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- Page 1 PACS ACOUSTIC DECK UNIT U S E R H A R D W A R E M A N U A L 0010996_REV_E 10/8/2024 EdgeTech 4 Little Brook Road West Wareham, MA 02576 Tel: (508) 291-0057 : (508) 291-2491 www.EdgeTech.com...
- Page 2 The information, figures, and specifications in this manual are proprietary and are issued in strict confidence on condition that they not be copied, reprinted, or disclosed to a third party, either wholly or in part, without the prior written consent of EdgeTech. Any reproduction of EdgeTech-supplied software or file sharing is strictly prohibited.
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Page 3: Attention-Read This First
AT TEN TION— READ TH IS F IRST! All personnel involved with installing, operating, or maintaining the equipment described in this manual should read and understand the warnings and recommendations provided below. CAUTION! This equipment contains devices that are extremely sensitive to static electricity. -
Page 4: Hardware Variations And Compatibility
EdgeTech will make every effort to see that replacement components are interchangeable and use the same software drivers (if applicable). At times, however, direct replacements may not exist. EdgeTech will provide the necessary drivers with the replacement part when this happens. -
Page 5: About This Document
ABO U T THI S DOC UMEN T We, the employees at EdgeTech, would like to thank you for purchasing a PACS Acoustic Deck Unit. Our policy is to provide high-quality, cost-effective products and support services that meet or exceed your requirements. -
Page 6: Warranty Statement
All equipment manufactured by EdgeTech is warranted against defective components and workmanship for a period of one year after shipment. Warranty repair will be done by EdgeTech free of charge. Shipping costs are to be borne by the customer. Malfunction due to improper use is not covered in the warranty, and EdgeTech disclaims any liability for consequential damage resulting from defects in the performance of the equipment. -
Page 7: Returned Material Authorization
Refer to the RMA number on all documentation and correspondences. All returned materials must be shipped prepaid. Freight collect shipments will not be accepted. All equipment should be adequately insured for shipping, but equipment belonging to EdgeTech must be insured for full value. -
Page 8: Software Service Overview
EdgeTech provides software services free of charge. This software agreement does not address customer- specified modifications or enhancements. These services may be ordered separately. Furthermore, EdgeTech software upgrades are meant for the sole use of EdgeTech customers. Any reproduction of EdgeTech-supplied software or file sharing is strictly prohibited. -
Page 9: Customer Service
C USTO MER SE RV I CE Customer service personnel at EdgeTech are always eager to hear from users of our products. Your feedback is welcome and is a valuable source of information that we use to improve these products continually. -
Page 10: Company Background
— for the acquisition of underwater data, including marine, estuarine, and coastal applications — for over 50 years. EdgeTech responds to the needs of the scientific, naval, and offshore communities by providing industry- leading equipment — such as sub-bottom profilers, side scan sonar, acoustic releases, USBL positioning systems, and bathymetric systems —... -
Page 11: Table Of Contents
List of Tables xv Overview ........................1-1 1.1.1 Basic Functionality ........................1-2 1.1.2 PACS Components ........................1-2 1.1.3 Compatible EdgeTech Transponding Releases ................1-2 Specifications ........................2-3 2.1 PACS Acoustic Deck Unit ........................2-3 2.1.1 PACS Acoustic and Mechanical Specifications ................2-3 2.1.2 PACS Power Specifications ...................... - Page 12 3.5.1 Command Menu <CMD> ......................3-20 3.5.2 Ranging Menu ......................... 3-20 3.5.3 System Menu........................... 3-21 Configuring PACS to Operate With Edgetech Products ........4-22 4.1 LF-BACS Operation Configuration ....................4-22 4.2 MF Operation Configuration ......................4-25 4.3 MFE Operation Configuration ......................4-28 Maintenance .......................
- Page 13 xiii 5.1.3 Battery Storage ........................5-31 5.1.3.1 Battery Pack Storage Guidelines: ..................5-34 APPENDIX A: Interrogation Codes ....................A-35 APPENDIX B: Glossary of Terms ....................B-38...
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Page 14: List Of Figures
L I ST OF FI GU RES Figure 1-1: PACS Acoustic Deck Unit ......................1-1 Figure 1-2: PACS In Closed Splashproof Case ..................... 1-1 Figure 1-3: PACS with LF Transducer and Manual on Thumb Drive ............1-2 Figure 2-1: The PACS with the LF Dunking Transducer ................2-5 Figure 2-2: The PACS with the MF Dunking Transducer ................ - Page 15 L I ST OF TA BL ES Table 1-1: Compatible EdgeTech Transponding Releases ................1-2 Table 2-1: PACS Acoustic and Mechanical Specifications ................2-3 Table 2-2: PACS Power Specifications ......................2-3 Table 2-3: Allowed BACS Tone Pair Breakdown..................2-4 Table 2-4: Low-Frequency Transducer Mechanical Specifications ............. 2-5 Table 2-5: Medium-Frequency Transducer Mechanical Specifications ............
