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Connections

The SDI video input is connected to the 75 Ohm BNC connections (up to 

3G).  The fiber connection is LC Duplex SMF (Singlemode).  An example 

of the LC connector shown below (fiber Optic cable and LC connectors 

are not supplied).

The OTT 1842-1 basic module has no pre-determined fiber SFP sub 

module included. Instead, when ordering the CWDM module  the 

customer selects one of the 18 available wavelengths when ordering 

the module. If you need to check the wavelength of an SFP, a sticker 

with the type description can be found on every LYNX-Technik SFP 

when removing it from the yellobrik module.

Operation

The OTT 1842-1 supports any SDI video signal from 270Mbit/s to 

3Gbit/s.  Maximum distance is 40 km (24.8 miles).  Data transmission 

activity is indicated by the TX LEDs on the side of the module.  

The module has two independent channels. It supports CWDM with the 

wavelength selected at the time of order.

Operation is fully automatic. The SDI Input video rates are automatically 

detected, reclocked and transmitted over the optical connections.

Note:

  If TX LED is OFF this indicates no SDI input is present, or the input signal is 

not valid.

Power

The module requires a clean 12V DC (7-24V DC) power source. An LED is 

provided to confirm power is connected. A 12V DC power supply is 

included with the module. If you are applying your own power  source, 

please provide a clean, 7-24V DC power source.  Power consumption 

information can be found in the technical specifications table.

 

Optional Mounting Brackets

The optional RFR 1001 mounting brackets can be 

used to permanently mount the modules on any 

flat surface or on 19‘‘ rack rails.

Power Lead Strain Relief

The modules have a small hole in the case located above the power 

connection to prevent the power lead being accidentally pulled out.  

Use the supplied tie-wrap and secure the lead as shown below.

Note:

 OTT 1842-1 is identical in terms of mounting and securing 

Note: 

The module is designed for use 

with SMF (Singlemode) fiber cable. 

The optional RFR 1000-1 rack mount can be used to permanently

mount up to 14 yellobrik modules. In addition, the RFR 1000-1 can 

provide full power redundancy for all mounted yellobriks.

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