Technical Handbook

ManualsBrandsAbacus Innovations ManualsElectronics7033 Dual Frequency Glide Path

Table Of Contents

1250$5&

INSTRUMENT LANDING SYSTEM

Technical Handbook

21829-3.6

Summary of content (132 pages)

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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 TECHNICAL HANDBOOK NORMARC 7033 TABLE OF CONTENTS PART I INTRODUCTION.....................................................................................1-1 1 GENERAL INFORMATION.............................................................................1-1 1.1 Introduction........................................................................................................ 1-1 1.1.1 ILS Overview ...............................................
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 PART II INSTALLATION .....................................................................................5-1 5 MECHANICAL INSTALLATION ......................................................................5-1 5.1 Mounting Kit MK1343A....................................................................................... 5-1 5.2 Moving RF Connectors.......................................................................................
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 7.5.5 DDM Adjustment.......................................................................................... 7-14 7.6 Monitor Alarm Setting Procedure ....................................................................... 7-14 7.7 Maintenance Limit Adjustments ........................................................................ 7-15 7.8 Adjustment points.........................................................................................
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Figure 9-2 Figure 9-3 Figure 9-4 Figure 9-5 Figure 9-6 Figure 9-7 Figure 9-8 Figure 9-9 Figure 9-10 Figure 9-11 Figure 9-12 Figure 9-13 Figure 9-14 Figure 9-15 Figure 9-16 Figure 10-1 Figure 10-2 Figure 10-3 Figure 10-4 Figure 10-5 /LVW RI )LJXUHV LL MO1212A Blockdiagramm .................................................................... 9-7 TCA1218A Block diagram part 1 ...........................................................
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 LIST OF TABLES Table 7-1 Table 7-2 Table 7-3 Table 7-4 Table 7-5 Table 7-6 Table 7-7 Table 7-8 Table 7-9 Table 7-10 Table 9-1 ILS configuration settings. ................................................................... 7-1 Access level strap settings. ................................................................. 7-2 Remote Control Setup .........................................................................
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 3$57 , ,1752'8&7,21 1 General Information This paragraph gives a description of a typical ILS installation and the Normarc Glidepath system. Conventions and abbreviations used in this manual are also given. 1.1 Introduction This is an overview of Normarc’s NM703X ILS glidepath systems. 1.1.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 A block diagram is shown below: GP TRANSMITTER ILS Localizer and Glide Path REMOTE CONTROL UNIT U TRANSMITTER AND MODULATOR I and II CSB CL SBO CL CSB CLR* MONITOR I and II CL CLR* DS ANTENNA DISTRIBUTION NETW. ** MONITOR NETWORK NF *** M SLAVE PANEL 24V BATTERY L POWER SUPPLY MAINS INPUT 220V/110V AC * CLR signals only used for 2-frequency systems. ** Antenna distribution network not used for Null Reference.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 • System • Assembly • Module Systems have type numbers starting with NM, for example NM 7033. Systems consist of assemblies, modules and parts. Assemblies have type numbers consisting of three letters, a three- or four- digit number and a letter, for example LPA 1230A. LPA is an abbreviation of Localizer Power amplifier Assembly, 1230 is a running number, and the last letter is the variant designator.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 2 Physical Organization 2.1 Module and Assembly Location The figures on the following pages show the locations of the modules in the main cabinet. Figure 2-1 shows the main section of the GP cabinet from a front view, with indications of the plug-in board locations. Figure 2-2 shows the same section from a rear view, while Figure 2-3 shows the top half of the wall-mounted section.
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7(&+1,&$/ +$1'%22. 1250$5& 1 1 ,167580(17 /$1',1* 6<67(0 PS 1227A OS1221B MF 1219A LF 1223A TCA 1218A MO 1212A RMA 1215A COA 1207C GPA 1231A GPA 1232A HBK 536-1 Figure 2-1 NM 7033 Module Location - Front view.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 MB 1203 TX2 CLR TX1 CLR TX2 CL TX1 CL COA 1207C A A SBO 1 SBO 2 SBO SBO CSB CSB SBO 1 SBO 2 IN IN OUT DUMMY OUT DUMMY IN IN SBO OUT SBO CSB CSB DUMMY OUT DUMMY VIEW A-A HBK 593-1 Figure 2-2 NM 7033 Module Location - Rear view of main section.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 3 System description This chapter gives a functional overview of the NM70xx ILS systems. 3.1 Overview The complete ILS electronic system is housed in a compact, wall mounted cabinet. The cabinet and the electronics, except for RF units, are common to the LLZ and GP systems. Monitor input signals Monitor Transmitter Remote Control NAV signals out External sensors RMS TX control Comm.