security and Defense

Mk XIIA/Mode S
Transponder
Security and defense in five continents

indracompany.com
T50_UAV_MD5
Mk XIIA/Mode S
Transponder

An advanced low cost solution for

intelligence, surveillance, target acquisition
and reconnaissance (ISTAR) missions in
short range tactical operations

T50_UAV_MD5

The T50_UAV_MD5 is the most advanced T50_UAV_MD5 is a system easy to use Indra has integrated all identification
Transponder in the market, meeting the and maintain. It has been designed to modes including Mode 5 capability in its
requirements defined in STANAG 4193 minimize the maintaining actions. Transponder T50_UAV_MD5 in order to
and MIL-STD. avoid fratricide risk and the situational
The high versatile capability of the awareness. The equipment offers the best
The equipment is based on “state of the equipment allows it to be installed in any solution due to its technical characteristics
art” technology and complies with the high platform due to its variable configurations. and versatility.
reliability required for military use. The T50_UAV_MD5 operates in Modes SIF
(1, 2, 3/A, C), Mode 4, Mode S and Mode 5. The T50_UAV_MD5 is a transponder
The transponder has been tested under designed to carry out the self-
the most stringent environmental This equipment is another outstanding identification in presence of any
conditions. Thereby it is equipment capable result of Indra’s experience in interrogating-platform. It’s reduced size
of operating in any military platform. Identification Products. and weight (<3 Kg; ATR, 70x184x225 mm)
allows it to be installed at any platform.

T50_UAV_MD5
Mode 5 Size, weight and versatility

The main and more advanced Size, weight and versatility have been • Size: It’s reduced size (70x184x225 mm)
characteristic of the Transponder three important characteristics in allows the installation of the equipment
T50_UAV_MD5 is its ability of replying the design process of transponder in small platforms (with reduced bay area).
to Mode 5 interrogations, in addition to T50_UAV_MD5. • Weight: (< 3 Kg) allows the installation
Modes SIF, 4 and Mode S. This mode of of the equipment in light (or ultra-light)
operation provides significant operational The T50_UAV_MD5 outstanding platforms (such as Unmanned Air Vehicles)
and performance improvements: better operational and environmental • Versatility: It’s multiple configurations
use of available bandwidth, increased characteristics as well as its mechanicals (stand-alone/ remote-controlled) allows
probability of identification and improved specifications and modular design makes the installation and integration of the
performance in presence of interferences. easy the complete adaptation of the equipment in multiple platforms, with
T50_UAV_MD5 to any platform, military multiple communications configuration
Mode 5 provides improved security and and civil either.: (multiple buses are supported).
increased system capacity and permits • Multiple altimeter configurations are
maximum commonality with IFF Mk XII allowed (Serial altimeter, Gillham, etc.)
and Mode S installations.

Configurations supported Controls and status

The T50_UAV_MD5 is designed to work • Remote-controlled (Optional upgrade): In Due to T50_UAV_MD5 high versatility.
in multiple platforms (due to it’s high this case platform provides configuration Operator is able to command and check
versatility capability). Three configurations data to T50_UAV_MD5 by means of the following operation parameters:
have been defined: Mission Computer (commanded from • Control:
• Stand-Alone: In this case platform only ground control). T50_UAV_MD5 is - Independent selection of Mode 1, 2,
provides Power to the T50_UAV_MD5. commanded from a remote control by 3/A, C, 4, S, 5.
Configuration of the T50_UAV is serial full-duplex line RS-485 as default, - Squitter Mode 5 and S
performed on ground by a Personal but can be also controlled by Bus 1553, - Reply codes for Modes 1,2,3/A,4
Computer (CDS). Configured parameters are: ARINC429, ETH, RS232. Mission - PIN , NO, MC
- Reply Modes (1, 2, 3/A , C, S, 4 and 5) Computer allows operator to configure - SPI
- Reply Codes reply modes and reply codes and all the - EMM
- BITE controls and indications necessary for - ZEROIZE and HOLD for M4 crypto keys
- Squitter configuration the T50_UAV_MD5 operation. - STANBY, NORMAL, EMCON
- Mode 4, Mode 5, Mode S and SIF
controls according to STANAG 4193
• Status:
- All Controls commanded
- BITE information
- Keys Status