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Page 16: Overview
OVE RV IEW The PACS, Portable Acoustic Command System, is a highly versatile deck unit used to control and range on EdgeTech’s (formerly ORE Offshore) low frequency (LF) or medium frequency (MF) acoustic releases, transponders, and board sets using EdgeTech’s proven EBACS and BACS command code systems. -
Page 17: Basic Functionality
PACS supports low to medium transponder frequencies and EdgeTech EBACS and BACS command coding. 1.1.2 PACS Components A typical PACS plus transducer order comes with: PACS Deck Unit •... -
Page 18: Specifications
S PECI FI CATION S 2.1 PACS Acoustic Deck Unit 2.1.1 PACS Acoustic and Mechanical Specifications SPECIFICATION VALUE Source level Variable, High/Low, 192 / 195 dB re 1 uPascal at 1 meter Pulse widths 5 mS, 10 mS Interrogate tones 9.0, 11.0, 17.0 &... -
Page 19: Ebacs Command Structure
NOTE: The PACS LF deck box firmware must be up to date to send these commands. PACS LF firmware should be 2.01 or later. Contact EdgeTech CUSTOMER SERVICE for details on updating the firmware on your deck box. -
Page 20: Dunking Transducers
2.2 Dunking Transducers There are two Dunking Transducer Options for the PACS: The LF Transducer and the MF Transducer. 2.2.1 Low-Frequency (LF)Transducer Figure 2-1: The PACS with the LF Dunking Transducer SPECIFICATION VALUE Transducer Size LF Hydrophone LxW: 4” (10.2 cm) x 4” (10.2 cm) Table 2-4: Low-Frequency Transducer Mechanical Specifications 2.2.2 Medium-Frequency (MF) Transducer Figure 2-2: The PACS with the MF Dunking Transducer... -
Page 21: Kevlar Reinforced Cable Specifications
2.3 Kevlar Reinforced Cable Specifications SPECIFICATION VALUE Kevlar Reinforced Cable 65’ (20m) x 0.375” (9.5mm) Table 2-6: Kevlar Reinforced Cable Specifications 2.4 Serial Cable Pin Out DB9 PIN NUMBER AMP PIN NUMBER DB9 pin 2 AMP pin 8 DB9 pin 3 AMP pin 7 DB9 pin 5 AMP pin 2... -
Page 22: Set-Up And Activation
SE T-U P AND AC TI VATION The following section explains how to setup and activate the PACS system for use. 3.1 Internal Battery Considerations The PACS Acoustic Deck Unit has been thoroughly tested and shipped from the factory, and a lithium-ion battery pack has been installed. -
Page 23: Figure 3-2: Remove Cap From Power/Rs 232 Bulkhead Connector
Figure 3-3: Connect Power/RS 232 Cable Figure 3-2: Remove Cap from POWER/RS 232 Connector Tabs and POWER/RS 232 Connector Bulkhead Connector Inserts Figure 3-4: Thread Power/RS 232 Cable Connector Figure 3-5: Turn PACS Power Switch To the On Position To Charge... -
Page 24: Discharging And Storage
3-pin plug into the 3-socket XDCP connector. Preparation: Before mating the transducer connector to the PACS connector, ensure it is clean and lubricated with silicon grease. EdgeTech recommends Novagard G624. Instructions: Figure 3-7: Transducer Cable 3- Pin Plug and 3-Socket PACS... -
Page 25: Keypad Descriptions
3-10 3.3 Keypad Descriptions Figure 3-9: Image of Keypad NAME FUNCTION Command Enter command mode Ranging Enter ranging mode MENU Menu Enter the menu for set up Guard Press and hold during guarded commands Also used as “shift” for entering letters Clear Clear number from the display Enter... -
Page 26: Activating The Pacs Unit
3-11 3.4 Activating the PACS Unit The PACS is activated by toggling the power switch to the ON position. Saved configurations will be loaded if the save settings feature found in was used. New configurations and settings can be YSTEM accomplished by using the Menu button on the keypad. -
Page 27: Command Mode
(if the underwater unit has transponder capability). Commands are entered as EdgeTech standard BACS six-digit or EBACS 10-digit codes. Both are used to control and initiate various functions in underwater equipment. Refer to the command configuration sheet and hardware manual shipped with the equipment you wish to communicate with for the commands used and the anticipated result of sending these commands. - Page 28 3-13 Press the red CMD button on the keypad to enter and send a command. The display on the PACS will change to one of the following: EdgeTech LFBACS Mode Enter Code: EdgeTech MFE Mode Enter Code: EdgeTech MF Mode...
