Wohler iAM-12G-SDI User manual

iAM-12G-SDI
2RU, 4K/12G Multi Channel, Touch Screen
Audio/Video Monitor
U er Guide
Part Number 821827, Revision G

Page 2
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Wohler Technologies, Inc.
1280 San Luis Obispo Ave
Hayward, CA, 94544
Phone: [phone]
Web: www.wohler.com
Sales: [e-mail]
Support: [email protected]
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Even though Wohler Technologies, Inc. has tested its equipment and software, and reviewed the
documentation, Wohler Technologies, Inc. makes no warranty or representation, either express or
implied, with respect to software, documentation, their quality, performance, merchantability, or
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In no event will Wohler Technologies, Inc. be liable for direct, indirect, special, incidental, or
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even if advised of the possibility of such damages.
Some states do not allow the exclusion or limitation for incidental or consequential damages, so the
above exclusion or limitation may not apply to you.
Other Technologies and Products
Dolby and Dolby ATMOS are registered trademarks of Dolby Laboratories, Inc.
Google Chrome is a registered trademark of Alphabet Inc.
Microsoft Windows and Internet Explorer are registered trademarks of Microsoft Corporation.
emSET is a registered trademark of Embrionix.
Dante and Brooklyn are registered trademarks of Audinate Pty Ltd.
Ravenna is a registered trademark of ALC NetworX GmbH.
ZMAN and Aneman are registered trademarks of Merging Technologies.
All product names, logos, and brands are property of their respective owners. All company, product
and service names used in this document are for identification purposes only. Use of these names,
logos, and brands does not imply endorsement.
Last Update
July 27, 2021

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TABLE OF CONTENTS
Table of Content
User Guide ........................................................................................ 1
TABLE F C NTENTS .......................................................................... 3
Table of Contents ........................................................................................... 3
CHAPTER 1: Installation....................................................................... 7
Introduction .................................................................................................. 7
verview ............................................................................................ 7
Safety .......................................................................................................... 7
Instructions ......................................................................................... 7
Safety Symbols.................................................................................... 8
Mounting............................................................................................. 8
Heat Dissipation................................................................................... 9
Sympathetic Vibration........................................................................... 9
Mechanical Bracing ............................................................................... 9
Electrical Interference ........................................................................... 9
Power ................................................................................................. 9
Compliance ................................................................................................... 9
FCC.................................................................................................... 9
ICES-003 .......................................................................................... 10
CHAPTER 2: Local peration............................................................... 11
Startup....................................................................................................... 11
Front Panel.................................................................................................. 11
Rear Panel................................................................................................... 13
SFP-2022-6 / SFP-2110 Address Setup............................................................ 19
Channel Meters and Touch perations............................................................. 20
Dolby Monitoring Screens .............................................................................. 24
Dolby Zoom Screen ............................................................................ 24
Dolby MetaData ................................................................................. 29
Dolby ED2 Stream Selection and Decoding............................................. 31
Dolby Preset Monitoring Screen ............................................................ 32
Dolby
®
ATM S Visualizer Screen .......................................................... 33
Menu / ption Touchscreen ........................................................................... 35
Menu................................................................................................ 36
Audio Meters ..................................................................................... 36
Source Select .................................................................................... 37
Presets ............................................................................................. 38
Preset Favorites ................................................................................. 39
All Presets ......................................................................................... 40
Loudness Meter.................................................................................. 41
Loudness Settings .............................................................................. 43
System ptions.................................................................................. 44
Dolby Settings ................................................................................... 45

