Allflex AWR300 User Guide
13/11/19
Page 10
4
Operating States
The AWR300 has several operating states related to display status and communication
possibilities over USB. The following chart shows the different states.
Reset
Stickreader Mode (CDC)
Virtual Comport
Display ON
Communication enabled
SD-Card Mode (MSC)
Mass Storage
Display OFF
No Communication
Switch-Off-Time
>2 sec.
Suspend Mode
Display OFF
Communication enabled
Sleep Mode
Display OFF
No Communication
Timeout (30min)
Key pressed
Timeout
USB plug-in
When the reader is switched on and it is connected via USB, it works in CDC mode. This means
that a virtual comport is created on the computer and it can send commands to the device via
a serial port connection. In this state, the mass storage mode is not activated and files cannot
be copied to or from the AWR300.
After the configurable switch-off-time (default = 60 seconds) has elapsed, the reader enters
suspend mode. The display is switched off but communication is still possible. In this state,
the blue LED on the right above the display flashes in cycles of one second. After the switch-
off-time has elapsed again, the device enters sleep mode and communication is not possible
anymore. When the external power adapter is connected (charging, multicolor LED is flashing
red), the device remains in suspend mode and does not enter sleep mode at all.
If the AWR300 is connected to USB while it is switched off, the SD-card mode is activated. In
this case, the reader is attached to the computer as a mass storage device and file transfer is
possible. Once the key is pressed, the device switches on and uses CDC mode immediately.