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Notes: BURMA - AMSS, PART II
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BURMA AMSS - PART
II
SYS/83-12-07
TECHNICAL PROPOSAL
Page
5 SYSTEM PERFORMANCE .............................
5̲ ̲ ̲S̲Y̲S̲T̲E̲M̲ ̲P̲E̲R̲F̲O̲R̲M̲A̲N̲C̲E̲
An estimate of the work load on the proposed Burmese
AFTN has been calculated based on the transaction volume
figures specified in the ICAO Specification.
The AFTN has been designed to effectively and efficiently
handle the load of the system.
No. of Mesg. Disk acc. Exec. instr.
x 1000
̲ ̲ ̲ ̲ ̲ ̲ ̲m̲e̲s̲g̲.̲ ̲ ̲ ̲ ̲l̲e̲n̲g̲t̲h̲ ̲ ̲ ̲p̲e̲r̲ ̲m̲e̲s̲g̲.̲ ̲ ̲t̲o̲t̲.̲ ̲ ̲p̲e̲r̲.̲ ̲m̲e̲s̲g̲.̲
̲ ̲ ̲ ̲t̲o̲t̲a̲l̲
Per
peak 300 9 x 10…0e…4…0f… 10 3000 10 3000
hour
Per
peak
second 0.42 4.17
4.17
The peak second traffic has been estimated to 5 times
average traffinc in a peak hour.
The available resources are roughly 10 to 100 times
faster than the required regarding disk access and
instruction rate.
6 AVAILABILITY REQUIRMENTS .......................
6.1 RECOVERY PROCEDURES ........................
6.2 FALLBACK PROCEDURES ........................
6.3 RECOVERY TIMES .............................
6.4 OVERALL SYSTEM AVAILABILITY ................
6.5 MEAN-TIME-BETWEEN-FAILURE (MTBF) ...........
6.6 MEAN-TIME-TO REPAIR (MTTR) .................
6̲ ̲ ̲A̲V̲A̲I̲L̲A̲B̲I̲L̲I̲T̲Y̲ ̲R̲E̲Q̲U̲I̲R̲E̲M̲N̲E̲T̲S̲
The availability of the proposed equipment is very
high due to a high reliability of individual system
elements.
The high system availability has been achieved by the
use of highly reliable modules.
The reliability criteria imposed on the computer systems
have been evaluated and the proposed hardware/software
operational system analysed to determine the degree
of availability and data integrity provided.
The availability predictions are made in accordance
with system reliability models and block diagrams corresponding
to the proposed configuration. This procedure involves
the use of module level and processor unit level failure
rates, or MTBF, (mean time between failures) and MTTR
(meantime to repair); these factors are used in conjunction
with a realistic modeling of the configuration to arrive
at system level MTBF and availability.
Tabulated results of the analysis are presented including
the reliability factors: system MTBF and repair time
MTTR.
The basic elements of the proposed system architecture
are constituted by standard CR80 units. Reliability
and maintainability engineering was a significant factor
in guiding the development of the CR80.
The CR80 architecture is designed with a capability
to achieve a highly reliable computer system in a cost-effective
way. It provides a reliable set of services to the
users of the system because it may be customized to
the actual availability requirements. The CR80 fault
tolerant computers are designed to avoid single point
errors of all critical system elements by provision
of redundancy paths, multi-processor capabilities and
dual power supplies in systems with unusually high
availability requirements.
The architecture reflects the fact that the reliability
of peripheral devices is lower than that of the associated
CR80 device controllers. This applies equally well
to communication lines where modems are used as part
of the transmision media. Thus, the peripheral devices,
modems, communication line, etc., impact the system
availability much more than the corresponding device
controllers.
To assure this very highly reliable product, several
criteria were also introduced on the module level:
- An extensive use of hi-rel, mil-spec components,
ICs are tested to the requirements of MIL-STD 883
level B or similar
- All hardware is designed in accordance with the
general CR80 H/W design principles. These include
derating specification, which greatly enhance the
reliability and reduce the sensibility to parameter
variations
- Critical modules feature a Built-In Test (BIT)
capability as well as a display of the main states
of the internal process by Light Emitting Diodes
on the module front plate. This greatly improves
module maintainability, as it provides debugging
and trouble shooting methods, which reduce the
repair time
- A high quality production line, which includes
high quality soldering, inspection, burn-in and
an extensive automatic functional test
- Software reliability is another aspect which is
incorporated in achieving high over all availability
- Data has been replicated on mirrored disks in order
to increase system availability
- Facilities are provided to perform quick reconfiguration
in case of errors
- Extensive M & D, maintenance and diagnostic software
can be used to minimize down times.
6.1 R̲E̲C̲O̲V̲E̲R̲Y̲ ̲P̲R̲O̲C̲E̲D̲U̲R̲E̲S̲
Flexible variation in the size and structure of the
CR80 system used for the AMSS are permitted by the
unusual degree of hardware and software modularity.
The hardware essentially consists of fast transfer
buses joined to each other by adapters which allow
units on one bus to access those on another. Dualization
at the internal level and multiple redundancy at the
system level provide a CR80 hardware architecture which
is exploited by the XAMOS software operating system
and programs to survive operational failure of individual
components. The mirrored disks in the AMSS is an example
of this.
Reliability, which is increasingly becoming of concern
in real-time and distributed network applications,
is achieved in the CR80 computer systems by applying
unique architectural concepts. Fault tolerance and
backup are achieved through a redundance scheme without
preassignment of system functions to specific processors.
This is in marked contrast to the more common rigid
dualized configurations often encountered in dedicated
applications with on-line master/slave arrangements,
or off-line backup with switchover facility. The Line
Termination Units, LTU in the CU can substitute each
other, because software is down line loaded from the
PU.
Performance degradation may result from the occurence
of a failure if it happens durings peak load, because
systems resources are used to recover from errors.
As an example, consider the mirrored disc. If a head
crash occurs on one of the discs, then a fresh blank
disc must be inserted, and all information must be
moved from the non-failed disc to the fresh disc. This
requires more disc activity than normal operational
use, so it might affect performance levels during peak
load situations. Of course the operator can choose
to wait with disc restoration till after peak load,
but this must be considered unrecommendable, because
the system is not able to recover from the next failure.
The system operator can enable/disable various devices
and he may perform physical reconfiguration by removing/replacing
the various hardware modules. This can be done without
taking the power off the system.
6.2 F̲A̲L̲L̲B̲A̲C̲K̲ ̲P̲R̲O̲C̲E̲D̲U̲R̲E̲S̲
Fallback procedures have been implemented at the hardware
and system software level. Logical addressing is used
throughout the system, which make it possible to access
the system from an alternative terminal or print out
on an alternative hardcopy device subject to certain
constraints.
In excess of the standard fall back procedures implemented
in hardware and system software, like the mirrored
disc concept, procedural fall back procedures are implemented
and enforced by the system. The teleprinters normally
attached to the system, can be used as stand alone
services in case of system breakdown.
