Low Power Mode
This setting allows an endpoint to consume less power. This is achieved primarily by dimming the transceiver LEDs. When set to 2 through 31, the transceiver will sleep between slots. For example, at a setting of 2, the transceiver sleeps 1 out of 2 slots; at a setting of 3, the transceiver sleeps 2 out of 3 slots, and so on.
Low power mode settings shows the changes at different Low Power Mode settings. The actual current draw depends on many factors. The following table gives only a qualitative indication of supply current savings. A low number reduces latency and a high number reduces current consumption. An optimum setting (balancing latency and power savings) is 2 or 3.
|
Setting |
Description |
|---|---|
|
0 |
Disabled |
|
1 |
Transceiver remains awake, listening for the gateway radio transmission on every slot. |
|
2 |
Transceiver sleeps every other slot |
|
3 |
Transceiver sleeps 2 of 3 slots |
|
4–31 |
Transceiver sleeps the number of slots corresponding to one less than the setting. For example, with a setting of 31, the transceiver sleeps 30 of 31 slots. |
Low Power Mode is used only in endpoints. Power savings occur only when the endpoint is linked. There are no power savings when the endpoint is transmitting data. Low power mode is of little value when an endpoint has a constant, high throughput.