Metrologic IS4910 Series Spezifikationen PDF herunterladen (Seite 31)

THEORY OF OPERATION

Power-down Mode (TTL RS232 Decode Only)

The power of the scanner is turned off.

PWRDWN Pin State: Asserted (HIGH).

Transition to Power-down Mode:

• The scanner is turned to Power-down Mode from Sleep Mode upon the

expiration of the “power-down” timeout, which is set to 10 minutes by

default. The “power-down” timeout is restarted every time the scanner

enters the Sleep Mode.

• The scanner can be turned to Power-down Mode immediately upon the

reception of a special single-byte serial command from the host. The

byte value is configurable.

The scanner can wake up from Power-down Mode and reboot:

• Upon reception of the nTrig or nWake signals.

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Metrologic IS4910 Series Spezifikationen Seite 31