Networking methods Data transmission and routing
XBee® SX 868 RF Module User Guide
90
The following table shows the results of this test with various configurations. All measurements were
acquired by streaming 10,000 bytes of data in Transparent mode from the transmitter to the receiver
at a baud rate of 115,200 b/s.
Configuration Data throughput
Point to Point, encryption disabled 34.63 kb/s
Point to Point, encryption enabled 34.48 kb/s
Mesh unicast, one hop, encryption disabled 27.54 kb/s
Mesh unicast, one hop, encryption enabled 27.3 kb/s
Mesh unicast, three hops, encryption disabled 9.55 kb/s
Mesh unicast, three hops, encryption enabled 9.38 kb/s
The following table shows the latency (in ms) for 10000 Bytes at 115200 b/s serial data rate.
Configuration Latency
Point to Point, encryption disabled 69.8 ms
Point to Point, encryption enabled 69.99 ms
Mesh, encryption disabled 94.31 ms
Mesh, encryption enabled 95.06 ms
Note We made the data throughput measurements by setting the serial interface rate to 115200 b/s,
and measuring the time taken to send 10000 bytes from source to destination. During the test, no
route discoveries or failures occurred.
Transmission timeouts
When a device in API operating mode receives a Transmit Request (0x10, 0x11) frame, or a device in
Transparent operating mode meets the packetization requirements (RO, RB), the time required to
route the data to its destination depends on:
n
A number of configured parameters.
n
Whether the transmission is a unicast or a broadcast.
n
If the route to the destination address is known.
Timeouts or timing information is provided for the following transmission types:
n
Broadcast transmission
n
Unicast transmission on a known route
n
Unicast transmission on an unknown route
n
Unicast transmission on a broken route
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