I recently built a XBee network (using Firmware version 9000 of Digimesh 2.4 TH function set of XB24c family). Currently I use the DTR pin to put XBee to sleep, and this configuration works perfectly. But I read that this is not a good solution as the mesh must be made again when a node leaves or joins network.
DigiMesh 2.4 allows an Sleep mode with SM=7 or SM=8 where they sleep synchronously. When updating the firmware with XCTU, it does not show SM 7 and 8 options.
Is there any other thing I should set, or is there something else I am missing?