Sagetech Avionics XP-TR Mode A/C/S Transponder User Manual
Sagetech Corporation Mode A/C/S Transponder
User Manual
DOC7010R01 7 July, 2014 Contents Introduction Transponder Certification Equipment Safety XP Transponder Fundamentals Specifications Serial Communication ADS-B, GPS and Extended Squitter Functionality Mutual Suppression Functionality Transponder Installation Transponder Mounting Power Thermal Management Control Interface GPS Interface 10 Antenna 10 GPS Antenna 12 Antenna Cable 12 Static Pressure 13 Appendix A: Contact Sagetech 14 Appendix B: Glossary 15 Appendix C: Electrical Connections 16 Transponder Interface Cable / Connectors 16 Transponder Main Connector Pin-out 16 Main Connector - Important Notes Error! Bookmark not defined. Main Connector - Important Notes 18 Appendix D: Revision History XP Transponders User Guide Rev 1.3 21 Introduction Sagetech Corporation is dedicated to making integration of our XP family of transponders a straightforward and simple exercise. We want your experience with Sagetech to be unparalleled in product quality and customer service. If you have questions, you can email or call us at: support@sagetechcorp.com 1 (509) 493-2185 We also are interested in your feedback (good or bad) on our products, documents, and customer service. This document provides basic information necessary for a user to install and use the Sagetech XP family of transponders. Sagetech XP Family of Transponders by Part Number Part Number Product Name XPC-TR Mode C Transponder XPS-TR Mode S Transponder with ADS-B Out XPG-TR Mode S Transponder with ADS-B Out and Integrated GPS XPS-TRB Mode S Transponder with ADS-B In/Out Unless otherwise specified, the information in this document applies to all Sagetech XP transponders. Transponder Certification The XP family of transponders is not currently TSO certified, although certification work by Sagetech is underway. For information about the TSO certification timeline, contact Sagetech Corporation. XP Transponders User Guide Rev 1.3 Equipment Safety This product, like all microcontroller products, uses semiconductors that can be damaged by electrostatic discharge (ESD). When handling, use standard ESD practices to ensure the transponder is not damaged. Important: Whenever power is supplied to the transponder, a 50 ohm load must be provided to the SMA connection. You can use an antenna or a commercially available 50 ohm load (for example, part number TS180M-10W available from RFMW.com). XP Transponder Fundamentals The Sagetech XPC-TR Mode C Transponder interacts with air traffic control (ATC) by transmitting and receiving standard secondary surveillance radar pulses per ICAO requirements. The transponder replies to requests from ATC with a squawk code and altitude data. Altitude data can be based on the t a spo de ’s integral, calibrated pressure sensor and encoder (termed a blind encoder) or one provided external to the transponder. The Sagetech XPS-TR Mode S Transponder with ADS-B Out contains all the functionality of the Sagetech XPC-TR Mode C Transponder. In addition, it provides Mode S replies (includes data such as ICAO1 address and call sign) and is capable of being selectively interrogated. Also, it adds Automatic Dependent Surveillance-Broadcast (ADS-B) Out capability. If configured with a GPS data source it can broadcast aircraft position and other relevant data to the ATC system and surrounding aircraft. The Sagetech XPG-TR Mode S Transponder with ADS-B Out contains all the functionality of the Sagetech XPS-TR Mode S Transponder except Mutual Suppression. In addition, the transponder is preconfigured to use the installed GPS module with an internal GPS Antenna. A connector is provided to enable use of an optional external antenna as a GPS receiving source. The Sagetech XPS-TRB Mode S Transponder with ADS-B In/Out contains all the functionality of the Sagetech XPS-TR Mode S Transponder with ADS-B Out. In addition, it receives ADS-B traffic information from the ATC system and surrounding aircraft and reports this data to the flight computer, which can then communicate it to the user. Transponders with ADS-B In are useful for sense and avoid applications as ADS-B In provides the user with surrounding traffic information within a nominal range of 120 nautical miles (NM). A 24-bit address used to identify aircraft. XP Transponders User Guide Rev 1.3 Specifications XPC-TR XPS-TR XPG-TR XPS-TRB unrestricted unrestricted Unrestricted unrestricted 250 W nominal Serial Communications / General