Tactical Data Links Over Copper (DON10) simple and effective fibre - - PDF document

tactical data links over copper don10 simple and
SMART_READER_LITE
LIVE PREVIEW

Tactical Data Links Over Copper (DON10) simple and effective fibre - - PDF document

Tactical Data Links Over Copper (DON10) simple and effective fibre optics alternative Alec Umansky Ian Thomas (MAJ Retired) Christoph Zuber ......................... Defence Communications Industry P/L DMO, JP2077 2B.1


slide-1
SLIDE 1

Page 1

“Tactical Data Links Over DON10” Defence Communications Industry Pty Ltd

Tactical Data Links Over Copper (DON10) ‐ simple and effective fibre‐optics alternative ‐

Alec Umansky Defence Communications Industry P/L Melbourne, Australia alec.umansky@defence‐comms.org Tel 03 9523 9211 / 0417 501 510 Ian Thomas (MAJ Retired) DMO, JP2077 2B.1 Laverton, VIC ian.thomas@defence.gov.au Christoph Zuber

.........................

.............................................

Christoph.Zuber@defence-comms.org

This paper presents an innovative approach for tactical data links – developed in close collaboration with the Australian Army Signal Corps RASC, with the objective of overcoming the problem of fibre‐optic cables’ propensity to damage in the field. The result of this successful collaboration has led to the development of a field deployable communications product that uses copper cables (DON10 type) as its communications medium and is capable of extending data over 8kms at bandwidth of up to 60Mbs – a simple to use, secure and effective alternative to the fibre‐optic cable based systems, especially on a brigade level and below. The paper reviews the ‘off the shelf’ transmission technology and its adaptation for Defence, resulting in a versatile data link system for field deployed environment in military. Technical and logistical advantages of using copper wires in modern data applications are presented, including the Australian Army’s report of the early field trial. This collaboration and the resulting product won the AFCEA ‘Golden Link Award’ as well as a number of other prestigious industry awards for its outstanding innovation. Keywords: shdsl, transmission, bandwidth, data links, DON10

Introduction

Rapidly deployed, simple to use, effective and reliable communications are vital in modern military operations. The area of data tactical links and the so called ‘ad hoc’ networks requires equipment providing high bandwidth data transfer while being simple to install, operate and

  • repair. Invariably this equipment needs to be capable of

a wide range of applications. The commonly adopted standard in tactical data networks is the use of the fibre‐optic cables (FOC)

  • ffering secure signal propagation and high bandwidth.

However, FOC have a propensity for damage, especially when used in areas of high troop and machinery

  • movement. This is particularly relevant to the ‘rear

echelon’ or Troop Support Elements where FOC damage is a regular occurrence due to it being bent or torn. Inherent to fibre‐optic networks is difficulty and often impracticality to repair the damaged fibre ‐ in the field. A compounding problem occurs when logistics troops relocate (every few days) thus increasing recurrence fibre‐optics outages, repairs, and associated costs. Yet another practical problem with FOC is that they are

  • ften impossible to roll‐out in difficult terrain e.g. in

earthquake recovery operations, mountainous terrain, tunnels and similar harsh environment. Wireless technologies are often difficult to use in these locations due to signal reach i.e. lack of direct line of sight and sometimes due to security constraints. With these concerns as its background brief, the Australian Army started to research alternative technologies that could alleviate FOC field deployable

  • problems. One technology that stood out was ‘DSL’ ‐

transmission signal modulation specially designed for the delivery of internet and other data services over telephone copper cables. This ‘dsl’ technology promised the use of common ‘field wire’ or WD‐1/TT type steel reinforced copper wire in place of FOC in specific environments – most commonly, on a brigade

  • r below levels.

Rationale for using copper cables (or ‘DON10’ as it is known in Australia) was that the technology promised relatively high bandwidth over distance, but more importantly, copper cables offered a ‘soldier friendly’

slide-2
SLIDE 2

Page 2

“Tactical Data Links Over DON10” Defence Communications Industry Pty Ltd transmission medium that even when damaged, could easily and quickly be repaired by soldiers and without special tools.