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 The change-over section contains coaxial relays, attenuators and phasers for the RF outputs. The transmitter / PA section contains the PA blocks including couplers etc. for each output. The cabinet is divided in two parts, with the rear part fixed to a wall, and the front part hinged to give access to interior of the cabinet. All external connections are made to the rear part of the cabinet. 3.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 TX Control unit. All functions in the TX Control are based on digital hardware to ensure the highest integrity. 3.6 Remote Monitoring (RMS) Unit The RMS unit contains the system microprocessor. It handles storage and read-out of monitor parameters, measurements for maintenance and fault finding, and performs fault analysis to isolate faults to line replaceable modules. It is also used to set monitor limits and transmitter adjustments.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 . RMM program RMM program RMM program Modem Modem Modem Modem Local Remote 1 Remote 2 RMS data bus Local parameter storages Maintenance data bus Local measuring points RMS hardware RMS system RMS core program Local Keyboard/ Display NM70xx HBK 598-1 RMM system Figure 3-2 The NM 7000 series RMM/RMS systems. The centre of the RMS system is a CPU with the RMS core program.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 The local keyboard/display allow readings and control through an LCD display and a sevenbutton keypad. This gives access to the RMM functionality without the need for a PC. 3.9.1 RMM Access Access to the RMM system is controlled by multiple hardware and software access controls. One password is required for each access level, i.e. one password for level 1, two for level 2 and three for level 3.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 accessible from the front panel keypad and LCD display. In addition a quick-read function gives read-out of all main monitor parameters in a glance. 3.9.4 Diagnostic functions The system contains internal measuring points and diagnostic functions to isolate faults to failed modules. The values measured are referred to as maintenance parameters. Please refer to the NM70xx Operating Manual.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 4 Technical Specifications NM 7033 Two-Frequency Glidepath Cabinet 4.1 Signal Minimum Performance GP Transmitter Frequency range Frequency tolerance Output power (CSB + SBO) Course Output power (CSB) Clearance Harmonic radiation RF difference frequency (2-freq.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Difference frequency (2-freq.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 The ILS rack is wall mounted. The remote control and slave panels fit a standard 3U (132mm) high 19" subrack. 4.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 3$57 ,, ,167$//$7,21 5 Mechanical Installation The NM70XX cabinet is constructed for mounting on a wall. For easy operation, the keyboard/ display section should be in eye/shoulder height (140-160cm). The RF connectors may be mounted either on the cabinet top or the cabinet bottom. The free space required around the cabinet is approximately one by one meter, see Figure 5-1 1.0m 0.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 A A 11 Screw M8x25 Split lock washer M8 Flat washer M8 A A POWER POWER B Adjustment screw HBK597-1 Figure 5-2 NM 70XX mounted on wall with MK1343A. 5.2 Moving RF Connectors If desired the RF connectors may be moved from the cabinet top to the bottom or vice versa, as illustrated in Figure 5-3. The back section (F) of the main cabinet consists of a connector plate and a blind plate that are interchangeable.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 • Interchange the plates. • Remount the nuts, washers and flanges in the order shown. • Remount the ground connections (D) and (H). Make sure they are located on the hinge (G) side of the cabinet. A A A C B B B F C G NF CL CLR DS SBO CLR CSB CLR SBO CSB E HBK596-1 H D Figure 5-3 Moving the RF connectors to the cabinet bottom.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 6 Electrical Installation This paragraph describes the external electrical connections of the NM 7033 main cabinet. 6.1 Connection Overview The ILS main cabinet consists of three connector sites, illustrated in Figure 6-1 • The ILS RF signals to and from the antenna system are connected at the top of the main cabinet. These connectors may be moved to the bottom, see Mechanical Installation.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 coupled outside the cabinet. The cables used should have 4mm 2 intersection. 0V +27V Power Supply 0V +27V Battery HBK576-2 Figure 6-2 Power and backup battery connections. A DC powered modem or other external equipment designed for 22V - 27V DC can be connected to the fused terminal block marked Modem. Maximum current consumption should be 1 A. 6.3 RF Inputs The RF inputs are: • Course Line - CL. • Near Field Antenna - NF.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 These are connected as shown in Figure 6-3 (front view). HBK577-2 NF CL CLR DS Figure 6-3 RF input connections. 6.4 RF Outputs The RF outputs are sited at the cabinet top as illustrated in Figure 6-4. The connections are: All applications: • COU SBO - COUrse Tx SideBand Only. • COU CSB - COUrse Tx Carrier and SideBand. Two frequency applications: • CLR SBO - CLeaRance Tx SideBand Only. • CLR CSB - CLeaRance Tx Carrier and SideBand .