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Page 29: Ranging Mode
3-14 Sending command now After the command has been sent, the PACS will listen for a response, and the display will change to: Waiting for a reply After the first reply is detected, a bar will be placed at the display home position, and the cursor will then begin moving across the display at a ½... -
Page 30: Repetitive Cw Ranging
3.4.2.3 Encoded Interrogate Ranging The PACS Deck Unit can range using the encoded interrogation method of ranging. This method is used for ranging to EdgeTech’s MFE series release and is also compatible with EdgeTech’s MF series release and transponders. PACS Acoustic Deck Unit... - Page 31 3-16 NOTE: MF series releases and transponders support CW and encoded interrogation methods. This ranging method is a secure interrogation method that uses an address for each transponder. The encoded interrogate is a 4-digit Octal code, similar to a BACS command. It is actually an 8-bit pulse string that is transmitted, followed by an interrogation pulse.
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Page 32: Serial Port Operation
3-17 Pressing the ENT key once allows the Interrogation Code to be changed. Pressing ENT a second time can re-send the same Interrogation Code. 3.4.3 Serial Port Operation The PACS Deck Unit comes with a serial port connection that can be used to either log activity or remotely control the PACS. -
Page 33: Table 3-2: Host Mode Communication Examples
3-18 The PACS will respond with an asterisk ( * ) when it receives a valid command. The PACS will reply with a pound sign ( # ) if it does not recognize the command. After sending a command using Host Mode, the PACS will begin listening for the status reply. -
Page 34: Pacs Menus
3-19 COMMAND DESCRIPTION Return ranges automatically after receipt of IN Set LF-BACS command mode Set MF command mode Set MFE command mode Do not return ranges after receipt of IN Get the last range value UGxxxxx Set the upper range gate to xxxxx mS. LGxxxxx Set the lower range gate to xxxxx mS. -
Page 35: Command Menu
3-20 3.5.1 Command Menu <CMD> When the Menu key is pressed, the first menu option is the Command Menu, which is used to set the Command Type. When the display reads “Go to Command Menu?”, pressing ENT takes the user to the command selection menu. -
Page 36: System Menu
3-21 3.5.3 System Menu The system menu enables control of some basic functions of the PACS Deck Unit. These functions include: MENU ITEM DESCRIPTION High and low receiver sensitivity settings are available in the PACS. The difference in sensitivity is approximately 6 dB in the detection threshold. High sensitivity is recommended in deep open water, where ranges are expected to Receiver Sensitivity: be long. -
Page 37: Configuring Pacs To Operate With Edgetech Products
Configuring PACS to Operate With Edgetech Products The PACS Deck Unit is designed to work with EdgeTech’s LF, MF, and MFE, series releases and transponders. The following procedures outline how to configure the PACS for each. 4.1 LF-BACS Operation Configuration This procedure describes how to configure the PACS for operation with EdgeTech’s LF Releases and... - Page 38 Press the yellow ENT key to set the lower range gate. 17. With EdgeTech LF acoustic releases, because the standard TAT is 13mS, a lower range gate of less than 35 meters is not attainable. To select a lower range gate, use the left and right arrows. With each keystroke, the lower range gate will increase or decrease by 25 meters, and holding an arrow key in will cause the value to scroll up or down.
- Page 39 4-24 yellow ENT key to set it. Sound speed can be set in 1 meter per second increments. Holding an arrow key in will cause the value to scroll up or down. 20. After setting the sound speed, the next Ranging Menu item will ask if the user wants to set either manual Ranging Mode or repetitive Ranging Mode.
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Page 40: Mf Operation Configuration
4-25 4.2 MF Operation Configuration This procedure explains how to configure the PACS for operation with EdgeTech’s MF series Releases and Transponders: 1. Turn the Deck Unit on without connecting the transducer. It takes approximately two seconds for the PACS to power up. It will beep twice, and the display will become legible when ready. - Page 41 Press the yellow ENT key to set the lower range gate. 19. With EdgeTech MF Acoustic Releases, because the standard TAT is 100mS, a lower range gate of zero meters is achievable. To select a lower range gate, use the left and right arrows. The lower range gate will increment or decrement 25 meters with each keystroke and holding an arrow key in will cause it to scroll.