Operating Altitude Transmit Power 250 W nominal 250 W nominal 250 W nominal 1030 Receive Sensitivity -73 +/- 4 dBm -73 +/- 4 dBm -73 +/- 4dBm -73 +/- 4 dBm 1090 ADS-B IN Sensitivity N/A N/A N/A -84 dBm RF Impedance Ω Proprietary protocol RS-232, 57.6 Kb Ω Proprietary protocol RS-232, 57.6 Kb Accord NexNav, NMEA RS-232, Adj data rate Ω N/A N/A N/A Mutual Suppression Yes Yes No Ω Proprietary protocol RS-232, 57.6 Kb Accord NexNav, NMEA RS-232, Adj data rate Proprietary protocol RS-232, Adj data rate Yes Altitude Encoder 20,000 – 60,000 ft 20,000 – 60,000 ft 20,000 – 60,000 ft 20,000 – 60,000 ft ADS-B Out (Extended Squitter) No Yes Yes Yes Yes Serial Com0 Control N/A Serial Com2 GPS Input Proprietary protocol RS-232, 57.6 Kb N/A Serial Com1 ADS-B In Messages ADS-B In (TIS-B) No No No Export Compliance ECCN 7A994 ECCN 7A994 ECCN 7A994 ECCN 7A994 10-32 V 4 watts (typical) 11 watts (max) < 1 watt 10-32 V 7 watts (typical) 12 watts (max) < 1 watt 10-32 V 10-32 V 8 watts (typical) 14 watts (max) < 1 watt Power Supply Voltage Power Consumption (ON & ALT) Power Consumption (STBY) < 1 watt Certification Plan – TSO and Certification Efforts On-Going EASA RTCA DO-181E, RTCA DO-260B SAE AS8003 TSO-C112e Level 2els, Class 1, TSOC166b Class B0, TSO-C88b ETSO-2C112b, ETSO-C166a, ETSO-C88a RTCA DO-181E, RTCA DO-260B SAE AS8003 TSO-C112e Level 2els, Class 1, TSO-C166b Class A0, TSO-C88b ETSO-2C112b, ETSO-C166a, ETSO-C88a FCC FCC part 87, Part 15 FCC part 87, Part 15 Software DO-178B level C DO-178B level C Complex Hardware DO-254 level C DO-254 level C Environmental Testing DO-160G DO-160G Minimum Operational Performance Standards FAA Physical/ Environmental XP Transponders User Guide Rev 1.3 Dimensions Mass Operating Temperature Storage Temperature Humidity XPC-TR XPS-TR XPG-TR XPS-TRB 89 x 46 x 18 mm (3.5 x 1.8 x 0.7 in) 89 x 46 x 18 mm (3.5 x 1.8 x 0.7 in) 97 x 46 x 25 mm (3.8 x 1.8 x 1.0 in) 89 x 46 x 18 mm (3.5 x 1.8 x 0.7 in) 98 g (3.45 oz) -20 to 70 °C (-4 to 158 °F) -55 to 85 °C (-67 to 185 °F) Max: 95% noncondensing 98 g (3.45 oz) -20 to 70 °C (-4 to 158 °F) -55 to 85 °C (-67 to 185 °F) Max: 95% noncondensing 147 g (5.2 oz) -20 to 55°C (-4 to 131 °F) -20 to 85 °C (-4 to 185°F) Max: 95% noncondensing 100 g (3.53 oz) -20 to 70 °C (-4 to 158 °F) -55 to 85 °C (-67 to 185 °F) Max: 95% noncondensing Serial Communication Sagetech XP transponders are controlled through a straightforward communication system via a serial interface (RS-232). Many flight computers support the proprietary Sagetech XP Transponder protocol allowing plug-and-play integration with the Sagetech XP family of transponders. If you have a proprietary flight computer, data link, or other method of controlling the transponder, please contact Sagetech for the Sagetech XP Serial Communication Document. ESD protection (at 2kV HBM or better) is provided on the main RS-232 interface pins ADS-B, GPS and Extended Squitter Functionality ADS-B is a iti al o po e t of the FAA’s Ne tGe i itiati e to e pa d ai spa e apa it a d ake it more efficient while maintaining or improving safety. By augmenting or – in some cases – replacing expensive ground-based surveillance radars, ADS-B promises to reduce air traffic control costs while concurrently enhancing controller and pilot situational awareness. ADS-B equipment is built to meet one of two sets of US government standards, DO-260B or DO-282B. By the year 2020 all aircraft operating in the airspaces listed below will be required to carry equipment that broadcasts ADS-B surveillance data. The ADS-B Out variants of the XPS transponders, once TSO Authorized, are intended to meet all requirements defined for NextGen transponders. XP transponders with ADS-B Out support a message type known as the extended squitter (ES). The ES is a periodic message transmitted automatically, without the transponder first being interrogated. This message typically provides identification, position, velocity, status, and other aircraft data. GPS data is provided to the transmitter from the avionics system integrator in one of two ways: a) GPS serial data stream on XP serial interface Com2. The data format is either NMEA or a proprietary format from a NexNav Mini GPS (a TSO-C145c compliant solution). Note: The XPG-TR streams GPS data from Com2 using the internal GPS module and antenna. It may be configured to use an alternate source on Com0. XP Transponders User Guide Rev 1.3 b) GPS data is incorporated into the command and control protocol packets on XP serial interface Com0. For more