Yamaha Rio3224-D2/Rio1608-D2 I/O Rack

Safety Precautions

Please read these instructions carefully before operating the unit and keep them for future reference.

Important Safety Instructions

• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

Explanation of Graphical Symbols

Lightning flash with arrowhead symbol: Intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

Exclamation point symbol: Intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

Cautions

• To avoid personal injury or damage to the unit, please observe the following basic precautions.
• Power/Power Cord: Always grasp the plug, not the power cord, when unplugging the power cord from the unit or power outlet. Pulling the power cord directly may damage it.
• Placement: Do not place the unit in an unstable location. Ensure proper ventilation; do not block vents. Avoid placing the unit in corrosive or salty air. Disconnect all cables before moving. If rack-mounting, follow EIA standards and ensure adequate airflow.
• Handling: Do not insert fingers or foreign objects into any openings. Do not place heavy objects on the unit. Avoid excessive force when operating buttons or plugs. Do not pull connecting cables.
• Moisture: Do not use near water or in damp environments. Do not place containers with liquids on the unit. If liquid enters the unit, immediately disconnect power and have it serviced by qualified personnel. Do not handle the power cord with wet hands.
• Listening to Music: Before connecting to other equipment, turn off all power and set all volume controls to minimum. When turning on the AC power for an audio system, always turn on the power amplifier last. When turning off, turn off the power amplifier first.
• Fire Hazard: Do not place flammable materials near the unit or expose it to open flames.
• Abnormal Conditions: If any of the following occur, immediately turn off the power, unplug the cord, and contact qualified service personnel: worn or damaged power cord/plug, unusual smells or smoke, objects dropped into the unit, sudden sound interruption, cracks or damage to the unit.
• Servicing: Do not attempt to service the unit yourself. Refer all servicing to qualified service personnel.

Introduction

Thank you for choosing the Yamaha Rio3224-D2/Rio1608-D2 Input/Output Rack. This unit is a Dante-compatible input/output rack for mixing systems. The Rio3224-D2 is an input/output rack with 32 analog inputs, 16 analog outputs, and 8 AES/EBU outputs. The Rio1608-D2 is an input/output rack with 16 analog inputs and 8 analog outputs. This manual explains the settings and troubleshooting procedures required by mixing engineers and operators when setting up or preparing a mixing system. To fully utilize the functions of this product, please read this owner's manual before use. After reading, please keep it for future reference.

Note:

• When the technical specifications for the Rio3224-D2 differ from those of the Rio1608-D2, specifications applicable only to the Rio1608-D2 are indicated in brackets (e.g., [INPUT] jacks 1-32{1-16}).
• Unless otherwise specified, illustrations in this manual use the Rio3224-D2.
• When technical specifications apply to both the Rio3224-D2 and Rio1608-D2, they are referred to collectively as "Rio-D2".
• The RIVAGE PM, CL, and QL series units can control the preamplifiers via a communication protocol that allows redundant connection. These units are referred to as "supported digital mixing consoles" in this manual. On the other hand, the TF series, Nuage, MTX, and R Remote units can control the preamplifiers via a communication protocol that does not allow redundant connection. In this manual, these are collectively referred to as "supported devices," including "supported digital mixing consoles."

Features

Dante Network Function

Using standard Ethernet cables with the Dante network protocol, low-latency, low-jitter audio can be transmitted between devices, up to a maximum distance of 100 meters*. The Rio-D2 can be used as a versatile Dante I/O interface. It supports sample rates of 44.1kHz, 48kHz, 88.2kHz, and 96kHz. This unit supports AES67 for audio network interoperability and can connect audio to various compatible audio networks via AES67.

* Maximum transmission distance may vary depending on the cable used.

Display and Encoder for Enhanced Visibility and Operability

The front panel features an organic EL display and encoders with buttons and switches. Parameters such as internal preamp and HPF can be viewed and controlled via the Rio-D2. Internal errors and status of the unit are clearly displayed on the screen.

Remote Control of Internal Preamplifiers

Internal preamp parameters can be remotely controlled by supported devices.

