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Performance Specification ILS RMM Modernization Program
PERFORMANCE SPECIFICATION
For the
Document Number: 200948528 (Cage 98748) Version: Draft-4 Version Date: 1 Oct 2010
Prepared By:
OC-ALC-GKAAB
3580 D Ave, Bldg 201W Tinker AFB, OK 73145-9155
Approved By:
David L. Hansen Chief Engineer
RECORD OF CHANGES
REVISIONS
| REV |
| description |
| date |
| approved |
| Draft-1 |
| Original Draft Release |
| 13 November 2009 |
| WPP |
| Draft-2 |
| IPT comment incorporation |
| 04 December 2009 |
| WPP |
| Draft-3 |
| Incorporate AFMC applicable specification components |
| Aug 2010 |
Performance Specification
Version: Draft-4, October 2010 Page ii of ii
Version: Draft-4, October 2010 Page 4 of 18
SECTION 1
Overview
1.1 Purpose. This document provides performance specifications for modifying the AN/GRN-29 Instrument Landing System (ILS) to add Remote Maintenance and Monitoring (RMM) capability in an effort to reduce the logistical footprint of the fleet.
1.2 Relevant Equipment: There are 139 and one school-house AN/GRN-29 ILSs. Each system includes AN/GRN-30 Localizer Station, AN/GRN-31 Glideslope Station, shelter, remote control and status indicator and interlock control unit subsystems. There are multiple configurations of Localizer and Glideslope stations based on terrain or other site difficulties. There are roughly 78 dual-frequency (Capture Effect) and 61 single-frequency Localizer Stations. There are roughly 72 Null Reference and 67 Capture Effect Glideslope Stations. The school house ILS can be setup in any configuration, and it does not include any antenna subsystems (dummy loaded). There are no Category III approaches, and no Category II approaches anticipated to be replaced.
1.3 GENERAL
1.3.1 The USAF desires to reduce the logistical footprint of all the Navigation Aids (NAVAIDS) devices.
1.3.2 This program is part of an Air Force Smart Operations for the 21st Century (AFSO21) initiative.
1.3.3 An AFMC 1067 has been approved for this Modernization (Control Number AFFSA090925).
SECTION 2
Applicable Documents
2. Documents listed in this section form a prerequisite to meet the requirements contained in this performance specification. This section may not include all documents cited in other sections of this performance specification, documents recommended for additional information or to be used as examples. While every effort has been made to ensure the completeness of this document list, document users are cautioned that all specified requirement documents cited or implied in Section 3 must be met, whether or not the documents are specifically listed in this section.
2.1. Government Documents
2.1.1 Technical Orders, Manuals, Specifications, standards, and handbooks. The following documents form a part of the performance specification. Any documents called out herein shall include any applicable supplements to those documents as well as other documents specifically called out within them. In the event of conflict between the referenced documents and the contents of this performance specification, the contents of this performance specification shall be considered a superseding requirement.
| Note1: | Documents that are for REFERENCE purposes only are listed as such, where as all others not reference can be tested or inspected to. WARNING: Reference documents may also indicate how an inspection may be conducted or inspected and/or may include procedures for use that should be or should have been considered during the design process. Reference documents are important to the Government as part of the ownership of the system. |
| Note2: | Document numbers preceded by an asterisk (*) are not specifically called out within Section 3, Requirements, portion of the performance specification. Documents that have an asterisk AND not listed as reference are a requirement of this performance specification. |
| Note3: | The latest Revision and Date (as of the date of the contract’s original signature) shall be assumed unless otherwise noted. |
| Note4: | An equivalent, commercially available document may be utilized in lieu of any specified document with written approval by the Government. However, the onus is on the contractor/OEM to prove equivalence or better than a specified source. |
2.1.1.1. Current System Technical Orders. These documents to be used to determine the current configuration and procedures for currently fielded systems.
