User guide

 


16

Making cascade connections
The AdderLink AV 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 AV204T/AV208T modules and all
connected displays are configured to use the same serial communication
settings (see Switch settings for details). The AV200T, AV200R and AV201R
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. AdderLink AV201R
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
RECEIVER
RECEIVER
RECEIVER
Primary
Transmitter
TRANSMITTER
TRANSMITTER
TRANSMITTER
TRANSMITTER
From PC
Maximum length : 175m (600 feet)
Maximum length : 200m ( 50 feet)6
Maximum length : 250m (800 feet)
Maximum length : 300m (1000 feet)
Cascade 1
Cascade 2
Cascade 3
STANDARD LINKS
STANDARD LINKS
STANDARD LINKS
STANDARD LINKS