Page 1 Kongsberg EM 124 Multibeam Echo Sounder Maintenance Manual Image: Bathymetry of the Northern Portion of the Mariana Trench. Courtesy of Dr James V. Gardener, University of New Hampshire. 458499/A March 2020 © Kongsberg Maritime AS...
Page 2 Kongsberg Maritime disclaims any responsibility for damage or injury caused by improper installation, use or maintenance of the equipment. Disclaimer Kongsberg Maritime AS endeavours to ensure that all information in this document is correct and fairly stated, but does not accept liability for any errors or omissions. Support information If you require maintenance or repair, contact Kongsberg Maritime’s...
Page 3: Table Of Contents
Maintenance Manual Table of contents ABOUT THIS MANUAL .............. 9 KONGSBERG EM 124.............. 10 System description ......................11 Technical details.......................12 System diagram........................13 System units ........................14 Transducer description ...................14 Transmitter Unit description...................15 Receiver Unit description ..................15 Processing Unit description..................15 Hydrographic Work Station description..............16 Support information ......................17...
Page 4 Kongsberg EM 124 Processing Unit replacement ..................48 CPU board replacement..................51 VadaTech CP219 Ethernet switch replacement - Processing Unit ......54 CBMF board replacement ..................57 Fan unit replacement - Processing Unit ..............60 Processing Unit fuse replacement ................63 Transmitter Unit - Parts replacement ................66 Fan unit replacement - Transmitter Unit ..............67...
Page 5 Maintenance Manual Concurrent PP B12 CPU board overview ............110 Concurrent PP B12 CPU board connectors............111 Concurrent PP833 CPU board overview.............. 111 Concurrent PP833 CPU board connectors ............112 CP219 Ethernet switch....................113 Ethernet switch overview ..................113 Ethernet switch connectors................... 114 CBMF board ........................
Page 6 Synchronization overview, 2 Transmitter Units 1 Receiver Unit......197 Remote on/off overview, 2 Transmitter Units 1 Receiver Unit......198 Cable plan, Hydrographic Work Station ..............199 List of EM 124 cables ....................200 Clock synchronization (1PPS) ..................204 External synchronization ....................206 Cable drawings and specifications .................209 RS-232 serial line using three wires and RJ45 connector ........210...
Page 7 Remote control overview ..................221 Transmit Transducer cable ...................223 Receive Transducer cable..................224 EQUIPMENT HANDLING............225 Transporting Kongsberg Maritime equipment...............226 Lifting units and transportation boxes ................227 Inspection of units and transportation boxes after arrival..........229 Specifications for storage prior to installation or use.............230 Unpacking instructions ....................232...
Page 8 Kongsberg EM 124 458499/A...
Page 9: About This Manual
The purpose of this manual is to present the descriptions and drawings required to do basic maintenance tasks on the EM 124 Multibeam Echo Sounder. The equipment described in this manual includes the complete system with associated cabinets, but not those system units provided locally by the customer, installation shipyard or local dealer.
Page 10: Kongsberg Em 124
Kongsberg EM 124 Maintenance Manual Kongsberg EM 124 Topics System description, page 11 Technical details, page 12 System diagram, page 13 System units, page 14 Support information, page 17 458499/A...
Page 11: System Description
The EM 124 is designed to perform seabed mapping to full ocean depth with an unsurpassed resolution, coverage and accuracy. The system is cost effective, reliable, and easily operated. The design of the EM 124 is based on more than 50 years of hydrographic experience with echo sounders, sonars and underwater positioning for civilian and military use.
Page 12: Technical Details
In shallow waters due care is taken to the near field effects through nearfield focusing individually applied in the different sectors. EM 124 applies one focus range for each of the transmit sectors which are used for shallow water environment. Dynamic beam focusing is used for the reception beams.
Page 13: System Diagram
Kongsberg EM 124 System diagram The system diagram identifies the main components of a basic EM 124 system. Only the main connections between the units are shown. Detailed interface capabilities and power cables are not shown. Hydrographic Work Station Interfaces: •...
Page 14: System Units
A transducer is a device that converts one form of energy to another. In an echo sounder system the transducer converts between electric energy and sound. The EM 124 uses separate transducer arrays for transmitting and receiving sound pulses. Both transducer arrays have several modules which are assembled in mounting frames.
Page 15: Transmitter Unit Description
The Receiver Unit is normally located in a "sonar room" close to the transducer arrays. Processing Unit description The EM 124 Processing Unit is provided to process the signals to and from the Transmitter and Receiver Units. The EM 124 Processing Unit is an industrial computer using both COTS (commercial off-the-shelf) components and custom made components.
Page 16: Hydrographic Work Station Description
The unit can also be placed in the "survey room" or on the bridge. Hydrographic Work Station description The Hydrographic Work Station is the operator station for the EM 124. A dedicated maritime computer is provided with the EM 124 Multibeam Echo Sounder. It is set up with all necessary software.
Page 17: Support Information
Kongsberg EM 124 Support information Should you need technical support for your EM 124 you must contact a Kongsberg Maritime office. A list of all our offices is provided on our website. You can also contact our main support office in Norway.
Page 18: Troubleshooting
Kongsberg EM 124 Maintenance Manual Troubleshooting Topics Tools for troubleshooting, page 19 BIST (Built-In Self Test) dialog box, page 20 BIST (Built-In Self Test) theory, page 23 458499/A...
Page 19: Tools For Troubleshooting
However, key components that fail will in most cases be detected by the tools you have available. The most important tool is your own knowledge about the EM 124. Based on a list of the main components in the system, brief descriptions of what they do and how they work, including suggested certain symptoms, you may work out the possible solutions.
Page 20: Bist (Built-In Self Test) Dialog Box
Kongsberg EM 124 Maintenance Manual BIST (Built-In Self Test) dialog box dialog box provides several automatic tests to check the operation of the BIST echo sounder system. How to open • : Select on the menu. Select the Installation Parameters...
Page 21 Troubleshooting Details CPU Test This test presents the CPU type, the CPU clock frequency, the current and maximum temperatures for the CPU die and for the CPU board. In addition some key voltages are reported, and finally the network addresses for the board’s interfaces.
Page 22 Kongsberg EM 124 Maintenance Manual RX noise level This test measures the average isotropic spectral noise level for each receiver channel (in dB rel 1 μPa/Hz) for different frequency bands. The receiver directivity index, the transducer sensitivity and the filter bandwidth is used to convert to isotropic spectral noise level.
Page 23: Bist (Built-In Self Test) Theory
Troubleshooting BIST (Built-In Self Test) theory Topics BIST Introduction, page 24 CPU Test, page 25 CBMF test, page 26 RX unit test, page 27 TX unit test, page 28 CBMF-CPU link, page 29 RX-CBMF link, page 30 RX channels, page 31 TX channels, page 32 RX noise level, page 33 RX noise spectrum, page 34...
Page 24: Bist Introduction
Kongsberg EM 124 Maintenance Manual BIST Introduction The purpose of the offline BIST system is to detect errors and locate the failed module. The BIST tests are organized in a sequence, and tests module by module. The CPU executes the BISTs and sends the BIST reply to the operator station.
Page 25: Cpu Test
Troubleshooting CPU Test Checks the CPU board in the in the EM 124 Processing Unit. This test presents the CPU type, the CPU clock frequency, the current and maximum temperatures for the CPU die and for the CPU board. Checks all beamformer and signal processing boards (CBMF) in the EM 124 Processing Unit.
Page 26: Cbmf Test
Kongsberg EM 124 Maintenance Manual CBMF test Checks all beamformer and signal processing boards (CBMF) in the EM 124 Processing Unit. This test presents the CBMF board temperature, the internal power supply voltages. In addition software and firmware versions are displayed.
Page 27: Rx Unit Test
Troubleshooting RX unit test Checks the receiver electronics in the EM 124 Receiver Unit. This test presents the internal temperatures and voltages in the receiver electronics. In addition software and firmware versions are displayed. Dark green modules are to be tested. Light green modules have to function to be able to perform current test.
Page 28: Tx Unit Test
Kongsberg EM 124 Maintenance Manual TX unit test Checks the transmitter electronics in the EM 124 Transmitter Unit. This test presents the internal temperatures and voltages in the transmitter electronics. In addition software and firmware versions are displayed. Dark green modules are to be tested. Light green modules have to function to be able to perform current test.
