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LUMA 500ER

a fast, long-range, optical underwater communication system

Manual

Ver 1.4

3/2022

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Содержание LUMA 500ER

Страница 1: ...LUMA 500ER a fast long range optical underwater communication system Manual Ver 1 4 3 2022 ...

Страница 2: ...munication settings 5 3 2 1 Serial baud rate 5 3 2 2 Optical baud rate 5 3 2 3 Maximum packet size 5 3 2 4 Data wait time 5 3 2 5 Forward error correction 6 3 2 6 Packet transmit mode 6 3 2 7 Power level 6 3 3 Firmware update 6 4 Maintenance 8 5 Installation 8 6 Electrical and Software Characteristics 9 7 Mechanical Characteristics 10 8 Errata 12 ...

Страница 3: ...tion 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 Thermal fold back The emitter of the modem consists of 12 high power LEDs composed of one bank of 6 LEDs and two bank of 3 LEDs each During normal operation all 12 LEDs are transmitting in parallel to provide the highest possible ...

Страница 4: ... and run it Windows may generate a warning about running software downloaded from the internet which can be ignored Figure 1 LumaConf modem configuration software 3 1 Connecting the modem Plug in the LUMA modem with a serial adapter cable into a serial port or via a USB to serial converter The power data cable box supplied by Hydromea provides USB to serial conversion Connect a power supply to the...

Страница 5: ...600 115200 204800 227556 256000 512000 bit per second default 115200 bps When changing the baud rate of the modem the baud rate of the host PC also has to be changed to the same value Note that the changed baud rate is not permanent until a Save command is sent which is only possible if the new baud rate settings work on the modem and the host PC 3 2 2 Optical baud rate This is the speed of the op...

Страница 6: ...data transmission is below 19200 bps 3 2 6 Packet transmit mode The packet transmit mode specifies the packet level redundancy used to increase robustness of the link Normal No packet level redundancy is used default 4 1 redundant adds a 5th packet for every 4 packets for redundancy and error correction Dynamic retransmission The modem continues to send packets to use the full available optical ba...

Страница 7: ... operation make sure that under Firmware the entry LUMA500ER RS232 is selected for RS485 operation make sure that under Firmware the entry LUMA500ER RS485 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 ...

Страница 8: ... of silicone grease to the rubber part of the connector pins to protect the connector and to facilitate mating For maintenance details regarding the connector follow SeaConn s instructions 5 Installation The modem offers four M5 threaded holes to attach it to a surface Please ensure that there are washers between the modem and the attachment surface Avoid over tightening the attachment screws ...

Страница 9: ...able 9600 19200 38400 57600 115200 204800 227556 256000 512000 Transmission power Software selectable 1 2 3 or 4 banks with 3 LEDs each Interface Software selectable RS232 RS485 Emission wavelength 475nm 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...

Страница 10: ...STATUTORY 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 ...

Страница 11: ...3 2022 LUMA 500ER 11 ...

Страница 12: ...sion 1 1 22 5 2021 Updated logo Added Errata Added information on firmware update Updated links to LumaConf 1 2 28 12 2021 Updated download link for LumaConf 1 3 16 2 2022 Added additional clarifications on selectable values to 3 2 3 and 3 2 7 1 4 11 3 2022 Added chapter 4 Maintenance ...

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