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Notes: IDDN - ELBIT, VOL II
Names: »4306A «
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IDCN - VOLUME
II
SYS/83-11-18
TECHNICAL PROPOSAL
Page
9 MAINTENANCE AND TECHNICAL SUPPORT ..............
9.1 GENERAL ....................................
9.2 REQUIREMENTS ANALYSIS ......................
9.3 MAINTENANCE PLANNING .......................
9.3.1 Maintenance Plan .......................
9.3.2 Recommended Spare Parts List (RSPL) ....
9.3.3 Tools and Test Equipment List ..........
9.4 MAINTENANCE ACTIVITIES .....................
9.4.1 Preventive Maintenance .................
9.4.2 Emergency Maintenance ..................
9.5 TECHNICAL SUPPORT ..........................
9.5.1 Hardware Support .......................
9.5.2 Software Support .......................
9.6 SPARE PARTS PROVISIONING ..................
9.6.1 Requirement Analysis ...................
9.6.2 Spares Delivery ........................
9.7 EXTENDED MAINTENANCE .......................
9.7.1 Repair Philosophy ......................
9.7.2 Depot Test Equipment ...................
9.7.3 Depot Spares ...........................
9̲ ̲ ̲M̲A̲I̲N̲T̲E̲N̲A̲N̲C̲E̲ ̲A̲N̲D̲ ̲T̲E̲C̲H̲N̲I̲C̲A̲L̲ ̲S̲U̲P̲P̲O̲R̲T̲
9.1 G̲E̲N̲E̲R̲A̲L̲
The maintenance and technical support described in
this section is covering all levels of support which
can be provided by Christian Rovsing A/S (CR). When
the maintenance and support required for the IDCN system
has been defined, a dedicated plan will be developed.
This plan will be a built up of selected levels from
this section and variations thereof. The maintenance
part of this proposal will therefore not be priced.
9.2 R̲E̲Q̲U̲I̲R̲E̲M̲E̲N̲T̲S̲ ̲A̲N̲A̲L̲Y̲S̲I̲S̲
Based on CR's experience from similar projects, the
following major requirements can be stated:
1) Emergency corrective maintenance at each node must
be to the board level.
2) Qualified maintenance personnel available at each
node. Minimum of one resident technician.
3) Additional qualified maintenance personnel available
for emergency situations.
4) Extensive use of Maintenance and Diagnostic Software
for hardware fault isolation.
5) The maintenance concept combined with the proposed
hardware/software concept shall insure the required
availability.
6) Christian Rovsing shall prepare a Maintenance Plan
based on the final system configuration and submit
it to ELBIT.
7) Christian Rovsing shall submit to ELBIT a Recommended
Spare Parts List (RSPL).
8) Christian Rovsing shall submit a Tools and Test
Equipment list to ELBIT.
9) Christian Rovsing A/S shall prepare a Maintenance
Manual based on the final system design and the
philosophy outlined in the Maintenance Plan.
10) Christian Rovsing A/S shall deliver the spare
parts according to the Approved Spare Parts
List (ASPL).
9.3 M̲A̲I̲N̲T̲E̲N̲A̲N̲C̲E̲ ̲P̲L̲A̲N̲N̲I̲N̲G̲
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 ELBIT.
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 ELBIT 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.
9.3.1 M̲a̲i̲n̲t̲e̲n̲a̲n̲c̲e̲ ̲P̲l̲a̲n̲
a) I̲n̲t̲r̲o̲d̲u̲c̲t̲i̲o̲n̲
The basic philosophy used in the configuration
of the system for ELBIT 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 swap 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 and support necessary prior
to the installation of the equipment.
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 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 at the nodes 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 through field service engineers,
inhouse repair facilities, and software maintenance
support.
9.3.2 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 ELBIT 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 each location. It
will be based on our current predictions of the failure
rate of the CR80D modules and their MTBF values supplemented
by our experience from similar projects. In its final
form the RSPL will be composed of
- CR80D modules
- Special OEM equipment
- Standard OEM equipment.
The recommendation of the spares complement for the
CR80D modules is based on wellknown calculation formulas
for probalities.