Table 2.1.1.1
| 31R4-2GRN29-2 |
| Facility Combined Maintenance and Operation Instructions Equipment Shelter, Control Indicator, and Interlock Control |
| 4/15/2006 |
*31R4-2GRN29-3
| Circuit Diagrams Instrument Landing System, Electrical Equipment Shelter, Control Indicator, and Interlock Control |
| 6/1/2006 |
| *31R4-2GRN29-4 |
| Illustrated Parts Breakdown Instrument Landing System, Electrical Equipment Shelter, Control Indicator, and Interlock Control |
| 4/15/2006 |
| *31R4-2GRN29-6WC-l |
| Preventive Maintenance Work Cards; Control Indicator and Interlock Control Instrument Landing System |
| 1/1/2002 |
31R4-2GRN30-2
| Combined Maintenance Operation Instructions and Radio Transmitting Set (Localizer Station AN/GRN-30(V) Part No. 0l00/0200 Radio Transmitting Set (Localizer Station AN/GRN-30(V) |
| 4/30/2008 |
| *31R4-2GRN30-2-1 |
| Supplemental To Operations and Maintenance Manual, Localizer Replacement Antenna Subsystem Part No. 470513-0002/0003 Localizer Replacement Antenna Subsystems, AN/GRN-30(V) |
| 6/6/2003 |
| *31R4-2GRN30-3 |
| Circuit Diagrams Radio Transmitter Set (Localizer Station) AN/GRN- 30(V) |
| 10/1/2006 |
| *31R4-2GRN30-4 |
| Illustrated Parts Breakdown Radio Transmitting Set (Localizer Station) AN/GRN-30(V) |
| 6/1/2006 |
| *31R4-2GRN30-6WC-1 |
| Scheduled Periodic Inspection Workcards, Radio Transmitting Set (Dual Frequency Localizer Station) AN/GRN-30(V) |
| 9/1/2006 |
| *31R4-2GRN30-26WC-1 |
| Scheduled Periodic Inspection Workcards, Radio Transmitting Set (Single Frequency Localizer Station) AN/GRN-30(V) |
| 5/1/2006 |
31R4-2GRN31-2
| Combined Maintenance Operation Instructions and Radio Transmitting Set (Glide Slope Station) AN/GRN-31(V) with Trainer Part No. 098302-0l00/0200 Radio Transmitting Set (Glide Slope Station) AN/GRN-31(V) |
| CHG 10 |
2/1/2004
| *31R4-2GRN31-3 |
| Circuit Diagrams Radio Transmitting Set (Glide Slope Station) AN/GRN-31(V) |
| CHG 4 |
2/1/2004
| *31R4-2GRN31-4 |
| Illustrated Parts Breakdown Radio Transmitting Set (Glide Slope Station) AN/GRN-31(V) |
| CHG 7 |
2/1/2004
*31R4-2GRN31-13
| Circuit Diagrams Radio Transmitting Set (Glide Slope Station) AN/GRN-31(V) |
| 9/15/2006 |
*31R4-2GRN31-6WC-l
| Preventive Maintenance Work Cards; Radio Transmitting Set (Glide Slope Station) AN/GRN-30(V) with Type II Sideband Reference Conversion Kit Part No. 098302-0100 Radio Transmitting Set (Glide Slope Station) AN/GRN-31(V) |
| 5/1/2006 |
| *31R4-2GRN31-16WC-l |
| Scheduled Periodic Inspection Workcards, Radio Transmitting Set (Glide Slope Station) AN/GRN-31(V) with Type IF Sideband Conversion Kit |
| 12/XX/2001 |
*31R4-2GRN31-22
| Combined Maintenance Operation Instructions and Radio Transmitting Set (Glide Slope Station) AN/GRN-31(V) with Type I Capture-Effect Conversion Kit Part No. 098302-0100 Radio Transmitting Set (Glide Slope Station) AN/GRN-31(V) |
| 1/15/1988 |
| *31R4-2GRN31-23 |
| Circuit Diagrams, Radio Transmitting Set (Glideslope Station) AN/GRN-31(V) |
| 9/15/2006 |
| *31R4-2GRN31-24 |
| Illustrated Parts Breakdown, Radio Transmitting Set (Glideslope Station) AN/GRN-31(V) |
| 11/1/2006 |
| *31R4-2GRN31-26WC-1 |
| Scheduled Periodic Inspection Workcards, Radio Transmitting Set (Glideslope Station) AN/GRN-31(V) with Type I Capture-Effect Conversion Kit |
| 5/1/2006 |
2.1.1.2. General Technical Orders
Table 2.1.1.2
| 00-25-234 |
| General Shop Practice Requirements for the Repair, Maintenance, and Test of Electrical Equipment |
| 08/13/07 |
The following general Technical Orders are REFERENCE documents:
| *31-10-24 |
| Installation Practices, Communications Systems grounding, Bonding, and Shielding |
| 01/15/03 |
| *31Z3-822-2 |
| ATCALS Site Requirements |
| 08/15/06 |
2.1.1.3. Instructions and Manuals
Table 2.1.1.3
| AFI 10-602 |
| Determining Mission Capability and Supportability Requirements |
| 3/18/05 |
| *AFI 21-116 |
| Maintenance Management of Communications Electronics |
| 12/07/06 |
| *AFI 33-202 |
| Network and Computer Security |
| 2/3/06 |
| *AFI 33-220 |
| On-Hook Telephone Security |
| 11/21/07 |
| AFI 91-302 |
| Air Force Occupational and Environmental Safety, Fire Protection and Health (AFOSH) Standards |
| 4/18/94 |
| AFMAN 11-225 |
| US Standard Flight Inspection Manual Procedures (also known as Federal Aviation Administration Order 8200.1c) |
| 02/01/07 |
| *DoDI 4650.01 |
| Policy and Procedures for Management and Use of the Electromagnetic Spectrum |
| 1/9/09 |
The following Instructions and Manuals are REFERENCE documents:
| *AFI 13-203 |
| Air Traffic control |
| 03/17/09 |
| *AFI 33-115, Vol 1 |
| Network Operations (NETOPS) |
| 05/24/06 |
| *AFI 33-221 |
| Communications Security: Protected Distribution Systems (PDS) |
| 12/11/00 |
| *AFI 63-101 |
| Acquisition and Sustainment Life Cycle Management |
| 4/17/09 |
| *AFI 63-131 |
| Modernization Program Management |
| 11/06/09 |
| *AFI 63-1201 |
| Lifecycle Systems Engineering |
| 7/23/07 |
| *AFI 63-1301_C1 |
| Assurance of Communications, Navigation, Surveillance, Air Traffic Management and Navigation Safety Performance |
| 8/2/06 |
| *AFMAN 11-217V1 |
| Instrument Flying Regulations |
With IC-96-1, IC-96-2 and IC-98-1 01/03/05
| *AFMAN 13-220 |
| Deployment of Airfield Operations |
| 05/01/97 |
| *AFPD 13-2 |
| Air Traffic Control, Airspace, Airfield and Range Management |
| 08/07/07 |
| *AFPD 33-2 |
| Information Protection |
| 4/19/07 |
| *CJCSI 6212.01E |
| Interoperability and Supportability of Information Technology and National Security Systems |
| 12/15/08 |
| *DoDD 4151.18 |
| Maintenance of Military Material |
| 3/31/04 |
| *DoDI 4630.8 |
| Procedures for Interoperability and Supportability of Information Technology (IT) and National Security Systems (NSS) |
| 6/30/04 |
2.1.1.4. Specifications, Standards, Orders and Advisory Circulars Table 2.1.1.4
The following Military Standard documents are MANDATORY and REQUIRE COMPLIANCE. The solution will be tested to the following Military Standards.
