The OET 1940 and OET 1940 MC are Ethernet to Fiber converters supporting CWDM and multi-mode fibers. They can extend the reach of 1GbE and 10GbE signals over long distances. They are straight forward pass-through and do not provide bitrate conversion from 1GbE to 10GbE.
The following options are available:
OET 1940 (Copper to/from CWDM)
RJ-45 to CWDM multiplexed fiber optic converter. This module includes a 10GbE RJ45 electrical SFP.
The CWDM SFP is sold separately. Please refer to the table below for the wavelengths available
OET 1940 MC (Multi-mode to/from CWDM)
Fiber multi-mode to CWDM converter. This module includes a multi-mode SFP.
The CWDM SFP is sold separately. Please refer to the table below for the wavelengths available
Accessories
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Key Features
- Supports standard 1GbE and 10GbE incl. Dante Audio and ST 2110
- Ethernet to CWDM fiber conversion
- Multi-mode to Single-mode Fiber conversion
- Multi-mode to CWDM Fiber conversion
- Supports distances up to 25km (15.5 miles) over Single-mode fiber
- Power and signal status LED
- Supports hot swapping and hot plugging
Ordering Information
| UPC / EAN | Model | Description |
|---|---|---|
| 4250479328372 | OET 1940 | 10G Ethernet to Fiber Transceiver (CWDM) |
| 4250479328396 | OET 1940 MC | 10G Ethernet to MMF to SMF Converter (CWDM) |
| Options | ||
| 4250479329041 | RFR 1200 | 1RU 19″ Chassis for 14 yellobriks |
| 4250479315013 | RFR 1001 | Single Module Mounting Bracket |
| 4250479314016 | P-TAP 1000 | P-TAP Battery Power Adapter Cable |
| 4250479314009 | XLR-1000 | 4 Pin XLR Battery Power Adapter Cable |
| 4250479323384 | LC/FC DUP | Duplex LC/FC Fiber Adapter |
| 4250479318267 | LC/SC DUP | Duplex LC/SC Fiber Adapter |
| 4250479318168 | LC/ST DUP | Duplex LC/ST Fiber Adapter |
| CWDM SFP Options | ||
| 4250479328938 | OH-TR-10G-1270-LC | 10G Ethernet CWDM Transceiver 1270nm |
| 4250479328945 | OH-TR-10G-1290-LC | 10G Ethernet CWDM Transceiver 1290nm |
| 4250479328952 | OH-TR-10G-1310-LC | 10G Ethernet CWDM Transceiver 1310nm |
| 4250479328969 | OH-TR-10G-1330-LC | 10G Ethernet CWDM Transceiver 1330nm |
| 4250479328976 | OH-TR-10G-1350-LC | 10G Ethernet CWDM Transceiver 1350nm |
| 4250479328983 | OH-TR-10G-1370-LC | 10G Ethernet CWDM Transceiver 1370nm |
| 4250479328990 | OH-TR-10G-1390-LC | 10G Ethernet CWDM Transceiver 1390nm |
| 4250479329003 | OH-TR-10G-1410-LC | 10G Ethernet CWDM Transceiver 1410nm |
| 4250479329010 | OH-TR-10G-1430-LC | 10G Ethernet CWDM Transceiver 1430nm |
| 4250479329027 | OH-TR-10G-1450-LC | 10G Ethernet CWDM Transceiver 1450nm |
| 4250479328242 | OH-TR-10G-1470-LC | 10G Ethernet CWDM Transceiver 1470nm |
| 4250479328259 | OH-TR-10G-1490-LC | 10G Ethernet CWDM Transceiver 1490nm |
| 4250479328266 | OH-TR-10G-1510-LC | 10G Ethernet CWDM Transceiver 1510nm |
| 4250479328273 | OH-TR-10G-1530-LC | 10G Ethernet CWDM Transceiver 1530nm |
| 4250479328280 | OH-TR-10G-1550-LC | 10G Ethernet CWDM Transceiver 1550nm |
| 4250479328297 | OH-TR-10G-1570-LC | 10G Ethernet CWDM Transceiver 1570nm |
| 4250479328303 | OH-TR-10G-1590-LC | 10G Ethernet CWDM Transceiver 1590nm |
| 4250479328310 | OH-TR-10G-1610-LC | 10G Ethernet CWDM Transceiver 1610nm |
- OET 1940
- Electrical Ethernet I/O
- RJ 45 Connector
- 10G or 1G network speed
- Max distance 30m* (98.4feet*)
- OET 1940 MC
- Multimode Ethernet Fiber I/O
- Duplex (Multimode) LC/PC
- 50/125µ (OM3)
- TX Optical Power: -6dBm to -1dBm
- RX Optical Sensitivity: -11dBm
- Max Distance 300m* (984 feet*)
- Multimode Ethernet Fiber I/O
- Electrical Ethernet I/O
CWDM Optical I/O
1 x fiber optic output (mandatory SFP selection for CWDM wavelength):
- Duplex (Singlemode) LC/PC
- Select from 18 available CWDM wavelengths from 1270nm-1610nm (Singlemode) ITU-T G.694.2
- TX Optical power: 0dBm to +4dBm
- RX Optical Sensitivity -23dBm
- RX Optical Wavelength: 1260nm – 1620nm
- Max Distance 25km* (15.5 miles*)
Power
- +12V DC @ 4.6W nominal – (supports 7 – 15 VDC input range)
- Power Present LED on side of module
Physical Size: (including connectors)
- Metric:120mm x 42mm x 22mm
- Inches: 4.73” x 1.65” x 0.86”
Weight:
- 125g (4.4oz)
Operational Temperature Range:
- Ambient 5 – 40ºC (41 – 104ºF) 90% Humidity (non-condensing)
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*Distance is an approximation. Actual distances achieved can be longer or shorter depending on the type of cable. Determine link losses and perform optical budget calculations to ensure correct operation

