Can the coordinator queue one message for each endpoint, or does it only queue one message in total?

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• Is it possible to queue up multiple message to go to the same device?

  No, you can only queue one message at a time for a particular endpoint. Each endpoint has its own queue that is independent of the others. The purpose of the queued message is to immediately send a message to a sleepy endpoint when it has waken up ...

• What is the difference between a coordinator and an endpoint?

  The SubGig standard defines a very simple star topology where one coordinator device speaks to multiple endpoints. The coordinator is generally controlled by a host processor, typically on a gateway connected to the cloud. A device acting as a ...

• Does the coordinator need to have its sleep mode enabled to send queued packets to sleepy endpoints?

  No and you typically don’t want to put the coordinator into sleep mode. When the queue packet command is used the coordinator will check to see if the endpoint is sleepy, and if it is not then it will send the message immediately. In other words, the ...

• The manual mentions that in sniffer mode, the device ID is reported “of the associated endpoint” (6.4.2.3). Does that mean it cannot sniff message from other coordinators?

  Yes, it will sniff out any packets whether it comes from a coordinator or endpoint. The sniffer is a special diagnostic mode and thus is not operating as either a coordinator or endpoint itself.

• If I only used AT sleep mode command without SLEEP_RQ, coordinator still receives STA 0001, is this behavior right?

  The sleep mode command ATSM will enable or disable sleep mode, but does not put the device to sleep. If an endpoint has sleep mode enabled but it is not sleeping then the coordinator should not receive the STA 0001 (sleepy endpoint) status message.