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2.2.3 Maximum Data Rates

These are the maximum data rates as required by 61162-450, section 4.3.2:

Description

Amount

Maximum received per second, intended for target

50/sec

Maximum received per second, not intended for target

2000/sec

Maximum received per second, not intended for target at 50% of the maximum load.

1000/sec

Table 5: Maximum Data Rates

2.3 Syslog Messages

When Syslog network logging is enabled, Syslog messages are sent to the network address specified in the web
interface (seeTable 6: Syslog Messages on page 20. Refer to the network settings for more information.

Message ID

Message text

Additional information

SURV_AUDIO_FAILURE

Surveillance failed for audio
channels: <Mask>

<Mask> is replaced with a bitmask in hex of the
channels that have failed audio surveillance. Available
channels:

0x1 Fore

0x2 Aft

0x4 Starboard

0x8 Port

For example, 0xC indicates a failure of port and
starboard microphones.

SURV_LED_FAIL

Bad health state of LED <LED
id>

<LED id> is replaced with the ID of the LED that failed.

SURV_WDOG_NOT_
FEEDING

Not feeding watchdog
because all required tests
have not been passed:
<Mask>

Message informing that the unit will restart due to
a failing watchdog test. <Mask> is replaced with a
bitmask in hex that identifies the failing test. Tests
include:

0x1 Audio surveillance test

0x2 DSP surveillance test

0x4 Display response surveillance test

Table 6: Syslog Messages

2.4 Audio Packet Stream

A proprietary audio packet stream is sent together with all other network traffic.

This stream contains the audio data from a detected fog horn signal. A master device sends the data to the multicast
group at 239.192.0.65 on port 5004 and 5005. This audio packet stream is an RTP stream with RTP data on port 5004
and RTCP data on port 5005. The audio is sent as a single channel 24 bit signed PCM at a 24 kHz sampling rate. The
RTP stream uses a packet size of 20 ms.

An audio stream is only sent when a fog horn is detected and stops when the detection ends.

The maximum bandwidth used by this stream is 96 kB/s, with approximately 50 packets per second.

20  |  Operation

Summary of Contents for Alphatron SSRS

Page 1: ...Alphatron SSRS Sound Reception System Installation and Operation Manual www jrc am ...

Page 2: ...6 2 2 Network Operations 17 2 2 1 PJTR Sentence 17 2 2 1 1 SRS Proprietary Sentence 18 2 2 1 2 VOL Proprietary Sentence 18 2 2 1 3 HBT Sentence 19 2 2 2 DDC Sentence 19 2 2 3 Maximum Data Rates 20 2 3 Syslog Messages 20 2 4 Audio Packet Stream 20 2 5 Error Indicator 21 2 6 Detecting a Sound Signal 22 2 7 Detecting Multiple Sound Signals 23 2 8 Adjusting Volume and Lighting 24 2 9 Web Interface 24 ...

Page 3: ...n Detection Failure 36 4 1 4 Display Device Boot Failure 36 4 2 Service 36 4 3 Spare Parts 37 4 4 Recycling and Disposal 37 4 5 Test and Maintenance Records 38 5 Drawings 39 5 1 SSRA Microphone Unit 39 5 2 SSRD Display 40 5 3 Connection Diagram Microphone Unit 41 5 4 Connection Diagram Display 42 5 5 Cable Diagram 43 3 Contents ...

Page 4: ...016 V1 0 First Issue 28 April 2016 V1 1 Changed article nr s Cable Diagram 10 may 2016 V1 2 Changed Connection diagram 17 January 2020 I 2 Glossary The Glossary contains a list of commonly used abbreviations and a list of applicable standards I 2 1 Abbreviations Abbreviation Meaning CMOS Complementary Metal Oxide Semi conductor ESD Electrostatic Discharge DDC Display Dimming Control sentence DHCP ...

Page 5: ...1 450 Maritime navigation and radio communication equipment and systems Digital interfaces Part 450 Multiple talkers and multiple listeners Ethernet interconnection IEC 62288 Edition 2 2014 Maritime navigation and radio communication equipment and systems Presentation of navigation related information on shipborne navigational displays General requirements methods of testing and required test resu...

