# Sleep mod problem

**URL:** <https://forums.digi.com/t/sleep-mod-problem/11419>\
**Category:** XBee - 802.15.4\
**Tags:** xbee\
**Created:** [April 25, 2013, 8:37am UTC](https://forums.digi.com/t/sleep-mod-problem/11419 "2013-04-25T08:37:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![swashia](https://avatars.discourse-cdn.com/v4/letter/s/eb9ed0/32.png) [@swashia](https://forums.digi.com/u/swashia)\
**Post date:** [April 25, 2013, 8:37am UTC](https://forums.digi.com/t/sleep-mod-problem/11419/1 "2013-04-25T08:37:33Z")

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I am trying to test sleep mod (xbee s1)with X-CTU. I am using PIN Sleep mode. The PIN9 pull-up is disabled and its voltage level is controlled by a switch.

This is what I did in X-CTU terminal

+++  
OK  
ATSM1  
OK  
ATCN  
OK

The Xbee, however, would enter sleep mod even when PIN9 is low. When I enter the above command with PIN9 high it would enter sleep mod, but I am unable to wake it up when I switch PIN9 to low.

What did I do wrong?

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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:** [May 12, 2014, 3:17pm UTC](https://forums.digi.com/t/sleep-mod-problem/11419/2 "2014-05-12T15:17:54Z")

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Per page 25 of the user manual, to transition into sleep mode, Assert (high) Sleep\_RQ (pin 9) and to transition to a wake state, De-assert (low) Sleep\_RQ