information, see the Sagetech XP Transponder Serial Communication Document. Note: Sagetech recommends using the external Accord Technology NexNav Mini receiver. It is the smallest TSO-C145c Class Beta-1 receiver we have identified. Note: Do not implement both external GPS data to Com2 and flight computer GPS data to Com0 at the same time. The GPS Source byte of the Installation Message controls which interface is used. For more information, see the Sagetech XP Transponder Serial Communication Document. If no GPS source is connected to the transponder or if the GPS data is determined to be unreliable, the ES messages are still transmitted, but without GPS-based position data. Mutual Suppression Functionality The Sagetech transponders include a mutual suppression line designed to coordinate transmission of pote tiall o fli ti g sig als. Whe the XP t a spo de ’s Mutual “upp essio li e is pulled do it stops transmitting until the mutual suppression line re-opens. The transponder starts transmitting again within 15 microseconds of the end of the mutual suppression pull-down condition. Sagetech recommends use of an open collector transistor circuit able to sink 1 mA to drive this interface. Interface must be able to pull this line below 400 mV to ensure transponder is fully suppressed. When not suppressed the transponder weakly pulls up the Mutual Suppress line to the input supply voltage (with range between 10 to 32 V). No pull-up resistor is required on customer hardware. Leave the Mutual Suppression pin unconnected if not used. XPG-TR does not have Mutual Suppression functionality. Electrical connections to the transponder, including the Mutual Suppression signal, are defined in detail in Appendix C of this document. XP Transponders User Guide Rev 1.3 Transponder Installation Installation of Sagetech XP Transponders consists of: Mounting the transponder in your airframe. Routing power cables to the transponder (but not yet powering it up). Co e ti g the t a spo de a le’s f ee e d te i atio s to ou control interface. Connecting to a GPS data source if it is an ADS-B Out variant. Installing an antenna. Routing and connecting the antenna cable. Connecting the altitude sensor/encoder to system Static Pressure. Transponder Mounting The mounting holes in the transponder accept 4-40 (or M3 x .05) machine screws. Most transponders are 0.7 inches thick (18mm) at the mounting points; the XPG-TR with its GPS assembly is 1.0 inch thick (25mm). The required minimum machine screw length depends on specific installation variables, including the thickness of your mounting hardware, any washers, and the nut. When determining a proper machine screw length, ensure excess machine screw length does not interfere with other components. The machine screws listed in Table 1 represent an approximate starting point in a search for the correct screw for your custom installation. Table 1 – Common Machine Screws Quantity Required Description Vendor Vendor PN 1 1/4" Pan Head 4-40 Machine Screw McMaster-Carr 90279A117 Washers McMaster-Carr 98029A024 Lock Nuts McMaster-Carr 90631A005 Sagetech recommends applying Loctite 242 Threadlocker to the machine screw threads, or using lock washers or nuts. Power The transponder can be powered with 10-32 volts DC (at the transponder). Transponder power consumption is documented Table 2. If you are supplying voltage to the transponder at the lower end of that range, avoid voltage loss by using short power supply wires and/or larger diameter power supply wires. XP Transponders User Guide Rev 1.3 Zener diodes are used on the DC Power pins to protect the transponder against overvoltage and reverse polarity. Electrical connections to the transponder, including DC power, are defined in detail in Appendix C of this document. Sagetech recommends use of an appropriate amperage inline fuse for the supplied current. Table 2 – Maximum Current Consumption Variant Supply Voltage Max Average Current Note XPC-TR Mode C Transponder 10 V 1.1 A Measured 32 V 0.4 A Measured 10 V 1.2 A Measured 32 V 0.4 A Measured 10 V 1.4 A Estimated 32 V 0.5 A Estimated XPS-TR Mode S Transponder with ADS-B Out XPS-TRB Mode S Transponder with ADS-B In/ Out Important: Transponder inrush current when the transponder is switched from OFF/STBY to ALT/ON is as follows (all variants): 6A at 32v and 4A at 10v. Contact Sagetech if you need actual graphical data depicting inrush current for your particular application. Thermal Management The XP transponder is designed so its case conducts