# Network limitation for XBee ZNET 2.5

**URL:** <https://forums.digi.com/t/network-limitation-for-xbee-znet-2-5/2320>\
**Category:** XBee - Zigbee\
**Created:** [February 13, 2008, 9:55am UTC](https://forums.digi.com/t/network-limitation-for-xbee-znet-2-5/2320 "2008-02-13T09:55:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![milan](https://avatars.discourse-cdn.com/v4/letter/m/c77e96/32.png) [@milan](https://forums.digi.com/u/milan)\
**Post date:** [February 13, 2008, 9:55am UTC](https://forums.digi.com/t/network-limitation-for-xbee-znet-2-5/2320/1 "2008-02-13T09:55:22Z")

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There are some network limitation for series 1 of XBee  
(XBee/XBee-PRO OEM RF Modules [M100344 2006.09.15]):

1. Maximum children per coord/router is 20 (6 max child routers)
2. Maximum Depth of network is 5

I could not find that limitation for XBEE 2.5. I am using datasheet XBee series 2 OEM RF Modules [90000866\_B 2007.07.019]

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**Author:** ![Jay](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/jay/32/104_2.png) [@Jay](https://forums.digi.com/u/Jay)\
**Post date:** [February 13, 2008, 3:28pm UTC](https://forums.digi.com/t/network-limitation-for-xbee-znet-2-5/2320/2 "2008-02-13T15:28:00Z")

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In the series 2 there are no restrictions on how many routers can join a particular parent. There is, however a 1.2 second acknowledgement timeout. This translates to about 6-8 hops for a unicast packet - depending on the size of the packet.

The maximum number of end device children per router is 8. The maximum radius for a broadcast is 32.

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**Author:** ![milan](https://avatars.discourse-cdn.com/v4/letter/m/c77e96/32.png) [@milan](https://forums.digi.com/u/milan)\
**Post date:** [February 14, 2008, 8:23am UTC](https://forums.digi.com/t/network-limitation-for-xbee-znet-2-5/2320/3 "2008-02-14T08:23:42Z")

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Thanks Jay.