MRC DRS4000, Руководство пользователя и техническое руководство

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Routine Operation 2-4 DRS4000 Receiver User and Technical Manual
2.2.1 Front Panel Controls, Indicators, and
Connectors
POWER Switch The POWER switch controls application of
power to the unit. When set to on ( I ), power is applied to the
unit. When set to off ( O ), power is removed from the unit.
USB Connector The USB 2.0 connector allows you to install
firmware updates from MRC via a flash drive.
ETHERNET Connector The RJ-45 ETHERNET connector
allows you to connect the receiver to a computer and use the
DRS4000 web browser interface to control the receiver.
MONITOR Screen The MONITOR screen provides a live view
of the incoming video signal. If the receiver loses the incoming
signal for any reason, the
MONITOR screen will display either a
freeze frame or a blank screen.
With the spectrum viewer option installed, the monitor also
displays the RF spectrum as an overlay to the video display.
Control Menu The Control menu reports real-time data for the
video signal and shows current RF settings. The Control menu
also displays menus used to change system settings.
Keypad The keypad consists of easy-to-use push buttons that
provide access to all system parameters and settings. See
“Keypad Operation” on page 2-8 for details.
2.2.2 Rear Panel Connectors
The rear panel contains the connectors for power, diversity
inputs and outputs, and audio outputs. If the packet switching
subsystem is installed, the blank panel is replaced by the
PACKET connector panel.
The rear panel provides numerous inputs and outputs. These
inputs and outputs are as follows.
CNTL/MON 1 thru CTRL/MON 4 Connectors The control/
monitor connectors are 7-pin Lemo sockets that provide control
outputs and monitor inputs for the corresponding downconverter.
For example,
CTRL/MON 4 controls and monitors BDC 4 .
BDC 1 thru BDC 4 Connectors The block downconverter
(BDC) connectors are TNC connectors that accept the UHF
signals from the downconverters and their corresponding
antennas. To power each downconverter, +8.5/+18.5 VDC is
applied to the coaxial cable that runs from the BDC connector to
the downconverter.
CV 1 and CV 2 Connectors These Composite Video (CV)
connectors are 75 ohm, female, BNC connectors that provide
analog video signal outputs.
WAYSIDE DATA Connector This RS-232, 9-pin female
connector is the wayside channel, used for transfer of data such
as global positioning satellite (GPS) data or meta data from the
MPEG decoder. Using a standard RS-232 cable, you can
connect the receiver’s
WAYSIDE DATA connector to a computer
or an auto-tracking antenna system.
ALARM Connector This DB-15 female connector connects to
single-pole single throw (SPST) switches for summary alarm
data for common faults and events and for site management
control. One SPST switch is for a minor alarm, one SPST switch
is for a major alarm, and four SPST switches are for site
management.
GEN LOCK Connector This 75 ohm, female, BNC connector
provides the Gen Lock input to the MPEG module.
The Frame Sync function must be turned on via the Set Frame
Sync Menu in order to use GEN LOCK .
SDI Connectors The SDI connectors are 75 ohm, female, BNC
connectors that provide SD/HD video data stream outputs from
the MPEG module that are compliant with SMPTE 259M.