thermal load to the aircraft frame. The transponder can be firmly mounted directly to the aircraft, or to other components within the aircraft. The transponder should be mounted away from sources of excess heat to better guarantee an operating environment within its designed temperature range. Control Interface Sagetech XP transponders are controlled with a straightforward communication system via a serial interface (RS-232 port). Sagetech provides a Transponder Interface Cable (part number XP-CBL-001) which includes a transponder-side connector and is un-terminated at the flight control side. Electrical connections to the transponder, including serial interfaces, are defined in detail in Appendix C of this document. XP Transponders User Guide Rev 1.3 Sagetech XP transponders are plug-and-play compatible with many standard flight computers to simplify operation and use. Currently MicroPilot, UAV Navigation, and Cloud Cap are working on updates. Control of the transponder will be supported by each flight computer vendor’s documentation. If you have a proprietary flight computer, data link, or other method of controlling the transponder, please contact Sagetech for the Sagetech XP Serial Communication Document. In installations where the transponder does not interface with a flight computer, a data link or other method can control the transponder using the serial port. Note: When you connect the transponder interface cable to the transponder, tighten the screws sufficiently so the connector does not loosen due to aircraft vibration. GPS Interface For XPS transponders with ADS-B Out, GPS data must be provided to the transponder from the aircraft system integrator in one of two ways: a) GPS serial data streams on XP serial interface Com2. The data format is either NMEA GPRMC format or the NexNav Mini GPS (http://www.accord-technology.com/nexnav_mini.html ). Com2 is an RS-232 port defined in detail in Appendix C of this document. Using the external interface also allows a faster GPS data rate and therefore slightly increased accuracy. The XPG-TR variant of the Mode S transponder is preconfigured to automatically stream GPS data from its internal GPS module, with signal coming from either its internal or an external antenna. b) GPS data incorporated into the command and control protocol packets on XP serial interface Com0. For more information on the serial command protocol, see the Sagetech XP Transponder Serial Communication Document. Note: Sagetech recommends using the external Accord Technology NexNav Mini receiver. It is the smallest TSO-C145c compliant receiver we have identified. Note: Do not implement both external GPS data to Com2 and flight computer GPS data to Com0 at the same time. The GPS Source byte of the Installation Message controls which interface is used. For more information, see the Sagetech XP Transponder Serial Communication Document. Antenna The transponder should have its own antenna. An exception to this rule is use of a high quality diplexer that enables antenna sharing between a transponder and certain ADS-B equipment. Further guidance on diplexer use can be found in RTCA documents DO-282B and DO-260B, the minimum operational performance standards for UAT and 1090 MHz ADS-B, respectively. 10 XP Transponders User Guide Rev 1.3 Use an antenna designed to be used with aviation transponders with the characteristics documented in Table 3. Table 3 – Transponder Antenna Requirements Antenna Requirements Frequency 1030 to 1090 MHz Polarization Vertical Nominal Impedance Ω VSWR <1.5 between 1030 to 1090 MHz Radiation Pattern The gain must not be less than the gain of a matched quarterwave stub minus 3 dB over 90 percent of a coverage volume from 0 to 360 degrees in azimuth and from 5 to 30 degrees above the ground plane when installed at the center of 1.2 m (4 foot) diameter (or larger) flat circular ground plane. Mounting Location Underside of aircraft fuselage, nominally at the wing root Note: If your installation does not meet all of the above requirements, transponder performance (range) may be hindered and damage to the transponder could result. Important: Whenever power is supplied to the transponder, a 50 ohm load should be provided to the SMA connection. Ensure that the antenna selected provides a 50 ohm termination for the transponder. Table 4 – Examples of Transponder Antennas Thumbnail 11 Type Vendor Vendor PN Weight Connector Monopole Antenna Aircraft Spruce and Specialty 11-17995 30 g BNC Female Blade Antenna Aircraft Spruce