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Network Settings................................................................................ 49
utput Configuration .......................................................................... 51
Speaker ptions................................................................................. 52
Meter Scales...................................................................................... 53
App Settings...................................................................................... 55
System Software Update ..................................................................... 56
System Reboot .................................................................................. 57
Factory Reset .................................................................................... 58
System Information............................................................................ 59
CHAPTER 3: Technical Info ............................................................... 61
CHAPTER 4: The iAM-12G-SDI Web GUI............................................... 66
Web Browser / Control Device........................................................................ 66
First Time IP Assignments ............................................................................. 66
Peer-to-Peer Connection...................................................................... 66
Network Connection............................................................................ 67
Dashboard .................................................................................................. 68
Preset Management...................................................................................... 71
Preset Input Routing........................................................................... 71
Dolby Presets .................................................................................... 76
Phase Indicators by Preset................................................................... 79
utput Routing by Preset .................................................................... 80
utput Routing ............................................................................................ 81
Destination utputs............................................................................ 82
Source Inputs .................................................................................... 83
utput ptions .................................................................................. 83
Typical Questions Regarding utput Routing .................................................... 84
What signal outputs can be controlled using the utput Routing feature? ... 84
How do the outputs behave in their factory default settings? .................... 84
What is the difference between Global utput Routing and utput Routing in
Presets?............................................................................................ 84
How do I route whatever is being monitored to the Analog XLR outputs?.... 84
How do I have a downmixed pre-fade output on Analog DB-25 Pair-1
combined with a post-fade output on the Analog XLRs?............................ 85
How do I make the XLR outputs follow the Audio Meter screen Solos and
Mutes while the Analog DB-25 Pair-1 does not? ...................................... 85
The Global utput Routing feature works great. But what if we don't want to
create any Presets and want to monitor audio only using Source Select? How
would I configure different outputs for Source Select choices? .................. 86
How do I keep the internal speakers muted and have audio only on the
analog XLR outputs? ........................................................................... 86
How do I ensure that the outputs are automatically muted when the
Headphone jack is inserted?................................................................. 86
How do I ensure that my outputs are pre-faded but follow the solo-mutes?
This will allow us to monitor only the unmuted/solo Audio Meter channels on
amplified stereo speakers connected to the Analog XLR’s. ........................ 87
Preset Replication......................................................................................... 88
Remote Monitor ........................................................................................... 90
Audio Meters ..................................................................................... 90
Dolby Metadata.................................................................................. 91
System Setup.............................................................................................. 96
System Information............................................................................ 96
SFP Information ................................................................................. 97

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Licenses............................................................................................ 99
Configuration: Management IP Address ..........................................................100
Configuration: System Preferences ................................................................101
Loudness Configuration ......................................................................101
Phase Indicator Configuration .............................................................103
Dolby Settings ..................................................................................104
Configuration: Import/Export Presets .............................................................106
Export Configuration..........................................................................106
Import Configuration .........................................................................107
System: Factory Reset.................................................................................109
System: Reboot System...............................................................................110
APPENDIX A: Software Upgrades........................................................111
Introduction ...............................................................................................111
Download the Software ................................................................................111
Update Methods..........................................................................................111
Local Update from the Front Panel .................................................................112
Updating via the Web GUI using a Flash Drive .................................................114
Updating an iAM-12G-SDI Remotely ..............................................................116
Updating Multiple Units Remotely ..................................................................118
APPENDIX B: Dante Network Setup ....................................................121
Introduction ...............................................................................................121
What is in the iAM-12G-SDI for Dante ............................................................122
Dante
TM
Device Setup ..................................................................................123
Dante Clock Selection ..................................................................................124
Channel Names...........................................................................................124
AES67 .......................................................................................................125
Device Lock................................................................................................126
Dante Firmware Upgrades ............................................................................127
Dante
TM
Legal Disclosures.............................................................................127
APPENDIX D: Ravenna (ZMAN) Setup .................................................128
Introduction ...............................................................................................128
What is in the iAM-12G-SDI for Ravenna ........................................................128
RAVENNA-Compatible Talker/Listener...................................................128
AVB Ethernet Features .......................................................................128
Configuring the A IP Merging ption Card......................................................129
Getting Started | General Settings .......................................................130
Getting Started | PTP.........................................................................131
Getting Started | Session Sources........................................................132
Getting Started | Session Sinks ...........................................................133
Getting Started | Session Info .............................................................134
Getting Started | Ins/ uts ..................................................................135
Getting Started | I/ Router ...............................................................135
peration: .................................................................................................136
Connecting Remote Source to Local Sink ..............................................136
ZMAN Session Sinks ..........................................................................136
ZMAN Session Sources.......................................................................138
ZMAN Updating.................................................................................138

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APPENDIX E: API Documentation .......................................................139
Introduction ...............................................................................................139
API: Presets ...............................................................................................139

