Harman AXYS TUNNEL IndustryAmp Dante PB-400-DN, Инструкция по установке и эксплуатации, Страница: 13 / 20

AXYS
®
IndustryAmp-DN User Manual Rev 3.0
201911/IAMPDN_3.0 13
Dante
™
and Control Interface
Connections to the Dante ™ card are made via RJ-45
connectors. Either the Port labeled ‘Primary’ or labeled
‘Secondary’ may be used; if a dual redundant network
is employed in the installation, then use both ports,
connecting each to independent Ethernet switches.
Separate networks are required for Dante
™ , not only
separate switches (see Dante ™ recommendations). Primary
and secondary interface cannot be connected to the same
network.
NOTE: A connection to 1 Gb/s network is strongly
recommended.
Standard pre-made CAT-5e or higher (CAT-6 etc) network
cables (see note hereafter) may be used to connect
amplifiers to the local Ethernet switch(es). However, in
many installations, the network connection from within a
rack to an Ethernet switch will be via structural cabling. In
this case, wire mating RJ-45 plugs (not supplied) as shown
below:




fig.4: Dante
™
Connectors
This is the T-568B standard (preferred), T-568A standard is
also used and uses different colour mapping
PIN CAT-5e CORE
1 White + Orange
2 Orange
3 White + Green
4 Blue
5 White + Blue
6 Green
7 White + Brown
8 Brown
The maximum cable run for reliable operation using
CAT-5e cable is of the order of 100 m. If longer distances
are involved, the use of multimode fibre-optic cable is
recommended. This is generally satisfactory up to 2 km,
but repeaters (or the use of single-mode fibre) can be used
to increase the distance further. A third-party Ethernet-to-
fibre interface will be required in these situations.
The Dante ™ interfaces add digital audio I/O and a
control method to the IndustryAmp. They provide sixteen
additional audio inputs and seventeen audio outputs, at a
sampling rate of 48 kHz and bit depths of 16, 24 or 32 bits.
NOTE: Unscreened CAT-5e UTP cable can be
used, but note that the amplifier may fail to
preserve its high level of surge immunity and as a
consequence, will no longer be compliant with the
standards set out in the EC Statement of Conformity.
CAT-5e twisted pair cable with an overall foil shield
(referred to as FTP or F/UTP) is required for compliancy.
ANS microphone input
The IndustryAmp’s DSP card includes an Autogain
algorithm which adjusts the gain of the amplifier in
response to ambient noise levels. To accomplish this, an
external Ambient Noise Sensing (ANS) microphone must
be connected to the ANS mic input.
Connection is via a 3-pin 3.81 mm-pitch screw terminal
connector, with the same pinout as the analogue audio
inputs. See “fig.2: Analogue Inputs” on page 12 for
wiring details.
Note the post-preamp ANS mic signal is transmitted on
channel 17 of the Dante
™ interface. This permits an ANS
mic to be monitored at a remote location.
A suitable AXYS
®
ANS microphone is available as an
option (Part No. TUN-ANS). This should be wired using a
single twisted-pair cable with an overall screen. Connect
the microphone pair to the ‘+’ and ‘-‘ pins of the Ambient
Microphone input. The cable’s overall screen should be
connected to the pin of the Ambient Microphone input
marked with an earth (ground) symbol .