Page 29: Cbmf-Cpu Link
Troubleshooting CBMF-CPU link Checks the parallel bus interface between the CBMF board and the CPU board. This test checks CBMF board(s), Ethernet connection and the parallel bus interface between the CBMF board(s) and the CPU circuit board. A large set of known data is transferred from the CPU unit on Ethernet via CBMF back to the CPU board.
Page 30: Rx-Cbmf Link
Kongsberg EM 124 Maintenance Manual RX-CBMF link This test checks the GBit interface between the RX unit and the CBMF boards. A large set of known data is transferred from RX unit via CBMF to the CPU board on parallel bus. The data received is checked by the CPU board.
Page 31: Rx Channels
Troubleshooting RX channels Checks the RX channels including transducers by injecting a test signal at receiver input. The Receiver Unit has a programmable signal generator board that is used to inject a test signal at the preamplifier inputs in the Receiver Unit. The BIST report displays the measured RX transducer impedance for all RX channels.
Page 32: Tx Channels
Kongsberg EM 124 Maintenance Manual TX channels Checks all TX channels including the transducers. This test checks the impedance of all TX elements. This is done by measuring the voltage and current used by all individual transmitters. Dark green modules are to be tested. Light green modules have to function to be able to perform current test.
Page 33: Rx Noise Level
Troubleshooting RX noise level Checks the isotropic spectral noise level. This test measures the average isotropic spectral noise level for each receiver channel (in dB rel 1 μPa/Hz) for different frequency bands. The receiver directivity index, the transducer sensitivity and the filter bandwidth is used to convert to isotropic spectral noise level.
Page 34: Rx Noise Spectrum
Kongsberg EM 124 Maintenance Manual RX noise spectrum Checks the isotropic spectral noise level. This test measures the isotropic spectral noise level for each receiver channel as done in the RX noise level test. The noise spectrum level is displayed for small frequency bands for groups of 32 channels.
Page 35: Software Date And Versions
Generates a status report for the EM 124 system. This test acquires information needed (serial numbers, software versions, BIST results etc.) for a status report. This report can be sent to the factory to update the EM 124 product database.
Page 36: Preventive Maintenance
Kongsberg EM 124 Maintenance Manual Preventive maintenance Topics Inspecting and cleaning the transducer face, page 37 Painting the transducer face, page 39 Inspecting and replacing sacrificial anodes, page 41 Approved anti-fouling paints, page 42 458499/A...
Page 37: Inspecting And Cleaning The Transducer Face
Context During normal use, the transducer is subjected to biological fouling. If this marine growth is excessive, it will reduce the performance of the EM 124. Whenever opportunity arise, typically when the vessel is dry-docked, the transducer face must be cleaned for shells and other marine growth.
Page 38 Apply anti-fouling paint as described in the dedicated procedure. Note Because some paint types may be aggressive to the polyurethane in the transducer, consult our list of approved paints. The list can also be found on Kongsberg Maritime (https://www.kongs- berg.com/maritime/). 458499/A...
Page 39: Painting The Transducer Face
Preventive maintenance Painting the transducer face Marine growth (biological fouling) on the transducer face reduces the EM 124 performance. We recommend that you paint the transducer face immediately after installation, and then again as often as required to maintain the protection.
Page 40 Kongsberg EM 124 Maintenance Manual Abrade the transducer surface using a sanding paper with 240 inch grit size. Do not exceed a surface roughness (R ) of 35 microns as this can influence the EM 124 performance. Remove all dust.
Page 41: Inspecting And Replacing Sacrificial Anodes
Preventive maintenance Inspecting and replacing sacrificial anodes Anodes are used on various units to prevent metals from corroding in salt water. Context Anodes are constructed of a metal alloy with an active voltage that is greater than the metal of the structure; thus, the anode corrodes before the material it is protecting. The three main alloys used are magnesium, aluminum, and zinc.
Page 42: Approved Anti-Fouling Paints
Kongsberg EM 124 Maintenance Manual Approved anti-fouling paints This is our list of approved antifouling paints for all transducer types. Always refer to the manufacturer's documentation and data sheets for a complete procedure and for relevant safety information. Important Do not paint the transducer with traditional hull plating paint. Use only the correct type of approved paint specified.
Page 43 Apply 150 µm dry film thickness. • Intersmooth 7465Si SPC – : Intergard 269 Primer Apply 40 µm dry film thickness. – : Intersmooth 7465Si SPC Paint Apply 100 µm dry film thickness. The list can also be found on Kongsberg Maritime (https://www.kongsberg.com/mar- itime/). 458499/A...
Page 44: Parts Replacement
Kongsberg EM 124 Maintenance Manual Parts replacement Topics Tools and equipment required for parts replacement, page 45 Processing Unit - Parts replacement, page 47 Transmitter Unit - Parts replacement, page 66 Receiver Unit - Parts replacement, page 83 458499/A...
Page 45: Tools And Equipment Required For Parts Replacement
Parts replacement Tools and equipment required for parts replacement In order to safely remove and replace printed circuit boards modules, generic and specific tools are required. You must be equipped with a standard set of tools. This tool set must comprise the normal tools for electronic and electromechanical tasks.
Page 46 Kongsberg EM 124 Maintenance Manual If, for any reason, it is necessary to move the circuit board from the conductive service mat, it must be placed in an approved antistatic transportation container (for example a static shielding bag) before transportation.
Page 47: Processing Unit - Parts Replacement
Parts replacement Processing Unit - Parts replacement Topics Processing Unit replacement, page 48 CPU board replacement, page 51 VadaTech CP219 Ethernet switch replacement - Processing Unit, page 54 CBMF board replacement, page 57 Fan unit replacement - Processing Unit, page 60 Processing Unit fuse replacement, page 63 458499/A...
Page 48: Processing Unit Replacement
Kongsberg EM 124 Maintenance Manual Processing Unit replacement If a Processing Unit fails to operate, it must be replaced with a new unit. All replacement tasks must be done according to the specified procedures, and you must follow the relevant safety instructions.
Page 49 Parts replacement Removing the Processing Unit One or two Processing Units are used in the EM 124 system. The complete Processing Unit can be supplied as a spare part. Prerequisites You must be equipped with a standard set of tools. This tool set must comprise the normal tools for mechanical tasks.
Page 50 When you connect the cables, make sure that they are all properly secured, and able to withstand the vibration and movements of the vessel. Further requirements Once the unit has been installed, follow the normal procedure to turn on the EM 124. 458499/A...
Page 51: Cpu Board Replacement
This is a generic photo. The CPU board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 52 Prerequisites This is a generic photo. The CPU board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel. You must be equipped with a standard set of tools. This tool set must comprise the normal tools for electromechanical tasks.
Page 53 Prerequisites This is a generic photo. The CPU board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel. A new circuit board must be available.
Page 54: Vadatech Cp219 Ethernet Switch Replacement - Processing Unit
All replacement tasks must be done according to the specified procedures, and you must follow the relevant safety instructions. The VadaTech CP219 board is used as an Ethernet switch in the EM 124 Processing Unit. Note These procedures will instruct you to handle electronic circuit boards and/or modules.
Page 55 Parts replacement Removing the VadaTech CP219 Ethernet switch If a VadaTech CP219 Ethernet switch fails to operate, it must be replaced with a new switch. All replacement tasks must be done according to the specified procedures, and you must follow the relevant safety instructions. Prerequisites You must be equipped with a standard set of tools.
Page 56 Kongsberg EM 124 Maintenance Manual Installing the VadaTech CP219 Ethernet switch If a VadaTech CP219 Ethernet switch fails to operate, it must be replaced with a new switch. All replacement tasks must be done according to the specified procedures, and you must follow the relevant safety instructions.
Page 57: Cbmf Board Replacement
Parts replacement CBMF board replacement If a CBMF board fails to operate, it must be replaced with a new circuit board. All replacement tasks must be done according to the specified procedures, and you must follow the relevant safety instructions. The Compact Beamformer (CBMF) board is used by the Processing Unit for beamforming and signal processing purposes.
Page 58 Prerequisites This is a generic photo. The CBMF board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel. You must be equipped with a standard set of tools. This tool set must comprise the normal tools for electromechanical tasks.