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CHAPTER 1: In tallation
Introduction
verview
The iAM-12G-SDI is a 2RU multichannel multi-source audio/video monitor with
multiple standard copper connections and multiple SFP module options facilitating
high density coax and optical fiber connections. The iAM-12G-SDI includes dual 12G
SDI SFP inputs and it can monitor 12G/3G/HD/SD-SDI video and audio from the
selected one.
An optional module allows decoding, monitoring, and metering of Dolby
®
ATM S, E,
DD+, and D from SDI, SMPTE 2110, SMPTE 2022-6, and AES streams. For those
who do not at the present time require Dolby
®
ATM S decoding, another optional
module is available to decode, monitor, and meter Dolby
®
E, DD+, and D from SDI,
SMPTE 2110, SMPTE 2022-6, and AES streams .
Loudness of programs can be monitored using the ITU-R BS.1770-3 standard, and
over/under visual loudness alarms can be set.
The iAM-12G-SDI has options for VoIP formats including SMPTE 2022-6,
3G/HD/SD-SDI, and a growing range of additional I/ options via SFP interfaces.
Refer to the Specifications section of this manual or contact Wohler Sales for more
information.
The iAM-12G-SDI is compact and simple to operate. It has touch screen LCD
displays providing high resolution meters, menus and basic monitoring controls.
Any channel (or group of up to 16 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-12G-SDI. Level and Loudness metering may
also be monitored using the integral web server.
Each iAM-12G-SDI 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.

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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).
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)
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.
I
mportant:
By design, the supplied AC mains power cord will only plug into a
three-prong grounded 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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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.
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
Both the 1RU chassis and the 2RU chassis are 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 connects to an AC mains power source (100 to 240 VAC, 1.5A, 50/60Hz)
using a supplied 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
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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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.
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: Local Operation
Startup
The iAM-12G-SDI unit will begin its startup process when it is connected to power.
There is no power switch. It is normal for the product to require about a minute to
start up and be ready to use.
When the iAM-12G-SDI 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 touch the meter clusters on
the screen to mute, unmute, or solo channel clusters as needed.
Front Panel
The front panel is shown in Figure 2-1.
Figure 2–1: iAM-12G-SDI Front Panel
1. Speaker : 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 Speaker Option section of this
chapter.
2. Video Di play: The selected SDI video signal is monitored on this screen.
3. Headphone Jack: A 1/4" jack for an optional headphone is provided on the front
panel. Speaker audio optionally mutes when headphones are plugged in.
4. Volume: This controls the speaker and headphone output level for the entire mix.
Pressing the knob alternately mutes and unmutes the speaker audio. As you rotate
the knob, the Monitor Info box at the top center of the screen temporarily changes
to an indicator of the Volume setting:

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5. Balance: This controls left/right levels for the stereo mixes. By default, it controls
loudspeaker and headphone output. As you rotate the knob, the Monitor Info box at
the top center of the screen temporarily changes to an indicator of the Balance
setting:
6. Adju t A Knob: This control can be rotated to move the orange Loudness
Selection bracket from channel cluster to channel cluster. The Loudness indication
then displays the loudness of the selected cluster. Pressing the Adju t A knob
causes the Monitor Info display to show either the selected input source or the
video mode of the incoming signal. It can also have other purposes, depending
upon the needs of various screens and menus.
7. Adju t B Knob: Turning this control right or left moves a white selection box from
channel to channel on the metering screen. Pressing the Adju t B control solos the
selected channel. If a muted channel is selected with this control, it is unmuted and
soloed. Pressing the Adju t B control again or touching the meter area anywhere
removes the channel solo. n units equipped with the Dolby Decode option, if the
Adju t B control is used to select a Dolby stream and then pressed, the Dolby
Zoom feature will activate and display the channels within the Dolby signal, as well
as Dolby MetaData.
8. USB 2.0 Port: This USB Type A connector allows you to use a flash drive (not
supplied) to perform software updates and copy system configurations to another
iAM-12G-SDI or to a PC. Software updates are accomplished from the Web GUI.
9. Level Meter : High resolution bar graph meters appear here showing the levels of
up to 16 channels selected for monitoring. These can be grouped into clusters as
specified in the Web GUI: mono clusters (1.0), pair clusters (2.0), or surround
sound clusters. This screen will respond to touch control of audio Mute, Unmute and
Solo. Access to the Menu screens is also available on this screen. The meter display
is temporarily replaced when menu access is needed. These menus are used for
setup and status display.
10. Pha e Indicator : There is one Phase Indicator per channel pair. It is dark green
when the channels are in phase and bright red when they are out of phase. Using
the Configuration | Sy tem Preference | Pha e Indicator Configuration tab
in the Web GUI, you may determine which channel pairs should have a Phase
Indicator and which shouldn't, for example, because they contain unrelated signals.
11. Loudne : The Loudness of the selected channel cluster is displayed here. Use the
Adjust A knob to select the channel cluster to be monitored.
12. Monitor Info: Generally, the name of the current Input Source is displayed here.
The SDI signal format, HDR detection, or other channel setup information may
alternatively be displayed by pressing the Adju t A knob.
13. Menu: Touch to reveal the Menu. Refer to the Menu / Option Touch creen
section of this chapter.
14. Power: This indicator lights green when the system is powered and ready for use.
A solid or blinking red or yellow color indicates that the product is starting up.

