background image

LUMA 100

 

4/2021 

 

Thermal fold-back:

 The emitter of the modem consists of 12 high-power LEDs 

composed of one bank of 6 LEDs and two banks of 3 LEDs each. During normal operation 
all 12 LEDs are transmitting in parallel to provide the highest possible transmission 
range. If the circuit board temperature rises above 60

°

C the modem will dynamically 

switch off emitter banks until the temperature returns to a safe level. 

3

 

Modem configuration 

The LUMA modems can be configured with the 

LumaConf

 software, available here (note: 

LumaConf for the LUMA 250LP also works with LUMA 100): 

https://files.hydromea.com/luma/LumaConf_250LP.zip

 

The LUMA modems can be configured with the 

LumaConf

 software. 

LumaConf

 runs on 

Windows 7, Windows 8 and Windows 10, 64 bit version. Installation is not required; simply 
extract 

lumaconf.exe

 from the ZIP archive to a location of your preference (e.g. the 

Desktop) and run it. Windows may generate a warning about running software downloaded 
from the internet, which can be ignored.  

Содержание LUMA 100

Страница 1: ...LUMA 100 a fast low power optical underwater communication system Manual Ver 1 2 4 2021 ...

Страница 2: ...ettings 6 3 2 1 Serial baud rate 6 3 2 2 Maximum packet size 6 3 2 3 Data wait time 6 3 2 4 Forward error correction 6 3 2 5 Packet transmit mode 7 3 2 6 Beacon period 7 3 2 7 Auto off delay 7 3 3 Sleep mode configuration example 7 3 4 Firmware update 8 4 Maintenance 8 5 Electrical and Software Characteristics 9 6 Mechanical Characteristics 10 7 Errata 12 ...

Страница 3: ...able supply voltage 12 V 36 V When properly aligned and within communication range the two modems now provide a half duplex serial communication link 2 2 Operation When in active mode the modem will broadcast all data received over the cable and send over the cable all data received from the optical receiver When in sleep mode the modem ignores all data coming in from the optical receiver and the ...

Страница 4: ...turns to a safe level 3 Modem configuration The LUMA modems can be configured with the LumaConf software available here note LumaConf for the LUMA 250LP also works with LUMA 100 https files hydromea com luma LumaConf_250LP zip The LUMA modems can be configured with the LumaConf software LumaConf runs on Windows 7 Windows 8 and Windows 10 64 bit version Installation is not required simply extract l...

Страница 5: ...ud rate The default setting is 115200 bps but it may be different if the modems have been configured to another baud rate Click on Config mode and the parameters should become active instead of greyed out if all settings and connections are correct The modem is now in configuration mode which allows you to change the modem settings Changed settings will be applied instantly but will revert to the ...

Страница 6: ...erhead small values improve latency The default value is 64 which is a good compromise 3 2 3 Data wait time This parameter specifies the maximum time in microseconds that the modem will wait for additional data before sending a packet before the maximum packet size is reached Larger values reduce packet overhead but increase the maximum latency Smaller values improve latency but increase the packe...

Страница 7: ... installed on a sensor change auto off delay to 30 seconds see 3 2 7 on the modem B that wakes up the other modem e g on an ROV change beacon period to 2 seconds see 3 2 6 After changing settings click Refresh to verify that the modem received the correct value Click Save to store the new value permanently in the modem s internal flash Then click Active mode to leave config mode and put the modem ...

Страница 8: ...that under Firmware the entry LUMA100 RS232 is selected click write Flash wait until the progress bar reaches 100 If it doesn t go through click Write Flash again until it does complete click Start application You should now be able to connect to the modem again as described above Verify that the modem settings are still correct they should carry across firmware updates in general but bigger updat...

Страница 9: ...ission power 1 banks with 3 LEDs Interface Software selectable RS232 RS485 Emission wavelength 475 nm Beam pattern 120 degree cone Connector pinout 1 Supply voltage Vs 2 GND 3 RS232 RX RS485 D 4 RS232 TX RS485 D 5 n c 6 n c Error correction Software selectable Forward error correction overhead 2 1 Forward error correction overhead 1 5 1 Burst error correction Auto sleep Software selectable 0 off 1...

Страница 10: ...TATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTY OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR NON INFRINGEMENT IN NO EVENT SHALL HYDROMEA BE LIABLE FOR ANY DIRECT INDIRECT ONSEQUENTIAL PUNITIVE SPECIAL OR INCIDENTAL DAMAGES INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF PROFITS BUSINESS INTERRUPTION OR LOSS OF INFORMATION ARISING OUT OF THE U...

Страница 11: ...4 2021 LUMA 100 11 ...

Страница 12: ...12 LUMA 100 4 2021 7 Errata Version Release date Errata 1 0 1 4 2021 Original version 1 1 22 12 2021 Updated logo Added Errata Updated links to LumaConf 1 2 7 4 2022 Updated link to LumaConf ...

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