Nt (Node Discover Timeout); Node Discovery Options) - Digi XBee S2C 802.15.4 User Manual

AT commands
4 bytes for Lower Long Address
1 byte for the signal strength in -dBm (two's compliment representation)
NULL-terminated string for NI (Node Identifier) value (maximum 20 bytes without NULL
terminator)
Each device that responds to the request will generate a separate Description.
Broadcast an ND command to the network. If the command includes an optional node identifier string
parameter, only those devices with a matching NI string respond without a random offset delay. If the
command does not include a node identifier string parameter, all devices respond with a random
offset delay.
The NT setting determines the maximum timeout (13 seconds by default), this value is sent along with
the discovery broadcast and determines the random delay the remote nodes use to prevent the
responses from colliding.
For more information about options that affect the behavior of the ND command Refer to the
description of the NO command for options which affect the behavior of the ND command.
WARNING! If the NT setting is small relative to the number of devices on the network,
responses may be lost due to channel congestion. Regardless of the NT setting, because
the random offset only mitigates transmission collisions, getting responses from all devices
in the network is not guaranteed.
Parameter range
20-byte printable ASCII string
Default
N/A

NT (Node Discover Timeout)

Sets the amount of time a base node waits for responses from other nodes when using the ND (Node
Discover) command. The NT value is transmitted with the ND command.
Remote nodes set up a random hold-off time based on this time. Once the ND command has ended,
the base discards any response it receives.
Parameter range
0x1 - 0xFC (x 100 ms)
Default
0x19 (2.5 decimal seconds)
NO (Node Discovery Options)
Use NO to suppress or include a self-response to ND (Node Discover) commands. When NO bit 1 = 1, a
device performing a Node Discover includes a response entry for itself.
Parameter range
0 - 1
XBee/XBee-PRO S2C 802.15.4 RF Module User Guide
Networking and security commands
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