Introduction to LINK 16/MIDS LVT
MilCIS 2010
Mr. Tim Trudeau ViaSat, Inc. 9-11 November 2010
ViaSat Proprietary
Topics of Discussion
Link 16 MIDS Low Volume Terminal (LVT) Small Tactical Terminal (STT)
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Acronyms
Acronym ACA ADDSI AIU AV MUX AP ARINC BCP BIM BIT BOM CCA CCI CCPD CDH CIK COMSEC CNI CPSM CSCI CSS CT3 CTT CV CVLL CVSD DCA DDP DLA DTD DME DP/A DS EDAC ETI EW FDL FIM FOM IEJU IPF IPS Definition Alternating Current Adapter Army Data Distribution System Interface Antenna Interface Unit Avionics Multiplexer Adaptable Parameter Aeronautical Radio, Inc. Boot Computer Program Bus Input Message Built In Test Bus Output Message Circuit Card Assembly Cryptographic Controlled Item Current Crypto Period Designator CTIC DS101 HYBRID - COMSEC TRANSEC Integrated Circuit Cryptographic Ignition Key Communications Security Communication Navigation Identification Continuous Phase Shift Modulation Computer Software Configuration Item Computer Support System Common Tier 3 Capable To Transmit Cryptographic Variable Cryptographic Variable Logic Label Continuous Variable Slope Delta Direct Current Adapter Digital Data Processor Data Link Address (Link 4A) Data Transfer Device Distance Measurement Data Processor/Aviation Multiplexer Data Silent Error Detection and Correction Elapsed Time Indicator Electronic Warfare Fighter Data Link Functional Input Message Functional Output Message Initial Entry JTIDS Unit Internal Protection Feature Internal Power Supply Acronym FOM HPA HIA HUR IBIT IE ICD IPS JNDA JTRS KBPS LEGS LIFE LinkS/S LIFT LMS LPC LRU LTTI LVT MIB MIDS MOS MSEC MSG MT NC NDL NMDC NPG NTR NVRAM OBIT OCP OFP P2DP P2SP P4SP RRN RS (1&2) RTI Definition Functional Output Message High Power Amplifier High-Power Interface Adapter High Update Rate Manually Initiated BIT Information Exchange Interface Control Drawing Internal Power Supply Joint Network Design Aid Joint Tactical Radio System Kilo Bytes Per Second Link Environment Gateway Simulator Link 16 Initialization File Editor Link Simulator/Stimulator Link 16 Flightline Tool Link Monitor System Linear Predictive Coding Line Replaceable Unit Long Term Transmit Inhibit Low Volume Terminal Master Interconnect Board Multifunctional Information Distribution Systems MIDS On Ship Message Security Message Main Terminal Navigation Controller Network Design Load Network Management Design Center (RNLAF) Network Participation Group Network Time Reference Non-Volatile Random Access Memory Operational Built In Test Operation Computer Program Operational Flight Program Pack Two Double Pulse Pack Two Single Pulse Pack Four Single Pulse Recurrence Rate Number Receiver Synthesizer Receive/Transmit Interface Acronym PA PPLI PR PTN RELNAV RNLAF RPS RTT-I RTT-R Rx SBIT SMP SNC SRU SSS STDP TACAN TCV TDMA TDL-16 TIM TIO TOA TOD TOM TP/G TR TSA TSDF TSEC TSR Tx UAS UHF VAST VME VP Definition Power Adapter Precise Participant Location & Identification Position Reference Primary Track Number Relative Navigation Royal Netherlands Air Force Remote Power Supply Round Trip Timing (interrogate) Round Trip Timing (reply) Receive Start-up Built In Test Signal/Message Processor Secondary Navigation Controller Shop Replaceable Unit System Segment Specification Standard Double Pulse Tactical Air Navigation Transmission Crypto Variable Time Division Multiple Access Tactical Data Link 16 Terminal Input Message Tailored Input/Output Time Of Arrival Time of Day Terminal Output Message Tailored Processor / Ground Multiplexer Time Refinement Time Slot Assignment Time Slot Duty Factor Transmission Security Time Slot Reallocation Transmit User Application Service Ultra High Frequency ViaSat Analysis Support Tool Versa Module Eurocard Voice Processor
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What is Link 16?
