AXYS
®
Octadrive DSP-DN User Manual rev 2.0
201703/ODSPDN_2.0
12
0
Ω
10k
Ω
Contacts 1
Contacts 2
2 x 10k
Ω
resistors
N.B. - relay is shown in
energised state - i.e., no fault
fig.8: Failure relay
On Connector [19], the pins of Contacts 2 present an
impedance of 10k
Ω
in normal operation. When a fault
condition occurs, it rises to 20k
Ω
.
An AXYS
®
Cerberus or other impedance-sensing fault
monitoring equipment may be connected to Contacts 2.
The contact wiring arrangement is shown in the diagram.
The relay contacts have maximum current and voltage
ratings of 100 mA and 24 V respectively.
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.
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
devices 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.9: 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 Octadrive DSP-DN. 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 bit.
Unscreened CAT-5e UTP cable can be used, but
the device 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.