Manual

Model 215 User Guide Issue 5, December 2018
Studio Technologies, Inc. Page 27
way multiple Dante-enabled devices can
be connected together and automatically
function, whether or not a DHCP server
is active on the LAN. Even two Dante-en-
abled devices that are directly intercon-
nected using an RJ45 patch cord will
correctly acquire IP addresses and be
able to communicate and transport audio.
Using the Dante Controller software ap-
plication the Model 215’s IP address and
related network parameters can be set for
a fixed (“static”) configuration. While this
is more involved than letting DHCP or
link-local “do their thing,” if fixed address-
ing is necessary then that capability is
available. But in this case it’s highly rec-
ommended that each unit be physically
marked, e.g., directly using a permanent
marker or “console tape,” with its specific
IP address. If knowledge of a Model 215’s
IP address has been misplaced there is no
reset button or other method to restore the
unit to a default IP setting.
In the unfortunate event that a device’s IP
address is “lost,” the Address Resolution
Protocol (ARP) networking command can
be used to “probe” devices on a network
for this information. For example, in Win-
dows OS the arp –a command can be
used to display a list of LAN information
that includes MAC addresses and cor-
responding IP addresses. The simplest
means of identifying an unknown IP ad-
dress is to create a “mini” LAN with a per-
sonal computer connected directly to the
Model 215. Then by using the appropriate
ARP command the required “clues” can
be obtained.
For best Dante audio-over-Ethernet perfor-
mance a network that supports VoIP QoS
capability is recommended. This can typi-
cally be implemented on virtually all con-
temporary managed Ethernet switches.
There are even specialized switches that
are optimized for entertainment-associated
applications. Refer to the Audinate website
(www.audinate.com) for details on optimiz-
ing networks for Dante applications.
P48 Phantom Power
The Model 215 provides a source of phan-
tom power to support condenser-type
microphones. It’s designed to meet the
P48 requirements as specified in the IEC
61938 standard. The circuitry is very sim-
ple, consisting of 6.85 k ohm resistors that
provide a path from a 45 volt source to
pins 2 and 3 of the microphone input con-
nector. The resistors and the power source
work together to provide the required 48
±4 volts, up to a maximum current of 10
milliamperes.
Travel Case
For portable applications it may be desir-
able to store and transport each Model
215 in a protective case. After much travel
with prototype announcer’s console units,
Studio Technologies’ personnel learned to
appreciate the Pelican Model 1450 case.
Purchased with the foam interior option,
it does an excellent job of holding one
Model 215, an external 12 volt DC power
supply, and documentation. Some ap-
plications may benefit from selecting a
larger case that would also hold a related
headset, cables, etc. A larger case could
also be selected that would hold multiple
Model 215 units. Pelican sells their prod-
ucts through a dealer network, many of
which can be located via a web search.