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 6.5 DC Loop (Localizer only) The DC loops are connected to the Connection Interface board CI1210A in the cabinet back section. Location and pin out are illustrated in Figure 6-5 • DL_REF* are the reference voltages from the main cabinet. • DL_DETECT* are the return voltages from the antennas. • GND is main cabinet ground. Suitable female connectors are Weidemüller BLZ-5.08/6 or equivalent. TEMP OUTDOOR AC LEVEL ANALOG CH.1 ANALOG CH.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 6.6 Remote Control The remote control is connected to the Connection Interface board CI1210A as illustrated in Figure 6-6. The connection of the remote control, remote slave panel and interlock switch is done at the remote control site and covered in chapter 6.13 - 6.16 • FSK_[P,N] is the modem line pair. • GND is main cabinet ground. For normal FSK modem operation the straps S9-11 on CI1210A should be mounted.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 6.7 PC and Modem PC terminals and modems are connected to the standard pin out RS232, 9 pins DSUB connectors on the Connection Interface board CI1210A as illustrated in Figure 6-7 Recommended connections are: • LOCAL - the PC located at the ILS main cabinet site. • REMOTE 1 - the PC located at the airport technical maintenance site. • REMOTE 2 - distant PC terminals connected through a modem. TEMP OUTDOOR AC LEVEL ANALOG CH.1 ANALOG CH.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 6.8 DME (localizer only) Distance Measurement Equipment DME is connected to the Connection Interface board CI1210A as illustrated in Figure 6-8 • ACT_DME[P,N] is the positive and negative terminal of the DME active signal from the DME, respectively. • IN_DME[P,N] is the positive and negative terminal of the morse code envelope signal from the DME, respectively.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 ,/6 '0( &, $ 6 . 6 6 ,'(17 )520 '0( 6 6 . 6 6 HBK770-1 6 3 Figure 6-9 DME master connections. If the DME shall be used as ident master, connect as shown in Figure 6-9. In the RMM program, CLR modulation and DME interface dialogue (see Operators Manual), set DME as master and DME active signal to OPEN.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 the RMM program, CLR modulation and DME interface dialogue (see Operating Manual), set LLZ as master and the DME active signal according to the DME’s manual. When the DME is active, the LLZ will send every forth ident word to the DME. When the DME is inactive the LLZ will be keying four out of four words.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Input impedance: 10kohms. • AC LEVEL - AC level measurement input. Intended for use with a battery eliminator (i.e. 220/9VAC) to monitor the mains voltage. Maximum voltage: 24Vpp. Input impedance: 10kohms. Suitable female connectors are Weidemüller BLZ-5.08/4 or equivalent. TEMP INDOOR TEMP OUTDOOR AC LEVEL ANALOG CH.1 ANALOG CH.2 ANALOG CH.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 6.11 Digital Inputs and Outputs Eight bidirectional digital channels (numbered 0-7) are located on the Connection Interface board CI1210A as illustrated in Figure 6-13 Logic levels: TTL. Input impedance: 560ohms. Suitable female connectors are Weidemüller BLZ-5.08/4 or equivalent. TEMP OUTDOOR AC LEVEL ANALOG CH.1 ANALOG CH.2 ANALOG CH.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 TEMP OUTDOOR AC LEVEL ANALOG CH.1 ANALOG CH.2 ANALOG CH.3 DIGITAL PORT A DIGITAL PORT B DIGITAL PORT C DIGITAL PORT D TO MB1203 TEMP INDOOR RS232 RS232 RS232 BATTERY WARNING REMOTE CONTROL DC-LOOP DC-LOOP DME 1 CI 1210A 4 LOCAL REMOTE 2 CH.1&2 REMOTE 1 CH.3&4 BATTERY WARNING RADIO LINK 1 - BATT.WARN. CHARGER 1 2 - GND 3 - BATT.WARN. CHARGER 2 HBK602-2 4 - GND Figure 6-14 Battery warning connections. 6.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 REMOTE CONTROL NORMARC P9 MB1346 1 - GND 1 - TXOFF 2 - FSK_P 2 - ALARM TXOFF 3 - FSK_N 3 - LINE_A ALARM 4 - GND 4 - LINE_B J2 P3 P9 J1 C B A 1 LINE A LINE B P10 5 RX A CI1210 on corresponding ILS or CI 1376 on corresponding Marker Beacon RX B 10 TX A TX B SLAVE RS485 15 P8 INTERLOCK ALT.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 1250$5& 1250$5& 0% 0% - 3 3 - 3 3 - - - 7;2)) 7;2)) $/$50 $/$50 & % $ & % & 5 $ 0 5 2 1 $ /,1( $ /,1( $ /,1( % /,1( % 3 3 5; $ % $ % 0 5; $ 5; % 5; % 7; $ 7; $ )URP 3 7; % 7; % 6/$9( 56 *1' 6/$9( 56 3 ,17(5/2&. $/7 /,1. ,17(5/2&. 6/$9( $/7 /,1. ',5(&7 9'& SRZHU 3 9 6/$9( VXSSO\ ',5(&7 $8; ,1 287 $8; ,1 287
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 GP HBK1100-1 LLZ NORMARC NORMARC MB1346 MB1346 J2 P3 P9 J2 P3 P9 J1 J1 TXOFF TXOFF ALARM ALARM C B A C B A 1 LINE A 1 LINE A LINE B LINE B 5 P10 5 P10 10 10 SLAVE RS485 SLAVE RS485 15 15 P8 INTERLOCK ALT.LINK P8 SLAVE INTERLOCK ALT.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 NORMARC MB1346 J2 P3 P9 J1 TXOFF ALARM C B A 1 LINE A To P1 on SF1344 LINE B P10 5 1:1 RX A RX B 10 TX A TX B SLAVE RS485 15 P8 INTERLOCK ALT.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 Note: When MB1346A is used with Remote Control Assembly RCA1240C or D and Interlock function is not used (connected), a jumper plug must be installed in P8 (or P2).
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 7 Tests and Adjustments 7.1 Configuration Settings Follow this procedure to set the configurations in the ILS according to the desired system configuration. 7.1.1 ILS Configuration Set the correct configuration for this ILS according to this table. The Station Control strap platform is located on Transmitter Control Assembly TCA 1218 (Figure 7-1).
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 1 2 3 4 5 6 7 8 9 HBK592-1 10 Figure 7-1 Station Control strap platform. 7.1.2 Remote Ports Access Level Configuration The allowed access levels on REMOTE ports 1 and 2 on the RMS can be configured by setting jumpers S1-S4 on the Transmitter Control Assembly TCA1218A (Figure 7-1) according to Table 7-1 . Jumper in means that access level is allowed. Jumper out means that access level is denied. PORT ACC. LEVEL 2 ACC.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 * S14 pin 2 connected to ground by plug on cable from P3 pin 20, refer to Figure 7-2 HBK1121-1 Figure 7-2 Cable connections for Remote Control via RS-232. 7.1.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 7.2 Technical note - Leased Line Setup for Remote Control (Westermo) This description applies to Westermo TD-22 GB modems used to connect the remote control to the ILS rack. 7.2.1 DIP switch settings SW1: 4 3 2 1 1 0 1 X* Leased line, switch off echo and result code. All AT commands ignored, including +++ * For the modem connected to the cabinet use: X = 0 (Answer mode).