Digital Output (Rio3224-D2 Only)

The Rio3224-D2 is equipped with XLR-3-32 type balanced connectors, enabling digital audio input via AES/EBU format.

Gain Compensation Function

If the Gain Compensation function is activated on a supported device (such as RIVAGE PM, CL, or QL series) or R Remote, fluctuations in analog gain will be compensated by the Rio-D2's internal digital gain. The audio signal will be output at the gain level to the Dante network, with the gain level fixed before the Gain Compensation function is enabled. For example, this means that if the same output is shared by FOH and monitor, changing the FOH gain will not affect the balance of the monitor mix.

Redundant Power Supply

Dual power supplies provide continuous operation in the unlikely event of a problem with one power supply unit.

Quiet Operation

Quieter operation is achieved by incorporating noise reduction measures for the fan.

Firmware Update

This product's firmware can be updated to improve operability, add functions, and resolve potential issues. The following two types of firmware are available for this unit:

• Device Firmware
• Dante Module Firmware

For details on firmware updates, please refer to the following URL:

http://www.yamahaproaudio.com/

For information on updating and setting up this unit, please refer to the firmware update guide provided on the website.

Note: When updating Dante firmware on this unit, ensure that the firmware of other connected Dante-compatible devices is also updated.

Controls and Functions

Front Panel

1 [INPUT] Jacks 1-32{1-16}: These jacks are XLR-3-31 type balanced input jacks. Input levels range from -62 dBu to +10 dBu. +48V phantom power can be supplied to required devices via the input jacks.

2 [+48V] Indicator: These indicators light up when +48V phantom power is turned on for the corresponding input channel. Turning on/off can be controlled from the front panel display of this unit or from a compatible digital mixing console. However, if the [+48V MASTER] switch is off, phantom power will not be supplied even if the phantom power for individual channels is turned on (the +48V indicator will flash). If this unit has a serious error, all channel indicators will light up or flash.

Caution:

• If phantom power is not required, you must turn off the [+48V MASTER] switch or the phantom power setting.
• When turning on phantom power, ensure that no other devices (such as condenser microphones) are connected to the corresponding INPUT jacks. Applying phantom power to devices that do not require it may damage the connected devices.
• When connecting or disconnecting devices to the INPUT jacks while phantom power is on, do so carefully. Doing so improperly may cause malfunctions in the connected devices or the unit itself.
• To prevent potential damage to speakers, turn off the power amplifiers and/or active speakers when turning phantom power on or off. Also, it is recommended to turn the output volume knobs of all digital mixing consoles to the minimum when turning phantom power on or off. Sudden level peaks caused by the switching operation can damage the equipment and the audience.

3 [SIG] Indicator: These indicators light up green when the signal level for each channel reaches or exceeds -40 dBFS. If this unit has a serious error, all channel indicators will light up or flash.

4 [PEAK] Indicator: These indicators light up red when the signal level for the corresponding channel reaches or exceeds -3 dBFS. If this unit has a serious error, all channel indicators will light up or flash.

5 Display: Displays parameters for each port, such as preamp settings, or error and status indicators.

6 ◀(DEC) / ▶(INC) Buttons: Use these buttons to move the cursor on the display.

7 Encoder with Switch: Rotate to edit parameter values displayed on the screen. Press the encoder to select or confirm settings, or to switch displays.

8 Power Indicator: Lights up when the AC power to this unit is turned on.

9 Power Switch: Turns this unit on or off.

Caution: Even when the power is turned off, a small amount of current flows through the product. If you do not plan to use the product for an extended period, be sure to unplug the power cord from the AC outlet.

Note: Repeatedly turning the power on and off quickly can damage the unit. After turning off the power, wait about 6 seconds before turning it on again.

10 [+48V MASTER] Switch: This is the main switch for the unit's +48V phantom power. If the [+48V MASTER] switch is off, phantom power will not be supplied to the unit's input jacks, even if the phantom power for individual inputs is set to ON. In this case, the [+48V] indicator for the channels with phantom power turned on will flash.