Page 59 Prerequisites This is a generic photo. The CBMF board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel. You must be equipped with a standard set of tools. This tool set must comprise the normal tools for electromechanical tasks.
Page 60: Fan Unit Replacement - Processing Unit
Kongsberg EM 124 Maintenance Manual Fan unit replacement - Processing Unit If a fan unit fails to operate, it must be replaced with a new module. All replacement tasks must be done according to the specified procedures, and you must follow the relevant safety instructions.
Page 61 Parts replacement Removing the fan unit If a fan unit fails to operate, it must be replaced with a new module. All replacement tasks must be done according to the specified procedures, and you must follow the relevant safety instructions. Prerequisites You must be equipped with a standard set of tools.
Page 62 Make sure that all AC mains power has been disconnected. Grab the handle and push the unit straight in. Tighten the screw. Connect AC mains power. Further requirements Once the unit has been installed, follow the normal procedure to turn on the EM 124. 458499/A...
Page 63: Processing Unit Fuse Replacement
Parts replacement Processing Unit fuse replacement The Processing Unit is protected with two ceramic body cartridge fuses on the power inlet. The fuses are replaced if blown. Note These procedures will instruct you to handle electronic circuit boards and/or modules. Before doing so, make sure that you are familiar with the applicable handling precautions.
Page 64 Kongsberg EM 124 Maintenance Manual Removing the fuse in the Processing Unit The Processing Unit is protected with two ceramic body cartridge fuses on the power inlet. The fuses are replaced if blown. Follow this procedure to remove the fuses.
Page 65 Push the fuse holder in. Connect the power cable on the rear side of the unit. Turn on the Processing Unit. Further requirements Once the unit has been installed, follow the normal procedure to turn on the EM 124. 458499/A...
Page 66: Transmitter Unit - Parts Replacement
Kongsberg EM 124 Maintenance Manual Transmitter Unit - Parts replacement Topics Fan unit replacement - Transmitter Unit, page 67 12V Power supply replacement - Transmitter Unit, page 72 HV Power supply replacement - Transmitter Unit, page 78 458499/A...
Page 67: Fan Unit Replacement - Transmitter Unit
Parts replacement Fan unit replacement - Transmitter Unit Each Transmitter Unit has one fan unit for cooling purposes. If the fan unit fails, it must be replaced with a new unit. Lid with mounting screws Mounting screws Fan unit The fan is located behind the lid on top of the Transmitter Unit.
Page 68 The fan is located behind the lid on top of the Transmitter Unit. Procedure Turn off the EM 124 system. Disconnect the power cable from the Transmitter Unit Loosen the mounting screws and remove the lid from the Transmitter Unit.
Page 69 Parts replacement Loosen the screws holding the fan unit. Grab the handles and pull the fan unit straight out. Place the unit on a clean and stable workbench. Further requirements To return the unit for repair or replacement, follow the relevant handling instructions. 458499/A...
Page 70 Kongsberg EM 124 Maintenance Manual Installing the fan unit If the fan unit fails, it must be replaced with a new unit. Follow this procedure to install the fan unit. Prerequisites The failed fan unit must have been removed. A new fan unit must be available.
Page 71 Tighten the screws holding the fan unit. Put the lid on the Transmitter Unit and tighten the screws. Connect AC mains power. Further requirements Once the unit has been installed, follow the normal procedure to turn on the EM 124. 458499/A...
Page 72: 12V Power Supply Replacement - Transmitter Unit
Kongsberg EM 124 Maintenance Manual 12V Power supply replacement - Transmitter Unit There is one 12V power supply in each Transmitter Unit. If the power supply module fails, it must be replaced with a new module. The power supplies are mounted behind the heat sinks on the sides of the Transmitter Unit.
Page 73 The 12V power is mounted on the right side when the Transmitter Unit is seen from the front. Procedure Turn off the EM 124 system. Disconnect the power cable from the Transmitter Unit Loosen the mounting screws and remove the heat sink from the unit.
Page 74 Kongsberg EM 124 Maintenance Manual Disconnect the (C) and the (D) cables from the AC power Control and monitoring power supply. VDC Out - Red DC Out Ground - Black AC power connector Control and monitoring signals The cables are connected with plugs or connectors.
Page 75 Parts replacement Installing the 12V power supply If the power supply module fails, it must be replaced with a new module. Follow this procedure to install the new power supply module. Prerequisites The failed power supply module must have been removed. A new power supply module must be available.
Page 76 Kongsberg EM 124 Maintenance Manual Mount the power supply unit on the heat sink. Note A thin layer of heat sink compound is required between the power supply and the heat sink. Usually a sufficient amount of heat sink compound is left from the old power supply assembly.
Page 77 Mount the heat sink on the unit and tighten the screws. Use Loctite 243 or similar to secure the screws. Connect AC mains power. Further requirements Once the power supply has been installed, follow the normal procedure to turn on the EM 124. 458499/A...
Page 78: Hv Power Supply Replacement - Transmitter Unit
Kongsberg EM 124 Maintenance Manual HV Power supply replacement - Transmitter Unit There is one HV power supply in each Transmitter Unit. If the power supply module fails, it must be replaced with a new module. The power supplies are mounted behind the heat sinks on the sides of the Transmitter Unit.
Page 79 The HV power is mounted on the left side when the Transmitter Unit is seen from the front. Procedure Turn off the EM 124 system. Disconnect the power cable from the Transmitter Unit Loosen the mounting screws and remove the heat sink from the unit.
Page 80 Kongsberg EM 124 Maintenance Manual Carefully turn the heat sink around. Disconnect the (C) and the (D) cables from the AC power Control and monitoring power supply. VDC Out - Orange DC Out Ground - Blue AC power connector Control and monitoring signals Disconnect the (A/B) cable from the Transmitter Unit backplane.
Page 81 Parts replacement Installing the HV power supply If the power supply module fails, it must be replaced with a new module. Follow this procedure to install the new power supply module. Prerequisites The failed power supply module must have been removed. A new power supply module must be available.
Page 82 Kongsberg EM 124 Maintenance Manual Connect the (A/B) cable from the power supply to the Transmitter Unit VDC Out backplane. VDC Out - Orange DC Out Ground - Blue AC power connector Control and monitoring signals Connect the (C) and the...
Page 83: Receiver Unit - Parts Replacement
Parts replacement Receiver Unit - Parts replacement Topics Receiver Unit replacement, page 84 Power supply replacement - Receiver Unit, page 89 458499/A...
Page 84: Receiver Unit Replacement
Kongsberg EM 124 Maintenance Manual Receiver Unit replacement If a Receiver Unit fails to operate, it must be replaced with a new unit. The complete receiver Unit can be supplied as a spare part. All replacement tasks must be done according to the specified procedures, and you must follow the relevant safety instructions.
Page 85 Context If a Receiver Unit fails to operate, it must be replaced with a new unit. One or two Processing Units are used in the EM 124 system. The complete receiver Unit can be supplied as a spare part. The Receiver Unit is a small wall-mounted steel cabinet with integrated shock and vibration absorbers, designed for bulkhead mounting.
Page 86 Kongsberg EM 124 Maintenance Manual Open the cable support bracket. Disconnect the cables. Loosen the unit by removing the mounting bolts. Place the unit on a clean and stable workbench. Remove the cable support bracket. The cable support bracket has to be moved to the spare unit. The Receiver Unit delivered as spare part does not include the cable support bracket.
Page 87 The Receiver Unit is delivered as a complete cabinet with shock absorbers. The Receiver Unit delivered as spare part does not include the cable support bracket. Refer to the relevant cable plans, cable lists and/or interconnection drawings for the EM 124. Procedure Mount the cable support bracket on the Receiver Unit.
Page 88 Make sure the cables are all properly secured, and able to withstand the vibration and movements of the vessel. Install the protection lid. Connect AC mains power. Further requirements Once the unit has been installed, follow the normal procedure to turn on the EM 124. 458499/A...
Page 89: Power Supply Replacement - Receiver Unit
Parts replacement Power supply replacement - Receiver Unit There is one power supply unit in each Receiver Unit. If the power supply module fails, it must be replaced with a new module. All replacement tasks must be done according to the specified procedures, and you must follow the relevant safety instructions.
