DFR0174 Xbee USB adapter board layout

Hello,
I have a question on [url=http://www.dfrobot.com/index.php?route=product/product&filter_name=dfr0174&product_id=588]DFR0174 Xbee USB adapter board[/url]
Does anyone know what these 3 pairs of holes, surrounded by white lines, in the center of the board are for?
[img]http://www.dfrobot.com/image/cache/data/DFR0174/small%20pic/IMGP4616-600x600.jpg[/img]
I have a question on [url=http://www.dfrobot.com/index.php?route=product/product&filter_name=dfr0174&product_id=588]DFR0174 Xbee USB adapter board[/url]
Does anyone know what these 3 pairs of holes, surrounded by white lines, in the center of the board are for?
[img]http://www.dfrobot.com/image/cache/data/DFR0174/small%20pic/IMGP4616-600x600.jpg[/img]
2014-07-03 18:17:15 In theory, yes
And don't worry about the bootloader, you could find them in your Arduino IDE folder like this:
arduino-1.0.5-r2\hardware\arduino\firmwares
Grey.CC
And don't worry about the bootloader, you could find them in your Arduino IDE folder like this:
arduino-1.0.5-r2\hardware\arduino\firmwares

2014-07-03 04:08:06 [quote="Grey"]
It is MEGA8u2 ICSP interface, you could burn its bootloader via this interface.
[/quote]
Aha. So, in theory, I can erase MEGA8u2 firmware so that it does not interfere in XBEE-TTL communications?
Is firmware for MEGA8u2 available for download in case I want to restore the firmware later?
azarubkin
It is MEGA8u2 ICSP interface, you could burn its bootloader via this interface.
[/quote]
Aha. So, in theory, I can erase MEGA8u2 firmware so that it does not interfere in XBEE-TTL communications?
Is firmware for MEGA8u2 available for download in case I want to restore the firmware later?

2014-07-02 20:09:10 Hello azarubkin,
It is MEGA8u2 ICSP interface, you could burn its bootloader via this interface.
Grey.CC
It is MEGA8u2 ICSP interface, you could burn its bootloader via this interface.
