Klark Teknik DN9652 User Manual
Chapter 2: Overview
DN9650/DN9652 Network Bridge
8
Operator Manual
Front and rear panels of the DN9652 Network Bridge
Since the network clock domains (A and B) contain digital audio, an intermediate
asynchronous sample rate converter (ASRC) effectively resamples the audio as it
passes between them, while obeying Nyquist sampling theory
asynchronous sample rate converter (ASRC) effectively resamples the audio as it
passes between them, while obeying Nyquist sampling theory
1
. The ASRC has a bypass
option for when both domains are locked to the same sample clock; this has the facility
to select one of the clock domains as a master, which allows one to be synchronously
clocked from the other to minimise latency.
to select one of the clock domains as a master, which allows one to be synchronously
clocked from the other to minimise latency.
• AES50 clock domain Supports either internal or external synchronisation. The
DN9650 uses its on-board clock oscillator for internal synchronisation. For external
synchronisation, the incoming clock is connected to one of the AES50 ports.
Additionally, the AES50 clock domain has the option of slaving to the network clock
domain, word clock and video black burst if the SRC is bypassed.
synchronisation, the incoming clock is connected to one of the AES50 ports.
Additionally, the AES50 clock domain has the option of slaving to the network clock
domain, word clock and video black burst if the SRC is bypassed.
• Network clock domain Supports clock synchronisation to the incoming clock via
a third party network module, word clock in or video black burst (supporting
PAL/NTSC formats) interfaces. Additionally (DN9650 only), the network clock
domain has the option of slaving to the AES50 clock domain.
PAL/NTSC formats) interfaces. Additionally (DN9650 only), the network clock
domain has the option of slaving to the AES50 clock domain.
Supported third party multi-channel digital audio interfaces are as follows:
• LabX MADI V1.14
• Audinate Dante
• Aviom a-Net
• Ethersound
• It is intended that more third party protocols will be supported
The DN965X has an internal Linux web server running a platform-independent
HTML-based interface that allows unit configuration via a computer (with up-to-date
browser), which is connected to the Ethernet port on the rear panel of the unit.
Supported platforms are: PCs (Windows); Apple Macs; and Linux-based PCs.
HTML-based interface that allows unit configuration via a computer (with up-to-date
browser), which is connected to the Ethernet port on the rear panel of the unit.
Supported platforms are: PCs (Windows); Apple Macs; and Linux-based PCs.
The units are capable of operating from a 100 to 240V ±10%, 50 to 60Hz AC power
source.
source.
Key features
The DN965X has the following key features:
• 1U high, 19” rackmount unit.
• Able to interface between AES50 and third party multi-channel audio networks
(DN9650 only) or dual networks (DN9652 only).
1. The Nyquist sampling theory defines the process of sampling audio within a digital system.