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Rear Panel
The rear panel is shown in Figure 2-2.
Figure 2-2: iAM-12G-SDI Rear Panel Layout
1. AC Power IEC Plug: The AC inlet is a standard IEC receptacle for 100 to
240 VAC ±10%, 50/60 Hz power connection. Four regional AC power
cords, supplied according to shipping region, are available.
2. DC Power Jack: An additional DC power inlet is provided for backup
power, if needed. This could be an external AC to 24V DC 4A power
adaptor or a 24V battery. This connection is by means of a locking DC
connector. This is a 4-pin connector, but only two pins are used. The
pinout is shown on the back panel and in Figure 2-3.
Figure 2-3: Backup Power Connector Pinout
Important:
By design, the supplied AC mains power cord will only plug into a
three-prong grounded outlet for your safety. If the plug does not fit
into the outlet, contact an electrician to replace the obsolete outlet.

Page 14
3. Network Port: The MGMT Ethernet port can connect to either a LAN or
to a PC to let you customize the iAM-12G-SDI configuration remotely. The
Wohler Web GUI is described in Chapter 4 of this manual.
4. 12G/3G/HD/SD-SDI Input : Two inputs are provided to interface to a
range of video signal inputs up to UHD 4K resolution. The internal
monitoring screen displays the video at 480 x 272 resolution.
5. 12G/3G/HD/SD-SDI Output: The selected 12G/3G/HD/SD-SDI input or
from any selected 3G/HD/SD-SDI SFP module input is reproduced on this
output.
6. 12G/3G/HD/SD SFP Input Module Cage : These two SFP Input cages
are provided to accept 12G/3G/HD/SD optional SFP modules compatible
with SDI coaxial or optical signals. Single or dual transceiver
arrangements are possible. The SFP modules are hot swappable for
convenience. An optional license key must be purchased to enable each
module. A software license must be installed for an SFP port to function.
Contact Wohler Technical Service to install software licenses. The
following SFP modules are compatible with these inputs:
a. SFP-2110 EMBER+ (829086): This is a SMPTE 2110 EMBER+
receiver that can receive streams up to 3G. It uses Multi-Mode 850
NM, LC fiber connectors. It allows the iAM-12G-SDI to monitor SDI
audio transmitted in real time over Ethernet. You must use the
emSET configuration software to set up this option. It is available
from Wohler Technologies Technical Service.
b. SFP-2110 NMOS (829086-1): This is a SMPTE 2110 NM S
receiver that can receive streams up to 3G. It uses Multi-Mode 850
NM, LC fiber connectors. It allows the iAM-12G-SDI to monitor SDI
audio transmitted in real time over Ethernet. You must use the
emSET configuration software to set up this option. It is available
from Wohler Technologies Technical Service.
c. SFP-2022-6 (829088): This is a SMPTE 2022-6 receiver that can
receive streams up to 3G. It uses Multi-Mode 850 NM, LC fiber
connectors. It allows the iAM-12G-SDI to monitor SDI audio
transmitted in real time over Ethernet. You must use the emSET
configuration software to set up this option. It is available from
Wohler Technologies Technical Service.
d. SFP-2110 EMBER+ & 2022-6 (829087): This is a SMPTE 2110
EMBER+ or 2022-6 receiver that can receive streams up to 3G. It
uses Multi-Mode 850 NM, LC fiber connectors. It allows the iAM-
12G-SDI to monitor SDI audio transmitted in real time over
Ethernet. You must use the emSET configuration software to set
up this option. It is available from Wohler Technologies Technical
Service.
e. SFP-2110 NMOS & 2022-6 (829087-1): This is a SMPTE 2110
NM S or 2022-6 receiver that can receive streams up to 3G. It
uses Multi-Mode 850 NM, LC fiber connectors. It allows the iAM-