| MIL-STD-130N |
| Identification Marking of U.S. Military Property |
| 12/17/07 |
| MIL-STD-188-124B |
| Grounding, Bonding and Shielding (Notice 3) |
| 12/18/00 |
| *MIL-STD-810G |
| Test Methods: Environmental Engineering Considerations and Laboratory Tests |
| 10/31/08 |
| MIL-STD-882D |
| DoD Standard Practice for System Safety |
| 2/10/00 |
The following specifications, standards, orders and advisory circular documents are REFERENCE documents.
| *MIL-STD-1472F |
| Human Engineering |
| 8/23/99 |
| MIL-STD-1686C |
| Electrostatic Discharge Control Program for Protection of Electrical and Electronic Parts, Assemblies and Equipment (excluding electrically initiated explosive devices) |
| 10/25/95 |
| *MIL-HDBK-310 |
| Global Climatic Data for Developing Military Products |
| 6/23/1997 |
| *MIL-HDBK-419A |
| Grounding, Bonding and Shielding for Electronic Equipment and Facilities |
| 12/29/87 |
| MIL-HDBK-454B |
| General Guidelines for Electronic Equipment, Guidelines 1,5,9,15 & 66 |
| 4/15/07 |
| *MIL-E-4158E |
| General Requirements for Ground Electronic Equipment |
| 1/11/73 |
EPA Title III, EPA 550-B-01-003
| List of Lists, Consolidated List of Chemicals Subject to the Emergency Planning and Community Right-To-Know Act (EPCRA) and Section 112(r) of the Clean Air Act |
| 10/2001 |
2.1.1.5. International Agency Documents.
Table 2.1.1.5
| EN DIRECTIVE 2002/95/EC |
| Restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS Directive, reference also http://www.rohs.gov.uk/ ) |
| (Latest) |
ICAO Annex 10 Vol 1 Fifth Edition International Civil Aviation Organization (ICAO) International Standards and Recommended Practices, Aeronautical Telecommunications (Latest)
| *ICAO 8071 Vol I |
| Manual on testing of Radio Navigation Aids |
| (Latest) |
2.2. Non-Government Documents. Technical society and technical association specifications and standards are generally available for reference from libraries. They are also distributed among technical groups.
Table 2.2
| *LPI-175 |
| Lightning Protection Institute, Standard Installation Code |
| (Latest) |
| NFPA-70 |
| National Electrical Code, National Fire Protection Agency |
| (Latest) |
| NFPA-77 |
| Static Electricity |
| (Latest) |
| NFPA-780 |
| Standard for Installation of Lightning Protection Systems |
| (Latest) |
| *UL96A |
| Underwriters Laboratories, Lightning Protection Standard |
| (Latest) |
| *IEEE Std 142-1991 |
| Institute of Electrical and Electronics Engineers, Recommended Practices for Grounding of Industrial and Commercial Power Systems |
| (Latest) |
| *IEEE Std 1100-1999 |
| Recommended Practices for Powering and Grounding of Electronic Equipment |
| (Latest) |
| *IEEE Std 519-1992 |
| Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems |
| (Latest) |
The following are Non-Government documents are REFERENCE documents:
None
SECTION 3
3. Requirements
3.1. Collective.
3.1.1. The Modernization shall in no way degrade the existing ILS performance characteristics or signal-in-space. The current system specifications and leading particulars can be found in T.O. 31R4-2GRN-29-2, 31R4-2GRN30-2 and 31R4-2GRN31-2.
3.1.2. It is expected that the RMM subsystem will be integrated with the monitor portion of the ILS design. The ILS RMM group shall consist of the various sensors, microprocessor, and software necessary to remotely monitor, control, record, and certify proper operation of the subsystems comprising ILS.
3.2. Performance Criteria
All requirements are considered “Threshold Requirements” that must be met. A “Threshold Requirement” is one that describes a minimum performance level to satisfy the intent of this Specification. The ability to exceed Threshold requirement is anticipated and encouraged.
3.2.1. Key Performance Parameters (KPP). KPPs are critical and essential performance parameters that must be met in order to obtain desired system performance and effective military performance.
Table 3.2.1
NO.
