Nevion DA-3GHD-8-PL - Manual (Page 4)

DA-3GHD-8-PL / DA-3GHD-8 Rev. D
nevion.com | 4
1 Product overview
The Flashlink DA-3GHD-8-PL and DA-3GHD-8 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 292 and SMPTE 259M signal formats.
Both modules provide 8 reclocked non-inverting outputs, and the DA-3GHD-8-PL also
provides a passive loop-through output. The passive loop-through output facilitates
distribution of the source signal to multiple cards without corruption due to powerdown
or removal of cards. The passive loop-through output must be terminated into 75 ohm,
either by connecting it to a subsequent DA-3GHD-8-PL, or by attaching a 75 ohm BNC
terminator.
Both modules will detect HD and SD rates and automatically switch to correct output
slew-rate. The reclocker supports the bit-rates 270Mbps, 1483.5Mbps, 1485Mbps,
2967Mbps and 2970Mbps. For other rates the reclocker can automatically switch to
bypass mode and the DA-3GHD-8-PL/DA-3GHD-8 will work as a non-reclocking
distribution amplifier with cable equalizer. The DA-3GHD-8-PL/DA-3GHD-8 also
supports reclocking of DVB-ASI at 270Mbps, enabling all possible rates including
empty transport streams with only K28.5 padding packets. All 8 outputs (and the
passive loop-through output) are non-inverting and suitable for DVB-ASI.
The DA-3GHD-8-PL/DA-3GHD-8 is designed for all distribution purposes in studio,
duplication and Broadcast applications.
Figure 1: DA-3GHD-8-PL / DA-3GHD-8
Reclocker
EQ
Microcontroller
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
Remote
Control
Bypass
Passive
Loop-
Through
(-PL version
only)
Bypass Format
IN