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 pins connector on the modem. Normally a 9 to 25-pins converter and a 1:1 flat cable will be used to connect the modem to the cabinet. 7.2.4 Connecting modem to the RC The modem must be connected to J2 on MB1346 (remote control motherboard) using 25-pins D-sub connectors with a 1:1 cable. 7.2.5 Connecting the two modems Connect the two modems by using the standard Line connection marked TEL LINE on the modems. 7.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 Set the scope’s input mode to DC. The waveform observed should take a continuous form without limiting segments or deep notches or other discontinuities. (Each modulator develops it’s own waveform shape due to spreads in insertion phases). The dynamic maximum point should be adjusted to approximately -4 volt. The average operating point of the PHASE CORR signal can be shifted by means of adjusting potentiometer PH.OFFS.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 DEMODULATION SBO: NORMAL DEMODULATION SBO 10° LF PHASE ERROR Figure 7-4 LF phase SBO illustration. 7.3.3.1 One-frequency system Connect oscilloscope channel A to the BNC test connector labelled CSB located on LPA/GPA Course 1 (2). Set oscilloscope input mode to DC. Adjust 150 Hz COU phase adj R3 on Low Frequency generator LF1223A (Figure 7-9) observing oscilloscope channel A until the waveform equals left hand graph in Figure 7-2.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 Adjust 90 Hz CLR phase adj. R179 (LF1223A) observing oscilloscope channel B until the waveform equals left hand graph in Figure 7-2. A significant indication of correct LF phase is that the pair of the intermediate peaks are equal in amplitude. 7.3.4 RF Power Balance Adjustment Connect the oscilloscope to the BNC test connector labelled SBO located on the transmitter modules. NOTE: Set the scope’s input mode to DC.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 . DEMODULATION SBO: NORMAL DEMODULATION SBO: 5° RF PHASE ERROR Figure 7-6 RF phase SBO illustration The RF phase (90° start phase) can be adjusted by trimmer RF PHASE on the back of the LPA/GPA. Adjust until the minima points between the smallest peak waveform reach the baseline or a minimum. 7.3.6 SDM Calibration Connect the NM 3710 Field Test Set to the CSB BNC test connector in the Cabinet's Changeover section.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 DDM). 150Hz Dominance Preset Utilize the Field Test Set as in the previous test.Set the TEST DDM in position 150 Hz dominance from the RMM Program or the Local Display/Keyboard. Adjust the (150 Hz) test DDM setting until a wanted DDM value indicating (+) sign is obtained. (Typical value: 0.8%...1.0% DDM). Set the TEST DDM back to normal. 7.3.8 Ident Tone Modulation Depth 7.3.8.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 The top cover must be removed. Mount the Oscillator OS1221A/B on an extension board. In order to monitor the frequency, connect the Frequency Counter to the BNC test connector labelled CSB. (Make sure the transmitter under test is routed to Antenna). If necessary for stable counting switch off modulation tones. Adjust until frequency is less than 1 kHz from operating frequency. Trimmer C1 adjusts course and clearance frequencies simultaneously. 7.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 Set the potentiometer R338++ in middle position. See Figure 7-7. HBK776-2 Figure 7-7 Adjustment points on Monitor Frontend MF12xx. Adjust the jumper settings in P2++ and potentiometer R338++ until the voltage is 240mV at TP23++. HBK777-2 Figure 7-8 Alternative jumper settings of P2++ Turn off the equipment and remove the extender card. Set the Monitor Frontend MF12xx in its correct position. Turn on the transmitters.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Do this for all four monitor channels on all of the Monitor Frontend MF12xx modules in the system. This ensures fast response from the monitors. 7.5.4 SDM Adjustment Adjust the SDM potentiometer on the front of Monitor Frontend MF12xx until the monitors reads 40.0/80.0%SDM +/- 0.1%SDM. 7.5.5 DDM Adjustment Measure and note down the DDM values from the MCU and NF antenna with help of the Field Test Set.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 GP CAT1 CAT II CATIII CL DS NF CLR DDM 30uA 37uA 30uA 45uA SDM ± 5% ------ ------ ± 5% RF level ± 3dB* ------ ------ ± 1dB DDM 30uA 37uA 30uA 45uA SDM ± 5% ------ ------ ± 5% RF level ± 3dB* ------ ------ ± 1dB DDM 30uA 37uA 30uA 45uA SDM ± 5% ------ ------ ± 5% RF level ± 3dB* ------ ------ ± 1dB Table 7-10 Glidepath alarm limits * Only for single frequency ILS.