DESCRIPTION
REQUIREMENTS
| KPP-1 |
| Signal-in-Space |
| The ILS signal shall be compatible with ICAO Annex 10, Volume 1, Chapter 3, and AFMAN 11-225, as well as successfully pass flight check with the same or less restrictions than the currently installed system at the same category of approach. A tailored course width down to 2.3 degrees or 700 foot width at threshold shall be available at the Localizer station. |
| KPP-2 |
| Remote Maintenance and Monitoring |
| All parameters required for maintenance and monitoring actions shall be available both at the ILS site AND remotely via communication access port. The communicated data shall be transmitted in the correct engineering units requiring no conversion by the technician. |
| KPP-3 |
| Remote Flight Check |
| The modified system shall be capable of remotely communicating with the flight check aircraft that is local to the installation, and shall be capable of remotely adjusting the necessary parameters to comply with flight check instructions. This excludes commissioning flight check and any instruction that is inherently a physical adjustment (e.g. cutting cable nulls). |
3.3. General (GEN)
3.3.1. Certain general features and operating characteristics, either due to operational mandate or force allocation requirements, are required.
Table 3.3.1
| NO. |
| DESCRIPTION |
| REQUIREMENTS |
| GEN-1 |
| Communication Methods |
| Communicates (for status and diagnostics) minimally via 56k-baud Hayes compatible modem (dialup) and TCP/IP Ethernet. |
| GEN-2 |
| New or Modified Cabling |
| Interconnect/Interface cabling shall be provided as part of the system. Cabling generally refers to, but is not limited to: all power, signal communications, chassis ground, earth-grounding and lighting protection system cables. |
| GEN-3 |
| RF Cables |
| Heliax® RF cabling or equivalent shall be provided. RF cables shall be constructed of phase and temperature stable material. |
| GEN-4 |
| Redundant Equipment |
| Existing redundancy within the transmitter, receiving and monitoring equipment with automatic switching upon failure of the main LRU shall be maintained. |
| GEN-5 |
| Test Equipment |
| No unique test equipment shall be required. |
| GEN-6 |
| Support Equipment |
| All unique support equipment shall be provided with each system. |
| GEN-7 |
| Internal Wiring |
| To the maximum extent possible, all multi-conductor wiring and cable design should follow the guidelines of MIL-HDBK-454, Guideline 66. |
| GEN-8 |
| Power Interruption |
| In the event commercial and generator power is interrupted, the ILS shall remain operational for up to eight hours, and shall remain fully operational during power source switching. |
3.3.2. Environmental (ENV)
Table 3.3.2
| NO. |
| DESCRIPTION |
| REQUIREMENTS |
No specific environmental requirements specified for this Modernization.
3.4. Maintenance and Remote Status (MRS)
Table 3.4
| NO. |
| DESCRIPTION |
| REQUIREMENTS |
| MRS-1 |
| ATC Remote status indicator |
| Remote equipment status shall be provided that is approved by the Federal Aviation Administration (FAA) for use within a remote Air Traffic Control (ATC) location. The indicator shall also be the primary communication connection to the field equipment such that any available status, remote diagnostics or other communications should primarily connect through the ATC status indicator (other communications paths may exist). |
| MRS-2 |
| Fault Isolation |
| The equipment shall be provided with sufficient instructions or diagnostics tools to troubleshoot the equipment down to specific LRUs with a 95% or better confidence to either that LRU or next higher assembly. |
| MRS-3 |
| Diagnostics |
| Performs start-up and frequent periodic diagnostics that identifies issues and potential problems per MRS-2 requirement. The RMM equipment shall have self-diagnosis ability to identify faults within the RMM subsystem. |
| MRS-4 |
| Remote Monitor/Control |
| Maintenance personnel shall be able to remotely monitor and control all parameters and functions available in local control. This includes, but is not limited to, all system parameters, faults, errors, settings, report generation, user information, password control, system adjustments, all resets, equipment alignment, etc. |
| MRS-5 |
| User Level Control |
| Any maintenance software shall include User ID and Password controls at some level to prevent unauthorized access. |
| MRS-6 |
| System Information |
| Provide all information “Real Time”[footnoteRef:1] as it pertains to Site ID, system status, system configuration, equipment settings, equipment status (ON/OFF), equipment performance and parameters and test results. [1: Note that “Real Time” refers to when a connection has been established locally or remotely to the system using the provided equipment and/or software designated for maintenance and/or monitoring .] |
| MRS-7 |
| Alarm Information |
| Provide all information “Real Time”1 as it pertains to alarm conditions (ON/OFF), alarm status (Enabled/Disabled) and alarm thresholds. |
| MRS-8 |
| Fault Information |
| Provide all information “Real Time”1 as it pertains to fault conditions and fault limits. |
| MRS-9 |
| Archived Information (Logging) |
| RMM equipment shall keep one or more logs for historical, diagnosis, and other lookup purposes. Time stamping and local storage of the current status of alarms and alerts, data values, alarm and alert thresholds, and sufficient alarm and alert history necessary to analyze the system performance for diagnostic and maintenance purposes shall be available. Fault history shall include the last normal parameter values and the post-fault (prior to shutdown) parameter values for the three most recent system faults. At least 50 events or 4 days of information (whichever is more), stored in a first-in-first-out sequence, shall minimally be available for retrieval. Additional events such as maintenance logon(s), adjustments (changes) to system parameters, and power source status (i.e. commercial, generator, or battery/UPS) shall also be provided. |
| MRS-10 |
| Alarm Control |
| Provide “Real Time”1 control and feedback as it pertains to all alarm activation and threshold adjustment, alarm bypass, alarm response and alarm reset. |
| MRS-11 |
| Fault Control |
| Provide “Real Time”1 control and feedback as it pertains to all fault limit settings, fault conditions, fault checks and fault reset. |
| MRS-12 |
| Password Control |
| Provide “Real Time”1 control and feedback as it pertains to password assignment, password deletion, password reset, and password maintenance (to include changing of security level). |
| MRS-13 |
| Transmitter Control |
| Provide “Real Time”1 control and feedback as it pertains to starting, stopping and adjustment of transmitters. |
| MRS-14 |
| System Control |
| Provide “Real Time”1 control and feedback as it pertains to aligning the system, configuring the system and performing system adjustments (e.g. calibration/test modes, monitor functions, system ID, operating parameters). |
| MRS-15 |
| Report Generation |
| Provide “Real Time”1 control and feedback as it pertains to performance of ground checks and diagnostics. |
| MRS-16 |
| On-Site Specialized Maintenance Time |
(whole system) The on-site time required by specialized maintenance, meaning a technician specially trained on the particulars of the system instead of electronics or mechanics generalities, shall be limited to the following:
a) ≤ 0.5% of all PMI actions required on site
b) 100% remote flight check capable (excluding initial) 100% of common failure items, LRUs, able to be replaced by non-specialized maintenance personnel, and the system brought back online remotely by regionalized specialized maintenance. See also Paragraph 3.9.