Technology

The modular solid-state design, the In order to minimize maintenance tasks the • The Transponder Processor Assembly
extensive use of modern microprocessors T50_UAV_MD5 consists of independent which performs all process in the system
and Digital Signal Processors (DSP’s), the shop-replaceable units (SRUs). This allows (interrogations decode, communications,
powerful Application Specific Integrated to an inexperienced operator repair reply generation, BITE…)
Circuit (ASIC) and Field-Programmable Gate the equipment if necessary. SRUs that
Array (FPGA) technology and integrated composes the T50_UAV_MD5 system are: The SRU’s are designed to allow the
Built-In-Test Equipment (BITE) provides to • The Radiofrequency Assembly which addition of future developments to
T50_UAV_MD5 maximum reliability. is based on high power, low noise and provide the equipment with new modes of
extensive dynamic range amplifiers operation and/or to adapt it to different
The FPGA technology allows all the • The Power Supply Assembly which platforms or costumer specifications.
interfaces to be programmed by a special meets MIL-STD-810 and MIL-704
configurative parameters. This provides an requirements and comprises high
easy adaptation to any platform. reliability DC/DC modules

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Qualification Built-in-test equipment (BITE) Maintenance and reliability

The T50_UAV_MD5 has been subjected BITE process detects equipment failures The IFF Transponder T50_UAV_SIF
to the most restringing environmental and test external interfaces (antenna exhibits high reliability. It is showed in its
conditions: Temperature, Humidity, cable and communication lines). high MTBF and low MTTR which implies a
Altitude, Shock, Vibration, Acceleration, BITE has been designed to minimize low maintenance and embodies a Built-In
Fungus, Salt and Fog, Explosive the rate of “False Failures” and spurious Test system (PBIT, CBIT, IBIT) which makes
Atmosphere, Lightning, Acoustic failures. For that purpose three different possible quick and easy maintenance
noise and EMC, according to standards BIT are performed:
MIL_STD_810, MIL_STD_461 and • PBIT: exhaustive test during “Power ON”
MIL_STD_462. • IBIT: exhaustive test under user request
• CBIT: continuous and periodical
BIT during normal operation of
T50_UAV_MD5

Experience in IFF systems

Indra has been developed IFF systems

(interrogators, transponders and combined
interrogator-transponders) for 30 years.
This fact has made Indra one of the most
important IFF developers of the world.
Indra has developed IFF systems for the
most important and restringing platforms
such as:
• F-18
• P3 Orion
• F-100
• F-105
• Airbus A400M
• Eurocopter Tiger
• Eurocopter NH-90
• S-80 submarine
• T50_UAV PASI
• T50_UAV ATLANTE

Integration

Its high outstanding operative

characteristics and environmental
performances make the T50_UAV_MD5
equipment suitable for its integration
in multiple platforms, especially for
airplanes (such as UNMANNED AIR
VEHICLES), helicopters and surface
and on ground platforms.

security and Defense

 Technical Characteristics
General Characteristics
Size • (H) 70 ± 1mm x (W) 184± 1mm x (D) 225 ± 1mm
(without connectors)
• (H) 70 ± 1mm x (W) 184± 1mm x (D) ≤ 243 ± 1mm
(with connectors)
Weight ≤3 Kg
Voltage According to MIL-STD-704
Type +28 V DC (nominal)
Consumption 50 W (max.)
BIT Extensive BITE for easy maintenance (PBITE,
CBITE, IBITE)
Receiver Characteristics
Diversity Dual channel
Sensitivity According to STANAG 4193
Dynamic Range MDL to –22 dBm
Carrier Frequency 1030 ± 0,5 MHz
Transmitter Characteristics
Carrier Frequency 1090 ± 0,01 MHz
Peak Power ≥51,2 dBm
Duty Cycle (long-term) According to STANAG 4193
Processing Characteristics
Modes of Operation 1, 2, 3/A, C, 4, S Level 2 Enhanced, 5 Level 2.
Easy growth to Mode S Level 3, 4, 5 and Mode 5
Level, 3, 4
ISLS Operation Yes
Mode S ADS-B Yes
Environmental Characteristics
Operating Temperature -40ºC to +71ºC
Storage Temperature -50ºC to +85ºC
Altitude 40.000 ft (Operating)
Fully qualified to operate in air platforms (UAV, aircraft, helicopters, etc).
Compliant with MIL-STD-810E, MIL-STD-461/462
Reliability / Maintainability Characteristics
MTBF / MTTR Better than 3.500 hours / 15 minutes

Main features

• Mk XIIA/Mode S Transponder (Mode 1, 2, • Two antenna interfaces for diversity

3/A, C, 4, S, 5) operation
• Appliqué Mode 4 and Mode 5 crypto • DSP-FPGA processing
(COMSEC). • Very Low Weight, Small Size
• Dual, RS485, RS232, ARINC429, ETH • EMI/EMC and Environmental qualified
interfaces. (By customer order for military use according to
MIL-STD-1553B). MIL_STD_461/462 and MIL_STD_810
• ARINC429 interfaces for TCAS, Altitude

security and Defense

Ctra. de Loeches, 9 Indra reserves the right to
28850 Torrejón de Ardoz modify these specifications
Madrid (Spain) without prior notice.
T + 34 91 627 11 68
F + 34 91 627 10 03
t50@indra.es
indracompany.com