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NF SDM adj. 7(676 $1' $'-8670(176 CL SDM adj. HBK698-2 DS AGC time constant adj. DS RF level adj. DS SDM adj. CLR AGC time constant adj. CLR RF level adj. CLR SDM adj. CL AGC time constant adj. CL RF level adj. Mon.2 MF 1211A STBY MAINT IDENT BATT DISAGR PARAM Mon.stby.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 TEMP INDOOR TEMP OUTDOOR AC LEVEL ANALOG CH.1 ANALOG CH.2 ANALOG CH.3 DIGITAL PORT A DIGITAL PORT B DIGITAL PORT C DIGITAL PORT D TO MB1203 Battery protection level adj. RS232 RS232 RS232 BATTERY WARNING REMOTE CONTROL DC-LOOP DC-LOOP DME &, $ LOCAL REMOTE 2 REMOTE 1 CH.1&2 CH.3&4 HBK697-1 Figure 7-10 CI1210A Connection Interface adjustment point.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 5) SKDVH DGM 5) 3+$6( U H 9 R Q 6 7) , 5 ' 0 ( 5 ) H S \ 7 2 % 6 % 6 & '& RIIVHW DGM 5) EDODQFH DGM & 6 2 +] PRG DGM +] PRG DGM 3KDVH IHHGEDFN RIIVHW DGM '& 5) %$/ * +] * +] 3+ 2))6 +%. Figure 7-11 Power Amplifier Assembly adjustment points (rear view).
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 3$57 ,,, '(6&5,37,21 8 Functional Description 8.1 Introduction The NM 7000-series Instrument Landing System is a fourth generation system featuring extensive remote maintenance and monitoring features and systematic use of modern electronic components and processors.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 . Transmitter 1 Monitor 1 Monitor input signals Monitor Frontend MF1211/MF1219 Monitor MO1212 LF oscillator LF1223 Transmitter LPA/GPA RF oscillator OS1221 Remote Control External sensors Connection Interface CI1210 Comm.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 POWER AMPLIFIER ASSEMBLY COU-TX1 AMPLITUDE & RF PHASE FEEDBACK COAX CONTROL CHANGE OVER COU HPA AM-MOD. CSB FEEDBACK CONTROL HYBRID SBO 50 ohm AM-MOD. HPA MONITOR CSB COAX RELAY RF OSC. TX1 AMPLITUDE & RF PHASE FEEDBACK COUPLER OUTPUT CSB COURSE PHASER ATTENUATOR POWER AMPLIFIER ASSEMBLY COU-TX2 LF GEN. TX1 AMPLITUDE & RF PHASE FEEDBACK 50 ohm AM-MOD. HPA CSB FEEDBACK CONTROL OUTPUT SBO COURSE COAX RELAY HYBRID SBO AM-MOD.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 8.3 Monitor The monitor section’s main task is to generate alarms if the transmitters fail. The alarm signals are interpreted by the station control section which decides whether to change transmitter or to shut the ILS signals down. Warning information is treated by the RMS. The input signals to the monitor are RF signals, CL, DS, NF, CLR(2 freq. only), from the antenna system.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 and the current mode of operation, the station control decides if a changeover/shutdown should occur. The station control unit also receives user/state inputs from remote control (example: Interlock) and the RMM system (example: Warning lamp outputs). Configuration selections on the TC1216A board also affects the operation of the station control.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 ond after an alarm situation or interlock state has occurred. The remote control interface process serial data from/to the remote control. This unit also detects and reports faults in data transmission with remote control. The data from the remote control are sent to both SC and TRM. The local control displays the transmitter status of the ILS. It also provides a user interface, enabling the user to perform basic operations on the ILS. 8.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 8.6 Remote Monitoring System (RMS) 8.6.1 General Description The Remote Monitoring System consists of a CPU-board located inside the main cabinet, with several means of collecting data from both inside and outside the equipment. The RMS also constitutes the operator interface, offering up to three RS232 interfaces, and the Local Keyboard/Display.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 8.6.3 RMS Databus The main operation of the RMS parallel data bus is continuously to collect data from the Monitor MO 1212A. Additional functions are setting of monitor alarm limits and delays on the MO 1212A, setting of TX-parameters on LF-generator LF1223A, and reading of system status from the TX Control Assembly TCA 1218A/B. Writing of warning status to the TCA 1218A/B is also done via the RMS databus.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 LF 1223A TX1 LF 1223A TX1 OS 1221B TX1 OS 1221B TX2 GPA 1231A TX1 COU GPA 1232A TX1 CLR GPA 1231A TX2 COU GPA 1232A TX2 CLR IIC serial bus RMA 1215A CI 1210A ADC channels MF 1219A MON1 MF 1219A MON2 MF 1219A STB MON MO 1212A MON1 MO 1212A MON2 MO 1212A STB MON PS 1227A #1 PS 1227A #2 HBK571-1 Figure 8-8 The IIC serial bus and ADC channels. 8.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 .
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 9 Detailed description This chapter gives a detailed description of the assemblies and modules in the NM7033. Notations in the block diagrams: ~ [7:0] - 9.1 Active low signal. Signal bus numbering system. Here, an eight bits bus, numbered from seven down to zero. Main Cabinet The following paragraphs describe the electronics modules located in the main cabinet. 9.1.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 CL_LPFI are active lowpass filters that attenuates frequencies above the ILS baseband. DF_MIXER mixes the CL and CLR RF signals and extracts the difference frequency. The output signal is a TTL level pulse train. MAINTMON monitors the RF levels and the modulation depths, and reports to the RMS if the levels exceed the preset limits.
