Wohler iAM-AUDIO-2 User manual

iAM-AUDIO-2
2RU Multi-Channel Touch Screen Audio Monitor
User Guide
Part Number 821808, Revision I

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Last Update
August 17, 2018

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TAB E OF CONTENTS
Table of Contents
User Guide..........................................................................................1
TABLE F C NTENTS............................................................................3
Table of Contents .............................................................................................3
CHAPTER 1: Installation ........................................................................6
Introduction ....................................................................................................6
verview...............................................................................................6
Safety.............................................................................................................6
Instructions ...........................................................................................6
Safety Symbols......................................................................................7
Mounting...............................................................................................7
Heat Dissipation.....................................................................................7
Sympathetic Vibration.............................................................................8
Mechanical Bracing.................................................................................8
Electrical Interference.............................................................................8
Power ...................................................................................................8
Compliance .....................................................................................................8
FCC ......................................................................................................8
ICES-003 ..............................................................................................9
CHAPTER 2: Local peration ................................................................ 10
Local vs Remote peration ..............................................................................10
Startup .........................................................................................................10
Front Panel ....................................................................................................10
Rear Panel.....................................................................................................12
SFP-2022-6 / SFP-2110 Address Setup .............................................................15
Channel Meters and Touch perations ..............................................................16
Dolby Zoom Screen ........................................................................................17
Menu / ption Touchscreen .............................................................................19
Audio Preset ........................................................................................20
Source Select ......................................................................................21
System Information..............................................................................22
System ptions ...................................................................................23
Network Settings .................................................................................23
Speaker ptions ..................................................................................25
System Update ....................................................................................26
Factory Reset ......................................................................................27
System Reboot ....................................................................................28
CHAPTER 3: Technical Info ................................................................ 29
CHAPTER 4: The iAM-AUDI Web GUI .................................................. 34
Web Browser / Control Device .........................................................................34

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First Time IP Assignments ...............................................................................34
Peer-to-Peer Connection .......................................................................34
Network Connection .............................................................................35
Dashboard.....................................................................................................36
Remote Monitor .............................................................................................37
System Preference .........................................................................................38
Sign In .........................................................................................................39
Configure Presets ...........................................................................................40
Database Management ...................................................................................44
Export Configuration.............................................................................44
Import Configuration ............................................................................45
Database (DB) Save / Restore .........................................................................46
Scan Network - Discovery ...............................................................................47
Network Setup...............................................................................................48
System Setup ................................................................................................49
SFP Status ..........................................................................................50
Factory Reset ................................................................................................51
Reboot System ..............................................................................................52
APPENDIX A: Software Upgrades.......................................................... 53
Introduction ..................................................................................................53
Download the Software ...................................................................................53
Update Methods .............................................................................................53
Local Update from the Front Panel....................................................................54
Updating Via the Web GUI...............................................................................57
Updating an iAM-AUDI Remotely ....................................................................58
Updating Multiple iAM-AUDI Units ..................................................................59
APPENDIX B: Dante Network Setup ...................................................... 62
Introduction ..................................................................................................62
What is in the iAM-AUDI for Dante .................................................................63
Dante
TM
Device Setup .....................................................................................64
Dante Clock Selection .....................................................................................65
Channel Names..............................................................................................65
AES67 ..........................................................................................................66
Device Lock ...................................................................................................67
Dante Firmware Upgrades ...............................................................................68
Dante
TM
Legal Disclosures................................................................................68
APPENDIX C: Ravenna Network Setup .................................................. 69
Introduction ..................................................................................................69
What is in the iAM-AUDI for Ravenna..............................................................69
RAVENNA-Compatible Talker/Listener .....................................................69
AVB Ethernet Features ..........................................................................69
BACH™ Controller Interface...................................................................70
Home Page....................................................................................................71
Configuration/Device Management ...................................................................71
Controller Cloud ..........................................................................................73

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Sync ............................................................................................................74
Source Streams ..........................................................................................75
Stream Destinations ...................................................................................76
Patch Panel .................................................................................................78
Troubleshooting .............................................................................................79
Ravenna Firmware Upgrades ...........................................................................79
APPENDIX D: API Documentation ......................................................... 80
Introduction ..................................................................................................80
API: Presets ..................................................................................................80
Get available presets ............................................................................80
Get preset information ..........................................................................81
Get current active preset.......................................................................87
Preset Activation ..................................................................................87
Setting Mute/Unmute Clusters ...............................................................88
Setting Solo Cluster..............................................................................90
Setting Solo Channel ............................................................................91
Source Select ......................................................................................92
HTTP Routing Table ........................................................................................94
Status Codes .................................................................................................94