11 [AES/EBU OUT] Jacks 1/2-7/8 (Rio3224-D2 Only): These XLR-3-32 type balanced jacks allow the unit to send digital audio signals in AES/EBU format from the corresponding output channels. Each jack can output a two-channel digital audio signal.

12 [OUTPUT +4dBu] Jacks 1-16 {1-8}: These XLR-3-32 type balanced jacks allow the unit to send analog audio signals from the corresponding output channels. The nominal output level is +4 dBu.

Note: If you must connect the unit's balanced output to an unbalanced device, ensure that the magnetic polarity of each device is matched, as differences in magnetic polarity may cause malfunctions. For cables connecting to unbalanced devices, connect pin 3 (COLD) to pin 1 (GND).

Rear Panel

13 [PRIMARY]/[SECONDARY] Jacks: These etherCON (RJ45) ports can be connected to other Dante devices using Ethernet cables (CAT5e or recommended cables), such as RIVAGE PM, CL, QL, or TF series units. If the SETUP menu's SECONDARY PORT parameter is set to DAISY CHAIN, signals input from one port will be sent to the next port. Refer to "Daisy Chain Network" in the "Connections" section (page 25) for more information on daisy chain networking. If the SETUP menu's SECONDARY PORT parameter is set to REDUNDANT, the [PRIMARY] port is used for the primary connection, and the [SECONDARY] port is used for the secondary (backup) connection. If, for any reason (such as cable damage or accidental disconnection, or network switch failure), the [PRIMARY] port of this unit cannot send signals, the [SECONDARY] port will automatically take over the connection. Refer to "Redundant Network" in the "Connections" section (page 25) for more information on redundant networks.

Note:

• It is recommended to use Ethernet cables with Neutrik etherCON CAT5e compatible RJ-45 connectors. Standard RJ45 connectors can also be used.
• STP (Shielded Twisted Pair) cables are recommended to prevent electromagnetic interference. Ensure reliable connection between the metal part of the connector and the STP shield using conductive tape or a similar method; conductive performance must be good.
• Only connect Dante-compatible devices or GbE-compatible devices (including computers).

14 [LINK/ACT] Indicator: These green indicators show the connection status of the [PRIMARY] and [SECONDARY] jacks. They will flash rapidly if the Ethernet cable is connected correctly.

15 [1G] Indicator: These indicators flash when the Dante network is operating in Giga-bit network mode.

16 DIP Switches: These switches are for future functional expansion. Currently, no functions are assigned to these DIP switches.

17 AC Power Input: Connect the AC power cord here. First, connect the power cord to the unit, then connect the power cord to the AC outlet. The power cord features a special locking mechanism (V-LOCK) to prevent accidental disconnection. Insert the power cord fully until it locks. Caution: Ensure the unit's power is turned off when connecting or disconnecting the power cord. Press the lock release on the plug when disconnecting the power cord.

Display Operation

Operation Flow

In the Rio-D2, you can set various parameters displayed in each menu using the front panel display, ◀(DEC) button, ▶(INC) button, encoder, and switches.

• Menu names are displayed on the left edge of the display.
• Parameter values for each menu are displayed in the center of the display.
• The unit's status is displayed as icons on the right edge of the display.

Menu Structure

The menus displayed on the left edge of the display have the following structure. Press the ◀(DEC) and ▶(INC) buttons as appropriate to select menu items.

Selecting Menu Items:

• To select the next menu, press and hold the ◀(DEC) button for about 1.5 seconds or longer, then press the ▶(INC) button.
• To select the previous menu, press and hold the ▶(INC) button for about 1.5 seconds or longer, then press the ◀(DEC) button.

Parameter Display: Parameter values for each port are divided into 3 areas (Upper Line, Middle Line, Lower Line).