Link 16 is a tactical data link used to exchange real time tactical information between units of a force.
Link 16 is identical in purpose to Link 11 and Link 4A with improvements in data exchange, link establishment, and security Uses J-Series messages
Link 16 is often referred to as TDL J
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Data Link Requirements
Orderly Transition
Connectivity
Range
Relay Capability
Survivability
Relative Navigation Net Entry Identification
Message Format Compatibility Electromagnetic Compatibility Joint/Combined Force Capability
System Capacity
Flexibility Low Error Probability
Jamming Resistance Information Security
Low Probability of Intercept Passive Operations
Multi-netting
Digital Data Formatting
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TDL Transformation Operational View
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J-Series Message Overview
Network Management Track Management
J7.0 J7.1 J7.2 J7.3 J7.4 J7.5 J7.6 J7.7 J8.0 J8.1 J9.0 J9.1 J10.2 J10.3 J10.5 J10.6 J12.0 J12.1 J12.2 J12.3 J12.4 J12.5 J12.6 J12.7 Track Management Data Update Request Correlation Pointer Track Identifier IFF/SIF Management Filter Management Associated Unit Designator Mission Correlator Change Command Engagement Coordination ECCM Coordination Handover Controlling Unit Report Pairing Mission Assignment Vector Precision AC Direction Flight Path Controlling Unit Change Target/Track Correlation Target Sorting Target Bearing
Electronic Warfare
J14.0 J14.2 J15.0 J16.0 J17.0 J28.0 J28.1 J28.2 J28.3 J28.4 J28.5 J28.6 J28.7 EW Parametric EW Coordination & Control Threat Warning Imagery Weather over target US National 1-Army US National 2-Navy US National 3-USAF US National 4-USMC FR National 1 FR National 2 US National 5-NSA UK National 1 OTAR Management OTAR No Statement
J0.0 Initial Entry
J0.1 J0.2 J0.3 J0.4 J0.5 J0.6 J0.7 J1.0 J1.1 J1.2 J1.3 J1.4 J1.5 J1.6 J2.0 J2.4 J2.6 J3.0 J3.1 Test Message Net Time Update Time Slot Assignment Radio Relay Control Repromulgation Relay Comm Control TSR Announcement Connectivity Interrogation Connectivity Status Route Establishment Acknowledgment Communication Status Net Control Initialization Needline PG Assignment Indirect Interface Unit PPLI Subsurface (Maritime) PPLI Land Ground Track PPLI Reference Point Emergency Point
Threat Warning
National Use
Weapons Coordination & MGMT
Precise Participant Location & ID
J2.2 Air PPLI J2.3 Surface (Maritime) PPLI J2.5 Land Ground Point PPLI
Surveillance
Other Control
J31.0 J31.1 J31.7
RTT-A RTT-B
RTT Addressed RTT Broadcast
RTT-REP RTT Reply
J3.2 J3.3 J3.4 J3.5
J3.6 J3.7 J5.4 J6.0
Air Surveillance Track Surface (Maritime) Track Subsurface (Maritime) Track Platform & System Status Land Ground Point/Track J13.0 Airfield Status
Space Track Message EW Product Information Acoustic Bearing/Range Intelligence Information J13.2 J13.3 J13.4 J13.5
STANAG 5516
Air Platform Status Surface Platform Status Subsurface Platform Status Land Platform Status
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Introduction
Link-16 does not significantly change the basic concepts of the tactical data link information exchange. Provides technical and operational improvements to existing data link capabilities. Link-16 uses Joint Tactical Information Distribution System (JTIDS) and the Multi-Functional Information Distribution System (MIDS) terminals (which are the communication component of Link-16)
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Link 16 Terminals
Joint Tactical Information Distribution System (JTIDS)
JTIDS refers to the communications component of Link 16 and includes the Class 2 terminal family software, hardware, and RF equipment.
