User's Manual

51
ASSA ABLOY Hospitality
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8. Power loss and hardware failure
This section describes the mechanisms in place to recover from power loss as well as
instructions to replace devices in case of hardware failure.
8.1 Lock electronics
If the lock electronics (not the online EN radio) have gone bad, they can be replaced
with no interruption to the online network. Replace the lock electronics and put the
lock back together. If power was temporarily disconnected from the EN, it will rejoin
its parent on power up.
8.2 Endnode
If an EN loses power - typically due to a dead battery or battery replacement -
it will rejoin its parent on power up using an orphan join. The radio ID is already in
the appropriate RT and so it is allowed to join again without requiring a technician to
re-open the RT.
If an EN needs to be replaced:
1. Make a leave on the old EN: right click on the EN in SysMon's Online Network
view and choose Leave Network. In this way the old EN will deregister from
the parent.
Note: Due to a bug in BeeStack radio nodes of versions before 1.0.49, do not
use the Leave Network command for these older versions.
2. Important: Wait for 40 seconds to avoid confusing the parent from which the
EN has deregistered.
3. Make Permit Joining on the RT to which the EN should be connected. This can
be done either by right clicking on the RT in SysMon's Online Network view
and choosing Permit Joining, or by pressing the F1 button on the RT.
4. Once Permit Joining has been made on the RT, install the new EN device in
the lock. When it is powered up, present a Discovery card at the lock (see
chapter 5 Issuing a ZigBee configuration card); the lock will chirp once and/or
show a green LED signal, depending on lock model. The EN will announce itself
to the server.
5. After the EN has joined the network, make Forbid Joining on the RT by right
clicking on the RT in SysMon’s Online Network view, or by pressing the F1
button on the RT.