Extron electronic MAV Plus - Manual (Page 23)

2-5 CrossPoint 450 Plus and MAV Plus Switchers • Installation
PRELIMINAR
Y
See fi gure 2-4 to wire a connector on a mono audio BME.
Tip
Ring
Sleeves
0.2” (5 mm) max.
Do not tin the wires!
Figure 2-4 — Captive screw connector wiring for mono audio inputs
N The length of exposed wires is critical. The ideal length is 0.2” (5 mm).
• If the stripped section of wire is longer than 0.2”, the exposed wires may
touch, causing a short circuit between them.
• If the stripped section of wire is shorter than 0.2”, wires can be easily pulled
out even if tightly fastened by the captive screws.
N See fi gure 2-5 to identify the tip, ring, and sleeve when you are making
connections for the switcher from existing audio cables. 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, fi gure 2-3, fi gure 2-4, fi gure 2-6, and fi gure 2-7.
Tip (+)
Sleeve ( ) Sleeve ( )
Ring (-)
Tip (+)
RCA Connector
3.5 mm Stereo Plug Connector
(balanced)
Figure 2-5 — Typical audio connectors
The audio level for each input can be individually set via the front panel
or Ethernet or RS-232/RS-422 control to ensure that the level on the output
does not vary from input to input. See chapter 3, Operation, chapter 4,
SIS Programming and Control, chapter 5, Matrix Software, and chapter 6,
HTML Operation for details.
e
Connections for balanced and unbalanced audio outputs — These 3.5 mm,
5-pole (stereo audio BMEs) or 3-pole (mono audio BMEs) captive screw
connectors output the selected unamplifi ed, line level audio. Connect audio
devices, such as an audio amplifi er or powered speakers.
See fi gure 2-6 to properly wire an output connector for the stereo audio BME.
0.2” (5 mm) max.
Do not tin the wires!
Unbalanced Stereo Output
Tip
NO GROUND HERE.
Sleeve(s)
Tip
NO GROUND HERE.
Balanced Stereo Output
Tip
Ring
Tip
Ring
LR LR Left
Right
Left
Right
Figure 2-6 — Captive screw connector wiring for stereo audio output
C Connect the sleeve to ground (Gnd). Connecting the sleeve to a
negative (-) terminal will damage the audio output circuits.