Karel MS48, Installation & Maintenance Manual

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Karel MS48 Installation & Maintenance Guide
Edition 3.2
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III. SOFTWARE
MS48 system is a Stored Program Controlled (SPC) system. It has a
microprocessor, which controls the operation of the system; and an eprom that
stores the software of the system. All the default system and extension / line
parameters are stored in the EPROM.
Though MS48 is a small capacity system, the software is designed to provide a full
feature system. There are three categories for the features of the system:
1) User features,
2) Operator features,
3) Programs.
User features are the software facilities, which may be activated by any user of the
system.
Operator features are the software facilities, which may be activated only by the
operator of the system. The operator is the first extension of the system, i.e. the
extension who has the physical access code “
11 ” or “ 111 ” depending on the
capacity of the system.
Programs are the codes that may be entered only either by the system supervisor
or the operator after the system is put in programming mode by the system
supervisor. By default, the operator is the system supervisor. By programming,
most of the parameters, which control the operation of the system, can be
changed.
The software facilities are given in the relevant guides together with their details.