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ASC - GREECE,
PART III
SYS/84-03-10
SYSTEM DESCRIPTION
Page
ASC GREECE
AUTOMATIC MESSAGE AND DATA SWITCHING CENTRE
DOC. NO. ASC/8020/PRP/001 ISSUE 1
PART III
SYSTEM DESCRIPTION
SUBMITTED TO: HELLENIC REPUBLIC
MINISTRY OF COMMUNICATION
CIVIL AVIATION AUTHORITY
SUPPLY DIVISION
1, VASILEOS GEORGIOU AVENUE,
HELLINICON, ATHENS
IN RESPONSE TO: TENDER NO. X22/1983
PREPARED BY: CHRISTIAN ROVSING A/S
SYSTEMS DIVISION
LAUTRUPVANG 2
2750 BALLERUP
DENMARK
PRINCIPLE CONTACT: Gert Jensen, Systems Division
Manager
Telex Denmark 35111 cr dk
Telephone: 02 65 11 44
…0e…c…0f… Christian Rovsin A/S - 1984
This document contains information proprietary to Christian
Rovsing A/S. The information, whether in the form of
text, schematics, tables, drawings or illustrations,
mus not be duplicated or used for purposes other than
evaluation, or disclosed outside the recipient company
or organisation without the prior, written permission
of Christian Rovsing A/S.
This restriction does not limit the recipient's right
to useinformation contained in the document if such
information is received from another source without
restriction, provided such source is not in breach
of an obligation of confidentiality towards Christian
Rovsing A/S.
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
Page
1 SYSTEM DESCRIPTION .............................
2
2 FUNCTIONAL CAPABILITIES .......................
10
2.1 SYSTEM OVERVIEW ...........................
10
2.1.1 ASC Fuctions ......................... 11
2.1.2 Communications ........................
12
2.2 SYSTEM DESIGN CONSIDERATIONS ..............
13
2.3 HUMAN FACTORS CONSIDERATIONS ..............
17
2.3.1 Operations ........................... 17
2.3.2 Maintenance ...........................
17
3 HARDWARE .......................................
18
3.1 INTRODUCTION ...............................
18
3.1.1 Overview ...............................
19
3.1.2 ASC Systm ............................. 20
3.1.3 Potential ASC Maintenance System .......
24
3.2 CR80 PROCESSING ELEMENT ....................
26
3.2.1 The Processor Units (PU) ...............
26
3.2.2 The Channel Units (CU) ................ 27
3.2.3 Bus Structure ..........................
30
3.3 WATCHDOG COMPUTER ..........................
32
3.4 CR80 PACKAGING .............................
34
3.5 PERIPHERAL SYSTEMS .........................
38
3.5.1 TheDisc System ........................ 38
3.5.2 The Communication System ...............
40
3.5.2.1 C/AFTN Lines and Telex Accesses ....
40
3.5.2.2 CBI and CIDIN Lines ................
40
3.6 TERMINAL EQUIPMENT ........................ 41
3.6.1 Visual Display Units ...................
41
3.6.2 High Speed Printers BP 900 .............
41
3.6.3 Matrix Printer .........................
42
3.6.4 Papertape Reader and Punch .............
42
3.7 POWER SYTEM ............................... 43
…86…1 …02… …02… …02… …02…
1̲ ̲ ̲S̲Y̲S̲T̲E̲M̲ ̲D̲E̲S̲C̲R̲I̲P̲T̲I̲O̲N̲
According to the requirements expressed in the technical
specifications (part 3) the total ASC will be delivered
in the three phases. In addition a hardwae and software
maintenance system is offered as an option.
The physical configuration of the switch is illustrated
in figure 1-1.
the switch consist of the following components:
- ASC CR80 computer system with CPUs, Memory, Line
Interfaces, ptchpanel and Disc drives.
- Uninter optional uptable power system with frequency
and voltage-control, battery and generator.
- Visual display units for the operational and technical
control positions.
- Papertape reader and punch.
- High Sped printer.
The second phase would only require the following additions:
- 1 Crate for the additional line interfaces.
- Line interfaces for the specified number of CBI,
CBI/MET lines.
- Modems for the lines.
The third phase would requirethe following additions:
- Line interfaces for the specified number of CIDIN
lines.
- Modems for the lines.
The communication line configuration is defined in
the two figures 1-3 and 1-4. Figure 1-3 shows the required
lines for HCAA in the thee phases both initial e.g.
provided in the phases and as a possible maximum.
Figure 1-4 shows the actual number of lines and the
possible expansions based on the hardware connectivity
available in the phases. It must be noted that the
available maximum lin capacity is above the requirements
of HCAA.
The costing tables call for a tape system for the long
term (30 days) storage of messages; the system offer
a more modern cost effective solution, a dual set of
disc drive with removable disc cartridge, which can
contain messages for a longer time period than tape
and provide for direct access to the individual messages.
Should the customer desire a tape drive system, this
can be delivered instead.
Figure 1-1
ASC Configuration
The possible hardware and software maintanance system
can consist of the following as illustrated in figure
1-2:
- ASC Maintenance CR80 computer system with CPU,
Memory, Line inerfaces, and Disc drive.
- Visual display unit for the SW/HW maintenance control.
- Printer.
Figure 1-2
ASC HW/SW Maintenance System Configuration
The software for the ASC consists of the following
components in phase 1:
- XAMOS operating system.
- Application software for the Conventional AFTN
Switching function.
The oftware for phase 2 consists of the following additional
component:
- Application software for the CBI and CBI/MET chart
processing.
The phase 3 consists of the following component:
- Application software for the CIDIN packet switching
functin.
- Network management software for the CIDIN packet
switching.
The software configuration is described in details
in part II, chapter 2.2.
PHASE 1 PHASE 2 PHASE
3
Lines Required Initial Maximum Initial Maximum
Initia maximum
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
Conventional
AFTN lines 55 80
Telex accesses 8 12
CBI lines 4 18
CBI/MET lines 0 6
CIDIN lines 4 12
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
Figure 1-3 Required ASC Communication lines
Phase 1 Phase 2 Phase 3
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
Lines on ASC Initial Additional Initial Additional Initial Aditional
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
Conventional
AFTN lines 92 as required
Telex acceses
CBI lines 4 28 (1)
CBI/MET lines 0 60 (2)
CIDIN lines 24 (1)
4 56 (2)
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
(1) Based on a maximum speed of 4800 Baud per line.
(2) Based on a maximum speed of 1200 Baud per line.
(3) Capacity sharedbetween phase 2 & 3.
Figure 1-4Available ASC Communication Lines.
The additional lines are over and above the initial
lines. The additional lines are calculated based on
the hardware connectivity available in the phase.
