Extron Electronics HVA - Manual (Page 15)

2-3 CrossPoint Matrix Switchers • Installation
Video input and output connections
All video input and output connections to the CrossPoint switchers are made
with female BNC connectors. Some types of video output devices do not have
BNC video output connectors. For these cases, a suitable cable or connector
adapter is necessary between the device output connector and the BNC input
connector of the CrossPoint.
2 RGBHV video inputs — Connect RGBHV video inputs to these BNC
connectors for each input.
3 RGBHV video outputs — Connect RGBHV video outputs to these BNC
connectors for each output.
The CrossPoint Series switchers can also switch RGBS, RGsB, RsGsBs,
component video, S-video, or composite video by using four, three, two, or one
BNC. If switching a video format other than RGBHV, ensure that the same
video planes (R, G, B, H/HV, and/or V) are used on the switcher output as on
the input.
The CrossPoint Series Matrix Switchers do not alter the video signal in any
way. The signal output by the switcher is in the same format as the input.
Audio input and output connections (HVA models only)
CAUTION
The captive screw connector can easily be inadvertently plugged partially
into one receptacle and partially into an adjacent receptacle. This
misconnection could damage the audio output circuits. Exercise care to
ensure the captive screw connector is plugged into the desired input or
output.
4 Connections for balanced and unbalanced audio inputs — Each input has a
3.5 mm, 5-pole captive screw connector for balanced or
unbalanced stereo audio input. Connectors are included
with each CrossPoint switcher, but you must supply the
audio cable. See figure 2-3 to wire a connector for the
appropriate input type and impedance level. High
impedance is generally over 800 ohms.
Unbalanced Input
Tip
Sleeve
Tip
Sleeve
Balanced Input
Tip
Ring
Sleeve (s)
Tip
Ring
Tip
Ring
Sleeve (s)
Tip
Ring
Balanced Input
(high impedance) (high impedance) (600 ohms)
600 ohms
600 ohms
Figure 2-3 — Captive screw connector wiring for inputs
When making connections for the CrossPoint Series Switcher from existing
audio cables, see figure 2-4. A mono audio connector consists of the tip and
sleeve. A stereo audio connector consists of the tip, ring and sleeve. The ring,
tip, and sleeve wires are also shown on the captive screw audio connector
diagrams, figure 2-3 and figure 2-5.