6.3 R̲E̲C̲O̲V̲E̲R̲Y̲ ̲T̲I̲M̲E̲S̲
Reintroducing modules as part of restoring a failed
system under system operator control, will be dominated
by operator reaction time, but good procedural rules
and guidelines can minimize the time required.
6.4 O̲V̲E̲R̲A̲L̲L̲ ̲S̲Y̲S̲T̲E̲M̲ ̲A̲V̲A̲I̲L̲A̲B̲I̲L̲I̲T̲Y̲
The AMSS system has been designed with the objective
of providing an extremely high available system.
The computer system is partitioned into system elements
and the model used for reliability and availability
prediction shows how the proposed quipment provides
a high degree of reliability.
Figure 6.4-1
Reliability Model for AMSS
Terminal Position
The mirrored set of disks which have a mean time between
failures each of 250 hours, will when used specified
have a combined mean time between failure of approximately
500 hours.
The combined failure rate for the total system is:
̲ ̲1̲ ̲ ̲ + ̲1̲ ̲ + ̲1̲ ̲ = ̲1̲ ̲
1832 443 500 208
The equivalent availability is:
99,50%
======
For safety reasons MTTR figures used for a calculation
are very conservative, typically 60 minutes, but a
much better result can be obtained when operators and
maintenance people are carefully instructed and trained.
The following figure 6.6-1 shows a typical fault isolation
and replacement sequence, when skilled people are used.
The reliability characteristics for the system are
stated in numerical terms by a mathematical model.
The supporting detailed prediction is presented in
this chapter. The system model is partitioned into
modular units and system elements that reflect the
redundancy of the configuration; it accounts for all
interconnections and switching points. The MTBF and
MTTR for the individual elements used in the calculations
were obtained from experience with similar equipment
on other programs.
The equipment has been partitioned and functions apportioned,
so that system elements can have only two states -
operable or failed. System elements are essentially
stand-alone and free of chain failures.
Careful attention has been paid in the design to eliminate
series risk elements. Redundant units are repairable
without interruption of service. Maintenance and reconfiguration
are possible without compromising system performance.
The primary source selected for authenticated reliability
data and predictions is the MIL-HDBK-217. The failure
rate data are primarily obtained from experience from
previous programs and continously revised as part of
the maintenance program on concurrent programs.
The reliability model which applies to the proposed
configurations is identified in the figure shown in
the following.
The model that has been calculated covers the basic
operational system. In order to improve availability
for the minimal system and the Communication Handling
system to an even higher degree, you can ensure higher
spare part availability on important modules, which
can be easily introduced as part of a fall back procedure.
6.5 M̲E̲A̲N̲-̲T̲I̲M̲E̲-̲B̲E̲T̲W̲E̲E̲N̲-̲F̲A̲I̲L̲U̲R̲E̲ ̲(̲M̲T̲B̲F̲)̲
The high reliability of the proposed equipment is achieved
through use of proven failure rate equipment similar
to that supplied for other programs.
Early in the design phase, a major objective for each
module is to achieve reliable performance. CR80 modules
make extensive use of carefully chosen components;
most of the IC…08…s are tested to the requirement of MIL-STD
883 level B.
The inverse of MTBF representing failure rate which
applies to system elements and modules is listed.
The MTBF data has been derived from reliability data
maintained on similar programs. Inherent MTBF values
are in general derived from the reliability predictions
accomplished in accordance with the U.S. MIL-HDBK-217
"Reliable Predictions of Electroic Equipment".
Failure rate data for terminal and peripheral equipment
is generally provided by the vendor in accordance with
the subcontract specifications:
…06…1 …02… …02… …02… …02… …02… …02… …02… …02… …02… …02…
Module Item Description MTBF FPMH MTTR
N̲o̲.̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲(̲h̲r̲s̲)̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲(̲m̲i̲n̲u̲t̲e̲s̲)̲
8002 CPU, SCM 36500 27.4 30
8003 CPU, CACHE 26100 38.3 30
8009 EPM
172400
5.8 30
8013 EPROM 91700 10.9 30
8016 RAM 128K/64K 17000/29600
58.8/33.8 30
8020 MAP 19400 51.6 30
8021 STI 32800 30.5 30
8037 UNIVAC I/F 33200 30.1 30
8039 IBM CH, I/F 32400 30.9 30
8044 DISC CTRL
DUAL/SINGLE 30200/39400
33.1/25.4 30
8045 TAPE CTRL 16K 35700 28.0 30
8046 DUAL PAR.CTRL 35700 28.0 30
8047 ST.FD.CTRL
DUAL/SINGLE 59500/84700
16.8/11.5 30
8050 POWER SUPPLY 26800 37.3 30
8055 MBT
285700
3.5 30
8059 MBE 10000000
0.1 30
8066 LTU DUAL/SINGLE 27600/45000
36.9/22.2 30
8070 CSA
769000
1.3 30
8071 MIA 85500 11.7 30
8072 SBA 90100 11.1 30
8073 TIA
117600
8
5 30
8074 EPA
256000
3.9 30
8078 IBA 21600 46.2 30
8079 UIA 15600 64.0 30
8081 CIA A & B 71400 14.0 30
8082 LIA-N 10000000
0.1 30
8083 LIA-S (Switch +
Common) 534759/3571428 1.87/0.28 30
8084 DCA 46900 21.3 30
8085 TCA
128200
7.8 30
Module Item Description MTBF FPMH MTTR
N̲o̲.̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲(̲h̲r̲s̲)̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲(̲m̲i̲n̲u̲t̲e̲s̲)̲
8086 PCA 185200 5.4 30
8087 SFA 10000000 0.1 30
8088 EIA A & B 113600 8.8 30
8106 MAINS FILTER
DISTRIBUTION 625000 1.6 30
8115 Minicrate 26300 38 60
8125/PC PU-CRATE 200000 5.0 60
8124/AB CU-CRATE 703630 1.4 60
Peripheral Item Description MTBF FPMH MTTR
N̲o̲.̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲(̲h̲r̲s̲)̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲(̲m̲i̲n̲u̲t̲e̲s̲)̲
8300/--- DISC DRIVE,
SMD, 40-300MB 4000 250.0 90
8301/--- DISC DRIVE,
CMD (16-48)+16MB 4000 250.0 90
8302/--- DISC DRIVE, MMD,
12-80MB 8000 125.0 60
8307/--- FLOPPY DRIVE,
dual/single 8000 125.0 30
sided
8320/001 TAPE STATION,
Pertec FT 8000 8000 125.0 60
8320/002 TAPE STATION,
Pertec FT 9000 2500 400.0 60
6.6 M̲E̲A̲N̲-̲T̲I̲M̲E̲-̲T̲O̲ ̲R̲E̲P̲A̲I̲R̲ ̲(̲M̲T̲T̲R̲)̲
The proposed system is designed for ease of maintenance.
