SN2X-PRIMER STMicroelectronics, SN2X-PRIMER Datasheet - Page 14

• Manufacturer Part Number: SN2X-PRIMER
• Manufacturer: STMicroelectronics

Specifications of SN2X-PRIMER

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Getting started
Note:
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During the joining procedure, the Router (joiner device) requests the network key and
retrieves it encrypted using the device's preconfigured Link Key.
Only the devices with the same preconfigured Link Key can obtain the network key and can
complete the joining authentication with success; otherwise, the device cannot
communicate with the devices on the ZigBee network.
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When the device is joined, the Coordinator board displays the Network ID (0x796E, for
example) and the EUI (0080E100000009BE, for example) as a result of an application-level
message sent by the Router. When the Router board is joined to a network, LED D1 is
active (green).
Different link key
In this scenario, the Coordinator changes its Link Key from the preconfigured Key 1 to Key 2
and the Router maintains its original preconfigured key called Key 1.
The Router as first step executes the unauthenticated joining, and subsequently the
Coordinator starts the authentication procedure to complete the joining process. As result,
the Trust Center refuses the Router's authentication because it has a different link key and
cannot join the network (PAN).
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Because a different Link Key is used, the Router cannot join the network.
On the Coordinator board, scroll right to enter the first-level menu.
Scroll left or right to display Form Network and press the joystick to confirm.
Scroll left or right to display Change security Key and press the joystick. Select Key 1
(Default) and press the joystick to set the key and to allow its distribution within the
network.
Scroll left or right to display Permit Joining and press the joystick to confirm.
Scroll up or down to select the number of seconds (between 0 and 99) to allow joining
and press the joystick to confirm. If set to 0, joining is disabled. The Coordinator is now
ready to accept requests from other devices that wish to join the network. The
Coordinator displays the “Now Permit Joining with security key 01” message.
On the Router board, connect jumper SW4 in 1-2 position or press switch SW3 to reset
the board. The Router starts to scan channels and will send a request to join available
networks.
On the Coordinator board, scroll right to enter the first-level menu.
Scroll left or right to display Form Network and press the joystick to confirm.
Scroll left or right to display Change security Key and press the joystick. Scroll down
to select Key 2 and press the joystick to set the key and to allow its distribution within
the network.
Scroll left or right to display Permit Joining and press the joystick to confirm.
Scroll up or down to select the number of seconds (between 0 and 99) to allow joining
and press the joystick to confirm. If set to 0, joining is disabled. The Coordinator is now
ready to accept requests from other devices that wish to join the network. The
Coordinator displays the “Now Permit Joining with security key 02” message.
On the Router board, connect jumper SW4 in 1-2 position or press switch SW3 to reset
the board. The Router starts to scan channels and will send a request to join available
networks. The Coordinator displays the “Attempt to join with preconf. key” message
followed by the EUI address.
UM0450