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CHAPTER 1: Installation
Introduction
verview
The iAM-AUDI -2 IS A 2RU multichannel multi-source audio monitor with multiple
standard copper connections and multiple SFP module options facilitating high
density coax and optical fiber connections. An optional module will allow decoding
of Dolby D, DD+, and E streams. It has options for VoIP formats including MPEG2/4
TS and SMPTE 2022-6, 3G/HD/SD-SDI, and a growing range of additional I/
options via an SFP interface. Refer to the Specifications section of this manual or
contact Wohler Sales for more information.
The iAM-AUDI is compact and simple to operate. It has touch screen LCD displays
providing high resolution meters, menus and basic monitor controls. Any channel
(or group of channels that are clustered together) from any source stream may be
audibly monitored and summed with the other selected channels to provide flexible
monitoring capabilities.
Setups are created and configured using a web browser over a network connection
to the integral web server of the iAM-AUDI . Setup configurations can easily be
copied to other iAM-AUDI units.
Each iAM-AUDI can be configured with Presets, which are complete monitoring
configurations. Very little about the configurations of those predefined setups can
be changed from the front panel. This prevents less experienced or hurried
operators from making accidental setup changes that could compromise their usage
of the unit. It also reduces operator training to a minimum.
Safety
Instructions
1. Read, keep, and follow all of these instructions; heed all warnings.
2. Do not use this equipment near water.
3. Use only a dry cloth to clean the equipment.
4. Do not block any ventilation openings.
5. Do not install near any heat source such as a radiator, heat register, amplifier, or
stove.
6. Do not attempt to plug the unit into a two-blade outlet (with only two prongs of
equal width).
Important:
By design, this monitor will only plug into a three
-
prong outlet for
your safety. If the plug does not fit into the outlet, contact an
electrician to replace the obsolete outlet.

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7. Protect the power cord from being walked on or pinched, particularly at plug
connection on the equipment and at the socket.
8. Use only the attachments/accessories specified by the manufacturer.
9. Unplug the equipment during lightning storms or when unused for long periods
of time.
10. Refer all servicing to qualified service personnel. Servicing will be required
under all of the following conditions:
a. The equipment has been damaged in any way, such as when the power-
supply cord or plug is damaged.
b. Liquid had been spilled or objects have fallen onto the equipment.
c. The equipment has been exposed to rain or moisture.
d. The equipment does not operate normally.
e. The equipment has been dropped.
Safety Symbols
Mounting
The unit is designed for a standard 19" rack. Install it at ear/eye level for best high
frequency response and visual observation of the display screens. Please adhere to
the following clearances:
Table 1-1: Clearance Recommendations
Clearance Surface
24” Front
3” Rear
2” Sides
1.75” Top and Bottom (if either radiates heat)
0” Top and Bottom (if no heat)
Heat Dissipation
The ambient temperature inside the mounting enclosure should not exceed 40°
Celsius (104° Fahrenheit). Adjacent devices can be rack mounted (or stacked) in
proximity to the unit if this temperature is not exceeded. therwise, allow a 1RU
(1.75”/44.45mm) space above and below the unit for air circulation.
WARNING:
The
symbol to the left warns of electric shock hazard inside the unit.
Disconnect the power cord before removing access panels when
installing upgrades. nly qualified service personnel are to operate
the equipment with covers removed, and are to exercise caution to
avoid personal injury.

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Sympathetic Vibration
Sympathetic vibration from other equipment (cables, etc.) in the rack may be
serious enough to interfere with the unit’s sound quality. If you experience
sympathetic vibrations, use thin card stock, felt, foam, or weather-stripping
between the vibrating surfaces. Tie loose cables securely with cable ties.
Mechanical Bracing
The 2RU chassis is securely attached to the front panel. In addition, the chassis has
mounting tabs through which you attach it to the rack rail. This feature will reduce
or eliminate rear bracing requirements in many mobile/portable applications. The
weight of internal components is distributed fairly evenly around the unit.
Electrical Interference
Be careful to avoid mismatched cable types and other similar causes of undesired
reflections in digital signal systems. If severe enough, such reflections can result in
corruption of the digital data stream. As with any audio equipment, maximum
immunity from electrical interference requires the use of shielded cable; however,
satisfactory results can sometimes be obtained without it. The internal circuitry
ground is connected to the chassis.
Power
The unit comes with a standard external 18 VDC / 3.9 A power supply that connects
to an AC mains power source (100 to 240 VAC, 1.5A, 50/60Hz) using an IEC power
cord.
When the mains plug or appliance coupler is used as the disconnect device, the
disconnect device should remain operable.
Compliance
FCC
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
peration of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at
their own expense.
Important
:
Heat generated by the class D power amplifiers, power supplies,
and other components is vented by slots in the sides and back of
the unit. Therefore, as a safety precaution, you must allow proper
ventilation on these surfaces.

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ICES-003
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du
Canada.

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CHAPTER 2: ocal Operation
ocal vs Remote Operation
The iAM-AUDI can be operated locally or remotely. Locally, all of the monitoring
functions are available, as well as a limited set of programmable options, as
described in this chapter. It may be operated remotely in two ways, via the Wohler
Web GUI or by third party equipment via Application Programming Interface (API)
commands. The Wohler Web GUI is described in Chapter 4 of this manual. The API
commands are described in Appendix D of this manual.
Startup
The iAM-AUDI unit will begin its startup process when it is connected to power
through its external power supply. There is no power switch. It is normal for the
product to require about two and a half minutes to start up and be ready to use.
When the iAM-AUDI unit completes its startup, the Power indicator will turn
green. Depending upon optional settings, all channel clusters will either be in the
muted condition or set in a predetermined way. You may then use the Mute, Un-
Mute or Solo capabilities to enable only the program channels you want to hear.
Front Panel
The front panel is shown in Figure 2-1.
Figure 2–1: iAM-AUDI -2 Front Panel
Level Meter DisplayVolume Menu / Option Display Balance
Headphone
Jack USB
Po er
Speakers Adjust / Aux Volume
Main Menu
Audio
Preset
System
Information
System
Options
Source
Select
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1. Speakers: Local near field audio monitoring is achieved through the use of class D
amplifiers. There are two (left/right) full range speakers. The speaker response
may be adjusted with tone controls. Refer to the Menu / Option Touchscreen
section of Chapter 2.