Page 90 The power supply module is mounted on a bracket. Procedure Turn off the EM 124 system. Disconnect the power cable from the Receiver Unit Loosen the mounting screws and remove the lid from the unit. Identify the power supply module.
Page 91 Parts replacement Disconnect the cables from the power supply unit. All cables are connected to the unit with plugs or connectors. Loosen the mounting screws and remove the bracket with the power supply unit. The power supply module is mounted on a bracket. Loosen the screws and remove the power supply unit from the mounting bracket.
Page 92 Kongsberg EM 124 Maintenance Manual Installing the power supply If the power supply module fails, it must be replaced with a new module. Follow this procedure to install the new power supply module. Prerequisites The failed power supply module must have been removed.
Page 93 Parts replacement Mount the bracket with the power supply unit. Connect the cables. All cables are connected to the unit with plugs or connectors. AC power connector DC output module 1 + Red DC output module 1 - Black DC output module 2 + White DC output module 2 - Black Control and monitoring signals 458499/A...
Page 94 Kongsberg EM 124 Maintenance Manual Put the lid on the unit and tighten the screws. Connect AC mains power. Further requirements Once the power supply has been installed, follow the normal procedure to turn on the EM 124. 458499/A...
Page 95: Spare Parts And Consumables
Spare parts and consumables Spare parts and consumables Topics Ordering spare parts, page 96 Processing Unit - List of spare parts, page 97 Transmitter Unit - List of spare parts, page 100 Receiver Unit - List of spare parts, page 103 458499/A...
Page 96: Ordering Spare Parts
Kongsberg EM 124 Maintenance Manual Ordering spare parts To make the order process as short and efficient as possible, you must provide accurate information about the product, the part you need, and yourself. The following information must be provided with your order: •...
Page 97: Processing Unit - List Of Spare Parts
There are two Compact Beamformer (CBMF) boards in the Processing Unit. This is a generic photo. The CBMF board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 98: Cpu Board Spare Part 457015
Concurrent Technologies (http://www.gocct.com) Related topics CPU board replacement, page 51 Power supply spare part 373897 One power supply unit is used in the EM 124 Processing Unit for supply of 5, 24 and 48 VDC. • Power supply, Part name: Excesys XLB •...
Page 99: Fan Unit Spare Part 385387
Spare parts and consumables Fan unit spare part 385387 Two fan units are used in the EM 124 Processing Unit for side to side cooling. • Fan unit Part name: • 385387 Part number: • Number in use: • Recommended number in spare: •...
Page 100: Transmitter Unit - List Of Spare Parts
Kongsberg EM 124 Maintenance Manual Transmitter Unit - List of spare parts Topics LPTX36 Transmitter board spare part 446679, page 100 TX RIO board spare part 426321, page 100 Ethernet switch spare part 338124, page 101 TXU Fan unit spare part 430443, page 101...
Page 101: Ethernet Switch Spare Part 338124
Spare parts and consumables Ethernet switch spare part 338124 There are up to three VadaTech CP218 Ethernet switches in each Transmitter Unit. • VadaTech CP218 Ethernet switch board Part name: • 338124 Part number: • Number in use: • Recommended number in spare: •...
Page 102: Txu Hv Power Supply Spare Part 437225
Kongsberg EM 124 Maintenance Manual TXU HV Power supply spare part 437225 There is one HV power supply in each Transmitter Unit. • Power supply Excesys UX6QQ Part name: • 437225 Part number: • Number in use: • Recommended number in spare: •...
Page 103: Receiver Unit - List Of Spare Parts
• Number in use: • Recommended number in spare: • Kongsberg Maritime (https://www.kongsberg.com/maritime/) True manufacturer: Related topics Receiver Unit replacement, page 84 Receiver Unit 2 degrees - spare part 424634 The complete receiver Unit can be supplied as a spare part. The number of Receiver Units used will depend on the system configuration.
Page 104: Receiver Unit 4 Degrees - Spare Part 424635
Kongsberg EM 124 Maintenance Manual Related topics Receiver Unit replacement, page 84 Receiver Unit 4 degrees - spare part 424635 The complete receiver Unit can be supplied as a spare part. The number of Receiver Units used will depend on the system configuration.
Page 105: Processing Unit
Processing Unit Processing Unit Topics Processing Unit description, page 106 Processing Unit familiarization, page 106 Processing Unit front panel description, page 107 Processing Unit rear panel description, page 108 Processing Unit circuit boards and modules, page 109 CPU board, page 110 CP219 Ethernet switch, page 113 CBMF board, page 115 458499/A...
Page 106: Processing Unit Description
Kongsberg EM 124 Maintenance Manual Processing Unit description The EM 124 Processing Unit is provided to process the signals to and from the Transmitter and Receiver Units. The EM 124 Processing Unit is an industrial computer using both COTS (commercial off-the-shelf) components and custom made components.
Page 107: Processing Unit Front Panel Description
Processing Unit Processing Unit front panel description The front panel of the Processing Unit holds a mains power switch and an information display. Information display Power On/Off 458499/A...
Page 108: Processing Unit Rear Panel Description
Fuse for the AC mains supply CPU board CBMF board There are one or two Compact Beamformer (CBMF) boards in the Processing Unit. The number of CBMF boards depend upon the configuration of the EM 124 system. CP219 Ethernet switch Air filter unit 458499/A...
Page 109: Processing Unit Circuit Boards And Modules
The Processing Unit has two fan units for cooling purposes. • Power supply One power supply unit is used in the EM 124 Processing Unit for supply of 5, 24 and 48 VDC. The Excelsys XLB power supply is located inside the Processing Unit, and is not visible from the outside.
Page 110: Cpu Board
Concurrent PP833 CPU board connectors, page 112 Concurrent PP B12 CPU board overview Concurrent PP B12 is one version of CPU board used in the EM 124 Processing Unit. The Concurrent PP B12 is a PC-compatible high functionality Compact PCI (cPCI) board used by the EM 124 Processing Unit as the Central Processing Unit (CPU).
Page 111: Concurrent Pp B12 Cpu Board Connectors
Station) Concurrent PP833 CPU board overview Concurrent PP833 is one version of CPU board used in the EM 124 Processing Unit. The Concurrent PP833 is a PC-compatible high functionality Compact PCI (cPCI) board used by the EM 124 Processing Unit as the Central Processing Unit (CPU).
Page 112: Concurrent Pp833 Cpu Board Connectors
Concurrent PP833 CPU board connectors The Concurrent PP833 CPU board holds two large connectors for the backplane, as well as several front mounted connectors. Not all of these connectors are used in the EM 124. PMC/XMC1 Console - for Kongsberg Maritime use only COM1 to COM4 - Four serial ports with RJ45 connectors.
Page 113: Cp219 Ethernet Switch
Ethernet switch connectors, page 114 Ethernet switch overview The VadaTech CP219 board is used as an Ethernet switch in the EM 124 Processing Unit. This is a generic photo. The Vadatech CP219 board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 114: Ethernet Switch Connectors
Kongsberg EM 124 Maintenance Manual Ethernet switch connectors The VadaTech CP219 Ethernet switch holds 10 front mounted connectors, as well as one large connector for the backplane. This is a generic photo. The Vadatech CP219 board used by the EM 124 may look slightly...
Page 115: Cbmf Board
The Compact Beamformer (CBMF) board is used by the Processing Unit for beamforming and signal processing purposes. This is a generic photo. The CBMF board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 116: Cbmf Board Configuration
When a board is provided as a spare part, it is readily configured. This is a generic photo. The CBMF board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 117: Cbmf Board Connectors
The CBMF board holds a large connector for the backplane, as well as several front mounted connectors. This is a generic photo. The CBMF board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 118: Transmitter Unit
Kongsberg EM 124 Maintenance Manual Transmitter Unit Topics Transmitter Unit familiarization, page 118 Transmitter Unit bottom panel description, page 120 Transmitter Unit top panel description, page 122 Transmitter Unit power supplies, page 124 RIO-P board - dip switch setting, page 125 Transmitter Unit familiarization The Transmitter Unit holds several circuit boards and two power supplies.
Page 119 Transmitter Unit Bottom view Protection cover and cable clamp not shown Front view Top view Lid not shown 458499/A...