- Page 42 4-27 left and right arrows to select a value of sound speed and the yellow ENT key to set it. Sound speed can be set in 1 meter per second increments. Holding an arrow key in will cause the value to scroll up or down.
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Page 43: Mfe Operation Configuration
REPLY frequency. Press the yellow ENT key to set a reply frequency. 9. Standard EdgeTech MFE releases have two available reply frequencies: 24.0 kHz or 25.0 kHz. Use the left and right arrows to select the frequency desired. Press the yellow ENT key to set the selection. - Page 44 Press the yellow ENT key to set the lower range gate. 17. With EdgeTech MFE acoustic releases, because the standard TAT is 100mS, a lower range gate of zero meters is achievable. To select a lower range gate, use the left and right arrows. The lower range gate will increase or decrease 25 meters with each keystroke, and holding an arrow key in will cause the value to scroll up or down.
- Page 45 4-30 23. Unless the user has a special underwater unit equipped with telemetry, disable telemetry. Use the left and right arrows to select it, and use the yellow ENT key to disable telemetry. 24. After telemetry is disabled, the Ranging Menu will return to the start of the range menu. 25.
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Page 46: Maintenance
If the PACS is going to be stored for a prolonged period of time (over 6 months), the battery pack should at least be unplugged. However, EdgeTech recommends removing the battery from the unit and stored separately. The Battery should be discharged to approximately 15.0 volts before storage. -
Page 47: Figure 5-1: The Front Panel With The Screws Highlighted
5-32 To remove the Battery Pack: 1. Remove the ten screws from the front panel with a Philips head screwdriver. Figure 5-1: The Front Panel with the Screws Highlighted 2. Carefully lift the Front Panel from the Pelican Case, flip it over, and rest the top of the Front Panel on the Pelican Case. -
Page 48: Figure 5-3: The Pacs Battery Connection
5-33 3. Unplug the two battery connections from JP10 BT1 and JP11 BT2 on the PCB. NOTE: When the Battery is reinstalled, it does not matter which Battery connection is plugged into JP10 BT1 and JP11 BT2. Figure 5-3: The PACS Battery Connection 4. -
Page 49: Battery Pack Storage Guidelines
5-34 5. Remove the Battery Pack. Figure 5-5: The Battery with the Retainer Plate Removed Figure 5-6: The PCB Without the Battery Pack 5.1.3.1 Battery Pack Storage Guidelines: The Deck Unit/Battery Packs should be stored at a temperature of approximately 20°C (68°F). -
Page 50: Appendix A: Interrogation Codes
A-35 A PPE N DIX A: I nte rro gat ion Codes The table below displays all of the possible Interrogation Codes for the PACS. DECIMAL BINARY DECIMAL BINARY 00000011 00110111 00000101 00111000 00000110 00111001 00000111 00111010 00001001 00111011 00001010 00111100 00001011 00111101... - Page 51 A-36 DECIMAL BINARY DECIMAL BINARY 00101100 01011101 00101101 01011110 00101110 01011111 00101111 01100000 00110000 01100001 00110001 01100010 00110010 01100011 00110100 01100100 00110101 01100101 00110110 01100111 01101000 10011110 01101001 10011111 01101010 10100000 01101011 10100001 01101100 10100010 01101101 10100011 01101110 10100100 01101111 10100101 01110000 10100110...
- Page 52 A-37 DECIMAL BINARY DECIMAL BINARY 10001001 10111110 10001010 11000000 10001011 11000001 10001100 11000010 10001101 11000011 10001110 11000100 10001111 11000101 10010000 11000110 10010001 11000111 10010010 11001000 10010011 11001001 10010100 11001010 10010101 11001011 10010110 11001101 10010111 11001110 10011000 11001111 10011010 11010000 10011011 11010001 10011100 11010010...
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Page 53: Appendix B: Glossary Of Terms
10 KHz. The total command duration for LF-BACS is nine seconds. This command type is the original BACS format and is used in EdgeTech’s 8000 series releases, CART releases, SWR releases, PORT L, AA100 actuators, to name a few. - Page 54 B-39 Slant Range: Length of the straight-line path between the deck unit’s hydrophone and the transponders transducer. It can be converted to Azimuth distance if the transponder and deck unit’s hydrophone depths are known. Sound Speed: The rate at which an acoustic wave travels through a specific medium. In PACS, it is meters per second.
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