DNTBOB 88
8x8 Breakout Box
TECHNICAL DATA
• 8 balanced line level analog inputs
• 8 balanced line level analog outputs
• Dante
TM
primary and secondary ports
• 8 Dante network outputs
• 8 Dante network inputs
• Uses standard ethernet hardware
• Gigabit compatible
• AVB ready
BOB 88 is a high quality, general purpose interface to
transmit and receive line level analog audio signals via
a Dante network. Analog inputs are converted to digital
and appear on the network as transmit channels. Audio
for the analog outputs is taken from subscriptions to
transmit channels on the network from other sources.
When connected to a network, each break out box will
appear as a separate device in the Dante Controller
software interface.
Audio delivered to input 1 appears as Dante transmit
channel 1 for that device on the network. Input 2 appears
as Dante transmit channel 2, and so on. Any Dante
device on the same network can then subscribe to the
transmit channels and process or route the audio as
needed. In a similar manner, each receive channel can
subscribe to any transmit channel on the network, and
the received audio will be delivered to the analog output
of the same number. Receive channel 1 appears at analog output 1, receive channel 2 to output 2, and so on.
Applications are numerous, such as creating a bidirectional digital snake for stage productions, or sending
audio to a remote recording location in a courtroom
complex, or delivering audio to remote amplifiers and
loudspeakers in a stadium.
The unit operates as a native Dante device with automatic device discovery and clock configuration using
standard ethernet hardware. High quality A/D and D/A
converters ensure excellent audio quality.
*DanteTM is a trademark of Audinate Pty Ltd.
Audinate
®
is a registered trademark of Audinate Pty Ltd.
Rio Rancho, NM, USA
www.lectrosonics.com
Technology Overview
Dante delivers a no hassle, self configuring, true plugand-play digital audio network that uses standard Internet
Protocols over Gigabit Ethernet. Patent-pending Dante
technology distributes digital audio plus integrated control
data with sub millisecond latency, sample-accurate playback synchronization, extreme reliability and high channel
counts.
Sample Accurate Timing with Inaudibly Low
Latency
Dante uses audio independent, high accuracy network
synchronization standards to ensure all Dante devices
are synchronized at all times. Sample accurate playback with extremely low latency and jitter is achieved
without limiting your audio sample rates and network
layout options.
Plug-and-Play Networking for Media Professionals
With Dante’s Zero configuration protocol, you won’t need
a networking specialist to enter numerical IP or MAC addresses, or set up DNS or DHCP servers. Dante makes
networking a true plug-and-play process with automatic
device discovery and system configuration. Danteenabled devices find each other on the network and will
configure themselves, so you can skip those complicated,
error-prone set-up procedures. Instead of “magic numbers,” you label networked devices and their input and
output signals with names that make sense to you.
IP Standards Based Technology
Dante is built on global networking standards including
Internet Protocols — not just Ethernet. With true IP routing, Dante technology works as an IT network capable of
transporting professional quality audio and high definition
video with no limits on your layout options. Dante delivers sample-accurate playback synchronization, even over
multiple switch hops. Latency is extremely low whether
you choose to run your Dante network with fixed latency
or optimized latency. Dante makes it easy to set up robust, flexible digital audio networks with performance that
scales with your network.
Media Networking over Existing Infrastructure
and Hardware
Dante runs on inexpensive off-the-shelf computer networking hardware, and does not require dedicated network infrastructure. Ethernet switches transmit Dante digital media streams alongside ordinary data traffic, so you
can integrate professional media operations into properly
designed pre-existing networks. And with Dante Virtual
Soundcard (DVS), your Mac or Windows computer looks
and acts like any other Dante-enabled device. Just plug in
to the standard Ethernet port to use digital audio processing, recording or playback software on the network.
Summary of Dante Benefits
Dante is a high performance digital audio networking
solution that offers many benefits to users and manufactures of equipment for Live Sound, Install, Recording
or other Pro Audio markets.
• Plug-and-play technology – automatic discovery
and simple signal routing
• Reduced Cost & Complexity- No special skills
required to set up audio networking
• Sample accurate playback synchronization
• Lowest latency available from any networking
technology
• Add/remove/rearrange components at will
• Deterministic latency throughout the network
• Support mixed bit depths and mixed sample rates
over one network
• Scalable, flexible network topology supporting a
large number of senders and receivers
• Supports 1Gbps networks
• Supports a single integrated network for audio,
video, control, monitoring
• Uses inexpensive, off-the-shelf computer networking equipment
• Direct connection to PCs for multi-channel recording, processing and playback using a Dante
Virtual Soundcard for both PCs and Macs
• AVB Ready
Dante controller Software
This software is provided by Audinate Pty. Ltd. and is the
only interface needed to configure the channel assignments in the BOB 88 break out box. The software will
run on Windows and Mac platforms and automatically
identifies and displays all Dante devices connected to
the same network as the computer.
Each device is presented on the screen with transmit
channels shown across the top and receive channels
shown in a column on the left side of the screen. Input
and output channels for each BOB 88 break out box are
numbered next to the label for each device.
In this example, the receive channels are assigned in a
simple 1:1 pattern so that the numbering is consistent.
Receive channel 1 on BobA will receive audio from
transmit channel 1 on BobB. Receive channel 2 from
transmit channel 2, and so on. Since a receive channel
cannot be assigned to its own transmit channels, these
areas are grayed out in the display.
Multiple break out boxes can share network bandwidth
with many other devices. The total number of channels
available will vary with network capacity, sampling rate
and varying utilization, however, with a gigabit network
it is unlikely there would ever be a limitation. A status
screen in the Dante Controller software indicates the
utilization with the selected receive channels.
Block diagram
Signal flow through the break out box is configured so
that each input is the signal source for each Dante transmit channel of the same number. The analog audio at
input 1 appears at Dante transmit channel 1, analog input
2 appears at Dante transmit channel 2, and so on.
Each output receives its audio content from the Dante
receive channel of the same number. Analog output 1
contains the audio from Dante receive channel 1, output
2 from Dante receive channel 2, and so on.
Specifications
Analog inputs:
Type Floating balanced
Level 0 dBu; 20 dB headroom
Impedance 15k ohm (differential); 3.75k ohm (common)
Connector 5-pin Phoenix
Analog outputs:
Type Floating balanced
Level 0 dBu; 20 dB headroom
Impedance 50 ohms
Connector 5-pin Phoenix
Sampling Rate: 48 kHz
Network Interface: Dante
Latency:
Analog in to Dante network: 0.721 ms
Dante network to analog out: Network latency + 0.521 ms
THD + Noise: 0.02%; analog in to analog out
Audio Frequency Response: 20Hz to 20kHz; ±0.1 dB
Input to Output Gain: 0 dB; ±1 dB
Ambient Operating Temperature: –20 C to +50 C; –36 F to +90 F
Power Requirements: 15 VDC; 800 mA
Power Switch: Illuminated rocker
Power Consumption: 12 Watts
Dimensions (overall): 1.73 x 13.36 x 4.6 in.
44 x 339 x 117 mm.
Weight: 22.3 ozs.; 631 grams
581 Laser Road NE • Rio Rancho, NM 87124 USA • www.lectrosonics.com
+1(505) 892-4501 • fax +1(505) 892-6243 • (800) 821-1121 US and Canada • sales@lectrosonics.com
DNTBOB88_SwitchVer_TD
17 November 2015
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