The system is built of modules each comprising a complete
well-defined function. Replacement of modular units
result in minimum repair time. Software and firmware
diagnostic routines rapidly isolate faulty modules;
repair can then be performed by semi-skilled maintenance
personnel and usually without special tools.
The proposed system, composed of redundant elements,
meets the objective of ease of maintenance. All units
and system elements are of a modular construction so
that any defective module can be isolated and replaced
in a minimum amount of time.
In the design of the System Elements, careful attention
was given to ease of maintenance without requiring
special tools, so that the maintenance could be performed
by semi-skilled maintenance personnel.
Fault detection and isolation to the system element,
in som cases module level, is inherent in the software
residing in the various processors. In peripheral devices,
the fault detection and isolation is accomplished by
a combination of on-line, software, built-in test,
and operator observations.
In case the correct function of the system is extremely
critical, the Processors will have built-in, on-line,
diagnostic programs. Even though the Processors are
highly reliable, failures can occur; usage of the off-line
diagnostics minimizes the downtime for a system.
An off-line diagnostics software package can be employed
to ease the diagnostics in case of error. Normally,
this software package is stored on disc. After initiation,
the program will test all modules forming the system
and print the name and address of the erronous module
on the operator…08…s console. Having replaced the erronious
module, the Processor is ready for operation again.
The operator might, if necessary, run the off-line
diagnostics program once more to verify that the system
is now working without errors.
The command interpreter module of the diagnostic package
enables the operator to initiate any or all of the
test programs for the specific subsystem off-line,
to assist in trouble shooting and to verify the repair.
Examples of modules tested are LTU…08…s, CPU and RAM modules,
etc.
The diagnostic package will also assist in fault isolation
of the peripherals. However, common and special test
equipment might have to be used to isolate the faulty
module.
The Mean-Time-To-Repair for the equipment is derived
from two sources. The first is actual experience data
on the equipment proposed for the system. The other
source is from predictions generated in accordance
with MIL-HDBK-472 or similar documents. As an example,
the MTTR for the Disk Storage Unit was derived from
repair times measured by the supplier. The repair times
of other units were derived by a time-line analysis
of the tasks associated with fault detection, isolation,
repair, and verification. These repair times were weighted
by the MTBF of each module to derive the unit MTTR.
The calculation of the Mean-Time-To-Repair (MTTR) is
done by weighting the individual module repair times
by the MTBF of the individual module. The MTTRs of
the major CR80 equipments are presented.
The predicted MTTR values are from experience with
modules of other programs. The predicted MTTR assumes
that all tools, repair parts, manpower, etc., required
for maintenance are continuously available.
Figure 6.6-1
Typical Fault Isolation and…01…Replacement Sequence
7 INSTALLATION ..................................
7.1 EQUIPMENT INSTALLATION ....................
7.2 REQUIREMENT ANALYSIS ......................
7.3 INSTALLATION PLANNING .....................
7.3.1 Site Survey ...........................
7.3.2 Site Preparation Requirements .........
7.3.3 Equipment Installation Drawings .......
7.4 TRANSPORTATION OF THE EQUIPMENT ...........
7.5 SITE INSTALLATION .........................
7 ̲ ̲I̲N̲S̲T̲A̲L̲L̲A̲T̲I̲O̲N̲
7.1 E̲Q̲U̲I̲P̲M̲E̲N̲T̲ ̲I̲N̲S̲T̲A̲L̲L̲A̲T̲I̲O̲N̲
7.2 R̲E̲Q̲U̲I̲R̲E̲M̲E̲N̲T̲ ̲A̲N̲A̲L̲Y̲S̲I̲S̲
a) Contractor shall make the following major deliveries
to customer:
- Site Preparation Requirements
(Site Facility Plan)
- Equipment Installation Drawings
- Delivery and Installation of Equipment
b) Site Preparation Requirements (SPR) shall specify
the extent of site preparation regarding structural
and Ambient requirements customer must undertake
before equipment can be installed. In order to
generate the SPR Contractor will carry out a Site
Survey at the site.
c) The equipment installation drawings (EID) shall
show how the proposed equipment is installed and
interconnected.
d) Delivery and installation of equipment will be
performed in accordance with the master schedule
after Contractor has verified that the site has
been prepared in accordance with the Site Preparation
Requirements.
7.3 I̲N̲S̲T̲A̲L̲L̲A̲T̲I̲O̲N̲ ̲P̲L̲A̲N̲N̲I̲N̲G̲
a) The planning of the installation will start immediately
after contract award. The time span from contract
award to completion of installation can be divided
in two major phases:
1) Site Preparation
2) Site Installation
b) The main activities in phase 1 are proposed as
follows:
1) Site survey within five months after contract
award.
2) Preparation and delivery of site preparation
requirements 3 months prior to on-site installation.
3) Preparation and delivery of equipment installation
drawings one month prior to on-site installation.
4) Site readiness verification prior to start
of equipment installation.
The main activities in phase 2 are:
5) Transportation to site.
6) On-site installation.
c) A more detailed description of the phase 1 and
2 activities is presented in the following sections.
7.3.1 S̲i̲t̲e̲ ̲S̲u̲r̲v̲e̲y̲
a) Contractor will perform a site survey with customer
participation at the site. The purpose of the survey
will be to gather information for the preparation
of site preparation requirements and plans for
on-site integration and installation.
b) An important task to be performed in conjunction
with customer during the survey meeting is to determine
the layout of the equipment room, and the location
of the terminal devices.
c) Building schematics and civil engineering drawings
are to be used for the survey and should be handed
over to contractor at start of the survey.
7.3.2 S̲i̲t̲e̲ ̲P̲r̲e̲p̲a̲r̲a̲t̲i̲o̲n̲ ̲R̲e̲q̲u̲i̲r̲e̲m̲e̲n̲t̲s̲
a) Contractor will generate Site Preparation Requirements
(SPR) concerning the preparation of the site for
installation of the proposed equipment. The SPR
will be submitted to Customer for approval 3 months
prior to start of installation.
b) The SPR will be based on the site data collected
during the site survey, the equipment room layout
and the physical characteristics of the proposed
equipment.
c) The SPR will contain requirements to access, space,
power, power distribution, quantity and location
of power outlets, cable ducting, etc.
7.3.3 E̲q̲u̲i̲p̲m̲e̲n̲t̲ ̲I̲n̲s̲t̲a̲l̲l̲a̲t̲i̲o̲n̲ ̲D̲r̲a̲w̲i̲n̲g̲s̲
a) Contractor will deliver equipment installation
drawings to Customer for approval 1 month prior
to start of installation.
b) The approved installation drawings will be used
for the installation of the proposed equipment
on the site.
c) The equipment installation drawings will be based
on the approved site preparation requirements,
the hardware configuration and the equipment characteristics.
d) The drawings will show how the proposed equipment
is to be installed and integrated.
