Extron electronic SW AV manual Captive screw connector wiring for audio inputs

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Figure 2-4 shows three methods of wiring the captive screw audio connectors for input and figure 2-5 shows two methods of wiring the connectors for output. A mono audio connector consists of the tip and sleeve. A stereo audio connector consists of the tip, ring and sleeve. If wiring a captive screw connector from an existing unbalanced audio cable, the white insulated wire is typically the left channel (tip) and the red insulated wire is typically the right channel (sleeve). There is no reliable standard for existing balanced audio cables.

 

Tip

L

 

Sleeve

 

 

 

Tip

R

 

Sleeve

 

 

0.2” (5 mm) max.

Unbalanced Stereo Input

 

Do not tin the wires!

 

(high impedance)

Tip

L

Ring

 

Sleeve (s)

 

Tip

R

Ring

 

Balanced Stereo Input

(high impedance)

Figure 2-4 — Captive screw connector wiring for audio inputs

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.

6RCA connector audio inputs (RCA connector audio (A RCA) models only) — Each input has a pair (left and right) of RCA connectors for unbalanced stereo audio input.

7Balanced or unbalanced audio output connectors (all audio models) — These 3.5 mm, 5-pole captive screw connectors output the selected unamplified, line level audio. Connect audio devices, such as an audio amplifier or powered speakers to these connectors. See figure 2-5 to properly wire an output connector.

Tip

L

Left

Tip

L

Left

NO GROUND HERE.

Ring

 

 

 

 

Sleeve(s)

 

 

 

 

 

Tip

R

Right

Tip

R

Right

NO GROUND HERE.

Ring

 

 

 

 

0.2” (5 mm) max. Unbalanced Stereo Output

Balanced Stereo Output

Do not tin the wires!

Figure 2-5 — Captive screw connector wiring for audio output

CAUTION

Connect the sleeve to ground (Gnd). Connecting the sleeve to a negative (-) terminal will damage the audio output circuits.

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.

SW AV Series Switchers • Installation 2-5

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Contents SW AV Series Precautions SW AV Series Switchers Quick Start QS-1 Quick Start SW AV Series SwitchersQuick Start SW AV Series Switchers, cont’d Table of Contents Table of Contents, cont’d One Features About the SwitchersVideo switchers Introductiontroduction, cont’dInputs Outputs Model Captive SW AV Series Switchers IntroductionVideo Screw Audio All video modelsCaptive screw connector a models Audio switchersRCA connector a RCA models All audio modelsAll switcher models Introduction, cont’d Two Mounting the Switcher Installationstallation, cont’dInstallation Overview Cabling and Rear Panel Views Mounting the switcherAudio input and output connections audio models only Installation, cont’dVideo input and output connections video models only Captive screw connector wiring for audio inputs External sync connection Remote connectionSimple external sync connection example Power connectionInstallation, cont’d Three Operationeration, cont’d Front Panel Controls and IndicatorsSW AV Series Switchers Operation SW 8A front panel Operation, cont’d Input selection controls and indicatorsAutoswitch mode controls and indicator video switchers Audio controls and indicators audio switchersPower Executive mode controls and indicatorSwitching inputs Front Panel OperationsExample 1 Select an input Example 2 Select a video input only video and audio switcherVideo switchers must be in normal mode Adjusting audio gain and attenuation audio switchersNot increment or decrement the audio level Example 4 Adjust the audio levelExample 4, step E Adjusting the audio level Audio level reset all inputs Switch modeAudio level reset single input Memory Optimizing the Audio Audio SwitchersExecutive mode front panel security lockout Troubleshooting If no Image Appears Operation, cont’d Four SW AV Series Switchers Remote Control Host-to-switcher communicationsRemoteControl,cont’d Simple Instruction Set ControlError responses Switcher-initiated messagesTimeout Using the command/response tableCommand Ascii Command Response Additional description Remote Control, cont’dSymbol definitions Resets Windows-Based Program Control Installing the softwareUsing the software Contact Closure Control SW 4 and SW 6 Models Only Infrared Remote ControlUsing the help system Remote Control, cont’d AAppendix a Specifications and Part NumbersSW AV Series Switchers Specifications and Part Numbers Specificationsecifications, cont’dAudio Control/remote switcher Specifications, cont’dSwitcher Optional accessoriesCables Extron PartBulk cables Super High Resolution Cable Super High Resolution CableFCC Class a Notice Extron’s Warranty Extron Electronics, USA
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