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RF INPUT STEP ATTENUATOR 1DYLD $YLDWLRQ $6 CL_FILT BANDPASS FILTER From CLR channel DF_MIXER ACTIVE MIXER DF RF LEVEL VERNIER CURRENTCONTROLLED ATTENUATOR AGC CL_RFAMP PRESET AGC LEVEL TPxx23 VOLTAGE REFERENCE LOWPASS FILTER CL_LEV RF LEVEL DC OUT CL_BASEB COMPARATOR AGC_TIME TP 1...4 CL_LPFI LOWPASS FILTER Part of MAINTMON MUX BASEBAND CL_IDENT IIC_SDA IIC_SCL AGC_VOLT RF LEVEL 1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 .
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 9.1.2 MO1212A Monitor General Description: The MO1212A module digital converts and processes NAV parameters, compares them with programmable limits and reports alarm situations to the Station Control on TCA1218A (chapter 9.1.3) and the RMS. Block Diagram: See Figure 9-2.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 DIFF FREQ COUNTER counts the pulse train that represents the frequency difference between the CL and CLR signals. It generates a 12 bits value which multiplied by 20 gives the true frequency difference. MUX selects between DF, one of sixteen channels from the ADC or one of the eight external channels in a roundabout manner to the FIFO. FIFO is a 7x17 bits first in first out queue with interface to the TMS320C31 DSP in the DSP_FILTER block.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Is the interface to the RMS. It controls interrupt when data is ready in the FIFO and generates addresses for EEPROM programming and status and control signals. PARITY CHECK: Checks incoming data from the EEPROM. One bit error is corrected, and only a parity warning is passed to the RMS. If two bits are erroneous, all output alarms are set, and a parity error is passed to the RMS. EEPROM: The EEPROM is used to store the alarm limits.
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1DYLD $YLDWLRQ $6 FROM MF1211A 3 CLR_* DF 4 DL_DETECT_* 2 2 DS_* NF_* CL_IDENT CL_RFLEVEL CL-BASEBAND VOLT. REF. LPF 4 CL_BB_DGR TEST_RF_OK TEST_RF_ERROR 2 TST_CH[1:0] MUX 2 MUX 4 12 DL_REF* AD 4.9152 MHz ANAFRONT VOLT. REF.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 9.1.3 TCA1218A Transmitter Control Assembly General Description: The TCA1218A transmitter control assembly consists of the transmitter control TC1216A and Local Control (front panel) LC1217A. Block Diagram: See figure Figure 9-3 and Figure 9-4. All blocks except Local Control are located on TC1216A. Description of selected signals: MON1 SC ALARM BUS : Station control alarm bus from monitor MO1212A no.1.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 Most of the functionality of STATION CONTROL is handled by three FPGAs NMP104A, NMP105A and NMP106A described in chapters 9.1.3.1 - 9.1.3.3. TERMINATOR interpret the alarm bus from the monitors MO1212A and generates alarm. This signal together with local controls (on LC1217A, remote controls (via CI1210A), RMS inputs and configuration setup (in EEPROM and jumper settings) determine the state of the terminator alarm (TRM_AL) output.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 duration of next 32 parameters, meaning that 32 parameter without alarm/error must be received in sequence before the alarm output is reset. MON.2 ALARM & ERROR DETECTION Same as for MON.1 ALARM & ERROR DETECTION, but for MON2 SC alarm bus.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 polled one by one. The event detect unit also has a built in integrity check. This function works when the ILS is in normal operational mode (automatic mode with transmitters on and no alarm). When the ON/OFF is pressed, a FORCE_AL signal is output. This signal turns off all transmitters (PA 1234A) without notifying the rest of the system.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Used by the state machine for delays/timeouts for state changes. DELAY Delays the coax relay position feedback in state change sequences. Ensures that the coax relay on COA1207A (Ch.9.1.6) will not change position while the transmitters are transmitting. PARITY CHECK This block check the parity of each byte read from the state machine content EPROM. Parity failure results in transmitter shutdown.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 write disable switchlock information from LOCAL CONTROL, access grant from REMOTE CONTROL IF and access requests from the RMS. EVENT DETECT The event detect unit checks for valid events (for example on/off-key, alarm, interlock etc.), and sends valid events to the terminator state check. Events not valid for the current mode of operation are ignored. TERMINATOR STATE CHECK This block acts upon events/states received from the EVENT DETECT block.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Block Description: STB LAMP FILTER This block provides the standby lamp information to be sent to remote control by the TX UART. TX UART Converts parallel data to 2-bytes serial messages. Protocol for the serial data SDOUT (sent I 1210A) is startbit, 8 databits, 1 stopbit, odd parity. RX UART Converts serial data SDIN received from remote control (via CI 1210A) to parallel data (2 bytes).
