Manual
NB IoT Smart Access LDK400
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Operator guidance
Operation is supported by the blue LED display, as well as by acoustic signals - a buzz sound
occurs when the lock has successfully received its command, and the lever handle can then be
pulled down to unlock the door.
LED light display
The NB IoT smart lock LDK400 has a blue LED light built in.
There are only 2 different status offered by the LED lights as follow;
1.Flashing blue - lock is awake (after wake-up button is pressed or new batteries inserted) and
is connecting to the network (new batteries) or awaiting a command such as an unlock
command.
2. Solid blue light - lock has successfully received an authorized unlock command, and is now
unlocked, so you can pull handle down to unlock.
Information on unlocking
To unlock the lock, please follow the instructions below;
1. Hit unlock button on the app (follow instructions on the app, which says that the unlock
command has been sent, and you should touch NB IoT logo to wake up the lock to unlock
it).
2. Touch NB IoT logo to wake-up lock.
2. Blue light flashes whilst unlock command is finalized
3. A buzz noise occurs, blue lights stop flashing and stays on.
4. Pull handle down to unlock.
There is a pause of a few seconds between pressing the wake-up button and the lock making
the buzz noise/flashing blue light indicating the handle is ready to be pulled down and lock
opened.
When unlocking with NFC (NFC phones and tokens) there should not be any delay in the lock
being ready to be opened by pulling the handle down. NFC phones and tokens must be held
within 4 centimeters from the NB IoT logo.
Time Zones
The NB IoT smart locks use local internet time, which can be set when the locks are first set-up
and commissioned by local distributors. Locks can be programmed to work for a minimal 30
minute timeslot. When the programmed time for the digital keys expires, the unlock icon will
disappear from the digital keys app.
NFC Tokens/cards
The NB IoT smart locks only work with special Digital Keys NFC cards/tokens. The product will
not work with any NFC cards bought online from third parties, or from non-certified NB IoT smart
lock re-sellers. 2 NFC tokens are provided in every pack. Please contact Digital Keys or your
local distributor/re-seller if you require more keycards/tokens.
Battery replacement
1. Loosen the small screw on the bottom of the black cover on the back of the lock, with a
chuck/allen key