TV One C3-540 CORIOmaster User manual

Firmware versionM406and above
PDF-C3-5x0-V2.3
Mar 2019
C3-540CORIOmaster™
C3-510CORIOmaster mini™
C3-503 CORIOmaster micro™
CORIOgrapher™V2.7 and above
User Guide V2.3

In this guide
Welcome to tvONE™ Help 1
Get to know your products 2
About your CORIOmaster™ 2
About your CORIOmaster mini™ 4
About your CORIOmaster micro™ 5
About the buttons of your CORIOmaster micro™ 6
About modules 7
Input modules 7
Output modules 7
Audio modules 8
Power supply module 8
Adapters 8
About your Dual stream input module 9
About your S/PDIF and analog audio module 10
What's breakaway audio? 10
About your Encoder-100 11
Hardware recommendations 12
Set it up 13
Quick start 14
Planning and installing video walls 20
Planning a video wall 20
What is a window? 21
What is a preset? 21
Installing video wall hardware 21
Setting up a video wall in CORIOgrapher™ 24
CORIOgrapher™ system requirements 24
About CORIOgrapher™ 24
Getting started with CORIOgrapher™ 25
To connect to your CORIOmaster and get its configuration 25
To log in with secure mode 26
To create a configuration offline 26
To send a configuration to your CORIOmaster 26
Naming input and output ports 27
Naming the input ports of a Dual stream input module 27
Enabling secure mode 28

Creating a video wall 29
Testing your video wall installation 30
Set up and test audio 33
Settings 36
Device settings 37
Naming your CORIOmaster™ 37
Resetting your CORIOmaster™ to factory default settings 37
Choosing your default working units 38
Backing up and restoring your settings 38
Backing up your settings on your CORIOmaster 38
Restoring your settings from your CORIOmaster 39
Backing up your settings to a file on your computer 39
Restoring or copying settings from a file on your computer 40
Problems sharing settings between CORIOmaster units 40
CORIOmaster micro™ settings 41
Configuring the buttons of your CORIOmaster micro™ 41
User settings 43
Creating and editing users 43
What are user roles? 43
Why set a timeout time? 44
Changing other users' passwords 44
Changing your own password 45
Network settings 45
Configuring network settings for your CORIOmaster™ 45
Configuring network settings for streaming media 46
About static IP addresses 46
To configure network settings for streaming media 47
Finding the MAC address of your Dual stream input module 48
Playlist settings 48
Renaming playlists and moving playlists between modules 49
Deleting playlists 49
Encoders and streams settings 50
Managing encoders and streams 50
Use it 52
Presets 52
Creating and editing presets 53
What is a preset? 53
What is included in a preset? 53
What is not included in a preset? 53

For best results 53
Saving presets 55
Editing presets 55
Loading a preset 57
What is a preset? 57
Loading a preset from CORIOgrapher 57
Loading a preset with the buttons of your CORIOmaster micro 57
Changing the source playing in a window 58
Changing the source in CORIOgrapher 58
Changing the source with the buttons of your CORIOmaster micro 58
Changing the source using the dashboard 59
Using audio 59
Playing embedded audio 60
About embedded audio 60
Disabling and enabling audio for a source or display 60
Choosing what to listen to with CORIOgrapher 64
What's breakaway audio? 64
Choosing which outputs play audio 66
Adjusting input audio level and muting sources 66
Muting individual audio outputs 68
Cutting to black and muting individual outputs 69
Adjusting volume and muting all displays and outputs associated with a canvas69
Cutting to black and muting all displays and outputs associated with a canvas 70
Controlling audio from the dashboard 71
Emergency cut to black and mute 72
Playing independent audio with a CORIOmaster micro™ 73
About independent audio 73
Choosing which window to hear with the buttons of the front panel 74
Show me an example 74
Choosing which window to hear with CORIOgrapher 75
Adjusting the input audio level and muting individual sources 75
Muting the audio output 76
Media and streams 77
Playing media and streams 77
Before you start 78
Adding and editing media streams 78
Adding media items, streams, and playlists to your play queue 80
Playing a multicast stream from an Encoder-100 on multiple CORIOmaster
units 81
Changing the duration of media items 82