Page 120: Transmitter Unit Bottom Panel Description
Kongsberg EM 124 Maintenance Manual Transmitter Unit bottom panel description All external cables are connected at the bottom of the Transmitter Unit. RIO-P board TX RIO board 1 TX RIO board 12 AC power connector Ground connector Ethernet connector Ethernet connector...
Page 121 There are up to 12 TX RIO boards in each Transmitter Unit. The transducer cables connect to the TX RIO boards. The number of TX RIO boards depends on the configuration of the EM 124 system. • 0.5 degrees TX array: 24 (2x12) •...
Page 122: Transmitter Unit Top Panel Description
Kongsberg EM 124 Maintenance Manual Transmitter Unit top panel description There are only internal connections at the top of the Transmitter Unit. Ethernet switch 1 Ethernet switch 2 Ethernet switch 3 LPTX36 board 1 LPTX36 board 24 Fan unit 458499/A...
Page 123 There are up to 24 LPTX36 Transmitter boards in each Transmitter Unit. Each LPTX36 board is connected to the Ethernet switch in the Transmitter Unit. The number of LPTX36 boards depends on the configuration of the EM 124 system. • 0.5 degrees TX array: 48 (2x24) •...
Page 124: Transmitter Unit Power Supplies
Transmitter Unit is seen from the front. The power supply modules provide the operating voltages to the circuit boards in the EM 124 Transmitter Unit. These include the low voltages for the electronic circuitry, and the high voltage required to create the transmit pulses.
Page 125: Rio-P Board - Dip Switch Setting
Transmitter Unit RIO-P board - dip switch setting The dip switch setting on the RIO–P board has to be correct. Transmitter Unit 1 (MASTER): All switches must be set to ON. The position of the dip switches are shown with the LED lights on the front of the RIO-P board when the board is installed and the Transmitter Unit is powered up.
Page 126: Receiver Unit
Kongsberg EM 124 Maintenance Manual Receiver Unit Topics Receiver Unit familiarization, page 127 Receiver Unit bottom panel description, page 128 Receiver Unit - dip switch setting, page 129 458499/A...
Page 127: Receiver Unit Familiarization
Receiver Unit Receiver Unit familiarization The EM 124 Receiver Unit has all receive electronics, like control processor, amplifiers, Analog-to-Digital Converters, power supply and Ethernet interface. Cable connection, behind protection lid Lid for access to circuit boards and power supply The Receiver Unit is a small...
Page 128: Receiver Unit Bottom Panel Description
Kongsberg EM 124 Maintenance Manual Receiver Unit bottom panel description The connectors of the Receiver Unit are accessed from the bottom. The transducer cables connect at the bottom of the Receiver Unit. The number of cables depends on the chosen system configuration.
Page 129: Receiver Unit - Dip Switch Setting
Receiver Unit Receiver Unit - dip switch setting The dip switch setting in the Receiver Unit has to be correct. The software in the Processing Unit must know the identification of the Receiver Units. A switch on the processing board inside the Receiver Unit is used for this. Receiver Unit 1 (MASTER): all switches must be set to OFF.
Page 130: Hydrographic Work Station
Kongsberg EM 124 Maintenance Manual Hydrographic Work Station Topics Hydrographic Work Station description, page 131 Hydrographic Work Station front panel description, page 131 Hydrographic Work Station rear panel description, page 132 458499/A...
Page 131: Hydrographic Work Station Description
Hydrographic Work Station Hydrographic Work Station description The Hydrographic Work Station is the operator station for the EM 124. A dedicated maritime computer is provided with the EM 124 Multibeam Echo Sounder. It is set up with all necessary software.
Page 132: Hydrographic Work Station Rear Panel Description
Kongsberg EM 124 Maintenance Manual Hydrographic Work Station rear panel description The rear panel of the Hydrographic Work Station holds all the connectors used by the computer to communicate with external devices. It also holds the power input socket and a mains power switch.
Page 133: Drawing File
Drawing file Drawing file Topics 213673 TX module outline dimensions, page 135 213217 RX module outline dimensions, page 136 372053 TX mounting frame - 0.5 degrees, page 137 213433 TX mounting frame - 1 degree, page 138 213370A TX mounting frame - 2 degrees, page 139 213370B TX mounting frame - 2 degrees, page 140 213744 RX mounting frame - 1 degree, page 141 213389 RX mounting frame - 2 degrees, page 142...
Page 134 Kongsberg EM 124 Maintenance Manual 365290 KM 1000 mounting kit dimensions, page 158 409067 Fibre cable kit, page 159 370275 Remote Control Unit (K-REM) dimensions, page 160 373962 Remote Control Unit (K-REM) wiring diagram, page 161 458499/A...
Page 135: 213673 Tx Module Outline Dimensions
Drawing file 213673 TX module outline dimensions 458499/A...
Page 136: 213217 Rx Module Outline Dimensions
Kongsberg EM 124 Maintenance Manual 213217 RX module outline dimensions 458499/A...
Page 137: 372053 Tx Mounting Frame - 0.5 Degrees
Drawing file 372053 TX mounting frame - 0.5 degrees 458499/A...
Page 138: 213433 Tx Mounting Frame - 1 Degree
Kongsberg EM 124 Maintenance Manual 213433 TX mounting frame - 1 degree 458499/A...
Page 139: 213370A Tx Mounting Frame - 2 Degrees
Drawing file 213370A TX mounting frame - 2 degrees 458499/A...
Page 140: 213370B Tx Mounting Frame - 2 Degrees
Kongsberg EM 124 Maintenance Manual 213370B TX mounting frame - 2 degrees 458499/A...
Page 141: 213744 Rx Mounting Frame - 1 Degree
Drawing file 213744 RX mounting frame - 1 degree 458499/A...
Page 142: 213389 Rx Mounting Frame - 2 Degrees
Kongsberg EM 124 Maintenance Manual 213389 RX mounting frame - 2 degrees 458499/A...
Page 143: 213803 Rx Mounting Frame - 4 Degrees
Drawing file 213803 RX mounting frame - 4 degrees 458499/A...
Page 144: 372981 Tx Casing With Frame - 0.5 Degrees
Kongsberg EM 124 Maintenance Manual 372981 TX Casing with frame - 0.5 degrees 458499/A...
Page 145: 213754 Tx Casing With Frame - 1 Degree
Drawing file 213754 TX Casing with frame - 1 degree 458499/A...
Page 146: 213755 Tx Casing With Frame - 2 Degrees
Kongsberg EM 124 Maintenance Manual 213755 TX Casing with frame - 2 degrees 458499/A...
Page 147: 213749 Rx Casing With Frame - 1 Degree
Drawing file 213749 RX Casing with frame - 1 degree 458499/A...
Page 148: 213756 Rx Casing With Frame - 2 Degrees
Kongsberg EM 124 Maintenance Manual 213756 RX Casing with frame - 2 degrees 458499/A...
Page 149: 213810 Rx Casing With Frame - 4 Degrees
Drawing file 213810 RX Casing with frame - 4 degrees 458499/A...
Page 150: 365207 Baffle Plate 1 Dimensions
Kongsberg EM 124 Maintenance Manual 365207 Baffle plate 1 dimensions 458499/A...
Page 151: 365208 Baffle Plate 2 Dimensions
Drawing file 365208 Baffle plate 2 dimensions 458499/A...
Page 152: 365209 Baffle Plate 3 Dimensions
Kongsberg EM 124 Maintenance Manual 365209 Baffle plate 3 dimensions 458499/A...
Page 153: 426226 Transmitter Unit Dimensions
Drawing file 426226 Transmitter Unit dimensions 458499/A...
Page 154: 435444 Receiver Unit Dimensions
Kongsberg EM 124 Maintenance Manual 435444 Receiver Unit dimensions 458499/A...
Page 155: 385422 Processing Unit Dimensions
Drawing file 385422 Processing Unit dimensions 458499/A...
Page 156: 378828 Hws Dimensions
Kongsberg EM 124 Maintenance Manual 378828 HWS dimensions 458499/A...
Page 157: 445723 Rack Installation Kit Dimensions
Drawing file 445723 Rack installation kit dimensions 458499/A...
Page 158: 365290 Km 1000 Mounting Kit Dimensions
Kongsberg EM 124 Maintenance Manual 365290 KM 1000 mounting kit dimensions 458499/A...
Page 159: 409067 Fibre Cable Kit
Drawing file 409067 Fibre cable kit 458499/A...