and Specialty AV-74 100 g BNC Female XP Transponders User Guide Rev 1.3 The antenna should be ou ted o the outside of the ai aft a o di g to the a ufa tu e ’s installation instructions. The ideal location is a vertical orientation, mounted on the underside of the aircraft, near the wing root. Try to minimize the distance between the transponder and the antenna. Take care to locate the antenna away from any objects that may disrupt the ground plane for the antenna, such as doors and landing gea . Do ot pla e the a te a lose to e gi e e haust. T to keep the a te a lo ated at least away from other antennas on the aircraft. The antenna should be located as close to the centerline of the fuselage as space allows, while trying to keep the antenna on a flat surface. A ground plane is required for most transponder antennas (including examples listed above). Failure to provide a good ground plane can result in degradation of antenna performance. Also, take care not to over-torque the antenna in an attempt to reduce a gap between the antenna and the mounting surface; torque the antenna to the manufacture ’s instructions. GPS Antenna The XPG-TR uses an active GPS, and if an external antenna is required it should meet with the following requirements. Table 5: GPS Antenna Specifications Antenna Requirements Frequency 1575.42 MHz Polarization RHCP Ω Nominal Impedance VSWR ≤2 Voltage 2.8 V at 50mA max Gain 25-33 dB Mounting Location Topside of aircraft fuselage, with clear view of sky. Sagetech offers an external GPS antenna GPS-ANT-001 (GPS active antenna module with cable) that meets these requirements, as well as XP-AT-002 (GPS active antenna module, bulkhead) and XP-CBL005, a cable to connect the antenna to the XPG-TR unit. Antenna Cable A suitable antenna cable consists of a male SMA connector, a length of co-axial cable, and a suitable connector for your antenna. For example, if you are using a simple monopole antenna (as shown in Table 4) with a BNC female connector, your antenna cable will need a BNC male connector. 12 XP Transponders User Guide Rev 1.3 The antenna cable should have no more than 2dB of signal loss from the transponder to the antenna. This includes losses in the connectors and cable. Generic and custom built cables can be obtained from suppliers such as Pasternak, Richardson, and Aircraft Spruce. Avoid sharp bends in the antenna cable that could lead to additional signal loss. Static Pressure The t a sdu e plu s i to the ai aft’s stati p essu e sou e. This can be accomplished by plumbing the altitude encoder connection to a static pressure line that shares the same source as the main aircraft alti ete . The XP t a spo de se so a epts tu i g ith a i side dia ete of o / . Typically, the tubing will need to be secured to the pressure transducer with a cable tie, clip or other suitable method. However, in installations where the tubing is held in place by compression and is unlikely to come lose (for example, a short, straight run of tubing between the transponder and a fitting held in a fixed location), a mechanical fastener such as a cable tie may not be necessary. If your installation requires cables ties, consider using something similar to Mouser part number 644PLT.6SM-M0. In general, try to minimize the tubing length between the transducer and the static pressure system. Your static pressure system may use 1.8mm, . , / , / , / " or other sized fittings. Many aircraft installations use standard silicon tubing; e.g., Du-Bro part number 197m size medium, available from radio control supply houses. Other systems use tubing from Cole Palmer (Tygon R-3603), Beswick Engineering (part number MUT-1012), or McMaster-Carr (part numbers 5155T14or 5119K41). If the tubing is stiff and needs to be stretched to fit on the pressure transducer, utilize needle nose pliers as shown in Figure 1. Figure 1 – Utilizing Needle Nose Pliers to Stretch Tubing If you have to step up or step down in tubing size within your static pressure system, you can often slip one hose inside another and secure this overlap with a clip, cable tie, or other suitable fastener. Some flight computer vendors make custom step fittings. A typical installation will have a T or Y fitting in the static pressure line with one end running to the transponder. Suitable Y-barbed tube fittings are available from suppliers such as McMaster-Carr. 13 XP Transponders User Guide Rev 1.3 Appendix A: Contact Sagetech General Contact Information Phone: 1 (509) 493-2185 General E-Mail: Info@SagetechCorp.com