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1

IMPO

RTAN

T:

Go to www

.extron.com 

for the 

complete user guide

, installation 

instructions,

 and specifications.

IN1804 Series • Setup Guide

The Extron IN1804 Series Scaling Presentation Switchers are four input, HDCP-compliant AV scalers that accept a wide variety 
of audio and video formats and provide HDMI and DTP2/XTP/HDBaseT video outputs. This guide provides instructions for an 
experienced user to set up and configure IN1804, IN1804 DI, IN1804 DO, and IN1804 DI-DO scalers. It covers how to perform 
basic operations using the front panel controls and selected Simple Instruction Set (SIS™) commands. 

NOTE:

  For full installation, configuration, and operation details, see the 

IN1804 Series User Guide

 at 

www.extron.com

. For 

information on configuration using the Extron Product Configuration Software (PCS), see the 

IN1804 Series Help

 file within 

the software. 

Installation

Rear Panel Features

The IN1804 series models have different rear panel inputs and outputs as described below. 
Figure 1 shows the IN1804 DI-DO model as an example, because it contains all input and 
output connector types available on the IN1804 series.

• 

IN1804 standard

 — 

Inputs:

 Three HDMI and one DisplayPort. 

Outputs:

 Two HDMI.

• 

IN1804 DI 

— 

Inputs:

 Two HDMI, one DisplayPort, and one RJ-45 twisted pair (with IR 

pass-through). 

Outputs:

 Two HDMI. 

• 

IN1804 DO 

— 

Inputs:

 Three HDMI and one DisplayPort. 

Outputs:

 One HDMI and one 

RJ-45 twisted pair (with IR pass-through).

• 

IN1804 DI-DO

 — 

Inputs:

 Two HDMI, one DisplayPort, and one RJ-45 twisted pair 

(with IR pass-through). 

Outputs:

 Two HDMI and one RJ-45 twisted pair (with IR 

pass-through). 

2

1

1

100-240V ~ 1.3A MAX

50-60 Hz

L

IN R

L OUT R

Tx Rx G

C T

2

C T

3

C T

4

C T

5

C T

6

C T

7

C T

G V+

RS-232

RESET

LA

N

3

4

1B

HDMI/CEC

OUTPUT

S

REMOTE

AUDI

O

CONT

AC

T

/T

AL

LY

INPUTS

Tx Rx G

IR

1A

OVER TP

Tx Rx G

IR

OVER TP

SIG

OUT

LINK

SIG

IN

LINK

A

D

C

E

F

I

K J

M

Q

L

N

B

O

P

G

H

Figure 1. 

Rear Panel Connectors, IN1804 DI-DO 

Mounting and Cabling

Step 1 — Mount the device

a. 

Turn off or disconnect all equipment power.

b. 

Place the scaler on top of a flat surface using the provided rubber feet, mount it under a table using an optional kit for under 
desk mounting, or attach it to a rack shelf using an optional rack shelf-mounting kit (kits are available at 

www.extron.com

). 

Step 2 — Connect inputs

Connect one or more of the following input sources as appropriate:

• 

Connect a DP source to the input 1 DisplayPort connector (see figure 1, 

B

).

• 

Connect HDMI or DVI (with an appropriate adapter) video sources to HDMI input 2, input 3, and input 4 (available on IN1804 
standard and DO models only) connectors (

C

). Securing the HDMI cables with provided LockIt brackets is recommended 

(see the 

IN1804 Series User Guide

 for instructions).

• 

Connect a balanced or unbalanced audio source to the 5-pole captive screw AUDIO IN connector (

N

). See 

Audio Wiring

 on 

page 3 for more information.

A

  AC power connector

B

  DisplayPort input connector

C

  HDMI input connectors

D

  Over TP IR pass-through 

connector for input

E

  TP RJ-45 input connector

F

  TP RJ-45 output connector

G

  Over TP IR pass-through 

connector for output

H

  HDMI output connector

I

  LAN connector

J

  Reset button

K

  Reset LED

L

  Remote RS-232 connector

M

  Analog audio output

N

  Analog audio input

O

  +V port (for tally voltage output)

P

  Ground pin (for contact ports)

Q

  Contact/tally connectors

For information on safety guidelines, regulatory compliances, EMI/EMF compatibility, accessibility, and related topics, see the 

Extron Safety and Regulatory Compliance Guide

 on the Extron website.

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