Multifunctional Information Distribution System (MIDS)
MIDS also refers to the communications component of Link 16 and includes the MIDS Low Volume Terminal (LVT) 1, LVT 2 and LVT 3 family of terminals software, hardware, and RF equipment.
MIDS Joint Tactical Radio System (JTRS)
Software configurable tactical radios providing LOS/BLOS Link 16 and other C4i communication capabilities to the warfighters.
Small Tactical Terminal (STT)
STT is a new generation of Link 16 and V/UHF Data radio that is designed for the tactical edge user. Smaller size, weight, and power make it a perfect fit for mobile ground/surface and light aircraft applications.
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Link 16 Features
Link 16 includes many features that improve data exchange normally seen on Link 11
Jam resistance Improved security Increased data rate Increased amounts and granularity of information exchange Digitized, jam-resistant, secure voice capability Relative Navigation Precise Participant Location and Identification (PPLI) improvement
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Link 16 Architecture
Architectural Characteristics
TDMA Format Nodeless Architecture Message and Transmission Security Spread Spectrum, Frequency Hopping Waveform in the UHF Lx Band
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Link 16 Features
Link 16 uses Time Division Multiple Access (TDMA)
Automatic function of the Link 16 terminals that uses time interlacing to provide multiple communications nets. Each JU uses pre-assigned sets of time slots to transmit their data and receive data from other units. TDMA uses Epochs, Frames, and Time slots as a means of dividing time.
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The Network
TDMA Division of Network Time 1 Day = 24 hours 1 Day = 112.5 Epochs 1 Epoch = 12.8 min 1 Epoch = 64 Frames 1 Epoch = 98k time slots 1 Frame = 12 seconds 1 Frame = 1,536 Timeslots (3 sets of 512) 1 Timeslot = 7.8125 msec
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Link 16 Features
Nodeless
A Node is a unit needed to establish and maintain connectivity. Link 11 Net Control Station (NCS) is a Node for the link operations. If the NCS or Node goes down, the link goes down as well. Link 16 does not require a Node to establish and maintain connectivity. Link 16 uses Timeslots as part of the TDMA protocol to exchange information regardless on who enters and exits the link. Link-16 does include the idea of a Net Time Reference (NTR), but this can be a redundant entity and the network can operate effectively for a time if the NTR drops out.
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Link 16 Security
Message Security
MSEC is a crypto variable used to encrypt the message data the terminal is processing from the host The TSEC is a crypto variable used to control specific features of the Link 16 waveform.
Frequency Hopping Pattern Amount of Jitter Pseudorandom pattern of noise mixed with the signal prior to transmission
Transmission Security
Cryptographic Keying
These security settings are stored in a set of cryptographic keys that must be loaded into the terminal prior to operation on the network
Link-16 terminals will not transmit without a valid crypto key load
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Link 16 Frequency Spectrum
Link 16 is in the Lx Band of the UHF spectrum.
Link 16 uses 51 frequencies within 9601215 MHz band for transmissions. The frequency is not held constant and uses a pre determined hopping pattern to aid in anti-jam capabilities. The frequency is changed every 13 microseconds.
Because Link 16 uses UHF transmissions, you are limited to each units LOS.
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Waveform Characteristics
MF HF VHF UHF L Band Lx SHF
Military HF
2 30 MHz
Search Radars JTIDS Frequency Band
960 1215 MHz
Military VHF
30 300 MHz
Military UHF
225 400 MHz
Frequency: 960-1215 MHz (Lx Band)
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Waveform Characteristics
Spreads information in the frequency/time domain and creates JTIDS pulses using pseudorandom code sequences.
14 FREQS
6 FREQS
32 FREQS
960
1030
1090
1215
969
1008
1086
1113
1206
51 TOTAL CENTER FREQUENCIES SPACED AT 3MHz INTERVALS
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Waveform Characteristics
The Link-16 Network
FRAME: the basic unit of recurring time for LINK-16 Each FRAME is 12 seconds in length composed of 1536 timeslot
Each timeslot is 7.8125 milliseconds (msec) Three sets of 512 timeslots each sets A, B and C Each timeslot has a designation, such as: A-0, B-123, or C-512
12 sec = 1frame
Set A Set B Set C 7.8125 msec 1 timeslot, ex: C-214
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Waveform Characteristics
Timeslot Format
The JTIDS/MIDS Terminal accepts LINK-16 words from the host computer via the 1553 BUS, Ethernet or X.25 and turns this data into a stream of pulses.