METER Menu

You can select a port by pressing the ◀(DEC) or ▶(INC) button. The LED for the selected port (+48V/SIG/PEAK or output SIG) will light up for 1 second. A white frame cursor indicates the corresponding port. If there is no operation on the front panel for 10 seconds, the white frame cursor disappears. Pressing the ◀(DEC) or ▶(INC) button again moves the white frame cursor to the previous port position. Long-pressing the ◀(DEC) or ▶(INC) button allows you to jump to the first port of every 8 ports.

GAIN, +48V ON, HPF ON, HPF F, and GC ON Menus

You can select an input port or status by pressing the ◀(DEC) or ▶(INC) button. Output ports cannot be selected. The parameter display area for the selected input port will be highlighted, and the LED (+48V/SIG/PEAK) for the selected input port will light up for 1 second. If there is no operation on the front panel for 10 seconds, the highlighted indication will disappear. Pressing the ◀(DEC) or ▶(INC) button again moves the white frame cursor to the previous port position. Long-pressing the ◀(DEC) or ▶(INC) button allows you to jump to the first port of every 8 ports.

About Port Names

METER Menu: Port names displayed on the upper half of the screen can be modified using Dante Controller. Up to 31 characters can be assigned to each input or output port.

GAIN, +48V ON, HPF ON, HPF F, and GC ON Menus: Port names displayed on the upper line of the screen can be modified using Dante Controller. Up to 31 characters can be assigned to each input or output port. However, this menu can display a maximum of 5 characters for port names. If more than 6 characters are specified, "..." will be displayed after the 4th character.

METER Menu (Level Meter Display)

Input port level meters are displayed on the left, and output port level meters are displayed on the right. The upper half of the display shows icons for the selected port's +48V ON, HPF ON, and GC ON status.

Viewing Level Meters:

• When the input or output is -3 dBFS or greater.
• When the input or output is greater than -18 dBFS and not exceeding -3 dBFS.
• When the input or output is greater than -60 dBFS and not exceeding -18 dBFS.

Note: PEAK HOLD is always on, but you can clear the PEAK for each port by pressing the encoder switch.

Preamplifier (HA) Gain Setting

Rotate the encoder switch to adjust the HA gain value for the selected port. The gain can be adjusted in 1 dB increments within the range of -6 dB to +66 dB.

+48V ON Menu

Displays the +48V parameter for all input ports (Upper line: Port name, Lower line: +48V ON status), and the port names and status of the unit for all output ports. In this menu, you can turn the phantom power (+48V) for each input port on or off.

Phantom Power (+48V) Setting

Rotate the encoder switch to turn the phantom power (+48V) for the selected port on or off. If the value is changed, the display area for the currently selected parameter will flash. Pressing the encoder will finalize the setting, and the flashing will stop. If you move the cursor while the parameter display area is flashing, the change will be discarded, and the flashing will stop. Similarly, if you switch menu selections while the parameter display area is flashing, the change will also be discarded.

HPF ON Menu

Displays the HPF parameter for all input ports (Upper line: Port name, Middle line: HPF cutoff frequency, Lower line: HPF ON status), and the port names and status of the unit for all output ports. In this menu, you can set the HPF on/off status for each input port.

HPF On/Off Setting

Rotate the encoder switch to turn the HPF for the selected port on or off. If the value is changed, the display area for the currently selected parameter will flash. Pressing the encoder will finalize the setting, and the flashing will stop. If you move the cursor while the parameter display area is flashing, the change will be discarded, and the flashing will stop. Similarly, if you switch menu selections while the parameter display area is flashing, the change will also be discarded.

HPF F Menu

Displays the HPF parameter for all input ports (Upper line: Port name, Middle line: HPF ON status, Lower line: HPF cutoff frequency), and the port names and status of the unit for all output ports. In this menu, you can set the HPF cutoff frequency for each input port.

HPF Cutoff Frequency Setting

Rotate the encoder switch to change the HPF cutoff frequency for the selected port within the range of 20.0 Hz to 600.0 Hz.

GC (Gain Compensation) ON Menu

Displays the GC parameter for all input channels (Upper line: Port name, Middle line: Compensation gain value when GC is ON; HA gain value when GC is OFF, Lower line: GC ON status), and the port names and status of the unit for all output ports. In this menu, you can set the GC on/off status for each input port.