7.4 T̲R̲A̲N̲S̲P̲O̲R̲T̲A̲T̲I̲O̲N̲ ̲O̲F̲ ̲T̲H̲E̲ ̲E̲Q̲U̲I̲P̲M̲E̲N̲T̲
a) The delivery of equipment will follow the master
schedule. Actual shipping date is selected to be
in accordance with the readiness of site and time
for transportation. The equipment will be delivered
F.O.B. Christian Rovsing factory in Copenhagen
or F.O.B. Rangoon Airport, as selected by customer.
b) If customer choose to have the equipment delivered
F.O.B. Rangoon Airport, the equipment will be shipped
by air and truck and contractor will arrange the
transportation so that his installation team will
be present at site for receipt and unpacking of
the equipment. The battery alternative power source
may be sent by sea freight.
c) The packing and marking are proposed to be in accordance
with Contractors standard procedures for CR80 equipment.
The following is a brief discussion of the method:
d) The computer equipment is constructed in a modular
fashion. i.e. 19" racks containing crate assemblies
with plug-in modules. This is reflected in the
packaging as follows:
1) Modules are packed in styrofoam containers
designed to fit each module size. A number
of modules are put into a cardboard box or
similar of Europe pallet standard size.
2) Crates are packed with styrofoam corners so
that they fit into a cardboard box of Europe
pallet standard size.
3) Each rack or cabinet bay is separately packed
on a wooden pallet, protected with styrofoam
corners, and wrapped in plastic sheets. A skeleton
of timber protects the five free surfaces.
4) Spare parts are packed individually in accordance
with the methods outlined in 1-3 above. In
addition spare parts are wrapped and sealed
in a plastic bag with silicagel for long term
storage. Each spare package is provided with
a label specifying contents.
e) Packing lists are forwarded with every shipping
container. One copy of the packing list is enclosed
in the container; one copy will be attached to
the exterior of the container in an envelope clearly
marked "packing list".
Two copies of the packing lists shall be provided
to the customer. Each packing list will show:
- Shipping address
- Package number
- Contract number
- Contract item number
- Item description
- Part number
- Serial Number (if available)
- Quantity shipped
- Date shipped
f) Each container is to be clearly marked on the exterior
surface with at least:
- Project Title
- Purchaser Contract Number
- Contract Item Number
- Manufacturer's name and address
- Ship to address
In addition, each container is clearly labelled
with the identification and number of pieces in
the shipment and with precautionary labelling applicable
to handling.
7.5 S̲I̲T̲E̲ ̲I̲N̲S̲T̲A̲L̲L̲A̲T̲I̲O̲N̲
a) The contractor will set up an installation team
to perform the installation of the proposed equipment.
The team will install the equipment in accordance
with the Customer approved site installation drawings.
Any changes during installation will be marked
on the drawings. Corrected drawings will be submitted
to Customer after completion of site installation.
b) Installation check-out encompassing hardware verification
will be performed in accordance with an installation
check-out procedure.
c) The proposal is based on the assumption that customer
will undertake the following:
1. Provide and install power cables and power
outlets as specified in the site preparation
requirements (SPR).
2. Provide and install external signal cables,
i.e. signal cables that are not interconnecting
CR delivered equipment, as specified in the
SPR.
3. Provide and install necessary ducts, trays
etc.
8 TRAINING ....................................
8.1 REQUIREMENTS ANALYSIS ....................
8.2 TRAINING PLANNING AND MANAGEMENT .........
8.2.1 Management and Organization ..........
8.2.2 Training Program Plan ................
8.3 COURSE DESCRIPTION .......................
8.3.1 Factory Training .....................
8.3.1.1 Contents of Course ...............
8.3.1.2 Number of Students ...............
8.3.1.3 Length of Course .................
8.3.1.4 Location of Course ...............
8.3.2 On-the-job Training (Operator) .......
8.3.2.1 Contents of Course ...............
8.3.2.2 Number of Students ...............
8.3.2.3 Length of Course .................
8.3.2.4 Location of Course ...............
8.3.3 On-the-job Training (Maintenance) ....
8.3.3.1 Contents of Course ...............
8.3.3.2 Number of Participants ...........
8.3.3.3 Length of Course .................
8.3.3.4 Location of Course ...............
8.3.4 Course Material ......................
8.3.6 Training Methods .....................
8̲ ̲ ̲T̲R̲A̲I̲N̲I̲N̲G̲
8.1 R̲E̲Q̲U̲I̲R̲E̲M̲E̲N̲T̲S̲ ̲A̲N̲A̲L̲Y̲S̲I̲S̲
Based on information in the customer requirements and
CHRISTIAN ROVSING A/S's experience from similar projects,
the following training requirements are listed:
a) A training program for the following personnel
categories shall be proposed:
- Operators
- Hardware Maintenance Personnel
b) The factory training shall have taken place before
installation in Burma.
c) On-the-job training will be performed for two groups
of personnel, i.e. system operators and system
maintainers.
d) The training program shall enable the customer
to operate and support the AMSS independent of
CHRISTIAN ROVSING A/S. Some support tasks may
be supported by our subsidiary in Calcutta.
Christian Rovsing International A/S has taken the steps
necessary to form a joint venture company in India.
The company is registered under the name, Rovsing Wallace
International (RWI).
RWI is operational and will have the resources needed
for installation, commissioning and support for CR80
based systems in early 1984. Currently, staff from
RWI are located in Copenhagen and are assigned as regular
project members for various projects undertaken by
CR A/S in the data communications area.
Based on the above, RWI is able to undertake both software
and hardware related activities in India and other
countries located in south-east Asia.
8.2 T̲R̲A̲I̲N̲I̲N̲G̲ ̲P̲L̲A̲N̲N̲I̲N̲G̲ ̲A̲N̲D̲ ̲M̲A̲N̲A̲G̲E̲M̲E̲N̲T̲
8.2.1 M̲a̲n̲a̲g̲e̲m̲e̲n̲t̲ ̲a̲n̲d̲ ̲O̲r̲g̲a̲n̲i̲z̲a̲t̲i̲o̲n̲
The training is prepared and conducted by the Integrated
Logistics Support Department - ILS - installation,
maintenance, support, and training/handbooks. A manager
is responsible for each of the four areas. Refer to
Figure 8.2.1-1. The manager in charge of the Training
and Handbooks section is responsible for the planning
of the courses and the final outcome of training material.
Technical writers and instructors develop and implement
the plans.
Figure 8.2.1-1…01…ILS Organization
8.2.2 T̲r̲a̲i̲n̲i̲n̲g̲ ̲P̲r̲o̲g̲r̲a̲m̲ ̲P̲l̲a̲n̲
The Training Plan gives a survey of how the planning
development and conduct of the training is accomplished.
The plan is concerned with details of the training.
The objectives are stated, the requirements established
and the courses are described. The training methods
are outlined. The equipment, facilities, and environment
to be used are explained.
8.3 C̲O̲U̲R̲S̲E̲ ̲D̲E̲S̲C̲R̲I̲P̲T̲I̲O̲N̲
The following courses are offered to the customer's
personnel, who will be responsible for the operation
and maintenance of the system.