| MRS-17 |
| Remote Status Exchange |
| Equipment status should be able to be exchanged within 30 seconds at 30 kbps after communications negotiation |
| MRS-18 |
| Real Time Clock |
| For logging purposes, a real time, GPS clock/calendar incorporating at least date, hours, minutes, and seconds (time ≥ 6 digits) shall be provided to ensure date and time accuracy to within 1 minute a month. |
| MRS-19 |
| Master Startup/Reset |
| RMM software shall have a master startup/reset and a master shutdown function to start or stop ILS operation. |
| MRS-20 |
| User Limits |
| User defined limits shall be available for most if not all parameters to define both alert and alarm status by comparison to the user-set limits. |
| MRS-21 |
| Messages |
| A priority alarm message shall be generated when a failure occurs within an ILS subsystem which causes a loss of service to the user (i.e. shutdown). Non-priority messages shall be generated to alert controllers and maintainers for either fault or alert conditions (see Appendix A for definition). All alarm notifications shall be also be transmitted to a remote control status unit available to the local air traffic controllers. |
| MRS-22 |
| Non-Volatility |
| All control settings, operational parameters and limits, initialization data, data files and fault history shall be stored locally with sufficient power backup capacity to ensure at least 90 days non-volatility. |
| MRS-23 |
| Sampling Rate |
| Data sampling shall occur at least once every second. |
| MRS-24 |
| Spare I/O |
| Excess/spare input and output capacity shall be available for each the Localizer and Glideslope stations. These I/O shall provide user-configurable alarms and alerts and be available remotely as with all the pre-programmed I/O (i.e. parameters). |
| MRS-25 |
| Additional Sensors |
| In addition to ILS equipment monitoring, additional sensors at each main equipment shelter shall be provided for intrusion detection, smoke detector, obstruction light current, AC power, and both inside and outside temperature. |
| MRS-26 |
| RMM Failure |
| Failures within the RMM subsystem shall not degrade the air traffic control capability of the ILS. |
(see also para 3.12) A remotely controlled VHF radio, antenna and necessary supporting hardware shall be incorporated into the solution for remote flight check by RMC personnel. Only one radio setup is required per locale (i.e. one per base). It is expected that voice transfer will be over telephone and/or other similar media.
| MRS-28 |
| Remote Status Power Interruption |
| The remote status and remote maintenance unit(s) shall provide eight hours of operations in the event that commercial power is lost. This includes communication access to the unit(s), such that remote maintenance personnel can still maintain the system within the eight hours. |
3.5. Interfaces (IF)
Table 3.5
| NO. |
| DESCRIPTION |
| REQUIREMENTS |
| IF-1 |
| Cable Surge Protection |
| All new incoming and outgoing cables for the facility shall be protected from over-voltage (surge) with a disconnect when activated |
| IF-2 |
| Cable Shields |
| All incoming, outgoing and interconnecting cable shield for the facility shall be terminated and grounded IAW the current MIL-STD-188-124 before entering the facility. All cables outside the shielded cabinetry or shielded shelter (if so equipped) shall be shielded. Cables inside cabinetry or inside shielded shelter (if so equipped) that are low signal level (<45 Volts peak) shall be shielded. |
| IF-3 |
| EMI/RFI |
| All equipment or equipment cabinetry shall be EMI/RFI shielded. |
| IF-4 |
| Metal-to-Metal Connections |
| All metal-to-metal connections shall be compatible and designed in such a way as to prevent Galvanic corrosion. |
| IF-5 |
| Site Power |
| The modified equipment shall be capable of interfacing within the current site power requirements of the AN/GRN-29 including emergency, backup power supplies (i.e. generators and possibly site UPS). |
≤ 7.2 KVA at each the Localizer and Glideslope
| IF-6 |
| Localizer Antenna Array |
| The existing Localizer antenna array, Distribution Unit (DU) box and interconnect cables between the antenna array and Localizer shelter shall be maintained and interfaced with any newly proposed equipment. |
| IF-7 |
| Glideslope Tower |
| The existing Glideslope tower shall be reutilized. |
| IF-8 |
| Glideslope Antennas |
| The existing Glideslope antennas shall be maintained and interfaced with any newly proposed equipment. |
| IF-9 |
| Shelters |
| Both the Localizer and Glideslope shelters shall be reutilized. |
| IF-10 |
| Shelter Power Distribution |
| The existing power distribution within the shelters shall be reutilized to the maximum extent possible. The functionality of the recently upgraded surge protection shall not be degraded in any way. |
| IF-11 |
| HVAC |
