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A10-RACK
User Manual
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Audio A10-RACK User Manual

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A10-RACK
4-Slot Wireless Enclosure
— User Guide —
Fits Most Unislot and Superslot™ Receivers
A10-RACK User Guide

Copyright / Doc Rev History Info

Copyright © 2018 Audio Ltd. All rights reserved. | www.audioltd.com
7 Century Court, Tolpits Lane, Watford WD18 9RS, UK | info@audioltd.com
Revision Date Description
1A 11 Sept 2018 Initial - Publication 1B 27 Sept 2018 Added info to Operation and A10-RX Firmware Update sections 2A Nov 2018 Added info on User Groups

Table of Contents

Key Features. . . . . . . . . . . . . . . . . 3
Compatible Receivers. . . . . . . . . . . . 3
Legal Notices. . . . . . . . . . . . . . . . . . 10
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A10-RACK User Guide

Overview

The A10-RACK is a 4 slot, 8 channel, 1RU wireless microphone receiver enclosure, compatible with most Unislot and SuperSlot™ receivers. The A10-RACK accepts up to 4 dual-channel slot-in receivers, providing a total of 8 separate audio feeds. The A10-RACK provides high-quality an­tenna distribution, power distribution, up to 8 channels of analogue and/or AES digital audio via XLR-M connectors and an 8 channel Dante audio interface.
ª Slot-in receivers are sold separately.

Key Features

• Dante audio network integration for up to four Superslot compatible wireless mic receivers (eight audio channels), such as Audio Limited’s A10-RX, as well as some models by Wisycom and Lectrosonics.
• Antenna distribution with 12V power for active antennas and pass-through for a second A10­RACK (for a total of 16 audio channels)
• Powering distribution via 4-pin XLR-M socket, 10-18VDC
• Analogue or AES outputs via eight XLR-M sockets on rear panel
• Each receiver can be set to output analogue or AES individually (if supported by receiver)
• Simultaneous analogue / AES and Dante outputs
• Secondary Ethernet port for Dante redundancy or daisy-chaining second A10-RACK
• USB-B port for updating RX rmware via Mic2Wav app
• 470-694MHz front-end RF lter bandwidth
• 1RU chassis size with adjustable rack ears to set required depth

Compatible Receivers

The A10-RACK ts slot-in receivers with maximum dimensions of:
• Slot height: 18mm (0.71 inches)
• Slot width: 68.3mm (2.69 inches)
• Width between SMAs: 84.4mm (3.32 inches)
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A10-RACK User Guide

Panels: Connectors, Controls and More

1
Figure 1: Full Front Panel of A10-RACK
3
Figure 2: Closeup of Leftmost Slot on Front Panel of A10-RACK
1 -Four Receiver Slots
Each slot accepts one (single- or dual­channel) 25-pin SuperSlot or unislot receiver. The connection provides power to the receiver and connects the receiver’s audio output directly to the appropriate rear panel XLR connector and to the Dante interface.
1
2
2 -Antenna Distribution Leads
SMA cables (included) are used to connect receivers to the A10-Rack antenna distribution system.
3 -Rack Ears
(One of two pictured) Used for mounting A10-Rack chassis to a 19-inch rack.
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A10-RACK User Guide
1
2
Figure 3: Full Back Panel of A10-RACK
1 -Antenna Inputs
Antenna inputs via two 50 Ohm BNC sockets. 12V DC bias supply available to power active antennas.
2 -Antenna Loop Through A/B Out
BNC connectors provide auxiliary outputs as
a passive loop through to a second A10-Rack.
3 -Analogue/AES
Eight XLR-M connectors are used to transmit either analogue or AES digital audio in channel pairs, per slot according to the setting of the particular slot receiver.
4
3
5
6
4 -Service
USB-B connector used for A10-RX rmware
updates
5 -Dante PRI/SEC
RJ45 Dante network connections. PRI for primary non-redundant network connection, SEC for secondary redundant network connections.
6 -DC IN Connector
A10-Rack is powered with a standard 4-pin XLR-F 10-18VDC power supply.
ª Dante audio will always be present regardless of analogue
or AES selection.

Rack Mounting

The A10-RACK is a 1RU, 19-inch standard chassis size unit. When mounted in a rack, the rack
ears, shown in Figures 1, 2 and 3 may be installed in any one of three possible positions to allow
the user to set the depth of the front of the A10-RACK to accommodate a rack door or cover.
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A10-RACK User Guide

Powering

The Power switch on the front panel is a three-way switch.
2
13
5
4
Figure 4: Closeup of Leftmost Slot on Front Panel of A10-RACK
1 -ON +
A10-Rack power on with 12V power at the A and B antenna connectors.
2 -OFF
A10-Rack power o.
3 -ON
A10-Rack power on with no bias power at the A/B antenna connectors.
4 -Antenna Power Indicator
LED illuminates yellow when bias power is being provided to A and B antennas.
ª If yellow LED does not illuminate when switch is in
PWR+ANT position, a short-circuit fault condition is present on either A or B antenna inputs.
5 -Power Indicator
LED illuminates green when A10-Rack is powered on.
The A10-RACK is powered with a standard 4-pin F-XLR 10-18vdc power supply (sold separately), such as the Sound Devices XL-WP4. Power to A10-RACK needs to be capable of
providing 3A minimum for proper powering of the A10-RACK and the slot receivers.
Ground (Pin 1)
Power (Pin 4)
Figure 5: Closeup of Rightmost end of Back Panel of A10-RACK
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A10-RACK User Guide