ADAPTING DSL TECHNOLOGY FOR MILITARY APPLICATIONS

The key characteristic of an ‘off the shelf’ public telecom DSL technology is that it is specified in two main variants: exchange (or switch) based modems and customer premises based modems. Effectively, this corresponds to two types of equipment with different power and infrastructure requirements and thus restricts its use in portable deployable applications. In addition, chipsets performing signal (data) modulation are different at each end of the transmission and thus further restricts equipment configuration and more importantly, its bandwidth flow. The first challenge therefore in adapting an off the shelf dsl based equipment is redesigning its exchange and customer premises delineation. A programmable line interface or Master/Slave configuration is the first step that opens dsl to be used as portable field deployable communications products. The second design challenge is selection of the suitable transmission modulation (as defined by CCITT ‐ public telecommunications standards governing body). The DMT (or Dual Multi‐Tone) modulation was determined to be well suited for the field deployable environment due to its noise immunity whereby the signal and the effective bandwidth is modulated in multiple frequency carriers (up to 300) with each carrier being tested and then monitored for bit‐error‐rates, signal‐to‐noise ratio and other electrical parameters. Once transmission issues were clearly defined, the remaining design concerns are typical of other portable field deployable devices: battery backup power, rugged carry case, dust and moisture proofing. Within a relatively short period of six months a number of functioning prototypes were built for trials by the Australian

  • Army. The trials were a

resounding success proving conclusively the effectiveness of DSL technology and establishing grounds for actual product development.

REDEFINING A STANDARD IN TACTICAL DATA LINK WHY GO BACK TO COPPER?

The general skepticism towards use of copper cables for modern data communications is historical. Copper cable and its field wire military variant have been used as a basic means of data and voice communications since before the First World War. Morse code transmission, voice telephony or signal wire applications are the most common associations. Its use in modern communications ‐ at least until now ‐ has been perceived as archaic. Transmission technologies used in today’s armed forces for voice and data links are predominantly fibre‐optic cable and satellite based. However, when transmission systems are used in a tactical environment, two important disadvantages of using fibre‐optic cables (FOC) are overlooked: (1) FOC tendency to damage due to troop movement and heavy machinery operation, (2) inherent difficulty of repairing FOC in the field. DSL transmission technology allows copper cable to be used as a modern and relatively high bandwidth communications infrastructure and Australian Army has led the way in this technology adaptation for its requirements. The three important factors in considering this alternative by the Army were: (1) a significant cost reduction (by a factor of x20) in using copper compared to FOC (2) the ease of copper cable roll‐out and retrieval and (3) the ease with which copper cable can be repaired: “as easy as tying shoelaces”. Other significant issues with FOC are: its size and weight, as well as difficulties with its roll‐out and retrieval. In short, it was felt that “the old DON10 could be reincarnated”.

EARLY TRIALS SUCCESS

The first functioning prototypes of tactical data modems using Rate Adaptive DSL technology were trialed in a field deployed logistics environment during ‘Crocodile West’ Army exercise (see also Army Field Trial Report pg.5). The equipment viability was proven within the first two days of the exercise when FOC links were inadvertently damaged and the main data link between the two

slide-3
SLIDE 3

Page 3

“Tactical Data Links Over DON10” Defence Communications Industry Pty Ltd logistical depots continued to operate over copper cable. The way was now open to the new product development that would provide a viable alternative to the FOC systems. Its configuration and features were determined in close consultation with the Army Signalers thus ensuring that the product did precisely what was expected of it. The number of transmission channels was determined to be three: for both diverse paths connectivity and

  • redundancy. Basic analogue telephony and VoIP

functionality was also integrated as a complementary feature. To make the new product (named ‘P3’ ‐ Portable 3 transmission channels) field deployable, its electronics were integrated into a rugged case. Its power supply with integrated backup battery was made to operate from a wide range of external power sources. Particular effort went into the design of a user interface

  • f P3s that was simple, effective and required minimal

user training. Following the successful trial, in early 2002 P3s were distributed across Army Signal Units for

  • perational use.