| The current HVAC systems shall be reutilized. Any proposed Modernization shall remain within the current working limits (i.e. BTU capacity) of both the heating and cooling systems. |
| IF-12 |
| Grounding and Lightning Protection |
| The existing Earth Electrode Subsystem (EES), lightning protection system and grounding system shall not be degraded in any way. Any proposed equipment shall follow MIL-STD-188-124B. All new equipment shall interface with the existing grounding system(s). |
| IF-13 |
| ATC Facility Status |
| An interface with the ATC facility shall be maintained that indicates ILS equipment status. Changes in equipment status shall be immediately displayed within the ATC facility with audible and visual alarms when appropriate. |
| IF-14 |
| ATC Interlock |
| Some ATC facilities may include an interlock control to prevent dual-instrumented runways from transmitting both approaches at the same time. Any existing interlock capability shall be retained. |
| IF-15 |
| Status communication lines |
| Replacement system shall interface minimally to the existing communication lines between the equipment shelters and the ATC tower. |
| IF-16 |
| ATC Site Power |
| Equipment located within the ATC facilities shall operate at 100-250VAC, 50-60Hz, single phase, 4-wire. Note that USAF airfield power conditioning does not always meet commercial power standards for transient suppression, frequency stability, and voltage stability, so this shall be compensated for within any proposed equipment. |
3.6. Reliability and Maintainability (RM). Reliability and Maintainability values shall be calculated using AFI 10-602, Attachment 11. These requirements shall be maintained over the minimum expected service life of 15 years for any new equipment.
Table 3.6
| NO. |
| DESCRIPTION |
| REQUIREMENTS |
| RM-1 |
| Whole System Up-Time Rate (Annual) |
| Modified AN/GRN-29 system shall provide no less than 98% Equipment Operational Availability (Ao). |
| RM-2 |
| Mean-Time-To-Repair (MTTR) |
| The MTTR of any system or subsystem of the equipment shall be 30 minutes or less. Applies to modified components only. |
| RM-3 |
| Mean-Time-Between Critical Failure (MTBCF) |
| The MTBCF for any system or subsystem of the equipment shall be greater than or equal to 5000 hrs. Applies to modified components only. |
3.7. Computer requirements (CMP). Computers (desktop, laptop, rack mounted, etc) that are provided with any portion of the system shall meet the following requirements. See other contract documents (e.g. SOW, contract itself, etc) for quantity of computers and/or software licenses.
Table 3.7
| NO. |
| DESCRIPTION |
| REQUIREMENTS |
| CMP-1 |
| Laptop Computer & Microsoft Windows OS |
| All computers supplied shall be portable; i.e. laptop, and shall have a Microsoft Windows operating system.The current USAF platform operating system is required unless otherwise approved by the Government. |
| CMP-2 |
| General Computer |
| The total configuration to include hardware and software shall be adequately sized as to allow the operator to utilize the equipment-related software without prolonged delays, allow full usage of all equipment-related software features and storage for equipment-related files (e.g. log files, error reports, electronic technical manuals for the equipment and similar). NOTE: Any delays caused by computer-related issues will be accounted for in the Ao and MTTR. |
| CMP-3 |
| Software Maturity |
| Only software in final version and only software currently supported by the manufacturer shall be installed on any computer/laptop. |
| CMP-4 |
| Hard Drive |
| The hard drive shall not be more than 50% utilized after the operating system, all software, patches and updates have been installed. |
| CMP-5 |
| Processor |
| The latest technology processor at the time of build shall be provided. |
| CMP-6 |
| Memory |
| Sufficient memory shall be provided to run the operating system and necessary software efficiently in a typical situation. |
3.8. Materials and Processes
3.8.1. Toxic Chemicals, Hazardous Substances, and ODCs (HAZ)
Table 3.8.1
| NO. |
| DESCRIPTION |
| REQUIREMENTS |
| HAZ-1 |
| RoHS |
| The equipment shall comply with the latest revision of the RoHS Directive, EN DIRECTIVE 2002/95/EC, and GEIA Standards, GEIA-STD-0005-1 and GEIA-STD-0005-2. |
| HAZ-2 |
| HAZMAT |
| The use of toxic chemicals, hazardous substances, or ozone depleting chemicals (ODCs) shall be avoided, whenever feasible. EPA Title III, List of Lists, EPA 550-B-01-003, provides a listing of toxic chemicals to be avoided. |
| HAZ-3 |
| MSDS |
| The supplier shall provide copies of Material Safety Data Sheets (MSDS) for all hazardous or toxic materials at least 60 days prior to the first installation. |
3.8.2. Recycled, Recovered, or Environmentally Preferable Materials shall be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs.