Dante

Digital Audio Network Through Ethernet, better known as Dante, is a combination of software, hardware, and network protocols that delivers uncompressed, multi-channel, low-latency digital audio over a standard Ethernet network using Layer 3 IP packets. Dante allows for many chan­nels of high-quality audio to be transferred via basic CAT5 or CAT6 cable and standard gigabit switches and hardware to many devices simultaneously. This makes Dante especially attractive for the user of the A10-RACK because all eight channels of audio from the wireless receivers can be transported over a single CAT5 network cable.
Additionally, Dante allows for true networking where the signal can be sent to many destinations
without degradation or extra hardware. The Dante network is managed by Dante Controller, a PC
or MAC application that allows for routing of signals from Dante network transmitters to receiv­ers and monitoring of the various settings of any Dante network.
For more details and to download the Dante Controller, visit Audinate’s website at:
https://www.audinate.com/products/software/dante-controller

Installing Receivers

The A10-RACK is compatible with most unislot and Superslot receivers.
ª See Compatible Receivers for more information.
To install slot receivers do the following::
1. Use specic spacer as needed to set the proper receiver depth for the A10-RACK slot.
2. Using the included M3 screws, attach the receiver’s spacer to the A10-RACK.
3. Observe the DB25 connector orientation inside of the slot opening in the A10-RACK, as well as the DB25 connector orientation on the rear of the slot receiver that you want to install. You will want to ensure proper alignment as you insert the receiver.
4. Carefully slide the slot receiver into spacer and into the slot. Press until you feel the DB25
connector seat fully and the receiver is ush to the spacer.
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A10-RACK User Guide
5. Install the included M2.5 screws to hold the receiver into place.
6. Attach the antenna distribution leads from the A10-RACK to the receiver’s antenna connectors

Operation

Operation of the A10-RACK is virtually the same as operating each receiver individually with
the exceptions of shared power, antenna distribution and Dante networking. Each receiver can
have either analogue or AES output on the XLR outputs (if the receiver supports this feature), while simultaneously sharing its output(s) on the Dante interface.
Receiver Settings
Audio Limited A10 Main Menu > Outputs > Max Level = +2dBu
Lectrosonics Setup > Level = -6
Setup > Phase = +
Wisycom MCR-42S Menu > Advanced > Line Mode = Analog
Menu > Advanced > Edit RX1/RX2 > Audio Out > Line max lev = 0dBu Menu > Advanced > Edit RX1/RX2 > Sig Phase = 0°
ª The xed 16dB analog gain stages are very low noise - such that they maintain the full
dynamic range of the receiver outputs. It is intended that the receivers' outputs are set for +2dBu output and left unchanged. There is no noise or dynamic range penalty with this topology.
To operate the A10-RACK:
1. Connect power supply to the A10-RACK.
2. Connect antennas to the A10-RACK.
3. Connect XLR cables for analogue/AES output as needed.
4. If using a Dante network, connect the A10-RACK to the network using a shielded Cat5e cable.
5. Power on either using “ON+ ” for active antennas or using “ON” for passive.
6. If Dante is required, open the Dante Controller application on a PC or Mac connected to the same Dante network as the A10-RACK.
7. Dante Controller automatically discovers, identies, and displays any devices including the
A10-RACK connected to the Dante network. Use the routing matrix in the Dante Controller
to route the A10-RACK audio channels to the desired Dante receivers.

Updating RX via A10-RACK

Firmware for A10-RX receivers may be updated via the A10-RACK. For more information, see the A10-RX User Guide.
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A10-RACK User Guide

Cascading A10-RACK Units

If two or more A10-RACKs are cascaded via ‘A/B Out’ loop through, it is recommended that
the slots in the rst rack with antennas connected are lled up before the slots in the 2nd (or next level) are lled - this is good RF practice and will achieve best performance.
The Dante ports may also be daisy-chained if the A10-RACK is not setup for redundant opera­tion (set to “switched” in Dante Controller).

Operational Block Diagram

Specications
Frequency range • 470-694 MHz
Maximum number of receiver slots • 4
Maximum number of channels • 8
Active distribution
amplier bandwidth
Antenna inputs • 2 x BNC 50 ohm
Aux RF outputs • 2 x BNC 50 ohm
Rack powering • 10–18 Volts DC, 3 Amps via 4 pin XLR male socket
Audio outputs • 8 x 3-pin XLR-M analogue and or AES
Dante Output • 2 x RJ45 to provide Dante™ primary and secondary
Output level • +18 dBu maximum
Audio frequency response • 20-20,000Hz ± 1 dB
Service port • USB type B
Size • 1RU high 19-inch frame
Dimensions (H x W x D) • 442 mm x 210 mm x 45 mm (without rack ears)
Weight (without receivers) • 3.6 kg
• 224 MHz, with phantom powering for active antennas – 12 V, 200 mA
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A10-RACK User Guide

Legal Notices

FCC Notice
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.
FCC Part 15.19(a)(3)
Industry Canada Notice
This Class B digital apparatus complies with Canadian ICES-003. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.
Declarations of Conformity
Hereby, Audio Ltd declares that the radio equipment type A10-RACK is in compliance with Low
Voltage Directive 2014/35/EU, EMC Directive 2014/30/EU, and RoHS Directive 2011/65/EU.
The full text of the EU Declaration of Conformity and full text of the Supplier Declaration of Conformity for US are available at the following internet address: www.audioltd.com/DoC
WEEE Statement
If you have purchased a Sound Devices/Audio Ltd product in the EU and are intending to discard these products at the end of their useful life, please do not dispose of them with your other household or municipal waste. Sound Devices/Audio Ltd has labelled its branded electronic products with the WEEE Symbol to alert our customers that
products bearing this label should not be disposed of in a landll or with municipal or
household waste in the EU.
For further information, contact Audio Ltd or your local distributor
Copyright © 2018 Audio Ltd. All rights reserved. | www.audioltd.com
7 Century Court, Tolpits Lane, Watford WD18 9RS, UK | info@audioltd.com
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