# Point To Point with two Xbees Series 2.

**URL:** <https://forums.digi.com/t/point-to-point-with-two-xbees-series-2/2295>\
**Category:** XBee - Zigbee\
**Created:** [May 6, 2008, 9:46am UTC](https://forums.digi.com/t/point-to-point-with-two-xbees-series-2/2295 "2008-05-06T09:46:02Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Ngel](https://avatars.discourse-cdn.com/v4/letter/n/ba9def/32.png) [@Ngel](https://forums.digi.com/u/Ngel)\
**Post date:** [May 6, 2008, 9:46am UTC](https://forums.digi.com/t/point-to-point-with-two-xbees-series-2/2295/1 "2008-05-06T09:46:02Z")

</div>

Hello,  
I have two XBee Series 2 modules. I connected them to a voltage conversion chip to a PC (USB TO RS232). I use XCTU software and can communicate with the modules (read and write). Firmware version is 1220.  
Both modules are connected just by four Pins (Data in, Data out, +3V (stabilized) and GND).

I want to communicte between only both of them and when i try to change the “Function Set” to ANY other then “ZigBee ROUTER/END DEVICE AT” the module shut him selfe down (ON led is off) and Xctu writing “Write Parameters…Failed”

what can i do to make both of those Xbee’s communicate to each other?

BTW  
i already configure two Xbee Series 1 to communicate with each other and want to do it with series 2.  
my project on youtube:  
[http://www.youtube.com/watch?v=3D-Kv8bwUHw](http://www.youtube.com/watch?v=3D-Kv8bwUHw)

---

<div class="post-metadata">

**Author:** ![Ngel](https://avatars.discourse-cdn.com/v4/letter/n/ba9def/32.png) [@Ngel](https://forums.digi.com/u/Ngel)\
**Post date:** [May 6, 2008, 8:24pm UTC](https://forums.digi.com/t/point-to-point-with-two-xbees-series-2/2295/2 "2008-05-06T20:24:41Z")

</div>

i found on google that there is an option to:  
RTS (pin 16) =\> 3.3V (pin 1)  
DTR (pin 9) =\> GND (pin 10)  
and then it is possible to update the module, but it aint works for me.