Playing streams with low latency 83
Using the playback controls 83
Managing the play queue 84
Saving the play queue 85
Playing the play queue automatically 85
Saving media to internal storage 85
Creating and managing playlists 86
About playlists 86
Creating a new playlist 87
Saving the play queue to a playlist 88
Managing and editing playlists 89
Deleting a playlist 91
Moving playlists between modules 91
Deleting all playlists 91
Duplicating playlists 92
Using the internal drive 92
Replacing all items on the internal drive with all items on the USB drive 93
Removing all items from the internal drive 94
Current location 94
Copying a single item or folder to the internal drive 94
Managing media on the internal drive 94
Playing items from the internal drive 95
Choosing the best resolution for your playlist or play queue 96
Understanding the format of resolution 96
How do I know what resolution my media items are? 96
Using the buttons of your CORIOmaster micro™ 98
Changing between preset and source selection mode with your CORIOmaster
micro™ 98
Locking your CORIOmaster micro™ 98
Replacing a module 99
Creating and editing custom resolutions 103
About custom resolutions 104
Custom resolution options 105
Creating and editing custom resolutions 107
Creating a custom resolution from a video standard 108
Copying and editing a standard resolution 110
Deleting a custom resolution 110
Troubleshoot it 111
Checking and updating the CORIOmaster firmware 112
Checking your firmware version and downloading new firmware 112

Updating the firmware 113
I can't see my CORIOmaster™ in the Discovered Devices list 114
I can't log in securely to CORIOgrapher™ 116
The picture keeps coming and going 118
My Dual stream input module keeps overheating 119
The video signal from my Encoder-100 is delayed 120
I can't hear any audio 122
General problems with audio 123
Audio from the Dual stream input module 127
Audio from the S/PDIF output of a CORIOmaster micro 128
If that doesn't work 129
Transitions aren't working smoothly 130
I can't update the firmware of my Dual stream input module 131
CORIOgrapher™ can't find or connect to my Encoder-100 132
General troubleshooting checklist 133
Returning a product for repair 133
What are the minimum requirements for running CORIOgrapher? 134
What's the password for my CORIOmaster™? 134
Can I use HDMI extenders with CORIOmaster™ output modules? 134
How large is the internal storage on a Dual stream input module? 134
How do I find the MAC address of my Dual stream input module? 134
How fast is my connection to the Dual stream input module? 134
Which media formats can I add to a play queue? 134
Can I save my play queue? 135
How do I mute audio? 135
Where would I find the information to create a custom resolution? 135
More 136
What's new in CORIOgrapher™ V2.7 136
Product specifications 137
CORIOmaster™ C3-540 specifications 137
CORIOmaster mini™ C3-510 specifications 139
CORIOmaster micro™C3-503 specifications 141
Dual stream input module specifications 144
Encoder-100 specifications 145
End user license agreement for CORIOgrapher 145
Regulatory compliance for CORIOmaster™, CORIOmaster mini™, CORIOmaster
micro™, Encoder-100, and all modules 148
Contact us 149
Video wall planner 150

PDF-C3-5x0-V2.3 1
Welcome to tvONE™ Help
Welcome to tvONE Help, the place to get help with your:
CORIOmaster™
CORIOmaster mini™
CORIOmaster micro™
CORIOgrapher™
Encoder-100
This document is also available as online help. To open the online help, select in CORIOgrapher and
search, or ask a question.
Meet CORIOmaster
Thanks for buying this CORIOmaster, CORIOmaster mini, or CORIOmaster micro. CORIOmaster connects
to a wide range of sources and displays, and works with CORIOgrapher software to allow you to build
dynamic video walls with an easy-to-use visual interface.
Output up to four video walls to monitors, LED screens, and projectors, including devices that
support 4K
Wide range of inputs, including DVI, SDI, HDBaseT™, 4K, and streaming media
Embedded audio support with CORIOmaster, CORIOmaster mini, and CORIOmaster micro
S/PDIF audio output with CORIOmaster micro
Combination of different size and resolution of displays can be used
Adjustable bezel compensation
Edge blending of projectors
Up-down-cross conversion
Control your video wall with CORIOgrapher, secure IP, or serial connection
Horizontal alignment on analog PC inputs
AMX and Crestron modules available
CORIOmaster: 4RU frame size
CORIOmaster mini: 1RU frame size
CORIOmaster micro: 1RU half rack size, up to two video walls
Meet CORIOgrapher
CORIOgrapher V2.7 is packed with features to help you create and manage your video walls.
Simple, powerful, software interface
Save window configurations as presets and transition between presets
Rotate outputs in 1° increments
Manage streaming media
Use custom resolutions
See your changes instantly with immediate mode
Undo and redo your work
Position your displays and windows with pixel-precision

