g., discharged battery). When you want to change the digital scanners paired to the
cradle, unpair each digital scanner currently connected to the cradle by scanning the Unpairing bar code
prior and reconnect each appropriate digital scanner by scanning the PAIR bar code on the cradle.
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