KRAMER ELECTRONICS LTD.
9
6.2
Increasing the Number of Outputs
To increase the number of outputs, the audio/video distribution amplifiers described in this manual can be
linked by setting up a cascaded configuration. It is not recommended to cascade more than two machines. An
example is set below how to get an additional output when cascading two PT102A. Perform the following steps:
1) Connect an audio source to the
INPUT
connector of the first PT102A.
2) Connect one acceptor to the
OUT1
connectors of the first PT102A.
3) Connect an audio cable from the
OUT2
connector of the first PT102A to the
INPUT
connector of the
cascaded PT102A.
4) Connect up to two audio acceptors to the
OUTPUT
connectors of the cascaded PT102A.
5) Operate the distribution amplifiers, source and acceptors.
6) Use
the
R, L
GAIN trimmers to control the left/right audio levels.
6.3
Increasing the Number of Inputs
When it is necessary to handle more than one input, a video switcher such as the 4x1VB, or a bigger one such as
the 801xl, can be used to select the required input to be switched to the outputs. The 4x1VB for example, can be
serially connected between the video sources and the distribution amplifier for video switching. It is designed
for composite video signals using BNC connectors, accepts up to four inputs and allows the user to select any
input to be routed to one output using buttons located on the side panel.
A typical switching configuration is described below, where one of four video inputs is selected by a 4x1VB
switcher and then outputted to a PT102V input. To extend the number of switcher outputs, up to two acceptors
can be connected to the PT102V for video distribution of the selected input.
Perform the following steps:
1) Connect up to four video sources to the
IN1-IN4
BNC connectors of the 4x1VB.
2) Connect a cable from the
OUTPUT
connector of the 4x1VB to the
INPUT
connector of the PT102V.
3) Connect up to two video acceptors to the
output
connectors of the PT102V.
4) Use
the
INPUT SELECTOR
switches of the 4x1VB to select the desired input to be switched.
5) Operate the 4x1VB, PT102V, sources and acceptors.
6) DO NOT USE the
GAIN
and EQ. trimmers of the PT102V to control the level of the output signal, unless
it is absolutely necessary! Please see the note at the beginning of this chapter.
Figure 5: Increasing the Number of Inputs
