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19. Jänner 2013

Teaching and Security

Validators are normally supplied ready taught from the factory. This section may be skipped unless the validators need to be re-taught a new note or currency. If you re-teach it is recommended that the old channel information is erased first, otherwise it will remain in the memory as a permitted face.

 

Erasing a Channel

If the validator has already been taught a new currency, reteaching it will not make it forget the old . In this case it is important to delete the old information in each channel. To erase a channel slide the Teach/Run switch to Teach. Select the channel to be erased by repeatedly pressing the select button. Now press and hold down the select button until the selected channel light goes off and comes back on. This will take approximately six seconds. If further channels need to be erased press the Red Select Button repeatedly until the correct channel is selected and then hold down the button as previously described. It is not possible to reverse the erase process!

 

Teaching

Before teaching the validator examine the list of approved currencies in the appendix. Some currencies are only approved to be taught on particular faces for security reasons. Currencies not on the list have not been subject to the same (if any) levels of testing as the approved currencies. Users should take particular care to satisfy themselves on the security of operation once the validator has been taught.

For teaching the validator must be powered up, VCOM must be present, and the Inhibit signals must be held LOW.

You will require at least fifteen examples of the new note, and preferably twenty (some currencies may require more, particularly if there is more than one organisation printing the notes). Teach note selection is very important to obtain a good acceptance rate. As a guide your teach notes should contain at least five new notes, the rest should be 'typical' notes that are in circulation.

The following notes should not be used for teaching:-

 

Do not use very old or soiled notes for teaching.

notes that have parts missing or large tears in them.

notes that have been repaired with any kind of adhesive tape.

notes with corners folded over

Sort the Teach notes so that they are all the same way up and the same way around. Do not mix different designs of the same denomination e.g. English and Scottish notes. They should be taught as separate faces in the same channel

Remember that the quality of teaching notes will affect the accept rate of notes. A well taught unit will have a very high acceptance rate.

 

Selecting a Channel

Locate the slide switch marked TEACH/RUN

Locate the Push button marked SELECT CHANNEL/SELECT SECURITY

Locate the four channel LED's marked 1 to 4

Ensure that the Green Power On light is illuminated

The Smiley can accept up to four different denomination of notes, i.e. £5, £10, £20, £50

For this exercise we will assume that a new £50 has been introduced. Normally the unit is pretaught with the lowest denomination in channel 1, the others in ascending order. So a £50 will be recognised as channel 4. We wish to teach the new £50 alongside the old £50 in channel 4.

Slide the Teach/Run switch up to the teach position

Repeatedly press the red Select Channel button until the channel 4 LED is ON.

 

Insert the teach notes into the Smiley, one after the other. Wait until one note has left the unit before trying to insert the next note. Insert the notes reasonably straight and central.

 

Do not deliberately insert notes that go up the sides of the note path or are badly twisted. Make sure that none of the teach notes have corners or edges folded over. This may unnecessarily distort the note definition and reduce the effectiveness of the Smiley.

Re insert the teach notes in this same orientation at least twice. When you have done this press the Select Button. The channel LED will blink once to confirm that the note data has been stored. If other faces of this note need to be recognised, change the orientation of the teach notes and insert the notes in the manner just described. Remember to press the Select button at the end of each face taught.

When you have taught the desired faces of the note, slide the Teach/Run switch to the RUN position. The channel lights will now indicate the security setting for the channel you have just taught, and after five seconds the LED will flash four times indicating teaching is completed. If you need to change the security settings see the next section which explains the process.

 

Note: While teach notes are being inserted the Smiley performs a very elementary test to look for operator errors. The Smiley checks the length of the notes and also does a crude test to see if subsequent notes are similar to the first teach note that was inserted. This is not fool-proof, its effectiveness may depend upon the currency being taught.

If the Smiley sees a note that it does not believe to be sufficiently similar it will flash all the channel lights momentarily and ignore the note for teaching purposes. If notes are inserted too quickly the channel lights will flash momentarily and the note data rejected. (Early units returned the problem note back to the operator).

For most currency sets this method will give good results. For some currencies you may notice that the four LEDs flash frequently when teaching. This is because certain batches of notes may have very different characteristics, and in these cases it causes the validator to reject them as not belonging to the same set as the first teach note. This can be for many reasons, but one common one is a change in characteristics as the notes age. If this is seen to be happening when teaching an alternative method can be used that will improve acceptance rates.

Sort the notes into two sets, one with new and little used notes, the other with old and worn notes. Teach the sets into the same channel, but as different faces. This will result in twice as many faces being taught into a channel, but will give better acceptance rates due to the validator not rejecting notes during teaching.

 

 

Security Levels

The Smiley has three security level options. The security levels affect the severity of note testing and may be independently set for each of the four channels. The higher the level of security the more closely the validation is examined. The security levels may be checked and changed if necessary whenever the validator is switched from a selected channel in Teach mode to Run mode. When the switch is slid from Teach to Run one of the four Red LED’s will light, indicating the current security level for the channel that has just been taught. The indications are:

LED 1 Security level one (lowest security).

LED 2 Security level two (recommended for most applications).

LED 3 Security level three (highest security).

LED 4 Inhibit. No notes will be accepted on this channel.

 

If the Red Select Button is pressed after the validator has been switched from Teach mode into Run mode then the LED’s will be seen to light in turn. Leave the light on that indicates the level you want applied. This must be done within 5 seconds of the unit being switched into Run. The light selected will then flash four times to indicate the operation is complete. It is not necessary to re-teach the validator to change the security levels - just go into teach mode, select the channel required, switch to Run and reselect the security level.

 

 

Channel Five (Emergency Channel) Teaching

When selecting the channel to be taught it will be observed that the selection after channel four makes all the red lights come on. This is channel five and it is for emergency use only. Channel five is used for teaching the validator to recognise and reject any new fraud that the validator has previously not been able to detect. Channel five is always checked first by the validator to see if a presented note has a match there. This is a short term solution, and the factory should be informed of the circumstances as soon as possible.

The only operating difference with channel 5 is that the security levels work in reverse. The lower the security setting on channel 5 the more likely the Smiley is to recognise the note and reject it.

 

 

Code Lock

Validators produced since October 1995 (Serial number 0102000) have the capability for a three digit code lock to be activated, preventing unauthorised teaching of the validator. If you do not have the code lock facility activated and do not wish to use it you may skip the Code Lock sections.

 

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