Nevion 3GHD-CHO-2x4 - Manual (Page 4)

3GHD-CHO-2x4/2x3 Rev. C
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Product overview
The Flashlink 3GHD-CHO-2x4 is a multi bit-rate distribution amplifier module providing high
performance media distribution for various signal formats from 19.4Mbps up to 2970Mbps. The
unit can be configured to do cable equalizing and reclocking of SMPTE 424M, SMPTE 292M
and SMPTE 259M signal formats.
The two inputs typically provide automatic cable equalizing for up to 70 meters (60 meters for
the passive bypass versions) of cable (Belden 1694A at 2970Mbps) with a total of 8/6
reclocked outputs. The 3GHD-CHO-2x4 will detect 3GHD, HD and SD rates and automatically
switch to the correct output slew-rate.
The reclockers support the bit-rates 270Mbps, 1483.5Mbps, 1485Mbps 2967Mbps and
2970Mbps. For other rates, the reclockers automatically switch to bypass mode, and the
3GHD-CHO-2x4 will work as a non-reclocking distribution amplifier with cable equalizers.
The 3GHD-CHO-2x4 also supports reclocking of DVB-ASI at 270Mbps, enabling all possible
rates including empty transport streams with only K28.5 padding packets. 4 of the outputs are
non-inverting and suitable for DVB-ASI.
The unit can be configured as a 1 x 8/6 distribution amplifier including any of the input ports.
The included intelligent change-over feature gives the ability to change input based on input
signal loss, loss of lock, EDH errors or a combination of the above.
There is also included a passive bypass function (with backplane board C2 and C4) from both
inputs to non-inverted outputs with less than 15 m loss of cable length (enables full redundancy
in case of mains failure).
The 3GHD-CHO-2x4 is designed for all distribution purposes in studio, duplication and
broadcast applications.