The recommendation of spares for OEM equipment is based
on the manufacturer's RSPL.
9.3.3 T̲o̲o̲l̲s̲ ̲a̲n̲d̲ ̲T̲e̲s̲t̲ ̲E̲q̲u̲i̲p̲m̲e̲n̲t̲ ̲L̲i̲s̲t̲
During the maintenance planning phase a 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 ELBIT 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.
9.4 M̲A̲I̲N̲T̲E̲N̲A̲N̲C̲E̲ ̲A̲C̲T̲I̲V̲I̲T̲I̲E̲S̲
9.4.1 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 redundant hardware
will insure that preventive maintenance will have a
minimal effect on the performance of the system.
9.4.2 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.
9.5 T̲E̲C̲H̲N̲I̲C̲A̲L̲ ̲S̲U̲P̲P̲O̲R̲T̲
This section describes the Christian Rovsing A/S support
which will complement the maintenance program through
the warranty period and on.
9.5.1 H̲a̲r̲d̲w̲a̲r̲e̲ ̲S̲u̲p̲p̲o̲r̲t̲
Field service engineers will be available from Christian
Rovsing A/S facilities in Copenhagen. This function
will, together with the repair facilities and spares
stock provided at 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 if the
standard maintenance support applies. In case that
the customer elects to perform extended maintenance
performing unit-level test, approximately 75% of the
3rd level maintenance can be performed.
Under a separate contract 2nd and 3rd level maintenance
support may be continued after the warranty period
has expired.
9.5.2 S̲o̲f̲t̲w̲a̲r̲e̲ ̲S̲u̲p̲p̲o̲r̲t̲
Christian Rovsing A/S will provide system analysis
and programming service to the customer. This service
will 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.
9.6 S̲P̲A̲R̲E̲ ̲P̲A̲R̲T̲S̲ ̲P̲R̲O̲V̲I̲S̲I̲O̲N̲I̲N̲G̲
9.6.1 R̲e̲q̲u̲i̲r̲e̲m̲e̲n̲t̲ ̲A̲n̲a̲l̲y̲s̲i̲s̲
The following points are considered when defining the
spares philosophy for each site:
a) desired degree of availability of the network
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.
9.6.2 S̲p̲a̲r̲e̲s̲ ̲D̲e̲l̲i̲v̲e̲r̲y̲
As stated in section 9.3.2, 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.
9.7 E̲X̲T̲E̲N̲D̲E̲D̲ ̲M̲A̲I̲N̲T̲E̲N̲A̲N̲C̲E̲
The purpose of extended maintenance is to establish
a high degree of selfsupport with respect to modul
repair.
9.7.1 R̲e̲p̲a̲i̲r̲ ̲P̲h̲i̲l̲o̲s̲o̲p̲h̲y̲
It is assumed that all faulty subassemblies will be
returned to a repair depot established by the customer.
9.7.2 D̲e̲p̲o̲t̲ ̲T̲e̲s̲t̲ ̲E̲q̲u̲i̲p̲m̲e̲n̲t̲
Based on CR's experience from similar projects the
following test equipment is recommended:
1) Functional testers, e.g. GEN RAD 1795 HD general
purpose tester.
This equipment is intended for troubleshooting
on subassemblies of low complexity as well as analog
equipment.
2) "In-circuit Tester", ZEHNTEL Troubleshooter 801.
This tester is intended for troubleshooting on
subassemblies of medium and high complexity.
3) "Test Bed".
This equipment is needed to troubleshoot certain
faults which are only present in a real-time environment.
Furthermore, the equipment is used for fault verification
on items when they arrive at the depot for repair
as well as verification of fault-free item after
repair.
The "Test Bed" can be a "tripped-down" version
an IDCN system or the development system.
4) Conventional Instruments to support repair, oscilloscopes,
logic analyzers and other common instruments will
be needed.
9.7.3 D̲e̲p̲o̲t̲ ̲S̲p̲a̲r̲e̲s̲
The calculation of spare modules available of the depot
is based on the same philosophy as defined for on site
spares.
Additionally there will be piece parts available at
the depot. The number of piece parts available shall
be negotiated with the customer.
