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LOCKED TO SHIP - CODE PROTECT IS ON!

Digi-Lock
(c)1999 Creative Control Concepts

The Digi-Lock allows users to add iButton security to their home automation systems or it
can be used standalone to trigger an electric latch.

The Digi-Lock supports up to 7 unique iButtons which each have a unique ID. When an iButton
is inserted into the target, the Digi-Lock will compare its ID with those stored in EEPROM.
If a match is found, the IDOK line is brought high along with the appropriate ID# line. This
allows users to simply respond to ANY valid ID or you can react to a unique ID by using the
individual ID lines.

The DigiLock is quite fault tolerant when reading data from the microLan. se-ri-@l input routines
use multi-sampling of each bit to ensure data integrity. Dallas' CRC checking is implemented to
ensure the received data is valid and if the CRC check fails once, the device is immediately
read again to try and get valid data in case the first read error was due to intermittent contact
with the reader probe.

A bi-color LED is used to display status as follows:

Config Mode:

Solid RED - Waiting for ID to learn
Blink RED (5 secs) - Receive Error (Bad CRC) - Try Again
Solid GREEN (5 secs) - ID read okay and stored
Blink GREEN - Max # of IDs stored

Operating:

No LED - Waiting for LED
Solid RED (10 secs) - Bad ID
Blink RED (3 secs) - Receive Error (Bad CRC)
Solid GREEN - ID Match (for length of pulse)

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