SECURE TRANSMISSION OVER COPPER

Symmetric High Speed Digital Subscriber Line (SHDSL) technology and its product implementation, represents a highly secure transmission platform over copper in the tactical environment. In simple terms, data transmission security in P3/P4/P2 can be equated to a ‘one time pad’. Transmission security is implemented in multiple layers during extensive signals processing. Although not accredited as a government level security, these products can be considered its off‐the‐shelf equivalent. In addition to the product’s inherent security, data access can be further restricted on a user level with network protocols such as: MAC filtering, SSH, Radius, SNMPv3, as well as device management access with password protection. DSL Initialisation Process & Data Scrambling Digital signal modulation scrambles data transmission across multiple (up to 300) frequency carriers within a 1.2MHz spectrum (for SHDSL), that in turn represent maximum possible bandwidth. At the time of initialisation each of the frequency carriers is tested for its signal‐to‐noise ratio and bit‐error‐rate. The length and physical condition of the copper cable will have impact on these parameters. Once the process is complete, only those carriers that passed the initialisation test will be activated. Data packets are then scrambled across active carriers. In P4/P2 products multiple data modulation modes are

  • implemented. These are called TC‐PAM 8, 16, 32, 64 &
  • 128. TC‐PAM is a ’Trellis Coded Pulse Amplitude

Modulation’. It enables efficient and interference‐free transmission of data within a limited frequency spectrum (of 1.2MHz). Although TC‐PAM is defined by the standard (ITU‐T G991.2), its implementation is proprietary to chipset manufacturers. The next security layer is proprietary handshake signals that automatically set up a data link. Called ‘Zero Mode’, it is a manufacturer proprietary feature that is available

  • nly on P4/P2 equipment. The process represents a

significant layer of transmission security. By introducing these additional bits to the transmission, the data cannot be deciphered by any other equipment. Finally, there is distribution or further scrambling of user data across multiple transmission channels. Known as Auto Bandwidth Aggregation, it provides three effective functions: transmission redundancy, increased bandwidth and security i.e. the greater the number of data users, the greater the scrambling effect, the more indecipherable the transmission on any given DON10 link. Electronic signature: the maximum transmission energy

  • f SHDSL is under 1W per channel. The effective energy

level drops with shorter cable distance i.e. lower

  • attenuation. It is important to note that the energy is

driven directly into the copper making its electronic signature extremely small. Any signal leakage or energy that is not driven directly into the copper cable is eliminated during the initialization i.e. each frequency carrier that did not pass the bit‐error‐test is deactivated. It is impossible to ‘listen’ to the transmission as any transmission parameters variation will cause the link to shut down. Similarly, when the copper cable is cut or damaged, the transmission stops. Transmission Security Summary The inherent features of SHDSL and P4/P2 specific product design provide extremely effective transmission

  • security. In order to establish ‘government level’

security, a certified encryption device could be used – making a P4/P2 transmission link a transparent entity.

COST of COPPER CABLE VS FIBRE

Following its first equipment trials, Australian Army conducted an assessment of the cost differential between using copper cable based transmission and an equivalent fibre optic cable based system – see diagram

  • below. The comparison was based on the cost of

infrastructure and did not take into account costs of damage and replacement of cables, commonly experienced with fibre optic.

slide-4
SLIDE 4

Page 4

“Tactical Data Links Over DON10” Defence Communications Industry Pty Ltd Using a variety of scenarios, FOC costs show linear growth, largely attributable to the cost of fibre cable

  • ver distance. When compared to the equivalent set up

using copper cable (DON10) the cost is significantly lower – by a factor of x20. The starkest example of cost escalation during the trials was duplication (back up) of either comms medium. Extending duplicate DON10 links produces a marginal cost increase whereas, fibre optic duplication produces a dramatic cost rise (a factor of x40). There are further factors for consideration: the bulk and weight of FOC, the size of DLAN switches and their external power requirements, complexity of their maintenance ‐ compared with P3/P4/P2’s portability, simplicity of use and long duration battery operation. Costs Comparison of Fibre‐Optic versus DON10

POTENTIAL APPLICATIONS

Australian Defence had identified a requirement for field deployable data links extension for its logistical support troops (the so called SDSS system). First product generation ‘P3’ was successfully rolled out and

  • perationally proven in this role since 2001.