2tvONE
Get to know your products
Learn about the features and functions of your hardware.
In this section
About your CORIOmaster™ 2
About your CORIOmaster mini™ 4
About your CORIOmaster micro™ 5
About the buttons of your CORIOmaster micro™ 6
About modules 7
About your Dual stream input module 9
About your S/PDIF and analog audio module 10
About your Encoder-100 11
Hardware recommendations 12
About your CORIOmaster™
CORIOmaster connects to a wide range of sources and displays, and works with CORIOgrapher™
software to allow you to build dynamic video walls with an easy-to-use visual interface.
Slots
Your CORIOmaster has 16 slots that can contain input or output modules. You can have up to 14 input
modules and up to 14 output modules. Of the 14 input modules, up to five can be Dual stream input
modules. You can only have one S/PDIF and analog audio module.
In a CORIOmaster, slots 1 and 2 can only contain input modules, and slots 15 and 16 can only contain
output modules. Only slots 4, 8, 5, 1, and 3 can contain Dual stream input modules. Install Dual stream
input modules in the order shown here. Only slot 18 can contain a S/PDIF and analog audio module.
We recommend that you group your modules. Add input modules from slot 1 upwards, and add output
modules from slot 16 downwards.

PDF-C3-5x0-V2.3 3
CORIOmasterrearpanel
Input module (black) Connect to sources
Output module (white) Connect to displays
CPU module
Connect to your network with Ethernet
Optional: connect to serial controller with RS-232
Optional: connect directly to a PC with Ethernet or RS-
232
Optional second PSU, sold
separately Optional: connect to electrical outlet
Sealed slots Not available for use
Power supply unit (PSU) Connect to electrical outlet

4tvONE
About your CORIOmaster mini™
This guide uses the name CORIOmaster to mean CORIOmaster™, CORIOmaster mini™, and
CORIOmaster micro™ systems, unless specifically stated.
Slots
Your CORIOmaster mini has six slots that can contain input or output modules. You can have up to five
input modules and up to five output modules. Of the five input modules, up to two can be Dual stream
input modules.
In a CORIOmaster mini, slot 6 can only contain an input module. Only slots 1 and 2 can contain Dual
stream input modules.
Risk of poor performance
Avoid fitting an input module in slot 4.
CORIOmaster mini rear panel
Power supply unit
(PSU) Connect to electrical outlet
CPU module
Connect to your network with Ethernet
Optional: connect to serial controller with RS-232
Optional: connect directly to a PC with Ethernet or RS-232
Output module (white) Connect to displays
Input module (black)
Connect to sources
Note: slot 6 is a fixed input slot, included with every CORIOmaster
mini.

PDF-C3-5x0-V2.3 5
About your CORIOmaster micro™
This guide uses the name CORIOmaster to mean CORIOmaster™, CORIOmaster mini™, and
CORIOmaster micro™ systems, unless specifically stated.
Slots
Your CORIOmaster micro has three slots that can contain input or output modules. You can have up to
two input modules and up to two output modules.
CORIOmaster micro rear panel
S/PDIF audio output Connect to audio device with RCA
Power supply input Connect to an electrical outlet with PSU
Input module (black) Connect to sources
Output module (white) Connect to displays
CPU module
Connect to your network with Ethernet
Optional: connect to serial controller with RS-232
Optional: connect directly to a PC with Ethernet or RS-232
CORIOmaster micro mounting accessories
You can mount your CORIOmaster micro to a surface, rack, or ONErack system with our mounting
accessories, sold separately. Ask your distributor about:
RM-503-1RK-MOD ONErack mounting module for CORIOmaster micro
RM-503-1RU-DUAL rack mounting kit for one or two CORIOmaster micro units
RM-503-SRF surface mounting kit for CORIOmaster micro

