6
®
Making cascade connections
The Wizard MultiMedia Plus series of products have been specifically designed to
be flexible in order to support both your immediate and future needs for media
streaming. In addition to the standard connections made from transmitters to
receivers, you can also link extra transmitters to transmitters in order to provide more
display/speaker outputs. These non-standard links are called
cascade connections
.
Important limitations when cascading
• There should never be more than three cascade connections between the
primary transmitter
(the one connected to the source PC) and any receiver.
Cascade connections are possible only at the transmitter end of the link
cable(s).
• It is essential that the source PC, all AVU6004A/AVU6008A modules and
all connected displays are configured to use the same serial communication
settings (see
Switch.settings
for details). The AVU6001A, AVU6011A and
AVU6111A modules all auto-sense the serial configuration and do not need
to be set.
• Each cascade connection reduces the overall link length permissible from a
transmitter to the final receiver in a branch. To calculate the recommended
overall maximum link length for a branch, count the number of cascade
connections between the primary transmitter and the final receiver in that
branch. The effects of cascade connections on overall branch link lengths are
as follows:
Number of cascade connections
Overall length of links for a branch
(in a branch)
(from transmitter to furthest receiver)
0
300m (1000 feet)
1
250m (800 feet)
2
200m (650 feet)
3
175m (600 feet)
Notes
The lengths of transmitter cascade (video) connections should never be
longer than 2m (6 feet) and can be considered to have a negligible effect
upon overall link lengths.
The maximum resolutions achievable are: 1600 x 1200 x 60Hz at 200m
and 1280 x 1024 x 60Hz at 300m. If you are using lower resolutions then it
may be possible to achieve longer transmission distances than shown in the
above table although we do not recommend runs longer than 300m in any
installation. If you are running shorter cables then it may be possible to use
more cascades than shown in the above table.
Long cable lengths may induce colour separation effects. AVU6111A
receivers contain the necessary circuitry to minimise such effects.
Cascade connection example
This example demonstrates the effect of cascade connections upon overall link
lengths:
RECEIVER
Primary
Transmitter
TRANSMITTER
TRANSMITTER
TRANSMITTER
TRANSMITTER
From PC
Maximum length : 175m (600 feet)
Maximum length : 200m (650 feet)
Maximum length : 250m (800 feet)
Maximum length : 300m (1000 feet)
Cascade 1
Cascade 2
Cascade 3
STANDARD LINKS
STANDARD LINKS
STANDARD LINKS
STANDARD LINKS
RECEIVER
RECEIVER
RECEIVER