JITTER SYNCH HEADER MESSAGE PROPAGATION
JITTER: SYNCH:
VARIABLE START INTERVAL SYNCHRONIZATION PREAMBLE ALLOWS RECEIVING TERMINAL TO ID MESSAGE.
HEADER: MESSAGE: PROPAGATION:
ADDRESS BODY OF DATA COMPOSED OF DATA 1 & 2 TIME PERIOD ALLOWED FOR TRANSMISSION PROPAGATION.
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Waveform Characteristics
DATA Packing Structure: The Link-16 Terminal can produce different timeslot formats depending upon the type of message supported, throughput demand, and required anti-jam performance
Standard Double Pulse Packed 2 Single Pulse Packed 2 Double Pulse Packed 4 Single Pulse Also Enhanced Throughput Formats ET0 through ET4
Give 10X increase in potential throughput
Standard Double Pulse Jitter S
16x2
TR H
4x2 16x2
D1
93x2
Propagation
Packed-2 Single Pulse Jitter S
TR H
D1
93x1
D2
93x1
Propagation
16x2 4x2 16x2
Packed-2 Double Pulse
S TR H
4x2 16x2
D1
93x2
D2
93x2
Propagation
Packed-4 Single Pulse
S TR H S TR
D1 D2 D3 D4 H D
Propagation = Header = Data
4x2 16x2 93x1 93x1 93x1 93x1
= Sync = Time Refinement
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Waveform Characteristics
Net Entry
Link-16 uses Specific messages to achieve synchronization between terminals on the network COARSE SYNC is achieved by terminals hearing J0.0 Initial Entry message transmitted in timeslot A-0.
This ensures the terminal has the correct cryptographic key settings and has line-of-sight to the network NTR. Terminals in COARSE SYNC can receive but not transmit messages
FINE SYNC is then achieved by the passing of special messages called Round Trip Timing messages between the user terminal and the Network Time Reference.
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Link 16 Features
RTT-I = Round Trip Timing Interrogation RTT-R = Round Trip Timing Reply S = Sync T = Time Refinement
NTR
RTT-I RTT-R
7.8125 MILLISECOND TIME SLOT S T RTT-I .936 MSEC PROPAGATION (RTT R DELAY) 3.339 MSEC S T RTT-R PROPAGATION 2.6015 MSEC
.936 MSEC
Round Trip Timing
User Terminal
Net Time Reference (NTR):
Transmit an RTT Interrogation (RTT-I) in the beginning of the slot and receive an RTT Reply (RTT-R) later in the slot. Receive an RTT-I in the beginning of the slot and transmit an RTT-R later in the slot.
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Link-16 Enhanced Usage Capabilities
Stacked Multi-Net Operation
Multiple Link-16 networks can operate simultaneously in the same geographic area at the same time.
Link-16 network definitions can utilize multiple Net numbers to achieve this This can significantly enhance operational and training capability
TIME
NET 1 F R E Q U E N C Y NET 2 NET 3
EXAMPLE WITH 3 OPERATING NETS OPERATING DIFFERENT HOPPING PATTERNS ViaSat Brings Your Network To Life
Link-16 Enhanced Usage Capabilities
Relay Transmitting received link 16 information in one or more timeslots then later transmitting this information in other timeslots. Relay modes:
Paired Slot Relay Most basic type of relay. Contains 6 types of relay functions. Repromulgation Relay Used by ground platforms when LOS does not exist and a relayer is not available Addressed Relay -- Used with specific needline participation groups. Useful when multihop relay is required to meet the desired functional connectivity
Voice Link-16 supports dual-channel voice circuits
Can run at 16Kbps or 2.4Kbps to support multiple national formats Requires about slot utilization of the frame Only works when the terminal is in the network
Access Modes Link 16 also has several access modes to exchange data and increase the number of users.