Page 160: 370275 Remote Control Unit (K-Rem) Dimensions
Kongsberg EM 124 Maintenance Manual 370275 Remote Control Unit (K-REM) dimensions 458499/A...
Page 161: 373962 Remote Control Unit (K-Rem) Wiring Diagram
Drawing file 373962 Remote Control Unit (K-REM) wiring diagram 458499/A...
Page 162: Technical Specifications
Kongsberg EM 124 Maintenance Manual Technical specifications Topics Performance specifications, page 163 Interface specifications, page 165 Weight and outline dimensions, page 172 Power requirements, page 175 Environmental requirements, page 177 Dimensional survey accuracy requirements, page 180 Alignment specifications, page 182...
Page 163: Performance Specifications
Technical specifications Performance specifications These performance specifications summarize the main functional and operational characteristics of the EM 124 system. • Maximum ping rate: More than 5 Hz • Number of swaths per ping: 2 • Model Transmit Receive Transmit Number of...
Page 164 140°. The intensity level may be lowered by 10 or 20 dB by the operator. The EM 124 may be set in a mode to begin pinging with a flexible soft-start as a possible means of inducing marine mammals to leave the area of high intensity sound.
Page 165: Interface Specifications
Technical specifications Interface specifications Topics Datagram formats, page 166 Interface specifications - Processing Unit - KMall format, page 167 External sensors requirements, page 170 Interface specifications - Hydrographic Work Station - KMall format, page 171 458499/A...
Page 166: Datagram Formats
Kongsberg EM 124 Maintenance Manual Datagram formats Different EM multibeams will use and log data on different formats. The KMall format is the successor of the all format, and uses the file extension kmall. Water column data can be logged in a separate file with extension kmwcd. The format is a generic format with high resolution data and the structure of the datagram is designed to make updates easier.
Page 167: Interface Specifications - Processing Unit - Kmall Format
Technical specifications Interface specifications - Processing Unit - KMall format The EM 124 system will interface with peripheral systems and sensors using standard and/or proprietary datagram formats. This is a description of available datagram formats for EM multibeams using KMall format.
Page 168 Sound speed probe can be interfaced directly to the Processing Unit and configured in K-Controller or interfaced to the Hydrograpic Work Station and configured in SIS 5. The EM 124 supports the following datagram format from a sound speed probe. •...
Page 169 Technical specifications Output datagram formats The KMall format is described in it’s own document. See the Product support A to Z page. 458499/A...
Page 170: External Sensors Requirements
Heave (real-time output) Doppler shifts All new generation of multibeam echo sounders from Kongsberg Maritime have an extended range performance by use of a frequency modulated transmitter pulse (FM), also called chirp pulse. In the FM mode, the Doppler shift made by the movements of the survey vessel relative to the bottom, causes a range error.
Page 171: Interface Specifications - Hydrographic Work Station - Kmall Format
Interface specifications - Hydrographic Work Station - KMall format The EM 124 system will interface with peripheral systems and sensors using standard and/or proprietary datagram formats. This is a description of available datagram formats for EM multibeams using KMall format.
Page 172: Weight And Outline Dimensions
Kongsberg EM 124 Maintenance Manual Weight and outline dimensions These weights and outline dimension characteristics summarize the physical properties of the EM 124 system. Transmit transducer module • Outline dimensions – : 179 mm / 131.4 mm Length – : 760 mm Width –...
Page 173 : 420 mm Depth • : 21 kg Weight Hydrographic Work Station The standard commercial computer has been configured to fit the operational requirements of the EM 124. • : Hewlett Packard MP5810 Make and model • Outline dimensions –...
Page 174 Kongsberg EM 124 Maintenance Manual Display • : Isic MD24 (DuraMON WS 24) Make and model • http://www.isic-systems.com Manufacturer’s website • Outline dimensions – : 68 mm Depth – : 601 mm Width – : 408 mm Height • : 10 kg (Approximately)
Page 175: Power Requirements
Technical specifications Power requirements These power characteristics summarize the supply power requirements for the EM 124 system. Transmitter Unit • : 230 VAC, 47 to 63 Hz Voltage requirement • : 15 % Maximum voltage deviation • Maximum power consumption –...
Page 176 Kongsberg EM 124 Maintenance Manual Display • : Isic MD22/24/27 (DuraMON WS 22/24/27) Make and model • http://www.isic-systems.com Manufacturer’s website • : Standard: 90–264 VAC, Optional: 18–36 VDC, 50–60 Hz Input voltage • : Max. 40 W Power consumption 458499/A...
Page 177: Environmental Requirements
Technical specifications Environmental requirements These specifications summarize the temperature requirements and other environmental standards for the EM 124 system. Transducers • : -5 to +50 °C Operating temperature • : -30 to +70 °C Storage temperature • : 60 m...
Page 178 Kongsberg EM 124 Maintenance Manual • : –30 to 70 °C Storage temperature • : 5 to 93 % relative non-condensing Relative humidity • : IP23 Ingress protection (IP) rating • Vibration – : 5 to 100 Hz Frequency range –...
Page 179 Technical specifications • Certificates – IEC 60945 – IACS E10 458499/A...
Page 180: Dimensional Survey Accuracy Requirements
Kongsberg EM 124 Maintenance Manual Dimensional survey accuracy requirements Minimum accuracy requirements are defined for the dimensional survey. Note The following accuracy requirements are minimum requirements. Higher accuracy will provide better results and should therefore always be aimed at. Transducer •...
Page 181 Technical specifications Heading sensor Note These spesifications are minimum requirements. Consult the installation manual for each sensor for how it is to be aligned and how accurately the location needs to be measured. • : ± 0.10 degrees Heading Global positioning system (GPS) (Antenna) Note These spesifications are minimum requirements.
Page 182: Alignment Specifications
Kongsberg EM 124 Maintenance Manual Alignment specifications These alignment specifications summarize the alignment requirements of the EM 124 system. Note The following accuracy requirements are minimum requirements. Higher accuracy will provide better results and should therefore always be aimed at.
Page 183: Cable Layout And Interconnections
Cable layout and interconnections Cable layout and interconnections Correct cabling is essential for EM 124 operation. Cabling principles, cable plans and drawings, as well as relevant procedures, are provided. Topics Cable plans, page 184 List of EM 124 cables, page 200...
Page 184: Cable Plans
Kongsberg EM 124 Maintenance Manual Cable plans Topics Cable plan, Processing Unit, page 185 Cable plan - Transmitter Unit, page 186 Cable plan, Receiver Unit, 1 degree, page 194 Synchronization overview, 2 Transmitter Units 1 Receiver Unit, page 197 Remote on/off overview, 2 Transmitter Units 1 Receiver Unit, page 198...
Page 185: Cable Plan, Processing Unit
Cable layout and interconnections Cable plan, Processing Unit The Processing Unit cables include those used to connect the EM 124 Processing Unit to AC mains power, and to the transmitter and receiver units. One Ethernet cable is used to connect the Processing Unit to the Hydrographic Work Station.
Page 186: Cable Plan - Transmitter Unit
Kongsberg EM 124 Maintenance Manual Cable plan - Transmitter Unit The transmitter (TX) Unit cables include those used to connect the EM 124 TX Unit(s) to AC mains power, to the receiver (RX) Unit, to the Processing Unit and to the transducers.
Page 187 Cable layout and interconnections Transmitter Unit 1 458499/A...
Page 188 Kongsberg EM 124 Maintenance Manual Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 124 delivery. Transmitter Unit 1 RIO-P board TX RIO board 1 TX RIO board 12 Transmit transducer module number 1...
Page 189 Cable layout and interconnections Transmitter Unit 2 458499/A...
Page 190 Kongsberg EM 124 Maintenance Manual Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 124 delivery. Transmitter Unit 2 RIO-P board TX RIO board 1 TX RIO board 12 Transmit transducer module number 1...
Page 191 Cable layout and interconnections Posi- Transducer serial Cable Soc- Size of system tion number (fill in) Unit board TX 1 TX 2 TX 3 TX 4 TX 5 TX 6 TX 7 TX 8 TX 9 TX 10 TX 11 TX 12 TX 13 TX 14...
