Mustek PP3000 Manual de usuario descargar pdf (Pagina 51)

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PST-7000 series user’s manual – USING THE PST SYSTEM

6 Position Key-Lock

This keyboard has a six position key switch which itself may be programmed

so that as the position is changed with a key so the key switch reports its own position

(adjustable inter position time delays are programmed in). Further more, an enquiry

code from the host will cause the key switch to report its current position.

This 6 position key switch effectively provides a multi-layer capability to the

keyboard in that each position of the key can define separate key sequence for each

key. This gives rise to the concept of pages, so that the KB112 can be said to have 5

pages of 112 key definitions per page, this means that there are 560 possible key

definitions, and KB136 has 5 pages of 51 key definitions per page plus the 2 page

independent programmable keys.

There are 4 keys supplied with each keyboard and the lock is so designed that

certain keys may only be turned to certain positions. This architecture is similar to that

found in many high end ECR systems, so it is not surprising that the naming

conventions have been borrowed as well.

The keys are named: PRG, REG, Z, GT.

The switch positions are named: LP, LCK, L1, L2, L3, L4. Among these, the

position LCK marked as “ ”

The available positions for each key type are listed in the table below of this

page and are graphically illustrated in Fig. 4-6.

ü= access û= no access

PRG REG Z GT

üü ûû ûû ûû

LCK

üü üü üü üü

üü ûû üü üü

ûû ûû ûû üü

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Mustek PP3000 Manual de usuario Pagina 51