Dedicated Access Mode one slot, one transmitter Contention Access Mode one slot, multiple possible transmitters Time Slot Reallocation one slot transmitting from a pool of transmitters
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Link-16 Enhanced Usage Capabilities
Network Participation Groups:
Link 16 uses these to allocate network capacity per user based on the functions users would like to participate in. These NPGs act as virtual circuits to exchange specific assigned data. A maximum 512 groups can defined, many are set for common use in functional areas:
RTT (NPG 2 & 3) Precise Participant Location and Identification (PPLI) and Status (NPG 5 & 6) Surveillance (NPG 7) Electronic Warfare (NPG 10) Weapons Coordination (NPG 8) Air Control (NPG 9) Fighter to Fighter (NPG 19, 20) Secure Voice (NPG 12 & 13)
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Link-16 Network Coordination
Link-16 Networks are defined prior to use in general Link-16 is NOT an ad-hoc capability
Network Design Facilities (NDFs) are defined for each country and service in each country and are responsible for setting up the Networks for exercise and operational usage. A Network Design tool such as JNDA or TNDL generates the network design and specific Network Data Load (NDL) files for each terminal on each platform.
Voice-A-R (112 Voice-A (112) A/C (32) A/C (8)
Net 127
~~ ~~
NPG401 (48)
Net 126
NPG16 (224)
Net 121
PPLI-A (32)
F/F (160)
L/F (96)
Net 1
SURV-R (170)
M/MGT-R (60)
SURV (42) PPLI-B-R (31) PPLI-B (31)
SURV-R (24) SURV (24) SURV-R (24) SURV (24) SURV (8) SURV (8)
SURV-R (48)
M/MGT-R (8) M/MGT (8) M/MGT (24)
SURV (128)
M/MGT (60)
I-PPLI-R (8) I-PPLI (8) I-PPLI-R (8) I-PPLI (8)
PPLI-B (16)
PPLI-B (96)
RMSG (16)
SURV (16) SURV (8)
SURV (48)
SURV (48)
EW (36) EW-R (30) EW (30)
RTT-B (8)
Net 0
279
546
658
862
970
1146
1530
Remarks: 1. Default Net = Net 0 2. Numbers in parenthesis () indicate slots per frame for each slot block 3. Dashed left border (---) indicates Relayed slot block (also noted on label)
Timeline Color Code: NPG 3 - RTT-B (contention) NPG 5 - PPLI and Status: Pool A NPG 6 - PPLI and Status: Pool B NPG 7 - Surveillance NPG 8 - Weapons Coordination NPG 9 - Air Control NPG 10 - EW Electronic Warfare
NPG NPG NPG NPG NPG NPG NPG
12 - Voice Group A 14 - Indirect PPLI 16 - IP Over L16 19 - Fighter-to-Fighter 20 - Fighter-to-Fighter (contention) 29 - Residual Message 400/401 - Needline
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Link 16: Todays Tactical Network
Link 16 Supports the following in theater Blue Force SA (PPLI) Digital Air Control Electronic Warfare Secure Voice Weapons Coordination Free Text Messaging
Sample L-16 Platforms
Link-16
Sample Emerging L-16 Platforms
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Link-16 - Connecting Combat Systems
FR Roland
GE/IT/SP EF2000
F/A-18 Hornet FR Rafale THAAD
USAF F-16
Airborne Laser F-15 A-E IT Tornado
Aircraft Carrier
Link-16
Patriot
JTOAM/MCE Joint STARS
E-2 Hawkeye Rivet Joint UK F-3 Tornado F-14D Tomcat AEGIS CG
FAAD E-3 Sentry
F-15C Eagle
MIDS Platforms JTIDS Platforms
JTIDS and MIDS Equipped platforms are fully interoperable
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Link 16 Next Steps
There are around 5,000 Link-16 capable terminals in the world and the number will continue to grow
However, the interest is now in dual- or multi-usage terminals that give multiple datalink capabilities Most users still consider Link-16 as a backbone communications technology
Link-16 Sustainment Programs funded beginning next year
Frequency Remapping enabling the number of frequencies to be changed based on other needs Enhanced Throughput enabling more capacity per each timeslots worth of data Modernized Crypto enabling a cryptographic upgrade for more diverse security protocols
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MIDS Low Volume Terminals
ViaSat Proprietary
System Identification
The Multifunctional Information Distribution System (MIDS) is a tactical information radio system designed to provide Link 16 capabilities to air, land and marine platforms Including those with limited space, power and cooling air MIDS equipment provides these capabilities: Integrated position determination Navigation and identification Voice and Data communications
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MIDS Variants
MIDS Terminals were created in many variant types to serve many diverse platforms
The platforms referenced below are made by ViaSat The LVT-11 was created after others as a new platform and there are other new platforms planned.