6tvONE
About the buttons of your CORIOmaster micro™
You can use the buttons of the front panel to load presets, choose which window to hear, change the
source playing in a window, and lock the buttons.
By default, the buttons correspond to the first eight presets, sources, or windows in your system. You
can choose which button corresponds to which preset, source, or window.
Read more about mapping the buttons of your CORIOmaster micro on page 41.
The buttons light up different colors depending on the mode and status of your CORIOmaster micro.
Colors of buttons
Buttons
are lit
dimly
orange
The CORIOmaster micro is in preset selection
mode.
Button is
lit more
brightly
The preset corresponding to button 6 is active.
Buttons
are not lit
Buttons 7 and 8 do not have corresponding
presets.
Buttons
are lit
dimly
green
The CORIOmaster micro is in source selection
mode.
Button is
lit more
brightly
The source corresponding to button 2 is playing
in the active window. You hear the audio from
the active window.
Buttons
are not lit
Buttons 7 and 8 do not have corresponding
sources.
Buttons 2
and 3 are
lit red
The buttons of the CORIOmaster micro are
locked.
Selecting the active window
To select the active window, press and hold the button corresponding to that window until it starts
flashing.
Selecting a window to hear
You hear the audio source playing in the active window on the device connected to the S/PDIF output.
To select a window to hear, press and hold the button corresponding to that window until it starts
flashing.
You can play audio on any connected display or device with CORIOgrapher.
Selecting a preset or source
To select a preset or source, press and release the button corresponding to that preset or source.

PDF-C3-5x0-V2.3 7
Changing between preset and source selection mode
Press and hold buttons 1 and 5 until they start flashing.
The buttons change color.
About modules
CORIOmaster™, CORIOmaster mini™, and CORIOmaster micro™ support six types of input module, and
five types of output module. Each module supports specific connections, but our range of adapters
means you can connect almost any type of source or display to your CORIOmaster.
Input modules
Module Product number Connections
4K 30 HDMI input module, two
inputs
CM-HDMI-4K-2IN 2 x HDMI up to
4096x2160@30
HDMI compatible and HDCP
compliant
Universal DVI input module CM-DVIU-2IN 2 x DVI-U (HDCP compliant, and
HDMIcompatible with an
adapater)
HD/SD-SDI input module CM-HDSDI-4IN 4 x HD/SD-SDI using BNC
For co-axial cables
HDBaseT input module CM-HDBT-2IN-1ETH 2 x HDBaseT
For CATx cables
Supports up to 2x4K@30Hz, or
1x4K@60Hz
HDBaseT input module, two
input
CM-HDBT-X-2IN-1ETH 2 x HDBaseT
For CATx cables
Dual stream input module
Read more about the Dual
stream input module on page 9.
CM-AVIP-IN-1USB-1ETH 1 x USB 2.0/3.0
1xEthernet
Output modules
Module Product number Connections
3G-SDI scaled output module CM-3GSDI-SC-2OUT 2 x 3G/HD/SD-SDI using BNC,
with scaling
For co-axial cables
4K30 scaling output module CM-HDMI-4K-SC-1OUT 1 x HDMI up to 4K @30Hz
(UHD)
DVI-I scaled output module CM-DVI-I-SC-2OUT 2 x DVI-I (HDCP compliant)
DVI-U scaled output module CM-DVI-U-SC-2OUT
(Discontinued)
2 x DVI-U (HDCP compliant)

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Module Product number Connections
HDBaseT™ scaled output
module
CM-HDBT-SC-2OUT-1ETH 2 x HDBaseT
For CATx cables
Quad HDMI scaled output
module
CM-HDMI-SC-4OUT 4 x HDMI up to 1080p@60Hz
For CORIOmaster C3-540 only
Audio modules
Module Product number Connections
S/PDIF and analog audio module
Read more about the S/PDIF and
analog audio module on page
10.
CM-AUD-2IN-4OUT Input:
1 x analog and 1 x S/PDIF
Output:
1xanalog and 4 x S/PDIF
Power supply module
Module Product number Connections
Redundant PSU for 4RU series
units
CM-4RPS 1 x IEC power cord
Adapters
You can use our adapters to connect any of the following formats to the DVI modules. Unless stated,
you can use all of these adapters with both DVI-I and DVI-U modules.
Adapter Product number Male connector Female connector
HDMI adapter CMD1941 DVI HDMI
Analog PC adapter ZDH2040 DVI VGA
Analog RGBHV adapter ZDB-2038 DVI Analog RGBHV
YPbPr/YUV adapter ZDR2042 DVI YPbPr/YUV
YPbPr/YUV adapter cable ZDB2044 DVI YPbPr/YUV
YC (S-Video) adapter ZDB2048 DVI-U only 2 x composite video
YC (S-Video) adapter ZDS2046 DVI-U only 4-pin mini-DIN
Composite video adapter ZDC2050 DVI BNC

