Extron electronics ISM 482 User Manual page 18

Installation, cont'd
3
Figure 2-4 — Captive screw connector wiring for inputs
Figure 2-5 — Phono audio connectors
2-4 Integration Scaling Matrix Switcher • Installation
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.
Tip
Sleeve
Sleeve (s)
Tip
Sleeve
Unbalanced Input
(high impedance)
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 ( )
RCA Connector
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.
Tip
Ring
Sleeve (s)
Tip
Ring
Balanced Input
(high impedance)
Tip (+)
Ring (-)
Sleeve ( )
3.5 mm Stereo Plug Connector
(balanced)
600 ohms
Tip
Ring
Tip
Ring
600 ohms
Balanced Input
(600 ohms)