8.3.1 F̲a̲c̲t̲o̲r̲y̲ ̲T̲r̲a̲i̲n̲i̲n̲g̲
The Factory Training Course covers all aspects of management
and operation of the system from all types of terminals,
plus maintenance of the system.
One experience person concerned with the management
and operation plus maintenance should participate in
this course, where common system characteristics and
information are covered.
8.3.1.1 C̲o̲n̲t̲e̲n̲t̲s̲ ̲o̲f̲ ̲C̲o̲u̲r̲s̲e̲
The contents of the course include:
- System Description
- Normal Operation
- Emergency Operation
- Elementary Troubleshooting
- Record Keeping and Reporting
- Cold and Warm start
- Preventive maintenance
- Corrective maintenance
8.3.1.2 N̲u̲m̲b̲e̲r̲ ̲o̲f̲ ̲S̲t̲u̲d̲e̲n̲t̲s̲
At least one experienced person will participate but
the maximum number of students could be increased to
6.
8.3.1.3 L̲e̲n̲g̲t̲h̲ ̲o̲f̲ ̲C̲o̲u̲r̲s̲e̲
2 weeks.
8.3.1.4 L̲o̲c̲a̲t̲i̲o̲n̲ ̲o̲f̲ ̲C̲o̲u̲r̲s̲e̲
At Christian Rovsing A/S facility.
8.3.2 O̲n̲-̲t̲h̲e̲-̲j̲o̲b̲ ̲T̲r̲a̲i̲n̲i̲n̲g̲ ̲(̲O̲p̲e̲r̲a̲t̲o̲r̲)̲
The operator's portion of the On-the-job Training Course
covers aspects of management and operation of the system
from all types of terminals.
All personnel concerned with the management and operation
should participate in this course, where all common
system characteristics and information are covered.
8.3.2.1 C̲o̲n̲t̲e̲n̲t̲s̲ ̲o̲f̲ ̲C̲o̲u̲r̲s̲e̲
The contents of the course include:
- System Description
- Normal Operation
- Emergency Operation
- Elementary Troubleshooting
- Record Keeping and Reporting
8.3.2.2 N̲u̲m̲b̲e̲r̲ ̲o̲f̲ ̲S̲t̲u̲d̲e̲n̲t̲s̲
Four persons will participate in this course, but the
maximum number of students could be increased to 6.
8.3.2.3 L̲e̲n̲g̲t̲h̲ ̲o̲f̲ ̲C̲o̲u̲r̲s̲e̲
30 days.
8.3.2.4 L̲o̲c̲a̲t̲i̲o̲n̲ ̲o̲f̲ ̲C̲o̲u̲r̲s̲e̲
On site.
8.3.3 O̲n̲-̲t̲h̲e̲-̲j̲o̲b̲ ̲T̲r̲a̲i̲n̲i̲n̲g̲ ̲(̲M̲a̲i̲n̲t̲e̲n̲a̲n̲c̲e̲)̲
The Maintenance portion of the On-the-job Training
Course will be conducted on the customer's site on
the customer's equipment after installation of the
total system.
8.3.3.1 C̲o̲n̲t̲e̲n̲t̲s̲ ̲o̲f̲ ̲C̲o̲u̲r̲s̲e̲
The maintenance course includes:
- Cold- and Warm start
- System Operation
- Preventive maintenance
- Corrective maintenance
- Emergency Procedures
8.3.3.2 N̲u̲m̲b̲e̲r̲ ̲o̲f̲ ̲S̲t̲u̲d̲e̲n̲t̲s̲
Four persons will participate in this course but the
maximum number of students could be increased to 6.
8.3.3.3 L̲e̲n̲g̲t̲h̲ ̲o̲f̲ ̲C̲o̲u̲r̲s̲e̲
30 days.
8.3.3.4 L̲o̲c̲a̲t̲i̲o̲n̲ ̲o̲f̲ ̲C̲o̲u̲r̲s̲e̲
On site.
8.3.4 C̲o̲u̲r̲s̲e̲ ̲M̲a̲t̲e̲r̲i̲a̲l̲
The course material consists of the manuals delivered
for the system, which shall be available for reference
during the courses.
The students are supplied with hard-copies of visual
aids and ringbinders/paper for notes during the course.
8.3.6 T̲r̲a̲i̲n̲i̲n̲g̲ ̲M̲e̲t̲h̲o̲d̲s̲
The students are given knowledge of the subjects in
lectures, discussions, and group work involving informal
talks, with the aid of a blackboard, an overhead projector,
and handouts. The students' skills are enabled by
demonstrations hand-on training and studies on the
equipment.
C̲o̲u̲r̲s̲e̲ ̲F̲a̲c̲i̲l̲i̲t̲i̲e̲s̲
CHRISTIAN ROVSING A/S and the customer shall supply
the normal classroom facilities, i.e.
- Classroom
- Furniture
- Overhead Projector/screen
- Adequate lighting/space
- Black/White board
CHRISTIAN ROVSING A/S will supply training equipment
mainly containing the units used in the actually delivered
system. On site and when otherwise possible, CHRISTIAN
ROVSING A/S shall be allowed use of customer equipment.
9 DOCUMENTATION ..................................
9.1 DOCUMENTATION OVERVIEW .....................
9.2 STRUCTURE OF MANUALS .......................
9.3 DOCUMENTATION DESIGN REQUIREMENTS ..........
9.4 DOCUMENTATION PRODUCTION REQUIREMENTS ......
9̲ ̲ ̲D̲O̲C̲U̲M̲E̲N̲T̲A̲T̲I̲O̲N̲
The documentation provided by Christian Rovsing A/S
is based on the information stated in RFP and on experience
from similar projects.
Manual content and format are specifically designed
for ease of use to meet the need of the intended user.
The following principles further explain the concept:
a. Each manual is organized to explain the system
in terms of application and operation.
b. Each manual will be as self-contained as possible.
Reference to other documents will be minimal.
c. Text will be factual, concise, specific, clearly
worded and illustrated. Sentence form will be
simple and direct. Abbreviated tabular data such
as charts, tables, checklists and diagrams are
exployed, whenever practicable, in lieu of written
text.
d. Technical knowledge reflected in the manual is
converted into the most easily understood wording
possible. Discussions of theory are omitted except
where essential for practical understanding and
application. A choise of words requiring a specialized
knowledge will be avoided, except where no other
wording conveys the intended meaning. The primary
emphasis is placed upon the specific steps to be
followed, the results which may be expected or
desired, and the corrective measures required when
such results are not obtained.
e. All means, help, and prompt displays will be clearly
defined for use by the user.
9.1 D̲O̲C̲U̲M̲E̲N̲T̲A̲T̲I̲O̲N̲ ̲O̲V̲E̲R̲V̲I̲E̲W̲
Christian Rovsing A/S will provide comprehensive documentation
necessary for the operation and maintenance of all
hardware and software equipment and subsystems, including:
- Software Description Manual
- Programmers Reference Manual
- Operating System Manual
- Data Base Description Manual
- Equipment Reference Manual
- System User Manual
- Maintenance Manual
- Installation Manual
- Training Manual.