GC On/Off Setting

Rotate the encoder switch to turn the GC for the selected port on or off. If the value is changed, the display area for the currently selected parameter will flash. Pressing the encoder will finalize the setting, and the flashing will stop. If you move the cursor while the parameter display area is flashing, the change will be discarded, and the flashing will stop. Similarly, if you switch menu selections while the parameter display area is flashing, the change will also be discarded.

Status Indicators

The status area on the upper line of each menu displays the Dante device label. The lower line displays ERROR/INFORMATION icons and shows corresponding information only when an ERROR/INFORMATION status occurs.

Note: If multiple ERROR/INFORMATION statuses occur, the status with the highest priority will be displayed. Device labels can be assigned using Dante Controller. Assign device labels as follows:

• Do not change the first 5 characters of "Y0##-" (where ## is the UNIT ID). Even if you attempt to change them, they will be forcibly corrected to "Y0##-".
• Up to 31 characters can be used.

When the cursor is moved to the status display and the encoder switch is pressed, the unit version, SYSTEM/SYNC information, and ERROR status (SYSTEM/SYNC Information) will be displayed as shown below. Pressing the encoder again returns to the menu screen. For a list of SYSTEM/SYNC information, refer to the "SYSTEM/SYNC Information" table in the "Troubleshooting" section (page 29).

SETUP Menu

Displays the current values of the unit's settings.

Selecting a Setting Item: Press the ◀(DEC) or ▶(INC) button to select a setting item. The parameter value for the selected item will be highlighted. If there is no operation on the front panel for 10 seconds, the highlight will disappear. You can switch screens by long-pressing the ◀(DEC) or ▶(INC) button.

Setting Parameter Values: Rotate the encoder switch to select the parameter value for the selected item. If the value is changed, the display area for the currently selected parameter will flash. Pressing the encoder will finalize the setting, and the flashing will stop. If you move the cursor while the parameter display area is flashing, the change will be discarded, and the flashing will stop. Similarly, if you switch menu selections while the parameter display area is flashing, the change will also be discarded.

Parameter Table

The following table shows selectable items, parameter descriptions, and settable values (* indicates default value).

Only when NETWORK MODE is set to STATIC IP can IP ADDRESS, SUBNET MASK, and DEFAULT GW be modified. If set to AUTO, the current settings can only be displayed, not modified.

If Dante Device Lock is enabled in Dante Controller, the UNIT ID or SECONDARY PORT settings related to Dante cannot be changed. To change these settings, disable Dante Device Lock using Dante Controller.

Status Bar

The status bar on the right side of the display indicates the status of the Rio-D2 unit with icons.

Icons: The following 6 types of icons are displayed.

• ERROR: Displays the ERROR icon or INFORMATION icon. If both ERROR and INFORMATION occur simultaneously, ERROR will be displayed preferentially. If neither ERROR nor INFORMATION occurs, nothing is displayed.
• INFORMATION: If ERROR or INFORMATION occurs, the content is displayed on the second line of the status display area in each HA screen. For details on the content, refer to "Information" (page 28).
• MUTE: Displays the MUTE icon when muted (all ports).
• DAISY CHAIN: If the SECONDARY PORT parameter is set to DAISY CHAIN, the DAISY CHAIN icon is displayed. If muted (all ports) and the SECONDARY PORT parameter is set to DAISY CHAIN, the MUTE icon takes priority.
• PANEL LOCK: Displays the LOCK status. If panel lock is enabled, the PANEL LOCK icon is displayed.
• HA READ ONLY: If HA Read Only is specified, only the HA READ ONLY icon is displayed to indicate read-only status. If panel lock is enabled and HA Read Only is specified, the PANEL LOCK icon takes priority. If panel lock is not enabled or HA Read Only is not specified, nothing is displayed.

