The UON Technologies Optical Modem Module (OMM), part of the UON Sensorbot™ family, is a semi-directed optical communication device designed for data-muling and networked sensing applications.
These modules are built for low-power, burst communications as well as multi-hop networks that extend the range of the optical data transfer.
Compatible with sensor packages, power supplies, and seafloor nodes, this blue-light deep-sea capable modem enables high-bandwidth, wireless underwater communication in a variety of ocean environments and applications.
Communication range, bandwidth, power consumption, and turbidity are fundamentally linked. The following product features and system were chosen to address stringent customer requirements in a wide range of ocean conditions.
The UON OMM system includes 2 4000 meter rated Type III anodized aluminum 6061 t6 Housing, VITROVEX Deep Sea Instrument Hemisphere - NMS-HS-BK7-4.5/7 (or alternate NMS-HS-BOR-4.5/7), SubConn® DLPBH13MAS Connector, DLPDC13F, DLPDC13F (shorted), DLPIL13F Data I/O Cable, OMM alpha Electronics including uC control with DSP physical layer and FPGA-based digital transceiver, 9-15V power supply input, FPGA-based digital transceiver, 2 amp hour rechargeable battery, pressure test certificate, documentation, and software
Spares kit and Vacuum Tools - Spare O-rings (2x sets) for housing, spare service port, all hardware, vacuum service tool, end-user level documentation for housing maintenance and operation
Customized Pelican case 1560 with foam pockets; holds two OMM's, connectors, cable, spares, and service parts
| Parameter | Details |
|---|---|
| Data Rates | Data rates 9600 bits-per-second to 115 kbps |
| Bit Error Rate | 1e-6 or better |
| Bandwidth | 5kHz to 35kHz |
| Memory | 32 GB |
| Range | Up to 40 Meters |
| Communication | 2π steradian |
| Modulation | OOK |
| Error detection | Parity Sum Check |
| Through water communications protocol | Confirmed packet delivery. If the transmitting end does not receive an acknowledgement, it will resend the data two more times. Number of retries is configurable |
| Addressing | Uniquely addressable with an 8-bit address |
| Receive sensitivity | 10 to 15 meter range with alpha equal to 0.3 to 1 |
| Peak transmit power | 3.3 Watts |
| Physical size | 8.45" L, 5.5" diameter cylinder |
| Depth Rating | Standard housing rated to 4,000m |
| Electronics | uP Control with DSP Physical Layer |
| Power supply input voltage | 9 to 15V |
| Current consumption | 1.25A transmit peak power |
| 250mA @ 12V 13-pin Low Profile SubConn Voltage (10 to 1 charge to use time ratio) | |
| 2mA sleep | |
| External Connections | 13-pin Low Profile SubConn header to connect power, host communications, and programming access |
| Host Communications | RS232, TTL, 3.3V |
| 9600 to 115.2 kbps programmable | |
| Host Command | ASCII to configure and command the modem |
| Temperature range | 0 to 80C |