The content of above mentioned manuals vill be in accordance
with the requirements of ICAO and comprises:
S̲o̲f̲t̲w̲a̲r̲e̲ ̲D̲e̲s̲c̲r̲i̲p̲t̲i̲o̲n̲ ̲M̲a̲n̲u̲a̲l̲s̲
These manuals contains a complete technical description
of the computer program structure and functions and
other pertinent data.
P̲r̲o̲g̲r̲a̲m̲m̲e̲r̲s̲ ̲R̲e̲f̲e̲r̲e̲n̲c̲e̲ ̲M̲a̲n̲u̲a̲l̲
These manuals contains a description of the CR80 computer
instructions, commands and all other necessary programmers
reference information.
O̲p̲e̲r̲a̲t̲i̲n̲g̲ ̲S̲y̲s̲t̲e̲m̲ ̲M̲a̲n̲u̲a̲l̲s̲
These manuals describes the XAMOS operating system
of the CR80 configuration and all the services provided
by the operating system to every other software subsystem
and all necessary procedures to load and operate the
system.
…86…1 …02… …02… …02… …02…
D̲a̲t̲a̲ ̲B̲a̲s̲e̲ ̲D̲e̲s̲c̲r̲i̲p̲t̲i̲o̲n̲ ̲M̲a̲n̲u̲a̲l̲
This manual contains table structure material with
pictorial layout of all tables, files, records and
other structures used in the system.
E̲q̲u̲i̲p̲m̲e̲n̲t̲ ̲R̲e̲f̲e̲r̲e̲n̲c̲e̲ ̲M̲a̲n̲u̲a̲l̲
This manual contains reference material for each of
the devices used in the system with a general technical
description of the equipment, performance criteria
and other pertinent information.
S̲y̲s̲t̲e̲m̲ ̲U̲s̲e̲r̲ ̲M̲a̲n̲u̲a̲l̲
This manual contains information needed to an able
control and execution of each computer program with
a detailed description of the functions and all other
usefull information.
M̲a̲i̲n̲t̲e̲n̲a̲n̲c̲e̲ ̲M̲a̲n̲u̲a̲l̲
This manual contains all information required for efficient
and reliable maintenance of all equipment and systems
including effective maintenance procedures.
Refer to Section 10.
I̲n̲s̲t̲a̲l̲l̲a̲t̲i̲o̲n̲ ̲D̲o̲c̲u̲m̲e̲n̲t̲a̲t̲i̲o̲n̲
The site preparation requirements which contain requirements
to power, space, ducting etc. will be delivered to
customer for approval 3 months prior to installation.
Equipment installation drawings that show how the equipment
will be integrated and installed will be delivered
to customer one month prior to start of installation.
Refer to Section 7.3.
9.2 S̲T̲R̲U̲C̲T̲U̲R̲E̲ ̲O̲F̲ ̲M̲A̲N̲U̲A̲L̲S̲
The contents of each manual will consist of the information
described below.
The material proceeding the first text pages will consist
of the following:
a) Front Cover/Title Page
b) Warning Page (H/W subsystem)
c) Revision Record
d) Table of Contents
e) Preface
f) Applicable Documents
The contents of the manuals consist of the subjects
relevant for the type of manual in question.
9.3 D̲O̲C̲U̲M̲E̲N̲T̲A̲T̲I̲O̲N̲ ̲D̲E̲S̲I̲G̲N̲ ̲R̲E̲Q̲U̲I̲R̲E̲M̲E̲N̲T̲S̲
The primary requirement of Manual design is that the
manuals will be usable by the intended audience. In
addition, the following specific requirements are met:
F̲O̲R̲M̲A̲T̲
Each document will have the following structural parts:
a title page, a release page, a change log, a table
of contents, the main body of text, a glossary, and
illustrations. Optional parts are a list of figures
or illustrations, a list of tables, appendices, and
an index. Each page of the manual will contain the
release date, page number document number, and page
content heading.
(1) The title page contains the title of the manual,
and the date of the manual. It will be prepared
under relaxed format style.
(2) The Revision Record page contains a description
of the version of the subject with which the manual
is compatable.
(3) The table of contents contains a list of topic
headings taken from the main body of the text.
The page number of the topic heading will be listed.
(4) The main body of the text is divided into chapters.
Each main topic will consitute a chapter.
(5) The glossary will contain all specialized terms
used within the manual.
(6) The optional appendices may contain any auxiliary
material deemed necessary in the use of the manual.
Examples are tables and worksheets.
(7) The optional index contains reference page
numbers of each topic listed.
P̲A̲G̲I̲N̲A̲T̲I̲O̲N̲
Pages may be numbered consecutively throughout
the document, or throughout a chapter only.
T̲O̲P̲I̲C̲ ̲H̲E̲A̲D̲I̲N̲G̲S̲.
Topic headings, will indicate clearly the order
of subordination. Parts, chapters, sections, paragraphs,
figures, and tables will have brief descriptive
titles. Major heading may be centered. Subordinate
topic heading will be left-justified on the page.
Run-in headings may be used if further subordination
is required.
I̲L̲L̲U̲S̲T̲R̲A̲T̲I̲O̲N̲S̲ ̲A̲N̲D̲ ̲D̲I̲A̲G̲R̲A̲M̲S̲.
The illustrations and diagrams for manuals will
be prepared under relaxed format style. Illustrations
and diagrams will be used in lieu of, and/or support
of, text whenever this technique will result in
a more effective presentation of information.
N̲O̲M̲E̲N̲C̲L̲A̲T̲U̲R̲E̲.
Nomenclature used will be consistent throughout
a particular set of manuals. Standard acronyms
and abbreviations may be used provided they are
first defined in the text. They will also be defined
in the glossary.
U̲S̲E̲R̲S̲ ̲A̲I̲D̲S̲.
Summaries and printed tables will be provided where
appropriate to aid the use of the manual.
9.4 D̲O̲C̲U̲M̲E̲N̲T̲A̲T̲I̲O̲N̲ ̲P̲R̲O̲D̲U̲C̲T̲I̲O̲N̲ ̲R̲E̲Q̲U̲I̲R̲E̲M̲E̲N̲T̲S̲
Manuals are designed for economy of initial production
with respect to time. This implies use of a standardized
format. Basic format is consistent between and within
chapters in the manual so that mass production data
preparation techniques can be employed.
Manuals are designed for economy of production with
respect to maintenance. This implies:
(1) Modular construction. Functions are kept separate
within text to facilitate maintenance procedures.
(2) Minimal sequencing. Unnecessary numbering of sections,
paragraphs, tables and figures are avoided within
the manuals so that periodic revisions can be accomplished
with a minimum of related sequence changes to the
manual.