Transponder Inquiries: Transponder@SagetechCorp.com Web form: http://sagetechcorp.com/home/contact-us Support Contact Information 14 Phone: 1 (509) 493-2185x500 Support E-Mail: Support@SagetechCorp.com XP Transponders User Guide Rev 1.3 Appendix B: Glossary ACK: Each time the transponder receives a message, it responds with an acknowledgement message indicating that the information was received and set correctly. The acknowledgement message also contains transponder status information. This message is called the Acknowledge Message or ACK for short. ADS-B: Automatic Dependent Surveillance-Broadcast (ADS-B) is an emerging system for cooperative air traffic control. The ADS-B unit broadcasts GPS and other aircraft-related data to the ATC system and nearby aircraft. Some units only broadcast ADS-B data while others broadcast and receive ADS-B data. When using a data link frequency of 1090 MHz, often ADS-B functionality is implemented as part of a transponder. ATC: The air traffic control system uses ground-based hardware and air traffic controllers to direct aircraft traffic. GPRMC: Recommended NMEA 0183 sentence that contains all of the basic GPS requirements for a transponder. See NMEA 0183 below. GPS: A space-based global positioning system that provides reliable location and time information. Note that other systems that provide equivalent data may be used (GLONASS, Galileo, etc). It is not the intent of this document to limit the user to only GPS. ICAO address: A 24-bit address used to identify aircraft. ICAO stands for International Civil Aviation Organization. Ident: Ide t is sho t fo ide tif . Whe ai t affi o t ol e uests that the ai aft ide tif , the pilot uses the Ident function to send a message to ATC that enhances or exaggerates the blip on the air traffic o t olle ’s ada s ee . The Ident function should only be activated at the request of ATC. NMEA 0183 message (using GPRMC): The National Marine Electronics Association (NMEA) defines a messaging protocol called 0183. GPRMC is a specific message type within that protocol. Non-volatile memory: Data stored in non-volatile memory is not lost when power to the device is removed or interrupted. Squawk code: The ATC system for a given geographic area assigns a unique four digit number to each transponder equipped aircraft in that area. This number is called a squawk code, and it is transmitted by the transponder only when interrogated by ATC to aid in aircraft identification. TSO: A Technical Standard Order is a minimum performance and design assurance standard set by the FAA for specified materials, parts, and appliances used on civil aircraft. When authorized to manufacture a material, part, or appliance to a TSO standard, this is referred to as TSO Authorization (TSOA). Receiving a TSOA is both design and production approval. A TSO by itself is not an approval to install and use the article in an aircraft, though it greatly facilitates obtaining an approval. 15 XP Transponders User Guide Rev 1.3 Appendix C: Electrical Connections The Sagetech XP transponder has one 26 pin (RS-232) main electrical connector for power and serial communication. There is one female, center conductor SMA connector, used to connect the transponder to an antenna via a coax cable. This connection is used to send and receive RF signals via the antenna. Transponder Interface Cable / Connectors Sagetech provides an accessory interface pigtail cable (part number XP-CBL-001) that can be used to implement the interface from the transponder to the control source. The Interface Cable uses a 26 pin connector mated to twisted pair shielded 28 gauge wire with 16 conductors. If you wish to build your own transponder interface cable, the cable type (solder cup) connector is Honda part number HDR-E26MSG1+ (and the cable backshell is Honda p/n HDR-E26LPH). If the ideal interface is for you to design a circuit board interface, the PCB SMT mount connector is Honda p/n HDREA26LMYPG1+. Sagetech provides an accessory GPS antenna cable for the XPG-TR external GPS connector (part number XP-CBL-005) that can be used for the installation of an external GPS antenna. If you wish to build your own GPS cable for the XPG-TR, the external GPS antenna connector is a Hirose MS-151 RF connecter. Transponder Main Connector Pin-out The following diagrams show the transponder main connector pin designations. Figure 2 shows the face of the transponder assembly. Figure 2 shows the four row representation of the Honda harness connector solder-cup pins. Table 6 provides the pin assignments for the main connector while Table 7 provides the pin assignments for the XPG-TR variant. 