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 9.1.4 LF1223A Low Frequency Generator General Description: LF1223A provides the audio signals to be modulated onto the carrier signal in the transmitter (AC 1226A). The levels of the 90Hz, 150Hz, RF level and ident signals and the morse code of the ident signal are programmable from the RMS. Block Diagram: See chapter 9.1.6.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Block diagram: Frequency Divider Counter TST30 CLK CLR90 Ident Sequencer CLR150 COU90 Control COU150 IDNT_DIG IDNT_ON DME_IDNT_IN, DME_ACTIVE DME_IDNT_OUT Control Section IOS* EXT_SERVICE IOCSB RMS interface COAX_POS, LF_ADDR Address Decoder *_CS,DAC_A MUX Refresh Address Sequencer ADDR* Configuration Storage HBK563-1 IOD* Figure 9-5 NMP110A block diagram. Block description: FREQUENCY DIVIDER divides the system clock (3.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 Block Diagram: CHANNEL SELECT COU FREQUENCY ADJUST FREQ. TEST POINT PROGRAMABLE DIVIDER 64 MODULUS 2 DIVIDER MODULUS SELECT X-TAL RF OSCILLATOR PHASE DETECTOR LOWPASS FILTER LOCK DETECT VCO BANDPASS FILTER 12 dB OSC_COU_RF WINDOW COMP. LOCK DETECT TO IIC BUS SCHM.TR LATCH LOCK DETECT TO IIC BUS SCHM.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 COUNT = FRQ / 7.5011KHZ In order to set the frequency on the OS1221, the count must be rounded off to the nearest integer value and converted to a binary number. Insert shunts for binary zeros on the pin arrays P2 or P102 (COU/CLR) starting with the most significant bit on P2/102,A0 and the least significant bit on P2/102,N9. Be aware that most calculators discards leading zeros. Please find tables of jumper settings in Operating Manual Appendix B.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 The GPA1231A receives RF signals and LF signals from the OS1221B Oscillator (Ch. 9.1.5) and LF1223A low frequency generator (Ch. 9.1.4) respectively. The outputs from the GPA1231A are carrier sideband (CSB) signal and sideband only (SBO) signal. Detected samples of the CSB and SBO signals and the phase feedback signal are available on the BNC connectors on the front panel. Information about signals and status are interfaced with the RMS.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 See transmitter block diagram. Block Description: The PC1225B Phase Control receives the RF signal from the oscillator OS1221B. The RF signal is fed into the 90Hz branch and further through buffers and amplifiers. The 150Hz branch is inactive. The PA1234A Power Amplifier modulates the incoming RF signal from PC1225B with a CBS LF signal to obtain an AM-signal and amplifies it.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 able. In addition, the power balance between the two power amplifiers can be adjusted. The goal of these adjustments is to compensate various tolerances inside the GPA1231A. Adjusted correctly, any GPA1231A can be replaced by any other GPA1231A without any adjustments, and still be within specified limits. Any site or RF frequency dependent adjustments shall be made on the LF1223A module via the RMS system.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 For PHASE control, a 90 degree 3 dB hybrid is used as a phase discriminator. Such a device has the property that the resulting amplitude at its outputs depend upon the phase difference at its inputs. Here, the two sampled RF signals, which have equal amplitudes, are applied to the hybrid inputs. The two output signals from the hybrid are rectified, giving positive output voltages with some LF components. Normally, these two voltages will be equal.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 The 90 Hz and 150 Hz modulated RF input signals are of equal amplitude in phase quadrature, with the 90 Hz signal lagging. A 90 degree 3 dB hybrid is used as a combiner. When two RF signals of equal frequency and amplitude but with 90 degrees phase difference are applied to the two input ports of such a hybrid, the signals will add in phase at one output port but will be in reverse phase and cancel each other at the other port.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Physical Organisation CD 123xx *) C1 C2 C3 C4 J7 J1 J16 J2 J9 J14 J15 J3 AC 1226x J17 TP1 J8 PC 1xxxx J13 J12 J11 J6 J10 FD 1xxxx PA 123xx PA 123xx *) *) Not present in GP-CLR HBK695-2 Figure 9-7 Physical organisation of power amplifier assembly.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 90 Hz FEEDBACK 1 VOICE VOICE ON/OFF IDENT/ VOICE SELECTOR ANLG_ID ANALOGUE IDENT/VOICE 90 Hz COU PHASE ADJ. 90 Hz AGC LOWPASS FILTER LPF_90 UNREG 90 Hz AMPLIFIER 90 HZ COU AGC_AMP 2 DC (RF power) Vref LP FILTER DATA (7:0) LPF_1020 CONTROL IDENT KEYER IDENT + DC LEVEL COU BUFFER MOD DEPTH (RF POWER) DAC 90 Hz AC1226A 1 mm VOLT- MODU- AGE REF.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 1 RF PHASE FEEDBACK 2 RF PHASE REGULATOR AMPLIFIER MODULATOR DRIVER PHASE FEEDB. OFFSET ADJ. SYNTHESIZER LOWPASS FILTER CSB COU PA1234A 90° HYBRID RF PHASE REGULATOR AMPLIFIER OS1221B MODULATOR 90° HYBRID RF PHASE ADJ DRIVER PC1225B LOWPASS FILTER PA1234A SBO COU FD1236A CD1238A PHASE OUT 3 Tx ON/OFF RF PHASE FEEDBACK 4 5 6 RF PHASE REGULATOR AMPLIFIER PHASE FEEDB. OFFSET ADJ.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 9.1.8 COA1207C Change-Over Assembly General Description: The COA1207C consists of one Change-Over Relay Assembly CRA1228A for the Course signals and one Changeover Relay Unit CR1222A for the Clearance signals. The Change-Over Assembly for Course utilises two double-throw coaxial relays to connect the CSB and SBO output signals from either the main or standby transmitter (GPA1231A) to the antenna system or to a dummy load.