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CHAPTER 2 ND-70895 (E)
Page 6
Revision 1.0
SYSTEM OUTLINE
System Outline
2.2.1 Facilities
Each of the unit functions of the NEAX2400 IMX, such as switch control function, terminal control
function, etc., that can be controlled by the application of the computer is referred to as “facility”. The
facilities can be categorized in two kinds as per the operating pattern; one is “Provider Facility” and the
other is “Performer Facility”.
• Provider Facility
A facility of this kind is capable of communicating with one Application Program (AP) on the
computer, and executes start-up, etc. of an AP on the computer.
• Performer Facility
A facility of this kind is capable of communicating with plural application programs (AP) on the
computer. It is activated from each AP as the common facility and executes required processing in
accordance with the control information given from the AP.
Each of the main facilities is outlined in the following.
1. Provider Facilities
(a) Terminal Mode Set Facility (MSF)
With a specific key depressed on a terminal, this facility sets terminal mode. When terminal mode is
set by this facility, a communication path is set up between the terminal and the AP on the computer.
(Figure 2-2)
Figure 2-2 Concept of MSF
Note:
The external computer is referred to as the computer.
Key operation
Terminal (D
term
)
MSF
NEAX2400 IMX
AP
The Computer
(Setting of Communication Path)