Studio Technologies Dante 5402, Руководство пользователя

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Issue 3, August 2021 Model 5402 User Guide
Page 8 Studio Technologies, Inc.
Model 5402
DANTE LEADER CLOCK WITH GNSS SYNCHRONIZATION
In the ReMgmt mode two independent Ethernet
connections can be made to the Model 5402’s two Dante
Ethernet ports. This will enable Leader clock capability for
redundant Dante applications. Access to the Model 5402’s
management webpages will be made by way of the Ether-
net connection made to the Dante primary Ethernet port.
Operating Power
The Model 5402 allows an AC mains source of 100-240
V, 50/60 Hz to be directly connected. It can also be DC
powered using a 10-18 volt source that is connected via a
broadcast-standard 4-pin XLR connector. If both AC and
DC power sources are connected the unit will be powered
by the AC mains supply. Only if the AC mains source fails
will appreciable power be drawn from the DC source. This
allows a source of DC, typically an external power supply,
to serve in a backup capacity. With this arrangement normal
operation can continue even if AC mains power is lost.
Future Capabilities
The Model 5402 was designed so that its capabilities can
be enhanced in the future. A USB receptacle, located on
the unit’s back panel, allows the three firmware files (em-
bedded software) to be updated using a USB flash drive.
The Model 5402’s Dante firmware can be updated using
one of the unit’s Ethernet connections, helping to ensure
that the Dante capabilities remain up to date. All software
files and configuration parameters are stored in non-volatile
memory.
Installation
In this section the Model 5402 will be mounted in one
space (1U) of an equipment rack. In most cases, a GNSS
(satellite) antenna will be connected. It’s also possible that
an synchronization source will be connected to the sync
input BNC jack. If needed, a connection may be made to
the word clock output BNC jack on the back panel. One or
more Ethernet data connections will be made. AC mains
and/or DC power will be connected to the Model 5402.
The interface cable associated with the included GNSS an-
tenna will be connected to the SMA jack on the back panel
of the Model 5402. Using a coaxial cable terminated with a
BNC plug, an external source of synchronization may be
connected to the sync input BNC jack. A word clock output
is provided by way of a BNC jack and may be utilized by
one or more pieces of equipment. Up to three Ethernet data
connections will be made to the Model 5402 using standard
RJ45 patch cables.
AC mains power can be connected to the Model 5402 by
means of a detachable cord that is compatible with the
unit’s 3-pin IEC 320 C14 inlet connector. Some applications
may warrant connection to a source of nominal 12 volts DC
which can be made by way of a 4-pin XLR connector. A
DC source can be used to power the Model 5402 as well
as serving as a backup power source should AC mains
not be present.
What’s Included
The shipping carton contains a Model 5402 Dante Leader
Clock, a GNSS antenna, and instructions on how to ob-
tain an electronic copy of this guide. Also included in the
shipping carton is a North-American-standard AC mains
cord. For destinations outside of North America the local
reseller or distributor should provide an appropriate AC
mains cord.
Mounting the Model 5402
The Model 5402 Dante Leader Clock requires one space
(1U) in a standard 19-inch (48.3 cm) equipment rack.
Secure the unit into the designated equipment rack using
two mounting screws per side. As the Model 5402 does
not contain a fan or other noise-producing source it can
be located within a room or other structure where audio
monitoring is going to take place. But the priority when
selecting a location is to ensure that the cable associated
with the GNSS antenna can reach the SMA jack on the
Model 5402’s back panel. In addition, some or all of the
connections involving the sync input BNC jack, the word
clock output BNC jack, the Ethernet interface RJ45 jacks,
and the AC mains and/or DC power connectors may be
utilized.
The included GNSS antenna has an integral 5-meter (16.3
foot) nominal cable terminated with an SMA plug. It’s pos-
sible that an extension cable or alternate antenna will be
utilized which could expand the mounting location choices.
Twisted-pair (UTC) Ethernet has a 100-meter (325-foot)
interconnection cable limitation. But that can be overcome
by using fiber-optic interconnections between the Model
5402 and the Ethernet switch or switches in the one or
more associated local-area-networks (LANs).
Connecting the GNSS Antenna
A multiband GNSS antenna is included with each Model
5402. This is not just a common low-cost single-band ge-
neric “GPS” antenna. This antenna, Studio Technologies’
order code ANT-GNSS-01, is a premium-quality device that
will support reception of all the satellite constellations that
can be received by the Model 5402. The antenna must be
located where an unobstructed “view” of the sky is avail-
able. The top of the antenna should face up so as to be
within line-of-sight of overhead satellites. In most cases, an
outdoor location will be optimal but selecting an indoor loca-
tion that has minimal RF blockage can also be effectively
used. The antenna is suitable for outdoor use and has an
IP67 rating. This prevents dust from entering the unit. It also