Nautel VR-Link, Техническое руководство по эксплуатации

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VR-Link Technical Instruction Manual
Page 5-1
Section 5 Theory of Operation Issue 0.6
VR-Link
TECHNICAL INSTRUCTIONS
Section 5 THEORY OF OPERATION
5.1 INTRODUCTION
This section is intended to explain unique or
non-obvious circuits and familiarize operators
and maintainers with various components
contained in the VR-Link. See Figures 8-1,
8-2 and 8-3 for circuit diagrams.
NOTE
For theory of operation pertaining to the
ECMP or Vector transmitter, see the
associated Technical Instruction Manual.
5.2 VR-LINK
The VR-Link is essentially an interface that
allows various pieces of equipment to
communicate with each other, each using
different communications standards. This
allows for greater capabilities, expansion and
flexibility of the overall system.
The VR-Link consists of an ac/dc power
supply (U1), serial interface PWB (A1),
Netburner module (U3) and an optional
modem (U4). An optional internal ECMP (A2)
can also be installed.
5.3 AC-DC POWER SUPPLY
The ac-dc power supply (U1) receives an ac
input of between 100 and 240 V ac and
provides outputs of +5 V dc and +15 V dc to
all other components within the VR-Link.
5.4 NETBURNER MODULE
The Netburner module (U3) provides an
embedded web page that allows control and
monitor capabilities of the Vector transmitter.
The web page also allows for configuring of
ECMPs for use with the VR-Link. The
Netburner module has three ports:
Port 1 is an RS-232 compatible port used for
communicating with the Vector transmitter,
either through the serial interface PWB (A1)
or the optional modem (U4).
Port 0 is an RS-232 compatible port that is
used for device configuration (network
parameters) and to communicate to any
attached ECMPs.
The Ethernet (RJ45) port connects the
Netburner module to a host PC through a
network or direct connection using a
crossover cable (see 2.3.3.2). This port has
two indicators. The
Speed indicator is on
when connected to a 100 Mb LAN. The Link
indicator flashes with LAN activity.
The Netburner software can be easily
upgraded over the LAN using an FTP client,
or with a direct serial connection to the
device, using a terminal program (see 3.5).
5.5 MODEM OPTION
The optional modem (U4) is connected to
Port 1 of the Netburner module and
communicates with the Vector’s modem. The
modems can communicate either over a dial-
up phone line or a leased line connection.
The modems must be properly initialized for
the type of connection they are using.