About HA Read Only: This function allows HA parameters to be changed only by supported digital mixing consoles (e.g., RIVAGE PM, CL, or QL series). When HA Read Only is ON, HA parameters or HA Read Only settings cannot be changed on this unit. Furthermore, this function is set when this unit is synchronized with a supported digital mixing console, or when operating this unit after synchronization. Once HA Read Only is ON, the HA Read Only setting will be maintained until the unit is restarted, even if the connection to the supported digital mixing console is interrupted.

Note: Even when HA Read Only is ON, settings in the SETUP menu of this unit can be changed. To turn off HA Read Only, you must perform the operation from a supported digital mixing console or restart this unit.

INFORMATION Menu

Displays various information about the unit.

Selecting Items and Viewing Detailed Information: Press the ◀(DEC) or ▶(INC) button to select an item. If there is no operation on the front panel for 10 seconds, the highlight will disappear. Pressing the encoder switch will display detailed information for the selected item. Rotate the encoder to scroll through the content up or down.

Item List: The following items can be viewed.

Dante Domain Manager (DDM) Support (V1.10 or Later)

Note: Rio-D2 requires firmware V1.10 or later to register a domain name with DDM.

INFORMATION – DANTE Screen:

When registering a domain name: The DDM indicator is displayed at the top right of the DANTE screen. An R/W or R/O indicator is also displayed, depending on the LOCAL CONTROLLER ACCESS setting of the DDM server.

When a domain name is registered: If the local setting is "Read Only", changing Dante settings (UNIT ID, SECONDARY PORT) on the Rio-D2 unit will cause the following pop-up message to appear.

When a domain name is registered and the unit is not connected to a DDM server, the DISC indicator will also be displayed in the upper right corner of the screen.

INFORMATION – REPORT Screen:

Domain Registration:

• DDM_CONNECT_STATE: Displays the connection status to the DDM server on the network. CONNECTED: The unit is connected to a DDM server on the network. DISCONNECTED: No DDM server is available on the network.
• DDM_DOMAIN_KIND: Displays the registration status of the DDM domain name. DOMAIN: DDM domain name is registered. UNMANAGED: DDM domain name is not registered.
• DDM_DOMAIN_UUID: Displays the UUID for the domain name when registering a DDM domain name. When the unit is not registered with a domain name, FF-FF-FF-FF-FF-FF-FF-FF-FF-FF-FF-FF-FF-FF-FF-FF is displayed.
• DDM_LOCAL_ACCESS: Displays the access status of the unit's Dante settings (including DANTE PATCH settings). READ_WRITE: Editable. READ_ONLY: Not editable.
• DDM_REMOTE_ACCESS: Displays the status of accessing Dante settings of external Dante devices. OPERATOR: Editable (However, operation of the Rio-D2 unit is not available). GUEST: Readable, not editable. NONE: Not readable, not editable.

Other Functions

Initialize to Factory Settings

If you press and hold the ◀(DEC) and ▶(INC) buttons simultaneously while turning on the power, you can enter a mode to restore the unit's settings to factory defaults. This is the same as selecting INITIALIZE → FACTORY PRESET in the SETUP menu.

Initialize HA Parameters

If you press and hold only the ◀(DEC) button while turning on the power, you can enter a mode to restore HA parameter values to factory defaults. This is the same as selecting INITIALIZE → HA PARAMETERS in the SETUP menu.

Initialize Dante Parameters

If you press and hold only the ▶(INC) button while turning on the power, you can enter a mode to restore Dante parameter values to factory defaults. This is the same as selecting INITIALIZE → DANTE SETTINGS in the SETUP menu.

Factory Setting Defaults

The following table shows the factory setting defaults.

*1 The default sample rate is 96 kHz. Please be careful when combining Rio-D2 with devices that do not support 96 kHz (such as CL or QL series).

*2 nnnnnn is the last 6 digits of the Dante MAC address.

Panel Lock

While operating this unit, you can enter panel lock mode by simultaneously pressing and holding the ◀(DEC) button, ▶(INC) button, and the encoder switch for approximately 3 seconds. This status will be maintained even after restarting the unit. To disable panel lock mode, simultaneously press and hold the ◀(DEC) button, ▶(INC) button, and the encoder switch for approximately 3 seconds.