Page 6: ...2000 IMO Res MSC 191 79 Performance standards for the presentation of navigation related information on the shipborne navigational displays Table 3 Requirements Note This product is also ship wheel mark and type approval of marine products certified in accordance with Marine Equipment Directive MED 6 Preface ...

Page 7: ...afety Caution damage This symbol is used to highlight information that if not followed can result in damage to a product or equipment Warning injury death This symbol is used to highlight information that if not followed can result in personal injury or death 7 Cautions ...

Page 8: ...contains CMOS integrated circuits Observe precautions for handling electrostatic sensitive devices Electrostatic discharge ESD may damage this equipment Figure 1 Product Image Display Figure 2 Product Image Microphone III 2 System Description A sound reception system is an acoustical electronic navigational aid that enables an individual to hear sound signals from other ships like fog horns when s...

Page 9: ...Figure 3 Sound Reception System 9 Introduction ...

Page 10: ...ocation far away from noise and any mechanical vibration sources Do not install the microphone next to a sound reflective source or obstacle that may block sound from entering the microphone unit in a straight line Install the microphone unit in a typical lookout position 2 Wire the cables from the microphone unit to a junction box suited to the environment it is placed in Note The cables are 3 me...

Page 11: ...larger when the cable length is up to 100m If a longer stretch of cable is required up to a maximum of 200 m use a lead core size of 0 5mm2 or larger Figure 6 Wiring Schematic WH White Port BN Brown Port GN Green Aft YE Yellow Aft GY Grey Strb PK Pink Strb BU Blue Fore RD Red Fore BK Black GND VT Violet Vinn 11 Installation ...

Page 12: ...hile closed Generally this input is used by the ship s Typhoon system Figure 7 Ethernet Electrical Connections The set up for the master slave web interface via a computer or connection to an IEC 61161 450 network is as shown above Note The cable must be a minimum of Cat 5 S UTP quality Master Slave can be connected directly together or via a LAN switch 1 2 Display Unit Install the display unit in...

Page 13: ...te Snap on clips are located on the back of the Display Unit which fit exactly into the four holes provided in the mounting plate See Figure 35 SSRD Display on page 40 To remove the display firmly grip the panel with the tops of the fingers and pull backwards and up at the same time Do not use screwdrivers as these will damage the display cover and paint work of the console The display unit has a ...

Page 14: ...nge while the center of the arch is lit in red After having been on for 3 seconds the red light remains active Multiple indications can be active at once The indication pointer will remain for a configurable amount of time 7 seconds by default after the detection is finished The indication pointer configuration time can be altered within the web interface The light behind the CONTROL button is off...

Page 15: ...he CONTROL button for 5 seconds when in the normal mode When active the light around the CONTROL button appears green 2 Rotate the CONTROL button to select the Fore microphone Note Neither the volume nor dimmer row is lit orange when the microphone is selected 3 Rotate the CONTROL button to select the Aft microphone Note When the device first enters the manual listening mode it activates the Fore ...

Page 16: ...cation LEDs A more precise offset can be set in the web interface Note The default is a zero degree offset and a single tick with the CONTROL button will adjust the offset by 10 degrees 2 1 4 LED Test Mode To enter the LED test mode perform the following actions 1 Press and hold the CONTROL button for 15 seconds when in normal mode All LEDs on the display unit will light up when enabled making any...

Page 17: ...e defined in part 450 of the IEC 61162 standard Multiple IE 61162 450 sentences are sent and received by the Alphatron SSRS display device List of the applicable sentences PJTR sentences SRS proprietary sentences and VOL proprietary sentences HBT sentences DDC sentences Note For more information or clarification regarding these sentences refer to IEC 61162 450 2 2 1 PJTR Sentence The PJTR sentence...

