Wizard DP Extender
724-746-5500 | blackbox.com
Page 8
2.1 Video support
Wizard DP Extender works hard to transfer the highest possible video bandwidth between the transmitter and receiver units. To
allow for the differing grades of CATx links used to join the transmitter and receiver, Wizard DP Extender periodically checks the
quality of link A (the primary cable joining the transmitter and receiver). In this way it can accurately determine which of two
video transfer modes can be supported. Please see
Tips for achieving good quality links
for further information. Please also
see
Tested video resolutions
.
On the front panel, the
HR
indicator will illuminate when High Rate mode is available, whereupon the second video port is ena-
bled and the total available bandwidth for video signals is more than doubled.
The manner in which bandwidth is made available to the two video ports differs between the Low and High Rate modes, as
described here:
During low rate mode, the secondary video port is
disabled and a total bandwidth of 148.5
MegaPixels per second is made available to the pri-
mary video port. This is more than enough to sup-
port a single 1080P video display.
Low rate mode
High rate mode
This diagram indicates how the total bandwidth of the high rate mode can be shared
between the two video ports.
Video port 1 (which has priority) may take up 280 MegaPixels per second (of the total 308 Mpix/sec
bandwidth); while port 2 can use a maximum of 154 MPix/sec (subject to port 1 using no more than
154 MPix/sec of the available total bandwidth).
For example:
A single WQXGA
mode display could
consume nearly all
of the port 1 band
width alone, or...
... two WUXGA
mode displays could
share the total even-
ly.
Note: The example modes shown here
are for illustrative purposes and are based
upon average requirements for current
video displays. Video displays from some
manufacturers may consume more signal
bandwidth than those shown here.
* All approximate video mode band-
width figures are quoted with reduced
blanking.