-(1) Link 16 Voice TACAN F/A-18 RAFALE TORONADO E/F-18 LVT-1 Configurations -(4) -(6) Link 16 Voice TACAN ARMY Platforms Patriot Missile Lab Env Link 16 -(7) Link 16 LVT-2 Configurations -(2) -(11) Link 16 Link 16 Voice
Configuration Type Variant Tadil J Capability Voice Capability Navigation Capability
Platforms Supported
ShipBoard Lab Env
F-16 A-50
Airborne Laser B-2
ARMY Platforms Lab Env
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MIDS LVT(1) Terminal Identification
The MIDS Low Volume Terminal (LVT)-1 System (and variants) consists of two Line Replaceable Units (LRUs):
Main Terminal referred to as the TERMINAL Remote Power Supply (RPS) Three ancillary equipment LRUs:
AC RPS Power Adapter LRU (ACA) DC RPS Power Adapter LRU (DCA) High Power Amplifier Interface Assembly LRU (HIA)
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Terminal Capabilities
Power and Cooling provided by Platform ECS
Power can be +/- 140VDC or 115VAC 3-phase (400 Hz)
200W maximum power output Dual antenna & receiver for stronger signal reception Fully Airborne and Shipboard environmental qualified Multiple host interface capability
MIL-STD-1553 and Ethernet Platform D are primary usages
Simultaneous TACAN capability available in some variants Voice capability available in some variants
16 or 2.4 Kbps Dual Independent Channels
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MIDS LVT(1) System Nomenclatures
Low Volume Terminal (LVT), RT-1840C/U, Part No. VA018150-0030/0031 Remote Power Supply (RPS), PP-8476/U, Part No. VA016308-0002
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MIDS LVT(1): Interfaces to Host Platforms
Accomplished via the I/O (Input/Output) section, the following interfaces are provided: Avionics Data Bus Interface
MIL-STD-1553 X.25 (non-operational) currently Platform D ethernet 3910 Data Bus Support Equipment
Antenna Interface Secure Data Unit (SDU) DS-101 Interface TACAN Signal (only certain variants) Timing, Suppression and Indicator Signal Interfaces Voice Interface (only certain variants) Prime Power Interface Cooling Air Interface High Power Amplifier Interface (only certain variants)
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MIDS LVT(1) Shop Replaceable Units
12 Shop Replaceable Units make up the MIDS LVT-1 (and Variants) R/T LRU:
A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12
Voice Processor Assembly (VP) Tailored Processor/Ground MUX (TP/GMUX) Data Processor/Avionics MUX (DP/AMUX) Signal/Message Processor (SMP) RT Interface/Discrete Assembly (RTI/DA) Receiver/Synthesizer 1 (RS1) Receiver/Synthesizer 2 (RS2) TACAN Programmed Assembly (TAC) Exciter/IPF (EXC/IPF) Internal Power Supply (IPS) RF Power Amp (PA) Chassis and Harness Assembly
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MIDS LVT (1) Functional Layout
JTIDS High Power Amplifier
L-Band Antennas
DS-101
Receiver/ Synthesizer Receiver/ Synthesizer
RS-422 Control/Status Bus
COMSEC I/F
1553
SMP
VME Bus
DP/ AV MUX
Support Port
3910
TACAN Exciter/ IPF
RTI/ Discretes
TP/ GND MUX
Ethernet
Discretes
Voice
Voice I/F 2.4 Kbps LPC10 16KBPs CVSD
Internal Power Supply (IPS)
Remote Power Supply (RPS)
115VAC, 400Hz 3 Phase or + 140VDC
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Host I/Fs
RF AMP RFA
AIU