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 PS1227A supplies the NM 70xx cabinet with +27V, ±15V, +8.5V and +5V, from a +27V input. Block Diagram: TRM_AL V27P A V27_CL90 I27_CL90 GND A V27_CL150 I27_CL150 A V27_CLR90 I27_CLR90 A V27_CLR150 I27_CLR150 DC V15P SYNC V15P_MEAS DC V15N DC V15N_MEAS DC V9P DC V9P_MEAS DC VDD DC VDD_MEAS HBK565-1 DC Figure 9-11 PS1227A Block Diagram Block description: The ±15V, +8.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 Block Diagram: RM1213A Watchdog Jumper RESET Memory RAM EPROM EEPROM Battery Interrupts Interrupt circutry CPU Real time clock CTRL port + Analog voltages IIC bus IIC controller Analog MUX Three serial channels. A D - RS232 drivers Double UART Analog MUX KD1214A CTRL port CTRL port Display Ident speaker Det. ident CTRL port Analog MUX Keypad CTRL port RMS bus HBK588-1 Figure 9-12 RMA1215A Block Diagram.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 The keypad consists of seven pushbuttons, directly connected to a parallel input port. DOUBLE UART The dual UART is a standard UART with a 16 byte bidirectional FIFO on both channels. RS232 DRIVERS The RS232 drivers are single supply RS232 drivers. They provide the interface between the UARTs and external PCs and modems.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 • 1 AC-level measurement input • 3 Differential Analog inputs • 8 Auxilliary Digital Inputs/Outputs Block Diagram: EAMX* ANLG3P/N ANLG2P/N ANLG1P/N VACP/N TINDOOR TOUTDOOR OverVoltage Protection AIN* MUX [RS232] [RS232] DL_* DL_* *DME* DME_* USER_DIG* P IIC* S FSK* Modem VPOW SD*,CD V27P A + - VBATT HBK532-1 A Figure 9-13 CI1210A Block diagram 9.1.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 Section # Module Monitor 1 1 MO 1212A 1 MF 1211A 1 External Frontend 1 1 MO 1212A 1 MF 1211A 1 External Frontend 2 1 MO 1212A 1 MF 1211A Station Control 1 TCA 1218A RMS 1 RMA 1215A Transmitter 1 1 LF 1223A 1 OS 1221 A/B 1 LF 1223A 1 OS 1221A/B 2 PS 1227A Monitor 2 Standby Monitor Transmitter 2 Power Supply Table 9-1 MB1203A plug in module connectors. 9.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 FRONT PANEL LEDS This block contains the front panel LEDs used to indicate the operational status of the ILS. KEYS AND SWITCHES This block contains the pushbuttons and switches used for operator input. 9.2.1.1 NMP128A Remote Control General Description: NMP128A is a FPGA proiding most of the remote control function. NMP128A is based on the Actel ACT1020 FPGA. For electrical specifications see the ACT1020 datasheet.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 MESSAGE DETECTOR Messages are accepted only if two equal messages are received in sequence. If so, the data output is updated and a new-message pulse is asserted. NEW MESSAGE TIMER Checks that an OK message and carrier detect is present. Missing message or no carrier detect for 2 seconds or more gives timeout.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 9.2.5 Slave Panel SF1344A and SP1394A Description: The SF1344A and SF1394A slave panel provides user interfaces to the ILS from the control tower or equipment room. The slave panels are connected to the RCA 1240C remote control assembly (Ch. 9.2.1) handling the interface with the ILS cabinet. SF 1344A and SF 1394A are identical apart from mechanical dimensions.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 ,17(5/2&. 0% 3 6:,7&+ 25 6) 3 5:<$ //= UXQZD\ $ *3 UXQZD\ $ 5:<% ,17(5/2&. *1' //= UXQZD\ % *3 UXQZD\ % +%.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 10 Parts Lists 10.1 Introduction This section contains a tabulation of electrical and certain mechanical assemblies and parts; i.e. chassis-mounted components, circuit cards assemblies, and modules of the equipment to the lowest replaceable unit (lru). 10.1.1 Explanation of Parts Lists Form • Symbol/Item No.: References the symbol og item no. for each replaceable electronic part in the equipment. • Fig. No.
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7(&+1,&$/ +$1'%22. 1250$5& ,167580(17 /$1',1* 6<67(0 10.2 Parts Lists Electronics Subsystems Group Symbol/ Item No. Fig. No. Description NM 7033 10-4 NM 7033 GP CABINET UOC Qty./ UOC 18884 B - 10-4 GCA 1249A GP 2-FRQ. CAB. ASS.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 10.3 Usable on code index USABLE ON CODE INDEX Usable On Code A B C D E 10.4 Navia Aviation Part No. Description NM 7011 LLZ CABINET 18881 NM 7033 GP CABINET 18884 LCA 1246A LLZ 2-FRQ. CAB. ASS. 18520 GCA 1249A GP 2-FRQ. CAB. ASS.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 WHAT’S YOUR OPINION? We here in Navia Aviation want to do our utmost to meet the expectations and needs of the most important people in the world to us - you, our customers. We will be in contact now and again to make sure you are still satisfied with our products and our service.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 Product Report Please forward to: Customer Service Dept. Received by: CS - No.: Customer / company: Name: Address: Phone: Fax number: E-mail: Site of installation: Contract number: Navia order No.
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1250$5& 7(&+1,&$/ +$1'%22. ,167580(17 /$1',1* 6<67(0 Customer Notification of Goods in Transit Customer’s Engineers to: Form to be faxed prior to shipment to NAVIA AVIATION AS, Customer Service Dep. (Fax No. . +47 23 18 02 13) Sender’s Name:................................................... Tel: ....................................................... Site: ..................................................... Fax: ...................................................... Return Adress:............
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