Brightness Adjustment

While operating this unit, press and hold the ◀(DEC) button and the ▶(INC) button for at least 1.5 seconds, then rotate the encoder switch to adjust the display brightness (BRIGHTNESS).

Connections

There are two ways to connect the Rio-D2 to a Dante network.

Note:

• Daisy chain connection is suitable for simple systems with a small number of devices. For connecting a large number of devices, please use a star network.

Daisy Chain Network

A daisy chain is a connection scheme where multiple devices are connected in sequence. This method simplifies networking and does not require a network switch. If you are connecting a large number of devices, you must set a high redundancy level to avoid audio dropouts caused by increased signal transmission delay between devices. If a connection in the daisy chain network is broken, the signal flow will be interrupted at that point, and no signal will pass through that point.

Star Network

In a star network, each device is connected to a central switch. Using a GbE-compatible network switch, you can configure large-bandwidth, large-scale networks. We recommend using network switches that support control and monitoring networks, and other features (such as QoS, which can assign priority to data streams - such as word clock synchronization or audio transmission on certain data loops). This technology is generally used for redundant networks, which can eliminate the impact of unexpected network issues on the stability of audio or data transmission.

Redundant Network

A redundant network consists of two loops: a primary and a secondary. Generally, the network operates on the primary loop. However, if the primary connection is interrupted, the secondary loop will automatically take over the connection. Therefore, using redundant networks with star topology can improve the stability of data exchange related to daisy chain networks.

Preamplifier Control

Dante Network Settings and Audio Routing

The Rio-D2 does not have functions to change Dante network settings such as sample rate, latency, or encoding. Dante network settings are controlled by Dante Controller or supported digital mixing consoles. For detailed information on Dante network settings, please refer to the owner's manuals of the respective supported digital mixing consoles.

The audio input and output of multiple Dante devices can be freely routed within the Dante network. This means that settings are required to specify the destination for each channel's signal transmission. Use Dante Controller to specify Dante network and audio routing settings.

The Dante Controller software can be downloaded from the following URL:

http://www.yamahaproaudio.com/

For details on Dante Controller, please refer to the Dante Controller owner's manual on the same website.

Remote Control

The Rio-D2's preamplifiers can be remotely controlled by host devices, such as compatible Yamaha digital mixing consoles.

Monitor and Control Preamplifier Parameters

The following parameters can be monitored and controlled:

Troubleshooting

Error Messages

Warning Messages

Warning Messages (Continued)

Technical Specifications

General Specifications

*1. Total harmonic distortion measured with a 18dB/octave filter at 80kHz.

*2. Hum & noise measured with an A-weighting filter.

*3. Crosstalk measured with a 30dB/octave filter at 22kHz.

Analog Input Characteristics

*1. XLR-3-31 type interface is balanced. (1=GND, 2=HOT, 3=COLD)

*2. Rio3224-D2 only

* In these specifications, 0dBu=0.775Vrms.

* +48V DC power (phantom power) is supplied to INPUT XLR type jacks via individual software control switches.

Analog Output Characteristics

*1. These switches set the maximum output level within the unit.

*2. XLR-3-32 type interface is balanced. (1=GND, 2=HOT, 3=COLD)

*3. Rio3224-D2 only

* In these specifications, 0dBu=0.775Vrms.

Digital I/O Characteristics

Digital Output Characteristics

*1. Rio3224-D2 only

*2. XLR-3-32 type interface is balanced. (1=GND, 2=HOT, 3=COLD)

Dimensions

Rio3224-D2

Rio1608-D2

* The contents of this manual are the latest technical specifications at the time of publication. Please download the latest version of the owner's manual from the Yamaha website.

Company Information

Yamaha Pro Audio Global Website: http://www.yamahaproaudio.com/

Yamaha Downloads: http://download.yamaha.com/

Manual Development Group
© 2017 Yamaha Corporation

Issued July 2019 CSES-C0