Since then, P3s have been proven as an effective alternative for data links in other field deployed scenarios – especially in harsh mountainous terrain, where poor or no line of sight makes radio or wireless signal impossible to propagate. Products are extremely effective in disaster recovery operations. In 2003 the British Army rolled out P3s as an improvement for its ‘out of barracks logistics and supply support’ system ‐ the UNICOM OOB. The Canadian Army trialed the product in an innovative Fire Control application where P3 provided data and voice command extensions from a ballistics computer to individual gun positions. Again, the use of copper as its communications medium is not only significantly cheaper than a fibre‐optics system; but increases functionality with seamless back up links using the spare P3 transmission channels in a more portable package. Inter‐coalition data links can be established with ease and extremely cost effectively by simply rolling out copper cable between two or more HQ or Civilian Agency elements within an area of operation. Subject to bandwidth requirement this may not always be practical but when the bandwidth demand is within P3 capability, this is a very effective C3 option.

CIVIL DEFENCE & EMERGENCY

Communications are of paramount importance in the management of emergency situations. In crises such as fire, flood or explosions, existing communications infrastructures are often damaged or destroyed, and an immediate task for emergency response teams will be to establish communications to and from the damage

  • site. There is a further

demand for interoperability

  • f equipment between civil

emergency response teams and the military. It is commonly thought that wireless communications provide an immediate and all‐encompassing solution. However, in a typical

slide-5
SLIDE 5

Page 5

“Tactical Data Links Over DON10” Defence Communications Industry Pty Ltd disaster area where no power and other infrastructure may be available it takes considerable time and resources to deliver and setup for wireless. As well, this technology has limitations in propagating in difficult terrain. In such disaster situations, P3s have a proven

  • functionality. A portable device that is weather proof

and independent of power or other infrastructures can be deployed on site instantly. Multiple P3s may be interconnected expediently with field wire (reinforced copper wire) thus creating an independent data and voice network to allow affected communities to exchange video, email, voice and other data sensory information. An issue which arises at the site of major disasters is the sheer number of personnel needing to communicate with each other. The presence of multiple government agencies and NGOs often results in their duplicating each other’s efforts and, more frequently, being unable to provide aid and relief due to unavailability of one or the other infrastructure. The P3 system, being compatible with industry data and voice networks as well as with each other, means an agency or NGO can tap in to the P3 communications, from initial through the ongoing stages of operation. The ease with which links are extended between relief camps and disaster area of

  • peration, makes it extremely

effective to reach personnel via voice, data or video; facilitate telemedicine capabilities and to

  • ffer affected groups contact with

the outside world.

FUTURE OF THE COPPER BASED TRANSMISSION

A number of technological developments in copper based transmission ensure a future path for tactical data modems that use copper cables. There are always its low cost, ease of use and repair factors when DON10 is compared to FOC system. However, advances in new modulation technologies are

  • ffering considerably higher data rates as well as

bandwidth aggregation. Coupled with modern battery chemistries offering weight reduction and increased power density, new product generation is not only getting smaller and lighter, but greatly expands its role in modern data links. One specific technology variant that was selected as a basis for P3 replacement was SHDSL ‐ allowing up to 15Mbs of symmetric bandwidth on a single pair of copper cable. A number of leading chipset manufacturer are integrating 4 SHDSL circuits in one chip; increasing the bandwidth to up to 60Mbs over comparable distance. Since 2010, Defence Communication Industry has been developing the new product generation (P4/P2), constantly revising its design to take advantage of evolving technologies and optimizing it for Defence use. Having conducted a number of successful trials, the new P4/P2 products are set for release from 4Q2013.

CONCLUSION

Over the period of 10+ years of product filed use by ADF and other Defence customers, it has been determined that numerous applications exist in defence and industrial markets for this type of products. The decisive factors are: dramatic rollout costs savings and minimal setup and maintenance. Copper continues to be a soldier friendly medium and P3/P4 resurrect its role in meeting today’s communications needs. While fibre optic will retain its role as the communications backbone, P3s provide an effective alternative to tactical data links on the brigade level and below. Its small size and stand‐alone operation make it a versatile means of extending data links especially in harsh terrain where laying out FOC is

  • difficult. This scenario is especially

pertinent to Disaster Relief operations. In short, there is still life left in the old copper cable and to paraphrase one Australian Army Signaler: “P3 is a DON10 resurrection equipment”. AUSTRALIAN ARMY FIELD TRIALS REPORT “New Technology – WD1A/TT (Don‐10) Network” Army uses fibre‐optic cable to provide a communications infrastructure for logistic support. The fibre optic cable, kevlar‐armoured especially for Defence, is an expensive medium and it suffers breakages from being caught up in the track link of tanks or broken by forklifts. These accidents, actual events during Exercise Phoenix, normally occur during night under blackout conditions. Although the fibre can be repaired, such repair requires return to base and expensive facilities. Army traditionally uses Don‐10 copper wire strands reinforced with strands of stainless steel wire to carry voice in the field. This cable, capable of withstanding

slide-6
SLIDE 6

Page 6

“Tactical Data Links Over DON10” Defence Communications Industry Pty Ltd heavy stress, still gets broken but is easily repaired by

