Acroprint TQ600 (software version 4.x and above) - Manual (Page 55)

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Appendix
USB Flash Drive Management
See “Remote Terminal Functionality” in the Documents folder of the
timeQplus CD.
Bell Schedule
The TQ600 has a bell signal that can be programmed for different times
during the day. The bell schedule and bell duration can be set based on
user requirements. A total of 20 bell schedules can be set.
The TQ600 has an internal electronic bell, see Chapter 5, “Power
Manage”.
TQ600 Magnetic Stripe/TQ600 Barcode terminals have relay contacts for
access control/external bell function. It requires purchasing and
connecting a relay box and external bell. For more information see
“TQ600BC-M External Bell Connection.pdf” in the timeQplus
Documentation folder.
Reserve Battery (Mini-UPS)
In order for the TQ600 to function during power interruptions an
optional 12V Mini-UPS (p/n 74-0169-000) is available. Contact your
dealer or Acroprint to purchase.
UPS Operational State:
The UPS remains idle as long as AC Power is available but will
automatically supply power to the TQ600 the instant AC Power is
interrupted. When AC Power is restored the UPS will automatically
charge until fully charged.