PDF-C3-5x0-V2.3 9
About your Dual stream input module
The Dual stream input module allows you to decode and play media and images from a USB drive or
internal storage, and video streams from IP sources. Sources include streaming server, and from any
device when used with an IP encoder, such as the Magenta™Encoder-100.
Features
Play two simultaneous channels of media, including IP streams
Play video clips from USB drive up to 4K@30Hz
Play single IP streams up to 100 Mb/s
Play dual IP streams up to 40 Mb/s
Play still images up to 8K
Play streams with low latency
Play media from streaming server
Create and save up to 20 playlists
Primary channel supports up to 4K@30Hz
Secondary channel supports 1080p@60Hz
IP streams up to 1080p@60Hz
Full resolution and frame rate scaling
Start playing media when your CORIOmaster™ starts
Supports USB 2.0 and USB 3.0
16 or 128 GB internal storage
USB
(LED)
Indicates the status of the USB drive. Green means that the USB drive is working correctly.
Red means that the USB drive is over current.
USB3.0
USB2.0
Connect a USB drive to play media directly.
For best results, we recommend using quality USB drives compatible with USB 3.0.
ST1
(LED)
Indicates the status of the card. Green means that the card is working correctly. Red means
that the card is starting, or that there is a problem.
ST2
(LED)
Indicates the status of the module. Green means that the module is working correctly. Red
means that the module is starting, or that there is a problem.
LAN Connect an Ethernet cable to play media over IP.
If any status indicator stays red, restart your CORIOmaster. If that doesn't work, contact tvONE support.
Contact details are at the back of this guide.
Read more about your Dual stream input module in the Dual stream input module Quick Start Guide
QSG-CM-AVIP-IN, or in CORIOgrapher Help.

10 tvONE
About your S/PDIF and analog audio module
You can use Phoenix connectors to connect to a range of audio inputs and outputs.
INPUTS,
ANALOG
Connect an analog audio device.
INPUTS,
S/PDIF
Connect a digital audio device.
OUTPUT 1
S/PDIF
ANALOG
Connect an analog or digital device to play audio from the video wall on canvas 1.
OUTPUT 2 S/PDIF output. Connect a digital device to play audio from the video wall on canvas 2.
OUTPUT 3 S/PDIF output. Connect a digital device to play audio from the video wall on canvas 3.
OUTPUT 4 S/PDIF output. Connect a digital device to play audio from the video wall on canvas 4.
STATUS
(LED)
Indicates the status of the module. Green means that the module is working correctly.
Red means that there is a problem.
If any status indicator stays red, restart your CORIOmaster. If that doesn't work, contact tvONE support.
Contact details are at the back of this guide.
Compatibility
Your S/PDIF and analog audio module is compatible with your CORIOmaster or CORIOmaster mini.
If you have a CORIOmaster micro, you cannot have an S/PDIF and analog audio module, but you can use
the independent S/PDIF audio output.
Supported formats
The S/PDIF and analog audio module supports all audio formats with a frequency of 48 kHz.
Inputs
Your S/PDIF and analog audio module has two inputs, one analog and one digital input.
You can use inputs from the S/PDIF and analog audio module as breakaway audio only.
What's breakaway audio?
Breakaway audio is independent of the windows on your video wall. It doesn't change when the
sources playing in your windows change. The audio is sent to all enabled outputs.

