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IMPO

RTAN

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Go to www

.extron.com f

or the complete 

user guide

, installation instructions,

 and 

specifications bef

ore connecting the 

product to the po

wer sour

ce.

FOX3 SR 201 • Setup Guide

This guide provides quick start instructions for an experienced installer to set up and operate the Extron FOX3 SR 201 Fiber Optic 
scaling receivers. This scaling receiver scales resolutions up to 4K @ 60 Hz, 4:4:4 video, and extends with 2-CH audio, RS-232, 
and IR over fiber. The FOX3 SR 201 is available in either singlemode (SM) or multimode (MM) transmission mode.

 

WARNING:

  The FOX3 SR 201 outputs continuous invisible light (Class 1 rated), which may be harmful to the eyes; use 

with caution. Plug the attached dust caps into the optical transceivers when the fiber cable is unplugged.

CLASS 1 LASER PRODUCT

, see the 

FOX3 SR 201 User Guide

, at 

www.extron.com

.

AVERTISSEMENT :

 

Le FOX3 SR 201 émet une lumière invisible en continu (conforme à la classe 1) qui peut être 

dangereux pour les yeux, à utiliser avec précaution. Associez les bouchons anti-poussière à l’ensemble émetteur/récepteur 
optique lorsque le câble fibre optique est débranché.

Produit laser de classe 1

, voir le 

FOX3 SR 201 User Guide

 sur 

www.extron.com

 (en anglais)

.

Installation

RS-232

REMOTE

POWER

12V

2.0 A MAX

Tx Rx G

A

OUT IN

B

OUT IN

LAN

RS-232

Tx Rx

Tx Rx

G

IR

HDMI

FOX3 SR 201

R

AUDIO

CONTROL

OUTPUTS

I

I

I

G

G

G

F

F

F

C

C

C

A

A

A

D

D

D

H

H

H

E

E

E

B

B

B

Figure 1. 

FOX3 SR 201 Rear Panel

A

  Power Inlet

F

  Remote RS-232

B

  Power LED

G

  LAN Ethernet port

C

  Audio output

H

  SFP module and LEDs

D

  HDMI output

I

  Reset button

E

  Control RS-232/IR port

Step 1 — Mounting

Turn off or disconnect all equipment power sources and mount the scaling receiver as required. For mounting details and 
considerations, see the 

FOX3 SR 201 User Guide

 at 

www.extron.com

.

Step 2 — Output Connections

a. 

Connect an HDMI display to the HDMI output (see figure 1 ,

D

).

b. 

Connect an audio output device to the Audio 5-pole captive screw port (

C

) (see figure 2 to wire the captive screw 

connector).

Unbalanced Stereo Output

Balanced Stereo Output

Unbalanced Stereo Input

Balanced Stereo Input

Do not tin the wires!

Tip

No Ground Here

No Ground Here

Tip

LR

Sleeves

Tip

Ring

Tip

Ring

LR

Sleeves

Tip

Ring

Tip

Ring

LR

Sleeves

Tip

Sleeve

Sleeve

Tip

LR

Figure 2. 

Audio Wiring Diagrams

ATTENTION:

• 

For unbalanced audio, connect the sleeves to the ground contact. DO NOT connect the sleeves to the negative (–) 
contacts.

• 

Pour l’audio asymétrique, connectez les manchons au contact au sol. Ne PAS connecter les manchons aux 
contacts négatifs (–).

Step 3 — Control Connections

a. 

To pass serial, IR data, or control signals, such as for serial control of a projector, 
connect the master device to the transmitter and the controlled device to the 
receiver via the CONTROL 5-pole captive screw connector (see 

E

 and figure 3 for 

wiring).

NOTE:

  For returned RS-232 and IR responses (from the scaling receiver to the 

transmitter) install the receiver-Tx-to-transmitter-Rx fiber cable in 

step 4b

.

Tx

Rx

Rx

Tx

Gnd

Gnd

IR Device

RS-232 Device

Rx

Tx

Rx

Tx
G

RS-232 

IR

CONTROL

Figure 3. 

RS-232 and IR Wiring

 

 

 

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