14 26 13 Figure 2 – Transponder Main Connector Pin locations (looking at face of transponder connector) 16 XP Transponders User Guide Rev 1.3 Main Connector - Important Notes All four power pins must be connected. Zener diodes are used on the DC Power pins to protect the transponder against overvoltage and reverse polarity. At least four of the ground pins must be connected. If you must leave one of the five ground pins unconnected, you may leave #15 or #17 unconnected. Pins 13, 18, and 19 are used for production programming and must NOT be connected. Other Not-Connected pins 20 through 26 should not be connected (left floating). Pin 11, Mutual Suppress, is designed to connect to an ai aft’s idi e tio al supp essio us. See the Mutual Suppress paragraph in this document for details. Leave unconnected if not used. ESD protection (at 2kV HBM or better) is provided on the main RS-232 interface pins 17 XP Transponders User Guide Rev 1.3 Table Main Connector - Important Notes All four power pins must be connected. Zener diodes are used on the DC Power pins to protect the transponder against overvoltage and reverse polarity. At least four of the ground pins must be connected. If you must leave one of the five ground pins unconnected, you may leave #15 or #17 unconnected. Pins 13, 18, and 19 are used for production programming and must NOT be connected. Other Not-Connected pins 20 through 26 should not be connected (left floating). Pin 11, Mutual Suppress, is designed to connect to an ai aft’s idi e tio al supp essio us. See the Mutual Suppress paragraph in this document for details. Leave unconnected if not used. ESD protection (at 2kV HBM or better) is provided on the main RS-232 interface pins 18 XP Transponders User Guide Rev 1.3 Table 6 – Transponder Main Connector Pin Assignments Pin Number Signal Direction Signal Char. Wire Color in Sagetech Harness p/n XP-CBL-001 (Solid/Band) Required DC Power Power 10-32 VDC White/Tan DC Power Power 10-32 VDC White/Brown GND Power Gnd Tan/White GND Power Gnd Brown/White DC Power Power 10-32 VDC White/Pink DC Power Power 10-32 VDC White/Orange GND Power Gnd Pink/White Com1 RX ADS-B In Data Input RS232 Rcv Orange/White Optional Com1 TX ADS-B In Data Output RS232 Tx White/Yellow Optional 10 Com0 TX Command & Control Output RS232 Tx White/Green 11 Mutual Suppression I/O I/O Yellow/White Optional 12 Com0 RX Command & Control Input RS232 Rcv Green/White 13 NO CONNECT 14 Com2 RX GPS Interface Input RS232 Rcv White/Blue Optional 15 GND Power Gnd White/Violet 16 Com2 TX GPS Interface Output RS232 Tx Blue/White Optional 17 GND Power Gnd Violet/White 18 NO CONNECT Y – DO NOT CONNECT 19 NO CONNECT Y – DO NOT CONNECT 20 Not Connected 21 Not Connected 21 Not Connected 23 Not Connected 24 Not Connected 25 Not Connected 26 Not Connected 19 XP Transponders User Guide Rev 1.3 Y – DO NOT CONNECT Table 7 – XPG-TR Main Connector Pin Assignments Pin Number Signal Direction Signal Char. Wire Color in Sagetech Harness p/n XP-CBL-001 (Solid/Band) Required DC Power Power 10-32 VDC White/Tan DC Power Power 10-32 VDC White/Brown GND Power Gnd Tan/White GND Power Gnd Brown/White DC Power Power 10-32 VDC White/Pink DC Power Power 10-32 VDC White/Orange GND Power Gnd Pink/White Com1 RX ADS-B In Data Input RS232 Rcv Orange/White Optional Com1 TX ADS-B In Data Output RS232 Tx White/Yellow Optional 10 Com0 TX Command & Control Output RS232 Tx White/Green 11 Not Connected 12 Com0 RX Command & Control Input RS232 Rcv 13 NO CONNECT Y – DO NOT CONNECT 14 NO CONNECT Y – DO NOT CONNECT 15 GND Power Gnd 16 NO CONNECT 17 GND Power Gnd 18 NO CONNECT Y – DO NOT CONNECT 19 NO CONNECT Y – DO NOT CONNECT 20 Not Connected 21 Not Connected 21 Not Connected 23 Not Connected 24 Not Connected 25 Not Connected 26 Not Connected 20 XP Transponders User Guide Rev 1.3 Green/White White/Violet Y – DO NOT CONNECT Violet/White Appendix D: Revision History This Table lists the revision history of the XP Family of Transponders User Guide. Table 8 – Sagetech XP Family of Transponders by Part Number 21 Date Version Revisions May 6, 2011 1.0 Initial Release June 30, 2011 1.1 Added MicroPilot Content April 6, 2012 1.2 Style change, removed MicroPilot section, document title change, added Mode S content, updated Packaging Drawing July 7, 2014 1.3 Added XPG-TR to document. XP Transponders User Guide Rev 1.3
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