I-Key Security Electronic Access Switch0 pages

This information is for guidance only and is
not intended to form the basis for contract.
All dimensions in mm.

Security Electronic Access Switch
I-KEY
Publication Number: PB191/0412
System Explanation
The Dewhurst I-KEY Security Access Switch is a general purpose
security module. It uses iButton type touch memories to identify
the keys. If a predefined key touches on the stainless steel probe,
I-KEY shorts the relay contacts for five seconds and leaves the
contacts open after this period. I-KEY warns the user with visual
and auditory ways with on-board beeper and in-probe LED ring.
I-KEY can be easily programmed with on-board pushbuttons. The end users can create their own MASTER KEY to
record a new key to the module memory.
Installing the Module
Apply 24V d.c. current on the POWER terminal of module. You should hear a BEEP sound and RED colour on the probe
when you energise the module. Operation voltage has to be between 18-28V d.c. Please do not exceed this limit.
Clearing I-KEY Memory (Memory Reset)
Press and hold the REC + DEL buttons for 3 seconds.
Recording a New Key into I-KEY Memory
Click on the REC button on the module. You will hear a beep sound and probe colour will blink repeatedly in yellow
and then in green colours. In this period, you can touch the new keys, which you want to add into the I-KEY memory.
Module will exit from the recording mode if you do not touch any key on the probe in five seconds.
Creating a MASTER KEY
I-KEY can be put in LATCHING MODE only with a “MASTER RECORD KEY”
To create a master key, follow the below steps:
1.t Power ON I-KEY; you will hear a beep sound and probe colour will be solid RED
2.t Press and hold the REC button
3.t Without releasing the REC button, touch an I-KEY-FOB on the probe and release the REC button. You will see that
the probe illumination is OFF
4.t Release I-KEY-FOB; wait for 5 seconds until probe colour is RED
Now we have a MASTER RECORD FOB
To enter Latching Mode, touch MASTER RECORD FOB on probe and wait for 5 seconds until you hear the LONG beep
sound. I-KEY will enter into Latching Mode and will exit from this mode only if:
- The probe is touched by a MASTER RECORD FOB
- The REC or DEL key is pressed
- The probe is touched by a previously recorded key
Using MASTER KEY to record a new key into I-KEY Memory
Touch the MASTER KEY into the probe. You will hear a beep sound and probe colour will blink repeatedly in yellow
and then in green colours. In this period, you can touch the new keys, which you want to add into the I-KEY memory.
Module will exit from the recording mode if you do not touch any key on the probe in five seconds.
Deleting a Previously added Key from I-KEY Memory
Click on the DEL button on the module. You will hear a beep sound and probe colour will blink repeatedly in yellow
and then in red colours. In this period, you can touch the previously added keys to remove from the I-KEY memory.
Module will exit from the deleting mode if you do not touch any key on the probe for five seconds.
NOTE: I-KEY is capable of storing 512 different keys. When the memory is full, you will hear a long warning beep.

Dewhurst UK Manufacturing Ltd - Unit 9, Hampton Business Park - Feltham - TW13 6DB - UK
Tel: +44 (0)20 8744 8200 - Fax: +44 (0)20 8744 8299 - Email: info@dewhurst.co.uk - www.dewhurst.co.uk
This information is for guidance only and does not form the basis for contract - Dimensions in mm