Page 15
12G-SDI to monitor SDI audio transmitted in real time over
Ethernet. You must use the emSET configuration software to set
up this option. It is available from Wohler Technologies Technical
Service.
f. SFP-SDI (829089): This is a 3G/HD/SD-SDI Single Video Receiver
with Active Loopback that can receive streams up to 3G. It uses
HD-BNC connectors.
g. SFP-12G-SDI-FIBER (829160): This is a 12G/3G/HD/SD-SDI
single-mode optical receiver. It uses LC fiber connections.
h. SFP-SDI-FIBER (829084): This is a 3G/HD/SD-SDI Video SFP
receiver with optical input that can receive streams up to 3G. It
uses LC fiber connectors. It is a Single-Mode Receiver, Medium
Haul, Non-MSA, and has no output. It handles video only.
7. 3G/HD/SD SFP Input Module Cage : These two SFP Input cages are
provided to accept optional SFP modules compatible with 3G/HD/SD SDI
coaxial or optical signals. Single or dual transceiver arrangements are
possible. The SFP modules are hot swappable for convenience. An optional
license key must be purchased to enable each module. A software license
must be installed for an SFP port to function. Contact Wohler Technical
Service to install software licenses. The following SFP modules are
compatible with these inputs:
a. SFP-2110 EMBER+ (829086): This is a SMPTE 2110 EMBER+
receiver that can receive streams up to 3G. It uses Multi-Mode 850
NM, LC fiber connectors. It allows the iAM-12G-SDI to monitor SDI
audio transmitted in real time over Ethernet. You must use the
emSET configuration software to set up this option. It is available
from Wohler Technologies Technical Service.
b. SFP-2110 NMOS (829086-1): This is a SMPTE 2110 NM S
receiver that can receive streams up to 3G. It uses Multi-Mode 850
NM, LC fiber connectors. It allows the iAM-12G-SDI to monitor SDI
audio transmitted in real time over Ethernet. You must use the
emSET configuration software to set up this option. It is available
from Wohler Technologies Technical Service.
c. SFP-2022-6 (829088): This is a SMPTE 2022-6 receiver that can
receive streams up to 3G. It uses Multi-Mode 850 NM, LC fiber
connectors. It allows the iAM-12G-SDI to monitor SDI audio
transmitted in real time over Ethernet. You must use the emSET
configuration software to set up this option. It is available from
Wohler Technologies Technical Service.
d. SFP-2110 EMBER+ & 2022-6 (829087): This is a SMPTE 2110
EMBER+ or 2022-6 receiver that can receive streams up to 3G. It
uses Multi-Mode 850 NM, LC fiber connectors. It allows the iAM-
12G-SDI to monitor SDI audio transmitted in real time over
Ethernet. You must use the emSET configuration software to set
up this option. It is available from Wohler Technologies Technical

Page 16
Service.
e. SFP-2110 NMOS & 2022-6 (829087-1): This is a SMPTE 2110
NM S or 2022-6 receiver that can receive streams up to 3G. It
uses Multi-Mode 850 NM, LC fiber connectors. It allows the iAM-
12G-SDI to monitor SDI audio transmitted in real time over
Ethernet. You must use the emSET configuration software to set
up this option. It is available from Wohler Technologies Technical
Service.
f. SFP-SDI (829089): This is a 3G/HD/SD-SDI Single Video Receiver
with Active Loopback that can receive streams up to 3G. It uses
HD-BNC connectors.
g. SFP-SDI-FIBER (829084): This is a 3G/HD/SD-SDI Video SFP
receiver with optical input that can receive streams up to 3G. It
uses LC fiber connectors. It is a Single-Mode Receiver, Medium
Haul, Non-MSA, and has no output. It handles video only.
8. SFP Output Module Cage: This SFP cage is provided to accept an
optional SFP utput module compatible with SDI coaxial or optical
signals. Single or dual transceiver arrangements are possible. The SFP
modules are hot swappable for convenience. An optional license key must
be purchased to enable the module. A software license must be installed for
an SFP port to function. Contact Wohler Technical Service to install
software licenses. The following SFP modules are offered:
a. SFP-SDI-OUTPUT (829083): 3G-SDI Transmitter module; HD-
BNC connectors; Audio and Video utput (video output at
1080p60) are from the monitored source.
b. SFP-HDMI-OUTPUT (829155): HDMI/DVI SFP; Video output at
1080p60 from the monitored source as well as two Audio Channels.
9. Balanced Analog DB-25 Output : These DB-25 female connectors
output 16 channels of +10dBu broadcast level balanced audio. The source
of these signals is the monitored audio channels as shown on meters 1 -
16. Tascam cables may be used, and can be purchased by contacting
Wohler Sales. Refer to Figure 2-4 for the pinout of this pair of connectors.
The Balanced Analog DB-25 Output are standard on the iAM-12G-
SDI.
Note: PCM channels marked as data channels (such as those containing
encoded Dolby streams) are automatically muted from being sent out to the
external amplifier and speakers.
Note: When these outputs are used to connect to an external amplifier and
speakers, the external amplifier should be muted whenever the iAM-12G-SDI
is being powered up or powered down.

