Related Manuals for SANDIA aerospace STX 165
Summary of Contents for SANDIA aerospace STX 165
- Page 1 STX 165 / STX 165R Installation Manual 3700 Osuna Rd NE, Suite 711 Albuquerque, NM 87109 www.sandia.aero 306100-00...
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Page 2: Record Of Revisions
This document and the information contained herein is the proprietary data of SANDIA aerospace Corporation. No part of this document may be transmitted, reproduced, or copied in any form or by any means without the prior written consent of SANDIA aerospace. Due to SANDIA aerospace’s continued product and quality improvement programs, information contained in this document is subject to change without prior notice Copyright 2010 SANDIA aerospace Corporation, All right rights reserved. -
Page 3: Table Of Contents
STX 165 Panel Mount ....................4 1.3.1.2 STX165R Remote Mount Unit ..................4 1.3.1.3 STP78 OAT Probe ......................4 1.3.2 Electrical Characteristics - STX 165 and STX 165R .............4 1.3.3 Operational Chacteristics ....................5 1.3.3.1 STX 165 Panel Mount ....................5 1.3.3.2 STX 165R Remote Mount .....................5 1.3.3.3... -
Page 4: List Of Illustrations
Outside Air Temp Probe ....................14 3.6.4 Antenna Connector ......................14 Connector Pin Out ......................16 3.7.1 STX 165 Panel Mount ....................16 3.7.2 STX 165R Remote Mount ...................17 Calibration Procedures -STX 165 Panel Mount ............18 3.9 Installation Configurations - STX 165 Panel Mount ...........18 3.9.1 OAT Sensor ........................18 3.9.2 OAT Correction ......................19 3.9.3 RS 232 BAUD Rate Selection ..................19... -
Page 5: Section 1 General Description
RS 232 data bus for interface to other avionics systems that require altitude data. A SANDIA aerospace STP 78 OAT probe, P/N 305561-91 can be installed as an option. When the STP 78 is installed, the STX 165 will display OAT (Out- side Air Temperature), Density Altitude and Icing Alert. -
Page 6: Operational Chacteristics
TSO C88a, C106 Operating Temp: -55 C - +70 Altitude: 35,000’ 1.3.4 Certification TSO: C74d (transponder) C88b (encoder) STX 165 panel mount only Software: DO-178B Level C Environmental: DO-160F STX 165 [(A4C4)X]CAB(SM)XXXXXXZBAB[BC][TT]M[XXXXX]XXXX STX165R [(A4C4)X]CAB(SM)XXXXXXZBAB[BC][TT]M[XXXXX]XXXX FCC ID YJL-DAF-JDX “The conditions and test required for TSO approval of this article are minimum performance stan- dards. It is the responsibility of those desiring to install the article either on or within a specific type... -
Page 7: Environmental Qualifaction Form - Stx 165
C74d (Transponder) C88b (Encoder) MANUFACTURER’S SPECIFICATION AND/OR OTHER APPLICABLE SPECIFICATION: STX 165 INSTALLATION MANUAL, P/N 306100-00 QUALIFICATION TEST PLAN, STX 165 AIRBORNE MODE A/C TRANSPONDER P/N 901016-QTP MANUFACTURER: SANDIA AEROSPACE ADDRESS: 3700 OSUNA RD NE, SUITE 711, ALBUQUERQUE, NM 87109 REVISION &... -
Page 8: Environmental Qualifaction Form - Stx 165 R
TSO NUMBER: C74d (Transponder) MANUFACTURER’S SPECIFICATION AND/OR OTHER APPLICABLE SPECIFICATION: STX 165 INSTALLATION MANUAL, P/N 306100-00 QUALIFICATION TEST PLAN, STX 165 AIRBORNE MODE A/C TRANSPONDER P/N 901016-QTP MANUFACTURER: SANDIA AEROSPACE ADDRESS: 3700 OSUNA RD NE, SUITE 711, ALBUQUERQUE, NM 87109 REVISION &... -
Page 9: Section 2 Installation Considerations
A Sandia STP 78 OAT probe (Part Number 305561-91) can also be installed as an option with the STX 165. When the STP 78 is installed the STX 165 will display Outside Air Temperature, Density Altitude, and an Icing Alert. The icing Alert will come on at a preset temperature that is selected by the user in the user set up mode. -
Page 10: Section 2 Installation Procedures
Section 3 Installation Procedures General The STX 165 and STX 165R are supplied with two Sub-D mating connectors and a connector clamps. The Sub-D connectors use screw lock assemblies to secure the connectors to the unit. In some installations both connectors will not be needed. The spare connector can be discarded. Also supplied is a SMA connector for use in connecting the antenna coax. It is important that proper installation techniques be observed in attaching wires and building the antenna cable. -
Page 11: Electrical