Page 192 Kongsberg EM 124 Maintenance Manual Posi- Transducer serial Cable Soc- Size of system Unit tion number (fill in) board TX 37 TX 38 TX 39 TX 40 TX 41 TX 42 TX 43 TX 44 TX 45 TX 46 TX 47...
Page 193 TX 82 TX 83 TX 84 TX 85 TX 86 TX 87 TX 88 TX 89 TX 90 TX 91 TX 92 TX 93 TX 94 TX 95 TX 96 Related topics List of EM 124 cables, page 200 458499/A...
Page 194: Cable Plan, Receiver Unit, 1 Degree
Kongsberg EM 124 Maintenance Manual Cable plan, Receiver Unit, 1 degree The receiver (RX) Unit cables include those used to connect the EM 124 RX Unit(s) to AC mains power, to the transmitter (TX) Unit, to the Processing Unit and to the transducers.
Page 195 Receive transducer 5 to 14 connects to Socket RX 5 to RX 14 on Receiver Unit Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 124 delivery. Marking of RX transducer cables Each transducer module and its cable is identified with a number as follows: Transducer: RX<nnn>...
Page 196 RX 5 RX 6 RX 7 RX 8 RX 9 RX10 RX 10 RX11 RX 11 RX12 RX 12 RX13 RX 13 RX14 RX 14 RX15 RX 15 RX16 RX 16 Related topics List of EM 124 cables, page 200 458499/A...
Page 197: Synchronization Overview, 2 Transmitter Units 1 Receiver Unit
Receiver Unit (RXU) Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 124 delivery. The fibre optic cable and the cable for remote control between the Transmitter Units and Receiver Units are delivered as a kit. The standard cable length is 10 metres.
Page 198: Remote On/Off Overview, 2 Transmitter Units 1 Receiver Unit
Kongsberg EM 124 Maintenance Manual Remote on/off overview, 2 Transmitter Units 1 Receiver Unit The EM 124 system can be switched on/off via the Processin Unit. Processing Unit Transmitter Unit 1 Transmitter Unit 2 Receiver Unit (RXU) Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 124 delivery.
Page 199: Cable Plan, Hydrographic Work Station
Cable layout and interconnections Cable plan, Hydrographic Work Station The topside/bridge cables include those used to connect the EM 124 Hydrographic Work Station and the display to each other, to AC mains power, and to external devices. Hydrographic Work Station Display The Hydrographic Work Station supports up to three displays.
Page 200: List Of Em 124 Cables
Kongsberg EM 124 Maintenance Manual List of EM 124 cables A set of cables is required to connect the EM 124 units to each other, and to the relevant power source(s). Cable Type From/To Minimum requirements Video cable From Hydrographic Work Station to display This is a commercial cable.
Page 201 Cable layout and interconnections Cable Type From/To Minimum requirements Control cable From Processing Unit to remote control device Remote on/off switch If remote control is not used, a termination plug has to be inserted in the Remote control plug on the Processing Unit. This plug is a 9 pin D-SUB supplied with the Processing Unit.
Page 202 STP (Shielded Twisted Pair) quality or better. If you use cables with lower bandwidth capacity you will reduce the EM 124 performance. The EM 124 is often a part of a project delivery. For such deliveries, specific project cable drawings are established to show all the main cables, and how the various products...
Page 203 Cable layout and interconnections are connected. In such project cable drawings, the EM 124 cables may be identified EM 124/Cx Related topics Cable plan, Processing Unit, page 185 Cable plan - Transmitter Unit, page 186 Cable plan, Receiver Unit, 1 degree, page 194...
Page 204: Clock Synchronization (1Pps)
The Processing Unit has a 1PPS (one pulse per second) input for clock synchronization. This is a generic photo. The CBMF board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 205 Cable layout and interconnections Two examples are shown to clarify. • Using +4.5 V input signal the input current will be as required (~10 mA). No additional resistance required. • An added resistor of 750 Ω and minimum 0.1 W must be used. 458499/A...
Page 206: External Synchronization
The Processing Unit is has a connection for interface to an external synchronization system. This is a generic photo. The CBMF board used by the EM 124 may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 207 External synchronization signal characteristics Signal Description Type Active Ready To Send - Output High from EM 124 when it Open collector output is ready for the next from isolation unit trigger pulse TRIG OUT Trigger out - Open collector output...
Page 208 Kongsberg EM 124 Maintenance Manual Two examples are shown to clarify. • Using +4.5 V input signal the input current will be as required (~10 mA). No additional resistance required. • An added resistor of 750 Ω and minimum 0.1 W must be used.
Page 209: Cable Drawings And Specifications
Cable layout and interconnections Cable drawings and specifications Topics RS-232 serial line using three wires and RJ45 connector, page 210 RS-422 serial line using five wires and RJ45 connector, page 211 Clock synchronisation (1PPS) using a coax cable, page 212 External synchronisation, page 213 Remote control, page 214 Remote Control using K-Rem, page 215...
Page 210: Rs-232 Serial Line Using Three Wires And Rj45 Connector
Kongsberg EM 124 Maintenance Manual RS-232 serial line using three wires and RJ45 connector An RS-232 serial line connection using three (3) wires is a common way to connect the EM 124 to external devices. Local connection RJ45 connector Connection on remote device...
Page 211: Rs-422 Serial Line Using Five Wires And Rj45 Connector
RS-422 serial line using five wires and RJ45 connector An RS-422 serial line connection is a common way to connect the EM 124 to external devices. An RS-422 serial line connection can transmit data at rates as high as 10 million bits per second, and may be sent on cables as long as 1500 meters.
Page 212: Clock Synchronisation (1Pps) Using A Coax Cable
Kongsberg EM 124 Maintenance Manual Clock synchronisation (1PPS) using a coax cable The Processing Unit is equipped with a 1PPS signal input for clock synchronisation. Male BNC connector Ground 1PPS signal This cable must be provided by the installation shipyard.
Page 213: External Synchronisation
The connector is RJ45 type. Local connection The connector is RJ45 type. Note Pin 3 and 6 is used by Kongsberg Maritime only. Connection on remote device Unless otherwise specified, this cable must be provided by the installation shipyard.
Page 214: Remote Control
Kongsberg EM 124 Maintenance Manual Remote control The Processing Unit can be switched on/off with a remote switch. This switch is connected to a 9–pin D-connector on the Processing Unit. Local connection, male 9–pin D-connector Connection to remote lamp and on/off switch Female 9–pin D-connector...
Page 215: Remote Control Using K-Rem
Cable layout and interconnections Remote Control using K-Rem The Processing Unit can be switched on/off with a remote switch. This switch is connected to a 9–pin D-connector on the Processing Unit. A dedicated junction box with on/off switches and light indication has been designed for this purpose (K-Rem). Local connection, male 9–pin D-connector Connection at the terminal strip in Remote Control Unit (K-Rem )
Page 216: Dummy Plug For Not Using Remote Control
Kongsberg EM 124 Maintenance Manual Dummy plug for not using remote control The Processing Unit can be switched on/off with a remote switch. If remote control is not used, the enclosed remote control dummy plug has to be inserted in the Remote Control connector in the Processing Unit.
Page 217: Remote Control Of Transmitter Unit
Transmitter Unit from the Processing Unit. Processing Unit end, male 4–pin Lemo connector. Lemo part number: FGG.3B.304.CLAD62Z . Kongsberg Maritime part number: 348015 Transmitter Unit end, male 9–pin D-connector Processing Unit end Pin layout male 4–pin Lemo connector.
Page 218 Kongsberg EM 124 Maintenance Manual Transmitter Unit end Pin layout male 9–pin D-connector. Connects to on the RIO-P board REMOTE ON/OFF IN at the bottom of the Transmitter Unit. Minimum cable requirements • : 2 x 0.5 mm² Conductors •...
Page 219: Remote Control Of Receiver Unit
Cable layout and interconnections Remote control of Receiver Unit Cable for switching on/off the Receiver Unit from the Processing Unit. This cable between the Transmitter Unit and the Receiver Unit is required if you want to switch on and off the Receiver Unit from the Processing Unit. The fibre optic cable and the cable for remote control between the Transmitter Units and Receiver Units are delivered as a kit.The standard cable length is 10 metres.
Page 220 Kongsberg EM 124 Maintenance Manual Connects to at the bottom of the Receiver Unit. REMOTE ON/OFF IN Minimum cable requirements • : 2 x 0.5 mm² Conductors • : Overall braided Screen • : 60 V Voltage • : Defined by the plugs...