Page 17
Figure 2-4: Analog DB25 utput and Input Connections
10. Balanced Analog Output Pair: These male XLR connectors provide two
balanced analog outputs: Left and Right. The source of these signals is
the mix of audio as monitored by the internal speakers. The Balanced
Analog Output Pair is standard on the iAM-12G-SDI.
Note: PCM channels marked as data channels (such as those containing
encoded Dolby streams) are automatically muted from being sent out to the
external amplifier and speakers.
Note: When these outputs are used to connect to an external amplifier and
speakers, the external amplifier should be muted whenever the iAM-12G-SDI
is being powered up or powered down.
Figure 2-5: Analog XLR utput Connections

Page 18
11. AES Input : This HD-15 connector is used to connect up to four AES
inputs. Refer to Figure 2-6 for the pinout of this connector. The easiest
way to interface with this connector is to use an HD-15 to VGA adaptor
cable. Channels are selected as AES 1-8.
Figure 2-6: AES HD-15F Connector Pinout
12345
678910
1112131415
AES Pairs
1234
12. MADI / ANLG / TOS Option Module: A variety of inputs are contained
in this module:
a. MADI BNC: This C AX input accepts an AES10 64-channel signal
at a 48 kHz sample rate. The C AX output is reclocked from the
MADI source. When power to the iAM-12G-SDI is not present, the
C AX input and output are automatically connected together to
allow the MADI signal to pass through.
b. MADI Fiber SFP: This SFP cage is for an optional SFP input
module which accepts an optical AES10 64-channel MADI input
signal at 48 kHz sample rate. A software license must be installed
for the SFP port to function. Refer to the System Setup section in
Chapter 4 to install software licenses.
c. Balanced Analog Input : This DB-25 female connector inputs 8
channels of up to +10dBu broadcast level balanced audio. Tascam
cables may be used, and can be purchased by contacting Wohler
Sales. Refer to Figure 2-4 (Pairs 1 – 4) for the pinout of this
connector. Channels are selected as Analog 1-8.
d. Primary and Secondary AoIP: Primary and Secondary Gigabit
Ethernet interfaces are provided for use with for Dante64 or
Ravenna64 / AES67 processing options.
e. TOSLINK Optical Input: This provides an optical stereo pair
input.

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SFP-2022-6 / SFP-2110 Addre Setup
While the optional SFP-2022-6 and SFP-2110 modules monitor program audio
created from distinctly different technologies, both are connected to the network in
the same way and have the same requirements for addressing. Up to 3G SDI is
supported by these modules. Figure 2-7 illustrates the network connections they
need.
Figure 2-7: SFP-2022-6 and SFP2110 Network Diagram
The optional SFP-2022-6 or SFP-2110 module furnished by Wohler Technologies is
manufactured by Embrionix and comes from the factory with a default IP address.
To integrate it into your digital network, you need to set its address to the source to
be monitored. You must use the emSET configuration software to set up this option.
It is available from Wohler Technologies Technical Service. The procedure to
accomplish this is described in the SFP-2022-6 / SFP-2110 Setup Guide (part
number 821822), which is available at ftp://ftp.wohler.com/Download-from-
Wohler/DoNotDelete/Emset .

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Channel Meter and Touch Operation
The audio mixer terminology of “solo” is used in this manual when referring to
muting all but a specific audio channel or subgroup. Since the terms “group” and
“subgroup” have different meanings in SDI vs. pro audio, this manual uses the term
“cluster” to define a set of audio channels forming an audio program—such as Mono
(1.0), Stereo (2.0) or Surround (5.1 or 7.1).
Audio meters are displayed on the touchscreen display in labeled clusters, as shown
in Figure 2-8. The clusters of channels and other options relating to this are defined
using the iAM-12G-SDI Web GUI software as described in Chapter 4.
Figure 2-8: Audio Level Meter Screen
1. Channel Identifier : Above the level meters are the Channel Identifiers.
They indicate the following:
An arrow pointing to the left indicates that this is a left channel and
will be monitored in the left speaker.
An arrow pointing to the right indicates that this is a right channel
and will be monitored in the right speaker.
Important:
The numbers for each meter bar graph position only indicate its relative
position on the display, and not any particular channel number. Meter
numbers only serve as references for monitor configurations at the Web
GUI level.
1
2