  • users. Wire cable deployment is also considerably

easier to achieve than laying fibre optic cable. P4 xDSL was employed during Operation Phoenix and Crocodile West to prove an ability to replace fibre optic cable segments with Don‐10 on selected long runs. The following are some firsthand impressions and feedback from Army users of the Don‐10 technology on Operation Phoenix; “Soldiers understand this and they can fix it” (meaning wire and breaks that occur as

  • pposed to fibre optic cable); “Can I get some more;

“This is great”; and “Hey, it works”. Portable xDSL systems provide data rates over copper or steel cables that are acceptable with significantly reduced capital costs. P4 primary application during Operation Phoenix was to enable a transparent LAN extension within a large logistic area, located in the bush near Tindall. A number of specific future requirements have been

  • discussed. One such special development is a simple

back‐to‐back xDSL modem, providing the Army with rapid deployment multimedia infrastructure over copper cable. It greatly reduces the cost‐per‐line factor due to the elimination of the more cumbersome subrack assembly of a standard system. This technology successfully provided the logistic LAN backbone on Operation Crocodile West, 150 km SW of Tennant Creek, when fibre optic breakages and distance limitations proved difficult to overcome. The WD1A/TT (Don‐10) LAN extensions are robust, cost‐ effective and well‐accepted by soldiers. Tempest‐rated within the restricted environment, the solution is now a Defence Infrastructure standard within the strategic environment however it is not yet formally accepted in the tactical arena. end of rep.

Acknowledgment

The author wishes to acknowledge members of the Royal Australian Signal Corps whose ideas and enthusiasm were instrumental in driving this project

  • forward. The people on the ground really do have the

best ideas. Equally, we wish to acknowledge members of the ADF Field Deployed Logistics: project JP126 for their commercial and technical support from the project inception to its completion. A acknowledgment is given CISSO management team for integrating P3s in to their portfolio and subsequent product management. This paper is dedicated to all Signalers that helped and guided the product development and have been a constant source of inspiration.

REFERENCES

ETSI (European Telecommunications Standards Institute) ADSL standards and specifications: ETSI TS 101 388 and ETR 328 ETSI basic ISDN standard : ETSI TS 102 080 ETSI basic VDSL standard (incl. key functional and electrical requirements) : TS 101 270‐1 V1.2.1 and TS 101 270‐2 V1.1.1 SHDSL Technology Complementing Other Transport Technologies: M Rup, R Sernec, R Vodisek, E Sljivar ISBN: 0‐ 7803‐7763‐X

*Australian Army early deployment trial results: “New

Technology ‐ WD A/TT (Don‐10) Network”

*Case Study SDSS (a complete Field Deployed Logistics

solution)

*P3 Transmission over Copper ‐ Security” by A.Umansky, 2003 * The above material can be viewed at: www.defence‐comms.org

BIOGRAPHY

Alec Umansky began his career in 1981 in the telecommunications industry, with the then Telecom Australia (currently Telstra) in the area of Switching. Alec holds degrees in Digital Electronics and Communications and Advanced Microprocessor Design & Techniques. Joining Philips (Public Telecommunications Systems) in 1986 Alec worked on introduction of fibre‐optic transmission to major carriers with postings in Australia, Germany and UK. Returning to Australia in early 2000 and having obtained further diplomas in small business management and as a healthy contrast in contemporary music performance, Alec formed own company, Defence Communications Industry specialising in design, development and marketing of communications products for defence and industrial markets. Alec plays guitar, enjoys travelling and is an active AFCEA member. Defence Communications Industry Pty Ltd is a wholly Australian company, specializing in niche products for defence, disaster recovery and industrial applications. DCI’s motto is ‘Audeo Proesto’ ‐ Dare to Excel.