Page 18: ...f needed Figure 17 Example SRS proprietary sentence 2 2 1 2 VOL Proprietary Sentence When a sentence code of the PJTR sentence is volume VOL the sentence is a volume adjustment notification This sentence is sent from both the master and the slave units when the volume is adjusted using the CONTROL button on the display unit The sentence is sent on the configured transmission group When an Alphatro...

Page 19: ...nces sent from any other unit on the network that sends on the MISC channel or uses the same transmission group as configured in the web interface network settings When a DDC sentence is received the display device will adjust the brightness to the new level received Two variants of the DDC messages are supported one with and one without the sentence status parameter at the end of the sentence Not...

Page 20: ...ate of LED LED id LED id is replaced with the ID of the LED that failed SURV_WDOG_NOT_ FEEDING Not feeding watchdog because all required tests have not been passed Mask Message informing that the unit will restart due to a failing watchdog test Mask is replaced with a bitmask in hex that identifies the failing test Tests include 0x1 Audio surveillance test 0x2 DSP surveillance test 0x4 Display res...

Page 21: ...us LED on the Phontech 8300 MkII will light up orange Figure 21 Indicating an error has been detected Note For more information regarding potential failures or issues refer to the tips explained under Troubleshooting Troubleshooting on page 35 21 Operation ...

Page 22: ...s a sound signal and determines the direction of the signal the direction will appear on the display unit After 3 seconds the orange LEDs disappear and the red LEDs remain The red LED indicator remains by default for 7 seconds or the configured amount of time Note The display timing in seconds can be adjusted from the web interface 22 Operation ...

Page 23: ...he Alphatron SSRS is able to detect multiple sound signals simultaneous One detection at 0 and another at 310 Figure 24 Detecting Multiple Sound Signals 0 and 310 Figure 25 Detecting Multiple Sound Signals 3sec after Detection 23 Operation ...

Page 24: ...se the control button to select the dimming adjust mode 4 Rotate the knob clockwise to increase and counterclockwise to decrease the LED intensity Note The nominal viewing and listening distance is 0 8m 2 9 Web Interface The Alphatron SSRS has a web interface for logging and configuring the unit this web interface also supplies information regarding the state of the unit 1 Enter the Alphatron SSRS...

Page 25: ...n is the first page shown when the web interface is accessed on the Alphatron SSRS This screen displays the status of the unit Figure 28 Home Screen Status OK The following information appears in the Status section of the screen Status Notification colour Text description Normal Green Everything operating as normal Error detected Red A message describing the error Note If an error has been observe...

Page 26: ...Figure 29 Home Screen Status Failed Acknowledge Messages 26 Operation ...

Page 27: ...SR1 USR8 groups Syslog settings The device logging over network can be enabled through the Syslog protocol By enabling the Syslog network logging the Alphatron SSRS will send information and error messages over the Ethernet network Syslog messages can either be sent to the IEC 61162 450 compliant address 239 192 0 254 514 or a user can configure a custom server address by changing the IP address a...

Page 28: ...ation To configure the network settings perform the following actions 1 Select the address type 2 Enter the applicable settings 3 Enter the applicable IEC settings 4 Select the Syslog network options 5 Click the Save settings button 28 Operation ...

Page 29: ...ical miles when a horn creates a 115 dB SPL sound level The signal to noise ratio configuration ranges from 2 to 6 The higher the values the stricter the Alphatron SSRS will be in detecting horns Lower values will detect more horns but are more susceptible to false detections To configure the signal to noise ratio perform the following actions Figure 31 Audio settings signal to noise ratio 1 Use t...

Page 30: ...ollowing actions Figure 32 Event Logging To view logs click the Enable logging radio button Log messages will appear in the Event Logging window To search or filter a log use the Filter text or Filter level settings Displays only log lines that contain a phrase or are as important as the given log level There are counters recording the number of IEC 61162 450 sentence errors received There are six...

Page 31: ...rrors in the TAG block TAG syntax Syntax error in the TAG block such as illegal characters or fields TAG framing Framing errors in the TAB block such as missing begin and or end characters Sentence syntax Syntax errors in IEC 61162 450 sentences Note For more information regarding sentences and error types refer to part 450 of the IEC 61162 standard To export the log click the Export log button 31...