Illustration procedures will be standardized to make
possible the liberal use of scripting examples, output
samples, and other art work.
B̲I̲N̲D̲E̲R̲
The documentation, bound between hard covers, will
be collected in a ring binding system for easy and
convenient handling by the user. This ring binding
system permits easy removal and insertion of pages.
It permits the documents to lie flat when opened at
any page. The ringtype binding mechanism (four rings
per sheet) meets the DIN STD.
P̲A̲P̲E̲R̲/̲P̲R̲I̲N̲T̲I̲N̲G̲ ̲A̲N̲D̲ ̲T̲Y̲P̲I̲N̲G̲
The basic document medium for all the documentation
will be printed on paper of good quality (80 g/sq.
m).
The paper will be of standard A4 format. If necessary,
drawings and diagrams will be expanded from this size.
The text will be either composed or typed by word processing
equipment. The characters produced by printers will
be easily legible. Type styles and sizes will be in
accordance with conventional typewriter font.
The foldout sheets will be a three-leaved type with
the text/illustration on the right side so that it
can be observed while reading the related text.
In particular, the paper for frequently used illustrations,
diagrams, tables, and instructions will be of quality
and thickness that will permit repeated opening and
folding without tearing or cracking the folds.
B̲L̲O̲C̲K̲ ̲S̲C̲H̲E̲M̲A̲T̲I̲C̲S̲ ̲A̲N̲D̲ ̲D̲R̲A̲W̲I̲N̲G̲S̲
The Blocked Schematics and Drawings will be in accordance
with recognized industrial and national standards.
S̲U̲B̲M̲I̲T̲T̲A̲L̲ ̲O̲F̲ ̲M̲A̲N̲U̲A̲L̲S̲ ̲A̲N̲D̲ ̲H̲A̲N̲D̲B̲O̲O̲K̲S̲
One (1) set of each manual and drawing will be submitted.
The final version of this documentation will be of
reproducible quality.
10 MAINTENANCE PLANNING ......................
10.1 MAINTENANCE PLAN ........................
10.2 RECOMMENDED SPARE PARTS LIST (RSPL) .....
10.3 TOOLS AND TEST EQUIPMENT LIST ...........
10.4 MAINTENANCE ACTIVITIES ..................
10.4.1 Preventive Maintenance ..............
10.4.2 Emergency Maintenance ...............
10.5 TECHNICAL SUPPORT .......................
10.5.1 Hardware Support ....................
10.5.2 Software Support ....................
10.6 SPARE PARTS PROVISIONING ...............
10.6.1 Requirement Analysis ................
10.6.2 Spares Delivery .....................
10.6.3 Repair Philosophy ...................
1̲0̲ ̲ ̲M̲A̲I̲N̲T̲E̲N̲A̲N̲C̲E̲ ̲A̲N̲D̲ ̲T̲E̲C̲H̲N̲I̲C̲A̲L̲ ̲S̲U̲P̲P̲O̲R̲T̲
The purpose of the Maintenance Planning Phase is to
establish a complete maintenance program which will
fulfil the contractual requirements for maintenance
and insure system reliability and availability to ICAO.
Simultaneously it shall provide a solid base for the
development of the detailed maintenance documentation.
During the planning phase Christian Rovsing A/S will
be working closely with ICAO to insure:
a) continuous resident support
b) adequate training programs for support staff
c) availability of maintenance specialist for emergency
situations
d) a multi-layered level of support during and after
installation of the equipment
e) availability of Spare Parts
f) availability of Tools and Test Equipment
g) development of a comprehensive maintenance plan.
10.1 M̲A̲I̲N̲T̲E̲N̲A̲N̲C̲E̲ ̲P̲L̲A̲N̲
a) I̲n̲t̲r̲o̲d̲u̲c̲t̲i̲o̲n̲
The basic philosophy used in the configuration
of the system for ICAO is to enable maintenance,
both preventive and emergency, to be performed
with a minimum of system downtime thereby meeting
the availability requirements. This is achieved
through the use of redundant hardware modules and
by extensive use of the board swop principle once
the sophisticated fault detection software has
isolated a faulty assembly.
b) M̲a̲i̲n̲t̲e̲n̲a̲n̲c̲e̲ ̲E̲n̲g̲i̲n̲e̲e̲r̲i̲n̲g̲
Maintenance engineering describes the effort in
the area of maintenance.
The general approach to preventive maintenance
is that the applicable procedures are referenced
via an overall system maintenance sheet. The special
tools and test equipment which will be used for
maintenance are listed and their applications shown.
A failure reporting system will be generated and
maintained throughout the warranty period. Incorporated
in this system are
- Failure reports which will be filled in at
the installations and used in the screening
of systematic errors and used to modify the
spare parts stock
- A log book which will be located at each installation
- Field Change Notices used as applicable for
updating of the systems.
c) O̲n̲-̲S̲i̲t̲e̲ ̲M̲a̲i̲n̲t̲e̲n̲a̲n̲c̲e̲
On-site maintenance will be performed by the customers
own technicians. The technicians will, through
formal training courses, be capable of carrying
out preventive maintenance both on the CR80 equipment
and the connected peripherals. The preventive maintenance
required on the CR80 equipment is restricted to
simple tasks such as cleaning of dust filters,
inspection of LED's etc. Emergency maintenance
will typically be carried out on a module exchange
basis. The trouble shooting techniques developed
for the system configuration will enable the maintenance
personnel to isolate and replace modules in the
CR80 equipment within one hour. Also the technicians
will perform modifications according to Field Change
Notices.
d) M̲a̲i̲n̲t̲e̲n̲a̲n̲c̲e̲ ̲M̲a̲n̲a̲g̲e̲m̲e̲n̲t̲
The service technicians will be trained to carry
out 1st level maintenance consisting of preventive
and emergency maintenance as previously described.
Logic boards with known faults should be returned
for repair and then returned to the spare parts
complement of the node. In some instances faulty
modules, i.e. power supply, fan assembly, will
be repaired on-site.
Christian Rovsing A/S will provide 2nd and 3rd
level maintenance in Calcutta and Copenhagen respectively
through field service engineers, inhouse repair
facilities, and software maintenance support.
10.2 R̲E̲C̲O̲M̲M̲E̲N̲D̲E̲D̲ ̲S̲P̲A̲R̲E̲ ̲P̲A̲R̲T̲S̲ ̲L̲I̲S̲T̲ ̲(̲R̲S̲P̲L̲)̲
During the maintenance planning phase the RSPL will
be prepared based on an analysis of the H/W. At the
end of the planning phase the RSPL will be submitted
to ICAO for approval. Hereafter it will be referred
to as the Approved Spare Parts List (ASPL). Delivery
of the spares will take place simultaneously with the
installation of the equipment at the location. It will
be based on our current predictions of the failure
rate of the CR80 modules and their MTBF values supplemented
by our experience from similar projects. In its final
form the RSPL will be composed of
- CR80 modules
- Special OEM equipment
- Standard OEM equipment.
