Honeywell Q7055A - Manual (Page 26)

BUILDING NETWORK ADAPTER BNA-1C/2CS/2DN
26 EN1B-0198GE51 R0801
2. Wait till the heartbeat LED starts flashing RED,
then press the Mode Button.
3. The heartbeat flashing immediately stops and
the LED is permanently on. The operating
modes are displayed using the LAN status
LEDs Lnk, Tx, Rx. The Normal Mode is
represented via the Lnk LED.
4. Now push the Mode Button again and the Tx
LED will also be switched on. Two LEDs on
means Stay in Bootloader Mode is selected.
5. To accept one of the modes, push the Mode
Button again and hold it for about 1 second.
The BNA Bootloader feedback that the mode
has been accepted is indicated with all Mode
LEDs and the heartbeat LED flashing four
times.
If there is no need to change the mode after the
mode button has been pressed, then just stop
pressing the mode button. The BNA device will
continue with its normal work after a few seconds.