3.8.3. Nameplates and Product Markings
3.8.3.1. Electrostatic Discharge (ESD). Identification markings including ESD warning labels shall be affixed on all ESD-sensitive subassemblies so as to be visible to maintenance personnel prior to maintenance handling of the equipment. Enclosures, assemblies, and subassemblies containing class 1 or class 2 ESD sensitive components (as defined by MIL-STD-1686), shall be appropriately marked using the documentation in MIL-STD-1686 as an example.
3.8.3.2. Identification Plates. Identification plates, labels and markings shall be located in conspicuous spaces on the equipment. Plates shall provide the necessary information to uniquely identify the unit or subassembly and marked IAW MIL-STD-130N. I.D. marking plates or labels shall be durable and legible over the intended 15 year service life of the equipment.
3.9. Personnel Requirements
3.9.1. Modernization objective is to centralize the maintenance of the ILS system by creating regionalized maintenance centers (RMCs). Each center will manned by skilled technicians, Special Maintenance Technicians (SMTs), civilians and military personnel who will monitor and manipulate the NAVAIDS as required for scheduled and unscheduled maintenance including flight check.
3.9.2. Site personnel shall be to be limited to technicians qualified to change out Line Replaceable Units (LRUs) and generic maintenance items such as cleaning, corrosion control and arranging for base-level support items not maintained or controlled by the regionalized maintenance centers (e.g. Civil Engineering for HVAC support).
3.9.3. For planned maintenance, SMTs shall only be required to travel to each ILS site one time per year, one workday (8 hrs) on site, for required Periodic Maintenance Inspection (PMI) and system verification.
3.9.4. For unscheduled maintenance and outages, site personnel shall be able to replace the LRU and contact the RMC to bring the system back to a fully operational state remotely. In rare occasions, the RMC SMTs may need to travel to the site to align/adjust the LRU or further troubleshoot the system to bring it back into a fully operational state. On-site, SMT actions shall be minimized to the fullest extent feasible to realize the maximum benefit of remote maintenance.
3.10. Workmanship and Design
3.10.1. General workmanship acceptance criteria shall be based on best commercial practice. The contractor’s workmanship practices will be evaluated based on MIL-HDBK-454, Guidelines 1, 5, 9 and 15 and USAF Technical Manual T.O. 00-25-234.
3.10.2. A listing of the utilized “best commercial practice standards” shall be provided to the Government that includes all the standards to which the equipment was designed to (or referenced during the design). These standards shall be physically or electronically be available for review by the Government minimally at the supplier’s facility.
3.11. Safety
3.11.1. Known hazards shall be controlled to protect personnel, equipment, and property. System safety shall be consistent with the operational requirements of the system.
Table 3.11.1
| NO. |
| DESCRIPTION |
| REQUIREMENTS |
| SAF-1 |
| OSHA |
| The system shall comply with all OSHA requirements per AFI 91-302. |
| SAF-2 |
| NFPA-70 (NEC) |
| All electrical systems shall comply with the NEC. |
| SAF-3 | |
| Lightning Protection | |
| a) | Meets requirements of MIL-STD-188-124B for grounding, bonding and shielding. |
| b) | Meets requirements of NFPA-77 for static electricity. | |
| c) | Meets requirements of NFPA-780 for installation of lightning protection systems | |
| d) | Lightning rods shall NOT be painted to provide maximum conductive interface to the environment electrically. | |
| SAF-4 |
| Control |
| MIL-STD-882D |
| SAF-5 |
| Internal Chassis Ground |
| A ground terminal or equivalent function, shall be provided on all LRUs within the equipment. The ground terminal shall be located on the input power connector or on the equipment terminal board and shall connect to the internal chassis by means of conductors at least equal in size to one of the power input conductors. Safety grounding within the equipment shall terminate on the ground terminal. Grounds and AC return lines shall be separated. If the Supplier believes this is not required for any specific LRU of the equipment being offered, the cost, schedule risk, and the benefits of the proposed equipment configuration must be fully described in the suppliers response to the Government, and requires approval by the Government. |
| SAF-6 |
| External Chassis Ground |
| A ground conductor shall be included with the power conductors and shall connect to the ground terminal of individual units when power is routed externally between individual units of the equipment. |
| SAF-7 |
| Safety Shielding |
| Protective shields shall be provided to protect personnel from accidental contact with parts in excess of 30V RMS or 30V DC during operation or maintenance actions. |
3.12. Flight Check Radio (FCR)
3.12.1. A remotely-controlled radio transceiver, antenna, cable and interface (flight check radio system) shall be supplied to remotely communicate with flight check aircraft within the vicinity of the instrumented airfield. NOTE that radio system requirements listed in this paragraph are in ADDITION to pertinent requirements listed (i.e. safety, materials and processes, related documentation, reliability, etc) for the ILS system as a whole. In the case where there are duplicate requirements to those of the ILS system (e.g. source power), the requirement in this paragraph overrides the ILS system requirement for the flight check radio system only.