End of paper.

slide-7
SLIDE 7

Tactical Data Links Over DON10

  • Presentation Slides -

Defence Communications Industry Pty Ltd

  • Low Cost ‐ Approx 5% cost of fibre‐optics
  • High Speed

‐ 60Mbs / 8Km over copper

  • Easy to Use

‐ Lay anywhere fast, repair quickly

P4/P2 ‐ Tactical Data Links over DON10 P4/P2 ‐ Tactical Data Links over DON10

Field Deployable Tactical Data Links over Copper (DON10)

info@defence-comms.org / Tel +613 9523 9211 www.defence-comms.org

  • simple and effective alternative to fibre-optic data links
  • no tools or skills required for cable repairs
  • operationally proven and in service with Australian Army since 2001
  • effective operation in harsh terrain: mountains, caves, tunnels where line
  • f sight problems stops radio or wireless working
  • works up to 20Hrs on battery, -20⁰ to +80⁰ C, total weight 4.5Kg
  • ‘mini’ product variants for systems integration

1Km DON10 Pack & P4

  • Q. Why Use DON10 (copper) ?
  • Fibre is easily damaged, impractical to repair

& bulky to store & transport

  • Copper cables are fast simple to roll out,

retrieve, cheap and require no special tools

  • r training to repair
  • up to 90% of fibre is lost to damage within days

in a typical field deployed network

  • however, copper (DON10) is a very good conductor
  • f electrical signals
  • latest ‘shdsl‘ data transmission can utilise DON10

to the benefit of Defence tactical data links

  • P4s are DCI developed and ADF proven equipment,

providing simple and very effective alternative to FON

  • A. Use of DON10 & P4/P2 provides proven simple and effective alternative

to fibre based field deployed networks. REDEFINING A STANDARD IN TACTICAL DATA LINK WHY GO BACK TO COPPER? REDEFINING A STANDARD IN TACTICAL DATA LINK WHY GO BACK TO COPPER?

slide-8
SLIDE 8

Tactical Data Links Over DON10

  • Presentation Slides -

Defence Communications Industry Pty Ltd

Optic Fibre = 2km CAT 5 = 90m RF = 150m Don 10 = 5km

LMC

Hub

Maintenance

Hub

Distribution

RF CAT 5

Unit B Echelons

BMA - SDSS Army’s Computerised Logistics

All units use SDSS, as their statutory record. FLMS is their fullback network database. FLMS transactions are applied to SDSS when communications are regained.

UNITS 2 Cav A Sqn B Sqn

5/7 RAR

Units forward of the BMA use FLMS, they pass information to the BMA by HF, VHF

  • r Disk

FLMS FLMS FLMS FLMS

FLMS Hub

Army Trial at ‘Crocodile West’, Tennant Creek - 1999’ Army Trial at ‘Crocodile West’, Tennant Creek - 1999’ COST COMPARISON - Army Trial ‘Crocodile West’ - 1999 Fibre-Optic Based DLAN v/s DON10 based P3s

  • cost factor of about 40
  • no loss of functionality
  • simpler and easier to roll out, retrieve and repair
  • soldiers say: “hey it works”

COST COMPARISON - Army Trial ‘Crocodile West’ - 1999 Fibre-Optic Based DLAN v/s DON10 based P3s

  • cost factor of about 40
  • no loss of functionality
  • simpler and easier to roll out, retrieve and repair
  • soldiers say: “hey it works”
slide-9
SLIDE 9

Tactical Data Links Over DON10

  • Presentation Slides -

Defence Communications Industry Pty Ltd

15Mbs at 600m 9Mbs at 3.4Km 5.1Mbs at 6km 3.3Mbs at 11.3km

P4/P2 - Transmission Performance over DON10

single transmission channel – various modulation & DON10 lengths

max distance examples: 1.9Mb over 19Km 900Kbs over 28Km 384Kbs over 38Km

  • above examples use manual ‘P4’ setup
  • note: various data modulations are used

to achieve performance ‘Zero Mode’ setup allows plug & forget functionality at 6Mbs