The recommendation of the spares complement for the
CR80 modules is based on wellknown calculation formulas
for probalities.
The recommendation of spares for OEM equipment is based
on the manufacturer's RSPL.
10.3 T̲O̲O̲L̲S̲ ̲A̲N̲D̲ ̲T̲E̲S̲T̲ ̲E̲Q̲U̲I̲P̲M̲E̲N̲T̲ ̲L̲I̲S̲T̲
During the maintenance planning phase a final list
of special tools and test equipment (TE) will be prepared
based on an analysis of the H/W breakdown of the system.
The list will be incorporated as an appendix to the
maintenance manual and submitted to ICAO at the end
of the planning phase. The special tools and TE will
be available at the sites during the installation phase
of the equipment. The initial version of the tools
and test equipment list is included in appendix B.
10.4 M̲A̲I̲N̲T̲E̲N̲A̲N̲C̲E̲ ̲A̲C̲T̲I̲V̲I̲T̲I̲E̲S̲
10.4.1 P̲r̲e̲v̲e̲n̲t̲i̲v̲e̲ ̲M̲a̲i̲n̲t̲e̲n̲a̲n̲c̲e̲
Preventive maintenance shall be carried out in accordance
with the procedures established in the maintenance
manual. The preventive maintenance required on the
CR80 equipment is restricted to cleaning of dust filters,
inspection of LED's etc. and the implementation of
modifications according to field change notices. The
overall design of the system utilizing modular hardware
will insure that preventive maintenance will have a
minimal effect on the performance of the system.
10.4.2 E̲m̲e̲r̲g̲e̲n̲c̲y̲ ̲M̲a̲i̲n̲t̲e̲n̲a̲n̲c̲e̲
Emergency maintenance, i.e. fault identification and
module replacement will be carried out by the trained
technicians. Repair of defective subassemblies will
be undertaken by Christian Rovsing A/S at no cost during
the warranty period, and thereafter any charges can
be regulated by the terms and conditions stated in
a maintenance/support contract resulting from negotiations
with the customer.
Implementation of field changes will be done by the
on site technicians after instructions from Christian
Rovsing A/S.
Isolation of faulty subassemblies is accomplished by
the use of both on-line and off-line diagnostic software
programs. On-line error detection programs will detect
hardware faults when they occur. This is accomplished
both by background checks and error detection during
data transfer from one subsytem to another. The off-line
diagnostic program provides for a much more thorough
check of the various elements of a subsystem. In addition,
this program will be used to verify repaired modules.
10.5 T̲E̲C̲H̲N̲I̲C̲A̲L̲ ̲S̲U̲P̲P̲O̲R̲T̲
This section describes the Christian Rovsing A/S support
which will complement the maintenance program through
the warranty period and on.
10.5.1 H̲a̲r̲d̲w̲a̲r̲e̲ ̲S̲u̲p̲p̲o̲r̲t̲
Field service engineers will be available from Christian
Rovsing A/S facilities in Calcutta and Copenhagen.
This function will, together with the repair facilities
and spares stock provided by Christian Rovsing A/S,
provide the 2nd level of maintenance. The 3rd level
maintenance is software and hardware maintenance support
performed by engineers resident at Christian Rovsing
A/S.
Under a separate contract 2nd and 3rd level maintenance
support may be continued after the warranty period
has expired.
10.5.2 S̲o̲f̲t̲w̲a̲r̲e̲ ̲S̲u̲p̲p̲o̲r̲t̲
Christian Rovsing A/S can provide system analysis and
programming service to the customer. This service can
commence with the acceptance of the first installation
and will continue until such a time that the customer
has formed his own capability for software maintenance.
The following functions are offered:
a) To design and implement changes and modifications
to the system and application software at the request
of the customer.
b) Provide assistance and expertise to the customer
when required.
c) Diagnose and correct all faults that occur in the
software.
d) To control and maintain the software documentation.
10.6 S̲P̲A̲R̲E̲ ̲P̲A̲R̲T̲S̲ ̲P̲R̲O̲V̲I̲S̲I̲O̲N̲I̲N̲G̲
10.6.1 R̲e̲q̲u̲i̲r̲e̲m̲e̲n̲t̲ ̲A̲n̲a̲l̲y̲s̲i̲s̲
The following points are considered when defining the
spares philosophy for the installation.
a) desired degree of availability of the system
b) design criterium of the system relative to the
degree of equipment redundancy incorporated in
the system
c) the number of processor units and channel units
within the site configuration
d) frequency of use of specific logic boards
e) the MTBF of each type of logic board or sub-assembly
f) the MTTR of each type of logic board or sub-assembly.
10.6.2 S̲p̲a̲r̲e̲s̲ ̲D̲e̲l̲i̲v̲e̲r̲y̲
As stated in section 10.3.2, Christian Rovsing A/S
will develop a Recommended Spare Parts List (RSPL).
The RSPL reflects the philosophy stated above in conjunction
with the system design.
Spares will be delivered at the time of installation.
The spares indicated in the price proposal are only
for budgetary use.
10.6.3 R̲e̲p̲a̲i̲r̲ ̲P̲h̲i̲l̲o̲s̲o̲p̲h̲y̲
It is assumed that all faulty subassemblies will be
returned to a repair depot in Calcutta.
11 ACCEPTANCE TESTING ..........................
11.1 FACTORY ACCEPTANCE .......................
11.2 FINAL ACCEPTANCE .........................
1̲1̲ ̲ ̲A̲C̲C̲E̲P̲T̲A̲N̲C̲E̲ ̲T̲E̲S̲T̲I̲N̲G̲
Christian Rovsing will provide a test plan and a set
of test procedures to be followed during the two acceptance
tests, i.e. Factory Acceptance Test and Final Acceptance
Test on site.
11.1 F̲A̲C̲T̲O̲R̲Y̲ ̲A̲C̲C̲E̲P̲T̲A̲N̲C̲E̲
Before shipment of the system, it will be assemled
in the factory of Christian Rovsing. A full set of
test procedures will be established and executed to
demonstrate that all hardware and software functions
required to support the system operation are functioning
properly.
The hardware will be tested by inspection and measurements.
The software will be tested by execution of the different
programs.
During performance of the Factory Test all steps in
the procedures will be recorded, and any discrepancies
noted will be corrected before shipment from the factory.
11.2 F̲I̲N̲A̲L̲ ̲A̲C̲C̲E̲P̲T̲A̲N̲C̲E̲
After installation of the new system on site; operations
will be moved to the new system, and there will be
a break-in and shake down period of 30 days, during
which the new system will be closely monitored in order
to demonstrate satisfactory performance of the system.
During this period Christian Rovsing will be responsible
for proper operation of the equipment. Any adjustments
and repair, which if needed will be done by Christian
Rovsing without depleting the spare parts.
Training of personnel will be performed during this
period.
After correction of all noted discrepancies, at the
end of the 30 day period, the customer will take over
all responsibilities of the AMSS.
