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S2CR 12/24 Acoustic Modem

 S2CR 12/24 Underwater Acoustic Modem
S2CR 12/24
S2CR 12/24
S2CR 12/24 Directivity Pattern

S2C R 12/24 Underwater Acoustic Modem

S2CR 12/24 is a depth-rated device for long range operations, providing data transfer rates up to 9.2 kbit/s over a 6000 m range. Low power consumption makes it ideal for long-term deployment. A directional transducer beam pattern (70 deg) is useful in vertical or slant channels or for stationary systems.


  • Medium- and long-range operations
  • Data transmissions in vertical or slant channels
  • Underwater observatories
  • Underwater acoustic sensor networks

Data Sheets

Underwater Acoustic Modem S2CR 12/24 Product Information, pdf


Operating Depth 200 m, Delrin housing
1000 m, Aluminium Alloy housing
2000 m Stainless Steel housing
6000 m, Titanium housing
Operating Range 6000 m (8000 m in good conditions)
Frequency Band 13 - 24 kHz
Transducer Beam Pattern directional, 70°
Acoustic Connection up to 9.2 kbit/s
Bit Error Rate less than 10-10
Internal Data Buffer 1 MB, configurable
Host Interface[1]  Ethernet, RS-232 (RS-485/422 optional)
Interface Connector up to 2 SubConn® Metal Shell1500 Series
Power Consumption Stand-by Mode 2.5 mW
Listen Mode[2] 5 - 285 mW
Receive Mode[3] 0.8 W
Transmit Mode:
2.5 W, 1500 m range
5 W, 3000 m range
15 W, 6000 m range
57 W, max. available
Power Supply[4] External 24 VDC (12 VDC optional) or
Internal rechargeable battery (optional)
Dimensions[5] Housing ø113 mm x 220 mm
Total length 390 mm
Weight, dry/wet Delrin: 2990/490 g
Aluminium Alloy: 4160/1560 g
Stainless Steel: 8000/5800 g
Titanium: 7780/5180 g

[1] See the Underwater Acoustic Modem S2CR 12/24 Product Information for available standard interface combinations.

[2] User-configurable Listen Mode is only available with a Wake-Up module installed. Power consumption in Listen Mode depends on Listen Mode settings.

[3] Power consumption for the RS-232 interface option. Add 500 mW for the Ethernet interface option.

[4] Contact EvoLogics for more information on power supply options.

[5] Dimensions of a Delrin housing, other builds are slightly larger.

Specifications subject to change without notice.