Electrical The STX 165 and STX 165R operate on 11-32Vdc. Power should be protected by a 1 amp fuse or circuit breaker. J3, a 9 pin Sub-D connector, has system power, external Ident and RS 232 altitude functions. J2 is a 15 pin Sub-D connector that has the Gilham Gray code and OAT functions. On the STX 165 panel mount unit, the gray code connections are outputs on J2 and on the STX 165R remote unit the gray code connections are inputs. -
Page 12: Stx 165R
Figure 3-2 STX 165 Top View Dimensions 3.4.2 STX 165R The STX 165R remote transponder can be either hard mounted using the mounting flanges or mount- ed in the optional mounting tray. 3.4.2.1 Mounting Tray When using the mounting tray, it needs to be secured with two number 8 pan head mounting screws. Ensure that the top of the screw head is below the mounting tray surface. The STX 165R can be installed in either direction in the mounting tray. -
Page 13: 3.4.2.2 Hard Mounting Without Tray
Unit Mounting Dimensions Without Tray Static Port Connection The STX 165 has a built-in altitude encoder that requires connection to the aircraft static port. The static port connection is on the back of the STX 165. To ensure a leak proof fit, it is recommended to use tubing with an Inside Diameter of .125” and secure it with a hose clap or ty-wrap. Upon completion of the STX 165 installation a leak test of the static line is to be performed per FAR Part 43 Appendix E. -
Page 14: Static Port Connection
The minimum installation for an operable STX 165 is Aircraft Power, Aircraft Ground, Antenna and Static Line. Aircraft power and ground are both found on J3, the 9 pin connector. The STX 165 outputs encoder altitude data in either RS 232 or Gilham Gray Code. The data format of the RS-232 altitude output corresponds with the baud rate selection. -
Page 15: Outside Air Temp Probe
The antenna requires the use of a ground plane that should have a radius of approximately 4”. The STX 165 uses a SMA connector (supplied). Instruction for assembling the SMA connector are shown in Figure 3-9. A BNC to SMA adapter can also be use without any measurable degradation of... -
Page 16: Figure 3-9 Antenna Sma Assembly
Arrange braid uniformly around crimp stem. Slide crimp sleeve forward and crimp using recommended crimp tool. Slide heat shrink froward and shrink ( as applicable.) Note: tools can be purchased from Emerson at http://emersonconnectivity.com Static Input Port Antenna Connector Figure 3-10 STX 165 Rear View... -
Page 17: Connector Pin Out
** Older transponders”Strobed” encoders whenever they wanted an altitude update. This is not required in newer transponder systems. When the STX 165 altitude output is being used by another sytem that does not require a strobe, a ground on the STX 165 Strobe line is usually required. -
Page 18: Stx 165R Remote Mount
3.7.2 STX 165R Remote Mounted Unit Description Notes Pin # Aircraft Power 11-33Vdc RS 232A (TCMD) Serial Ground RS232B (Altitude In) 9600 Baud Aircraft Ground No C RS232A (TSTAT) RS232B (Altitude Out) 9600/1200 Baud Selectable. 9600 Baud Factory Default Suppression <.5V= Low, >1.8V=High) 9 Pin Sub-D Description... -
Page 19: Calibration Procedures -Stx 165 Panel Mount
Part 43 Section E. Verify compliance with AC-43.13 as appli- cable. Connect the pitot-static test set to the aircraft static system. The STX 165 must be connected to the aircraft static line. Apply power to the STX 165 and allow the internal encoder to stabilize. -
Page 20: Oat Correction
While in the SBY (Stand-by) Mode, Press and hold the IDT pushbutton while rotating the Select Knob counterclockwise for three seconds (Note that the select knob will go a hard stop. Press the Enter Pushbutton. This will place the STX 165 in the User Set Up Mode with the AL- TITUDE UNIT page displayed 3.10.1 Altitude Unit... -
Page 21: Temperature Unit
3.10.6 MIN BRIGHTNESS The STX 165 uses a photo cell to sense the ambient light conditions and automatically adjust the brightness of the display. This page allow the pilot to set the minimum brightness of the display to match other panel displays or his preference. Note that the maximum brightness is preset at the factory and not adjustable. -
Page 22: Default Vfr Code
3.11 Continued Airworthiness 3.11.1 STX 165 Panel Mounted unit The STX 165’s built-in encoder requires calibration every 24 months per FAR 91.411. All other maintenance of the STX 165 is on condition only. 3.11.2 STX 165R Remote Continued Airworthiness of the STX 165R Remote transponder is on condition only.
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