P4/P2 - SECURE TRANSMISSION OVER COPPER

  • Key Points -

P4/P2 - SECURE TRANSMISSION OVER COPPER

  • Key Points -
  • inherent ‘off the shelf’ security in the P4/P2 is a ‘one time pad’ equivalent
  • multiple layer security implementation with complex signal processing:
  • SHDSL is ‘Trellis’ coded, pulse amplitude modulation
  • defined by the ITU-T G991.2 standard but proprietorially

implemented by chipset manufacturers

  • P4/P2 offer multiple PAM modulation standards to cope

with a wide range of copper and distance factors

  • ‘Zero Mode’ auto configuration, unique to P4/P2

introduces specific control and handshake bits into the transmission stream and can not be deciphered by other equipment

  • low power transmission (1W max), driven directly

into copper i.e. no signal emissions

  • ‘Auto Bandwidth Aggregation’ further scrambles data whilst provides

redundancy and increases bandwidth

  • further user level security by network protocols

(MAC filtering, SSH, Radius, SNMPv3) and device access passwords

  • further ‘government level’ security is established with the use of cryptos

9Mbs at 3.4Km

slide-10
SLIDE 10

Tactical Data Links Over DON10

  • Presentation Slides -

Defence Communications Industry Pty Ltd

Tunnels or Underground Data/Voice Extensions

  • fire-proof telemetry
  • air-quality monitoring
  • fan activation
  • alarm activation
  • emergency voice channels
  • gas, electricity conduits
  • Oil pipelines
  • Video/Audio Surveillance
  • (SCADA Upgrades)

Naval Bases - Ship to Side Data/Voice Links

Ship to Port (Side) LAN Extension : distances of up to 8Km

  • ptionally encrypted links

Additional Applications : Video Conference, Data Logging, Remote Control, Sensors and others

Remote Video & Sensor Monitoring & High Level Data Security

Secure C3 link to HQ Application Examples

  • high resolution video with remote pan/tilt/zoom controls of the camera
  • extending bomb disposal and NBCR monitoring and sensors to safer areas
  • use of serial cryptos with IPTube provides wider diversity of data traffic on

existing P3 links (and eliminates the use of Wireline adapterts)

Video Link Extensions

Video Links with IP Cameras ‐ a ‘spare’ pair of eyes ‐ data and a voice link ‐ remotely accessible at any P3 ‐ MP monitoring movements of large bases

EXAMPLES OF POTENTIAL APPLICATIONS EXAMPLES OF POTENTIAL APPLICATIONS

P3 – Artillery Fire Control

Ballistics Computer Voice and Data Links the Gun Battery

Ballistics Computer

Data Terminal (PC)

  • P3 provides Ethernet &

voice extension over copper

  • 2 spare channels are available

for further voice/data links Additional DON10 link for redundancy Data transfer example using COTS

  • P3 provides transparent Ethernet over

copper to all remote P3s

  • using the NetMeeting application

individual links are established by ‘calling’ remote P3 ‘IP’ address

  • spare channels can be used for links

to other P3s or for redundancy

P3/P4/P2 provide simple and effective distribution of data for ‘fire solution’ systems over DON10 links used for voice commands (e.g. TANOY) P2 - compact 2 channel that’s easily integrated within any existing systems

slide-11
SLIDE 11

Tactical Data Links Over DON10

  • Presentation Slides -

Defence Communications Industry Pty Ltd

Copper Cable (“DON10”/Combat Wire/etc) Encrypted Data and Voice Links 3..5Km

Airfield Defence & Rapid Comms Deployment Airfield Defence & Rapid Comms Deployment

Air Traffic Controllers Logistics/Supplies

Ordnance, etc. Data links to deployed logistics etc. Data, Voice and Video distribution to users

Remote Video Monitoring, Sensors, etc.

Remote Video Monitoring, Sensors, etc. IP Addresses Assignment Camera 192.168.1.020 P4-FD 192.168.1.014 P4-ND 192.168.1.011 P2-ND 192.168.1.012 Laptop 192.168.1.007 VoIP adapters: 192.168.1.031 192.168.1.033

P4-P2 demo setup

15Mbs 6Mbs 6Mbs 6Mbs 18Mbs

Auto BW aggregation

P4-FD P4-ND

P2-ND 192.168.1.12 Ch1=Master Ch2=Slave EXT=ON, PAM=128 192.168.1.20 192.168.1.11 Ch1..3 Ext=OFF Ch4=EXT ON, MASTER 192.168.1.14 ‘Zero Mode’ configuration EXT=OFF 192.168.1.7