VTI Instruments EX1401, User Manual

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EX1401 Preparation for Use 29
•
Cisco SF302-08PP (8-port PoE+ managed switch)
•
Intellinet Model 560856 (8-port PoE+ switch)
•
Trendnet TPE-115I/A (Power Injector)
The maximum power consumption of the unit is 15W. The unit accepts and performs within the
specifications, when the Auxiliary Supply voltage is b10V
DC
to +50V
DC
. The power inputs
are protected for reverse polarity by up to 50V in reverse direction. If the AUX input connector is
used to supply power to the unit, then the power supplied must be isolated from earth ground by
1500Vrms to maintain isolated Ethernet. (The AUX negative terminal is connected to one side of
the Ethernet’s twisted pair common mode.)
F
IGURE
2-3: A
UX
DC I
N CONNECTOR
P
INOUT
The power inputs (both POE+ and AUX DC IN) are isolated from chassis, as are the analog inputs
and digital IO. Hence users are required to earth ground the EX1401 chassis for safe operation. The
safety ground connection is on the rear panel and is required to be connected to the local earth
ground using the provided cable (VTI# 53-0070-072). Do not use the banana jack on the front panel
for earth grounding the EX1401. This connector is for reference only, and is not meant to be a safety
ground connection. The front side connector is a standard Banana socket (ITT Pomona 3267), while
the rear side connector is 10-32 size stud.
S
OFTWARE
I
NSTALLATION
The fastest way to begin controlling an EX1401 is to discover the unit using the LXI Discovery
Tool utility (a free tool available from LXI Consortium). For more information, refer to:
http://lxistandard.org/Resources/LXIDiscoveryTool.aspx
The LXI Discovery Tool searches for all LXI Devices on the LAN Subnet. It uses mDNS and VXI-
11 protocols to detect the LXI Instruments. It may be necessary to download “Apple Bonjour Print
Services”in order to use mDNS service as the discovery mechanism. However, it is not mandatory
to install this service, since the EX1401 can also be discovered via VXI-11.
D
RIVER
I
NSTALLATION
VTI Instruments provides two types of drivers for this instrument. For Windows, there is an IVI
driver, based on the industry standard IVI driver architecture specifications. The IVI driver exposes
both IVI-COM and IVI-C interface APIs. The IVI-COM interface can be used from any
programming language that supports Microsoft COM (Component Object Model). For Linux, there
is a driver that provides a C++ API. Both Windows and Linux drivers have a consistent API design