907-ECL (Sonar)
EMITTER COUPLED LOGIC MEDIA CONVERTER

The 907-ECL (Emitter Coupled Logic) media converter provides optical transmission of high speed data formats typically used by sonars over a singlemode or multimode fiber. This card may be switch configured to support single-ended and differential ECL/PECL signals.
For subsea applications, 907-ECL cards are typically connected to a sonar head at the remote end and the sonar processing unit at the console end. Supported sonar devices include the Reson 81XX Series, and the Kongsberg EM2000 and EM3000.
The 907-ECL card is available as a standalone card or as a CWDM stacking version for integration with a 907 multiplexer or other devices.
Features
- ECL/PECL inputs and outputs are AC-coupled, 75-ohm impedance
- On-board diagnostic LEDs for power and optical link
- External diagnostic LED connector
- Compatible with 907-DIAG-E diagnostic card and Graphical User Interface (GUI) software
- Interchangeable SFP optical transceiver
- Rugged design for harsh environments, including pressure tolerant version
Benefits
- Provides real-time, low latency, ECL/PECL signal transmission
- Extends sonar telemetry up to 10 km
- Simplifies troubleshooting with advanced diagnostics
- Supports a wide range of optical options, including CWDM wavelengths and multimode configurations
907-ECL Specifications | |
---|---|
No. Channels | 1 |
Format | ECL, PECL and pseudo-ECL |
Data Rate | 30 - 150 Mbaud |
Impedance | 75 Ohms (standard) 50 Ohms (option available) |
Latency | < 1 μs (not including fiber, ~5 µs/km) |
Optical Fiber | 1 singlemode (9/125 µm) or multimode (50/125 µm) |
Baud Rate | 30 - 150 Mbaud |
Wavelength | 1310 nm standard (CWDM optional, 1471 – 1611 nm) |
Flux Budget | > 20 dB (24 dB typical) |
Power Voltage | +5.0 VDC ±10%, regulated |
Power Current | 0.5 A typical (0.7 A max.) |
Power Used | 2.5 W typical (3.5 W max.) |
Dimensions | PC/104 (form-factor only) |
Weight | < 120 g (0.26 lb) including SFP |
ECL | SMB |
LED Status | 1 x 4-pin Molex connector |
Optical | LC (SFP) ST/PC (fiber bushing) |
Power | 2 pin Molex, 0.156 inch pin spacing |
Temperature | -10°C to +60°C (operational) -40°C to +85°C (storage) |
Humidity | 85% RH, non-condensing |
Vibration | 5 g, 25 - 1000 Hz, 3 axes |
Shock | 30 g, 11 ms half sine, 3 axes |
Contact Us
Technical Support
Telephone: +1-902-468-2263
Typical Applications
- Remotely Operated Vehicles (ROVs)
- Pipe inspection robots
- Sonar systems
- High speed data links