Extron electronic ISM 482 Switch User Manual


 
Installation, cont’d
Integration Scaling Matrix Switcher Installation2-4
3
Input audio connectors — Connect balanced or unbalanced stereo or mono
audio to these 3.5 mm, 5-pole captive screw connectors.
Connectors are included with the seamless switcher, but
you must supply the audio cable. Figure 2-4 shows how 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 2-4 — Captive screw connector wiring for inputs
When making connections for the seamless switcher from existing audio cables,
see figure 2-5. 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 diagram, figure 2-4.
Tip (+)
Sleeve ( )
Sleeve ( )
Ring (
-
)
Tip (+)
RCA Connector
3.5 mm Stereo Plug Connector
(balanced)
Figure 2-5 — Phono audio connectors
The audio level for each input can be individually set, via the front panel, the
Ethernet link, or the RS-232 link, to ensure that the level on the output does
not vary from input to input. See chapter 3, Operation, chapter 4, Programmer’s
Guide, chapter 5, Switcher Software, and chapter 6, Ethernet Operation for
details.