Table 3.11.1
| NO. |
| DESCRIPTION |
| REQUIREMENTS |
| FCR-1 |
| Two-way communication |
| A radio transceiver shall be provided capable of monitoring/receiving and transmitting VHF radio frequencies over the world-wide band of frequencies utilized for FAA flight check (118 to 138 MHz). |
| FCR-2 |
| Setup Time |
| Capable of setup and operation within 30 minutes by one USAF personnel |
| FCR-3 |
| Remote Status |
| Operating condition shall be available to both local and remote maintainers. |
| FCR-4 |
| Telephone and Ethernet Connectivity |
| The radio shall interface with minimally commercial telephone and Ethernet (TCP/IP, VOIP) using commercial standard connections. Connectivity to hardwire systems shall be provided. |
| FCR-5 |
| Installation Quantity |
| Only one flight check radio system is required per installation site. I.e. Dual instrumented runways or sites (e.g. USAF base) with multiple ILS systems require only one flight check radio. |
| FCR-6 |
| Fault Isolation |
| The radio shall be capable of identifying faults to a specific parameter or subsystem. |
| FCR-7 |
| Diagnostics |
| Startup and periodic diagnostics shall be automatically performed within the radio system. |
| FCR-8 |
| Remote initiation |
| The radio system shall be capable of initiating communication and remote maintenance from a remote location without local assistance. |
| FCR-9 |
| Communication Range |
| The radio system shall be capable of transceiving VHF communications over at least 30 nautical miles with acceptable VHF AM voice performance for Terminal Communication (TCOM) per Section 211 of AFMAN 11-225. |
| FCR-10 |
| Source Power |
| 90-250 VAC, 48 to 62 Hz |
| FCR-11 |
| Power Interruption up-time |
| The radio system shall be capable of operation for two hours when source (i.e. commercial or generator) power has been interrupted. |
| FCR-12 |
| RF Cables |
| Heliax® RF cabling or equivalent shall be provided. RF cables shall be constructed of phase and temperature stable material. |
| FCR-13 |
| VHF Channel Spacing |
| Supports 25 kHz or better (i.e. 12.5 or 8.33 kHz) |
| FCR-14 |
| Antenna Pattern |
| Omni-directional |
| FCR-15 |
| Continuous Operation |
| Capable of continuous transmission and receiving operations. |
| FCR-16 |
| Remote Monitor/Control |
| Remotely control all parameters and functions available in local control. Examples include frequency selection, preset selection, transmitter output power, squelch, percent modulation, and results of self-test(s). |
| FCR-17 |
| “Real Time”[footnoteRef:2] Information [2: Note that “Real Time” refers to when a connection has been established locally or remotely to the system using the provided equipment and/or software designated for maintenance and/or monitoring .] |
Site ID, system status, system configuration and settings, performance parameters, test results, alarm conditions, fault information, archived information, alarm and fault parameters (limits, bypass, reset), system control, and reports shall be available in “Real Time” with the latest information available both local and remote.
APPENDIX A
Definitions & Acronyms
A. DEFINITIONS & ACRONYMS
A.1. Air Traffic Control (ATC) A.2. British Thermal Units (BTU) A.3. Distribution Unit (DU). A Localizer subsystem, a box, located at the Localizer antenna array that distributes signals throughout the array and to/from the Localizer shelter.
A.4. Earth Electrode Subsystem (EES) A.5. Federal Aviation Administration (FAA) A.6. Force Smart Operations for the 21st Century (AFSO21) A.7. Global Information Grid (GIG). The global military network or NIPRNET.
A.8. Global Positioning System (GPS) A.9. Heating, Ventilation and Air Conditioning (HVAC) A.10. Input/output (I/O) A.11. Instrument Landing System (ILS). AN/GRN-29 is the current USAF standard.
A.12. Line Replaceable Unit (LRU). An end item, component, which can be replaced in the field by field technicians.
A.13. Material Safety Data Sheets (MSDS) A.14. National Electric Code (NEC), NFPA-70 A.15. National Fire Protection Agency (NFPA) A.16. Navigational Aids (NAVAIDS) A.17. Non-Classified Internet Protocol Router Network (NIPRNET) A.18. Regionalized Maintenance Center (RMC). A maintenance responsible organization that is responsible for maintenance of an entire region of NAVAIDS. The center contains several SMTs capable of performing all required remote maintenance actions.
A.19. Remote Maintenance and Monitoring (RMM) A.20. Site Technician. Technician that is located at or near (within driving range) the ILS site. The technician is capable of working on electronics in general, but does not necessarily posses ILS-specific knowledge. They are capable of replacing LRUs, making minor adjustments or measurements, corrosion control, cleaning and similar.
A.21. Special Maintenance Technicians (SMT). A highly experienced (expert) technician on the ILS system.
A.22. Status Conditions A.22.1. Alert condition (yellow). An equipment status where a measured variable is nearing a critical threshold value that will eventually change the operational state of the equipment. An alert shall be used to notify the controllers and maintainers of a “yellow” condition which requires attention or continued monitoring to prevent a fault condition.
A.22.2. Fault condition (red). An equipment status where a portion of the system has failed or exceeded a critical threshold value for a measured parameter. This may or may not necessarily cause system shutdown, but requires attention by the controllers and maintainers. A fault shall be used to notify the controllers and maintainers for a “red” condition which requires immediate attention.
A.22.3. Normal condition (green). An equipment status where all portions of the system are functioning within normal parameters. The controllers and maintainers will be shown a “green” condition which requires no attention or action.
A.23. United Sates Air Force (USAF) A.24. Voice Over Internet Protocol (VOIP) image1.png image2.jpeg image3.png