MIDS LVT (1) System Software
The Computer Software Configuration Items (CSCIs) that make up the MIDS LVT-1 (and variants) systems are:
Core Processor CSCI (COR) Tailored Input/Output CSCI (TIO) Signal/Message Processor CSCI (MSG) Voice Data Processor CSCI (VCE) TACAN Processor CSCI (TAC)
Software Revisions, Block Cycle 5 (BC5)
CORE 9.01/9.01A Signal Message Processor 5.03 TACAN CSCI 2.6.0 Voice CSCI 1.02 TIO CSCI BU Tailored Processor TPV15R0/R1 Engineering Release (I.E.., ER-5A)
Avionics Control Processor ACPV15R0 Ground Control Processor GCPV6R2
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MIDS LVT(2) Terminal Identification
The MIDS LVT-2 System (and its variants) consists of four LRUs:
Main Terminal Referred to as the R/T Power Supply Assembly (PSA) Cooling Unit (CU) Mounting Tray Two Ancillary Equipment LRUs:
High Power Amplifier Interface Assembly LRU (HIA) Cable Set
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Terminal Capabilities
Self-Contained Power and Cooling
Power can be 115/220VAC 50-400Hz single-phase or 28 VDC
200W maximum power output Single antenna and receiver Fully ground qualified and partially air and sea qualified for environmental use (full qual pending) Multiple host interface capability
X.25 (legacy air defense) Extremely versatile Platform J/JREAP-C Ethernet host compatible
Have created test variants that can pass IP data over ethernet
Voice capability available in LVT(11) variant
16 or 2.4 Kbps Dual Independent Channels
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MIDS-LVT(2) System Nomenclatures
Radio Terminal Set Receiver/Transmitter PSA Cooling Unit Mounting Base
AN/USQ-140(V)2(c) VA-019050-0030/31 VA-016311-0002 VA-016310-0003 VA-016309-0002
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MIDS LVT(2): Interfaces to Host Platforms
Accomplished via the I/O (Input/Output) section, the following interfaces are provided: Avionics Data Bus Interface
X.25 Platform J / JREAP-C Ethernet Support Equipment
Antenna Interface Secure Data Unit (SDU) DS-101 Interface Timing, Suppression and Indicator Signal Interfaces Voice Interface (only certain variants) Prime Power Interface Cooling Air Interface
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MIDS LVT(2) Shop Replaceable Units
Nine Shop Replaceable Units make up the MIDS LRU:
A1 Voice Processor Assembly (VP) (Optional) A3 Data Processor/ADDSI (DP/A) A4 Signal/Message Processor (SMP) A5 RT Interface/Discrete Assembly (RTI/DA) A7 Receiver/Synthesizer 2 (RS2) A9 Exciter IPF A10 RF Power Amp (PA) A11 Internal Power Supply (IPS) A12 Chassis and Harness Assembly
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MIDS LVT(2) Functional Layout
JTIDS High Power Amplifier
L-Band Antennas
DS-101
COMSEC I/F Ethernet
RS-422 Control / Status Bus
EMPTY Receiver/ Synthesizer
SMP
VME Bus
DP/ Dual ADDSI EMPTY
Support Port
X.25
C O O L I N G U N I T
AIU RF AMP RFA
EMPTY Exciter/ IPF
RTI/ Discretes
Voice (opt)
Discretes Voice I/F 2.4 Kbps LPC10 16KBPs CVSD
Internal Power Supply
Power Supply Assembly
110/220VAC, 50/60Hz (Single Phase) or 28VDC
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MIDS LVT(2) System Software The Computer Software Configuration Items (CSCIs) that make up the MIDS LVT-2 (and variants) system are:
