Unpairing; Connection Maintenance Interval; Considerations - Symbol LS4278 Product Reference Manual

4-28 LS4278 Product Reference Guide

Unpairing

Unpair the scanner from the cradle or PC/host to make the cradle available for pairing with another scanner. Scan the bar code below
to disconnect the scanner from its cradle/PC host.
An unpairing bar code is also included in the LS4278 Quick Reference Guide.

Connection Maintenance Interval

The Connection Maintenance Interval only applies in locked pairing mode (see 4-26).
When a scanner disconnects from a cradle due to a Link Supervision Timeout, the scanner immediately attempts to reconnect to the
cradle for 30 seconds. If the auto-reconnect process fails, it can be restarted by pulling the scanner trigger.
To guarantee that a disconnected scanner can reconnect when it comes back in range, the cradle reserves the connection for that
scanner for a period of time defined by the Connection Maintenance Interval. If the cradle is supporting the maximum three scanners
and one scanner disconnects, a fourth scanner cannot pair to the cradle during this interval. To connect another scanner: either wait
until the connection maintenance interval expires then scan the PAIR bar code on the cradle with the new scanner; or, scan Lock
Override (page 4-27) with the new scanner then scan the PAIR bar code on the cradle.
When the cradle supports the maximum three scanners, it stores the remote pairing address of each scanner
in memory regardless of the scanner condition (e.g., discharged battery). When you want to change the
scanners paired to the cradle, unpair each scanner currently connected to the cradle by scanning the

Unpairing

bar code prior and reconnect each appropriate scanner by scanning the PAIR bar code on the
cradle.
Connection Maintenance Interval options are:
• 15 minutes
• 30 minutes
• One hour
• Two hours
• Four hours
• Eight hours
• 24 hours
• Indefinitely.

Considerations

The system administrator determines the Connection Maintenance Interval. A shorter interval allows new users to gain access to
abandoned connections more quickly, but causes problems if users leave the work area for extended periods. A longer interval allows
existing users to leave the work area for longer periods of time, but ties up the system for new users.
To avoid this conflict, users who are going off-shift can scan the unpair bar code on
Interval and make the connection immediately available.
Unpairing
page 4-28 to ignore the Connection Maintenance