# xbee 24-b to xbee 24-zb

**URL:** <https://forums.digi.com/t/xbee-24-b-to-xbee-24-zb/17000>\
**Category:** XBee & XBee Gateway\
**Tags:** xbee, zigbee\
**Created:** [June 28, 2016, 5:41am UTC](https://forums.digi.com/t/xbee-24-b-to-xbee-24-zb/17000 "2016-06-28T05:41:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![csreddy](https://avatars.discourse-cdn.com/v4/letter/c/13edae/32.png) [@csreddy](https://forums.digi.com/u/csreddy)\
**Post date:** [June 28, 2016, 5:41am UTC](https://forums.digi.com/t/xbee-24-b-to-xbee-24-zb/17000/1 "2016-06-28T05:41:11Z")

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i have old xbee module part number is xbee 24-bwit-004 module the actual firmware version is znet. i am able to upgrade the firmware to current firmware version (s2b firmware). but i am unable to communicate with new xbee pro s2b module or xbee - s2c

is it possible to communicate between this module?  
if possible please give a suggestion.

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**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\
**Post date:** [June 28, 2016, 1:40pm UTC](https://forums.digi.com/t/xbee-24-b-to-xbee-24-zb/17000/2 "2016-06-28T13:40:58Z")

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Yes it is. Check your channel mask. You may need to adjust it on the S2B and S2C to accommodate the S2.