CORE/SIA Army Data Distribution Subscriber Interface (ADDSI) Signal/Message Processor CSCI (MSG) Voice Data Processor CSCI (VCE)
Software Revisions, Block Cycle 3 (BC3)
CORE 7.01/SIA 5.01 ADDSI 2.01 Signal Message Processor 5.03 Voice CSCI 1.02
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MIDS LVT Troubleshooting, Diagnostic and Maintenance: LVT 3 Description
AN/USQ-140(v)3
RT P/N: P600A075 -30 or -33 or -34
Full Link 16 interoperability 50 watt transmit power Dual antenna transmit and receive Maximum weight of 55 lbs RPS PP-8477
Input Power:
115 VAC, 400 Hz
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MIDS LVT Troubleshooting, Diagnostic and Maintenance: Shop Replaceable Units (LVT 3)
Nine Shop Replaceable Units make up the MIDS LRU: A3 Data Processor/Avionics MUX (LVT 3) A4 Programmable Signal/Message Processor (LVT 3) A5 RT Interface/Discrete Assembly (LVT 3) A6 Receiver/Synthesizer 1 (RS1) A7 Receiver/Synthesizer 2 (RS2) A9 Exciter/IPF (LVT 3) A10 Internal Power Supply (IPS) A11 RF Power Amp (LVT 3) A12 Chassis and Harness Assembly (LVT 3)
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49
Small Tactical Terminal
ViaSat Proprietary
Link 16 at 25% reduced swap
STT
LVT 1
Size :4.1 Litres Weight: 8.6 Kgs Power: 114W at full rated transmit (50W at 20% TSDF)
Size: 16.4 Litres Weight: 23.26 Kgs Power: 350W at full rated transmit (200W at 70% TSDF)
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Design Overview
STT is designed to be a low cost, low volume, data link terminal capable of running Link 16 or UHF LOS Waveforms STT is designed to meet the needs of users who have space and weight constraints but want to take advantage of the information available on Link 16 and/or Tactical UHF Networks
Situational Awareness and Surveillance to the Tactical Edge Command and Control with Disadvantaged Users Blue Force Position and Status Reports Interoperable with JTIDS and MIDS Radios Interoperable with UHF LOS (MIL-STD-188-220 B/C/D) with PRC-117, PRC-152, ARC-210 (RT-1824), Improved Data Modem (IDM)
ViaSat Brings Your Network To Life
Production Model Characteristics
Frequency Range: 30 to 512 MHz VHF/UHF 960 to 1215 MHz Link 16 (Frequency Remap)
Transmission Simplex or half-duplex Modes: 16 kbps data, PT or CT L16 TDMA, All Op modes and Enhanced Throughput Antenna Ports: DC Power Input: UHF: 50 Link-16 (2): 50 28 VDC per MIL-STD-704F 1.5A Rx, <10A Tx
Power Output: 250 mW to 5 W (UHF) 50 W (L-16) with 20% TSDF Data Interface: Ethernet 10/100baseT Dimensions: 12.4cm x 14.2cm x 22.9cm (W x H x D) +6.2cm D Front Panel (Fan Option add 7.62cm 8.6 Kg
Rear) Weight: Crypto Modes: KY-57, ANDVT/KYV-5 KG-84C, KGR-96, KGV-8, KGV-11 ViaSat Brings Your Network To Life
Schedule
Track 1 prototypes in final integration
Completed prototypes available starting Dec 08 Total of 6-10 units planned
Track 2 production schedule:
Preliminary Design Review Jan 2009 Critical Design Review Apr 2009 First Pre-production Units available 4thQ 2010 (CY) Completion of Qual & Certs 3Q 2010
ViaSat Brings Your Network To Life
MilCIS 2009 Link 16/MIDS Overview
Mr. Tim Trudeau ViaSat
ViaSat Frontline Immediate Response and Support Team Telephone 1-800-MIDS-HLP (1-800-643-7457) Email VFIRST@viasat.com
ViaSat Brings Your Network To Life