Page 221: Remote Control Overview
The EM 124 system can be switched on/off with a central control switch. An EM 124 system has several hardware units, and to make it easier to switch on/off the system it is prepared for remote control. There are several methods to do this: •...
Page 222 Kongsberg EM 124 Maintenance Manual Receiver Unit 2, connector marked REMOTE ON/OFF OUT Note The number of Transmitter Units and Receiver Units depends upon the chosen system configuration. The diagram shows the principle for a maximum possible solution, with two Transmitter Units and two Receiver Units.
Page 223: Transmit Transducer Cable
Cable layout and interconnections Transmit Transducer cable The transducer cables are moulded to the transducer modules and connect in the other end to the Transmitter Unit (TXU) with connectors. The standard length of the transducer cables is 25 metres. The length of the cables are fixed. The cables can not be extended or shortened during installation.
Page 224: Receive Transducer Cable
Kongsberg EM 124 Maintenance Manual Receive Transducer cable The transducer cables are moulded to the transducer modules and connect in the other end to the Receiver Unit (RXU) with connectors. The standard length of the transducer cables is 25 metres.
Page 225: Equipment Handling
The phrase box is used to describe all kinds of cases, wooden or cardboard boxes etc used to hold the unit. Topics Transporting Kongsberg Maritime equipment, page 226 Lifting units and transportation boxes, page 227 Inspection of units and transportation boxes after arrival, page 229...
Page 226: Transporting Kongsberg Maritime Equipment
In the absence of other information, no other boxes must be stacked on top of it. Handle all boxes and units with care. Note Due to the nature of Kongsberg Maritime’s products, and the extensive use of delicate electronic parts, all units and boxes must be regarded and handled as fragile equipment.
Page 227: Lifting Units And Transportation Boxes
Equipment handling Lifting units and transportation boxes Some of the boxes used to hold equipment units may be heavy. Use caution when lifting. Prerequisites Units and boxes may be heavy. Make sure that you have the necessary equipment required for lifting heavy items. Persons using the lifting equipment must be skilled and have the relevant certificate(s).
Page 228 Kongsberg EM 124 Maintenance Manual Note Due to the nature of Kongsberg Maritime’s products, and the extensive use of delicate electronic parts, all units and boxes must be regarded and handled as fragile equipment. 458499/A...
Page 229: Inspection Of Units And Transportation Boxes After Arrival
Describe the damage, and collect photographic evidence if possible. Return the inspection report to Kongsberg Maritime as soon as possible. If units are not damaged, check the humidity absorbing material. If required, dry or replace the bags, then re-pack the unit(s) according to the packing instructions.
Page 230: Specifications For Storage Prior To Installation Or Use
Kongsberg EM 124 Maintenance Manual Specifications for storage prior to installation or use When a system, a unit or a spare part has been delivered to the customer, it may be subject to long time storage prior to installation and use.
Page 231 Equipment handling Caution Units containing lithium or alkaline batteries must be handled separately and with care. Such units are marked accordingly. Do not attempt to recharge such batteries, open them, or dispose of them by incineration. Refer to the applicable product data sheets or battery handling procedures for further details.
Page 232: Unpacking Instructions
If a unit has been damaged, prepare an inspection report stating the condition of the unit and actions taken. Describe the damage, and collect photographic evidence if possible. Return the inspection report to Kongsberg Maritime as soon as possible. 458499/A...
Page 233: Unpacking Mechanical Units
Equipment handling Place the box on a stable work bench or on the floor with the top of the box facing upwards. In the absence of other instructions, always open the top of the carton first. The contents of the box will normally have been lowered into the carton from above, so this will usually be the easiest route to follow.
Page 234: Unpacking Electronic And Electromechanical Units
Describe the damage, and collect photographic evidence if possible. Return the inspection report to Kongsberg Maritime as soon as possible. Assuming all is well, open the bag and remove the unit. Take out and keep the documentation.
Page 235: Unpacking Transducers
Equipment handling Unpacking transducers Prior to installation or use, transducers, sonar heads and hydrophones must be unpacked from their transport boxes. It is important that this unpacking is done without inflicting damage to the equipment. Prerequisites Observe the procedure for unpacking of standard parts and units. Context Transducers may be supplied mounted to a hull unit (if any), or packed separately.
Page 236 Kongsberg EM 124 Maintenance Manual Observe the handling rules for transducers. 458499/A...
Page 237: Specifications For Storage After Unpacking
Do not break the seal to open a circuit board package before the board is to be used. If the board package is returned to Kongsberg Maritime with the seal broken, we will assumed that the unit has been used, and then you will be billed accordingly.
Page 238 Kongsberg EM 124 Maintenance Manual Note Unless otherwise specified, transducers and hydrophones must not be stored in temperatures below −10°C and above +50°C. 458499/A...
Page 239 List of abbreviations List of abbreviations central processing unit GNSS global navigation satellite system global positioning system motion reference unit NMEA National Marine Electronics Association Processing Unit RU or RXU Receiver Unit Transmitter Unit 458499/A...
Page 240 Kongsberg EM 124 Maintenance Manual Index 19-inch rack installation kit RX noise spectrum........34 outline dimensions........157 RX Unit test ..........27 1PPS RX-CBMF link........... 30 clock synchronisation ......... 212 SW date and version........35 connection ..........212 System information........35 385387 TX channels ..........
Page 241 Index CBMF board removing ..........52 configuration..........116 replacing ..........51 connectors..........117 CPU Concurrent PP B12 description ..........115 spare part..........98 installing ..........59 CPU test links............116 BIST theory..........25 overview ..........115 purpose ..........115 removing ..........58 replacing ..........
Page 242 Kongsberg EM 124 Maintenance Manual display Transmitter Unit........118 environmental requirements......178 fan unit outline dimensions........174 385387 ............ 99 power requirements........176 installing PU..........62 weight ........... 174 removing PU ..........61 documents replacing PU..........60 download from website ........9 replacing TXU ...........
Page 243 TXU HV ......78 instructions replace Processing Unit ......... 48 unpacking ..........232 replace Receiver Unit ........84 interconnection cables transport Kongsberg Maritime equipment..226 list ............200 unpack a hydrophone........235 interconnections unpack a mechanical unit ......233 cables ............ 183 unpack a sonar head ........
Page 244 Kongsberg EM 124 Maintenance Manual mechanical unit LPTX36 Transmitter board......100 unpacking ..........233 PU power supply......... 98 modules Receiver Unit 1 degree........ 103 Processing Unit ........109 Receiver Unit 2 degrees......103–104 monitor Roal power supply ........104 environmental requirements......178 RXU power supply ........
Page 245 Processing Unit....... 48 Hydrographic Work Station ......175 replacing Receiver Unit ......... 84 Processing Unit ........175 transporting Kongsberg Maritime Receiver Unit........... 175 equipment ..........226 RX Unit ..........175 unpacking a hydrophone ......235 Transmitter Unit........175 unpacking a mechanical unit ......
Page 246 Kongsberg EM 124 Maintenance Manual Hydrographic Work Station ...... 16, 131 Receiver Unit..........85 Processing Unit ........15, 106 replacing this manual..........9 CBMF board..........57 VadaTech CP219 Ethernet switch ....113 CPU board ..........51 Ethernet switch PU ........54 fan unit PU..........
Page 247 Index storage temperature........177 1 pulse per second (1PPS) ......212 vibration..........177 alignment ..........182 weight ........... 173 interface capabilities........167 RX Unit test outline dimensions........172 BIST theory..........27 performance ..........163 RX-CBMF link power ............ 175 BIST theory..........30 remote control Processing Unit ......
Page 248 Kongsberg EM 124 Maintenance Manual transportation of delicate and fragile equipment ....226 target audience troubleshooting this manual..........9 tools............19 technical TX channels details............12 BIST theory..........32 technical details ..........12 TX RIO board technical requirements spare part..........100 ac mains power.........
Page 249 Index visual inspection transportation boxes ........229 units............229 waterline alignment specifications ......181 website download documents ........9 weight display ........... 174 Hydrographic Work Station ......173 Processing Unit ........173 Receiver Unit........... 173 RX Unit ..........173 technical specifications........ 172 transducer ..........

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