Power Economy Vs. Wpan Connection - CipherLab 2564 User Manual

2564 Barcode Scanner

1.1.3 POWER ECONOMY VS. WPAN CONNECTION

Before the scanner can communicate with the host computer, Bluetooth connection (or
WPAN connection) needs to be established. The scanner's power economy always
accommodates itself to the establishment of the WPAN connection.
The following describes how the scanner carries out power economy before and after the
establishment of the WPAN connection:
Before establishing a WPAN connection successfully...
1. The scanner stays active for a specified period of time (2 minutes by default) for the following
scenarios. The CPU runs at full speed, and the LED blinks blue (On/Off ratio 0.5 s: 0.5 s).
(a) waiting for a connection request from the host (BT SPP Slave Mode)
(b) trying to connect to the host (BT HID or BT SPP Master Mode)
(c) trying to connect to the cradle
2. If the scanner fails to connect within 2 minutes, it becomes inactive to save power for the
remaining period of time (the specified "Auto Power Off" value minus 2 minutes). The CPU
starts to run at low speed, and the LED begins to blink red (On/Off ratio 0.3 s: 2.5 s).
Pull the trigger to wake up the scanner when it becomes inactive, and the scanner will become
active again.
3. If it fails to connect again and again, and finally stays inactive until the specified Auto Power
Off time elapses, the scanner will automatically turn off in order to conserve battery power.
Pull down the trigger for about 2 seconds to turn it on again.
Note: For scenarios (a) and (b) in step 1, you may need to search for the scanner again
on your computer.
After establishing a WPAN connection successfully...
1. Once a WPAN connection is established successfully, the scanner will stay active for a specified
period of time (2 minutes by default) for data transmission. The CPU runs at full speed, and
the LED blinks blue (On/Off ratio 0.02 s: 3 s).
2. If the scanner stays idle for 2 minutes (default), it will then turn inactive to save power for the
remaining period of time (the specified "Auto Power Off" value minus 2 minutes). The CPU
runs at low speed, and the LED is blinking red (On/Off ratio 0.3 s: 2.5 s).
Pull the trigger to wake up the scanner when it becomes inactive, then the scanner will stay
active again.

For BT HID or SPP, the scanner automatically shuts down after the configured "Auto Power
Off" time without the transition from full CPU speed to low CPU speed. However, when
connecting with the cradle, the scanner will go through the transition in order to save
power.
3. If the scanner first becomes idle and finally stays inactive until the specified Auto Power Off
time is up, the scanner will automatically turn off in order to conserve battery power. You will
hear three short beeps, tone descending from high to low.
Pull down the trigger for about 2 seconds to turn it on again.

For BT HID, the scanner resumes the connection with the host upon powering on again, as
long as the host application is running. You will hear three short beeps, tone ascending
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