PDF-C3-5x0-V2.3 11
Outputs
Your S/PDIF and analog audio module has four outputs. Each output is locked to a canvas in the wall
editor. Output 1 is locked to canvas 1, output 2 is locked to canvas 2, and so on.
Output 1 has one analog and one S/PDIF digital port. You can send the same output to both ports, but
you cannot send a different output to each port. Because output 1 is locked to canvas 1, only canvas 1
is capable of sending both analog and digital audio.
To choose a canvas, use the selection tool in the bottom-left corner of Wall Editor. The image below
showscanvas1isselected.
Outputs 2-4 each have one digital S/PDIF output.
About your Encoder-100
The Encoder-100 streaming media encoder allows you to stream high quality video and audio from a
range of sources to the Dual stream input module of your CORIOmaster™, CORIOmaster mini™, or
CORIOmaster micro™.
Features
Convert video and audio to high quality digital stream.
High quality, low bandwidth encoding with H.264 compression.
Full 1080p HD support at up to 60frames per second.
Single channel encoder.
Supports streams with low latency.
Supports unicast and multicast streaming.
HDMI video and audio input and output.
Analog audio input and output.
Preview your video signal and stream separately.
Recommendations
For best results, use Gb Ethernet cables and equipment.
In industrial environments, use shielded Ethernet cables.
Shielded Ethernet cables are often marked F/UTP or FTP.

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Encoder-100 rear panel
DC5V Connect to an electrical outlet
LAN Sends encoded signal to your network
Connect to your network with Ethernet
PREVIEW Allows you to preview your encoded signal
Connect to a display with a VGA cable
HDMIOUT Allows you to preview your encoded signal
Connect to a display with an HDMI cable
HDMIIN Receives video and digital audio signal from a source
Connect to a source with an HDMI cable
AUDIOOUT Allows you to preview your audio signal
Connect a speaker with a 3.5mm jack audio cable
AUDIOIN Receives analog audio from a source
Connect a 3.5mm jack audio cable
Read more about the Encoder-100 in the Encoder-100 user guide PDF-ENCODER-100, or in
CORIOgrapher online help.
Hardware recommendations
At tvONE, we design our products to the highest quality standards. To get the best results from our
products, we recommend that you use the best quality connectors, cables, and adapters. Consider the
points below when you choose accessories and position equipment.
For best results with HDMI/DVI, use cables under 15m long, or shorter if you use connection
adapters. If you need to place your products more than 15m apart, use a signal extender.
See our range of signal extenders at tvone.com/signal-extension-systems.
For best results with HDMI, use High Speed or Premium High Speed HDMI cables.
In industrial environments, use shielded Ethernet cables.
Shielded Ethernet cables are often marked F/UTP or FTP. Use shielded Cat 6 cables with HDBaseT
input and output modules and Dual stream input modules.
Use good quality USB drives compatible with USB 3.0.

PDF-C3-5x0-V2.3 13
Setitup
This section contains everything you need to know about installing and setting up your video wall with
CORIOmaster™ and CORIOgrapher™.
In this section
Quick start 14
Planning and installing video walls 20
Planning a video wall 20
Installing video wall hardware 21
Setting up a video wall in CORIOgrapher™ 24
CORIOgrapher™ system requirements 24
About CORIOgrapher™ 24
Getting started with CORIOgrapher™ 25
Naming input and output ports 27
Enabling secure mode 28
Creating a video wall 29
Testing your video wall installation 30
Set up and test audio 33
Settings 36
Device settings 37
Naming your CORIOmaster™ 37
Resetting your CORIOmaster™ to factory default settings 37
Choosing your default working units 38
Backing up and restoring your settings 38
CORIOmaster micro™ settings 41
Configuring the buttons of your CORIOmaster micro™ 41
User settings 43
Creating and editing users 43
Changing other users' passwords 44
Changing your own password 45
Network settings 45
Configuring network settings for your CORIOmaster™ 45
Configuring network settings for streaming media 46
Playlist settings 48
Renaming playlists and moving playlists between modules 49
Deleting playlists 49
Encoders and streams settings 50
Managing encoders and streams 50

14 tvONE
Quick start
This Quick Start Guide gives you an overview of the steps involved in setting up a video wall with your
CORIOmaster™, CORIOmaster mini™, or CORIOmaster micro™ hardware and CORIOgrapher™ software.
1. Plan your video wall. What do you want your video wall to look like? What equipment do you need to
achieve this?
At the back of this guide is a plan that you can fill out.
Read more about planning a video wall on page 20.
Video tearing
Using a mixture of frame rates and/or resolutions can cause video tearing. For best results, make sure all your
displays use the same frame rate.
2. Install your hardware.
a. Position your displays.
b. Connect your displays and sources to your output and input modules. Connect the LAN port of
the CPU module to your network.
OPTIONAL: If you have a CORIOmaster micro™, connect a digital audio device to the S/PDIF
audio output.