Page 32: ...guration options that do not fall under any of the other categories Figure 33 Additional options To adjust any of these options perform the following actions 1 Select the applicable option 2 Enter the applicable information 3 Click the SAVE SETTINGS button 32 Operation ...

Page 33: ...all units must be 1 Connected to the same network 2 Configured with different IP addresses 3 Use the same transmission group Note More information about the options may be viewed by clicking on the question mark buttons next to the individual options The additional options page also offers the possibility to do the following maintenance Firmware updates Restore the unit to the factory defaults Reb...

Page 34: ...15 to 55 C Humidity 93 40 C Interfaces 100 Mbit Ethernet Mute closing contact Alphatron SSRS interface Table 7 Product Specification Display Unit Supply voltages Powered by Alphatron SSRS 5VDC Dimensions W H D 316mm x 338 mm x 316mm Refer drawing Figure 34 SSRA Microphone Unit on page 39 Weight 3 75 kg Temperature operating 25 to 55 C Temperature storage 25 to 70 C Humidity 93 40 C Table 8 Product...

Page 35: ...ot click the REBOOT button The device will automatically restart 4 1 Troubleshooting When the Alphatron SSRS device detects a problem the front status LED will switch from green to orange To get an indication of what may be wrong do one of the following Check the Syslog server if Syslog network logging is enabled Check the web interface of the device Below are tips for solving the following potent...

Page 36: ... noise ration setting in the web interface Note Refer to the additional information under Microphone surveillance failure 3 Do a factory reset Note Refer to the additional information under Microphone surveillance failure 4 1 4 Display Device Boot Failure If the Alphatron SSRS display unit fails to start when power is connected press and hold the reset button on the back of the display unit for 10...

Page 37: ...74 Alphatron SSRD GY Display SSRS Grey Color Scheme 3299 0076 Alphatron SSRA Separate Microphone Antenna 3299 0078 Table 9 Part Numbers Note Ensure that all spare parts being fitted to the Alphatron SSRS are original spare parts manufactured or approved by Alphatron Any use of counterfeit spare parts will deviate from the product type approval certificates and will void the warranty 4 4 Recycling ...

Page 38: ...4 5 Test and Maintenance Records Below is an overview of all test and maintenance activities Date M T Signature Inspection Table 10 Test and Maintenance records M Maintenance T Test 38 Maintenance ...

Page 39: ...5 Drawings 5 1 SSRA Microphone Unit Figure 34 SSRA Microphone Unit 39 Drawings ...

Page 40: ...5 2 SSRD Display Figure 35 SSRD Display 40 Drawings ...

Page 41: ...5 3 Connection Diagram Microphone Unit Figure 36 Connection Diagram SSRA 41 Drawings ...

Page 42: ...eception System Breaker 2A 24VDC 8W Shipyard 1 1 UNIT PWR 24VD UNIT PWR 24VD PORT mic PORT mic AFT mic AFT mic STBD mic STBD mic FORE mic FORE mic PWR OUT mic PWR OUT mic MUTE MUTE 1P1 Display Alphatron SSRD 181A 1 1 Mast JB 101 1 1 101 1 2 101 1 3 101 1 4 101 1 5 101 1 6 101 2 7 101 2 8 101 2 9 101 2 10 101 2 shld 2 WA181A121 5x2x0 75 xx 1 2 3 4 5 6 7 8 9 10 1 WA181A101 2x1 5 xx 1 2 2 WA181A141 1...

Page 43: ...5 5 Cable Diagram Figure 38 Cable Diagram 43 Drawings ...

Page 44: ... in this document is subject to change without notice and does not represent a commitment on the part of Alphatron Marine B V T 31 10 453 4000 Document name Alphatron SSRS F 31 10 453 4010 Document nr 1005 service jrc am Version V1 2 www jrc am All rights reserved Alphatron Marine B V Centers of Excellence Houston Rotterdam Singapore Tokyo ...

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