Integrated L-Band Up/Dn Converter CG-1294
Page 5
SECTION 1 General Information
1.0 INTRODUCTION
This manual contains installation, operation,
and maintenance information for the Integrated
L-Band Up/Dn Converter manufactured by
VertexRSI, Longview, Tx. Information is
organized according to section. Within each
section the pages, figures and tables are
numbered by section and by order of appear-
ance within the section. Unless otherwise
noted, any information about the unit applies
to the LT-3000, Model 201539-100.
1.1 SAFETY INFORMATION
This equipment has been designed to minimize
exposure of personnel to hazards.
W
WA
AR
RN
NI
IN
NG
G
A continuous safety earth ground must be
provided from the main power source
through the main power cord. This is
provided in the power cable shipped with
the unit. If this power cord is damaged, it
should be replaced with cord of equal or
better specifications. This cord can be
obtained from VertexRSI.
Servicing instructions are for use by trained
personnel only. To avoid dangerous electric
shock, do not perform any servicing unless
qualified to do so. Do not replace components
with the power cord connected to the
equipment.
W
WA
AR
RN
NI
IN
NG
G
Some of the adjustments described in this
manual are performed with power applied
while protective covers are removed.
Always be careful not to come on contact
with dangerous voltages while performing
these procedures, and never work alone.
With power applied to the unit and the
cover removed, be aware that a rotating fan
is operating.
1.2 GENERAL INTRODUCTION
This manual provides operation and service
instructions for the Integrated L-Band Up/Dn
Converter. The unit consists of a power supply,
forced-air cooling system, microprocessor-
based CCA (circuit card assembly) and control
circuitry and the modules required for up and
down conversion. It incorporates extensive
monitor and control functions that are
accessible from the front panel as well as
through a remote serial bus. A general
description of the front and rear panels is given
in Sections 1.5 and 1.6. A description of the
Keypad and Display option can be found in
Appendix A.
The Integrated L-Band Up/Dn Converter is
housed in an enclosure destined for mounting
in a standard EIA 19-inch rack, requiring a
1.75-inch high vertical space.
1.3 PURPOSE OF EQUIPMENT
The Integrated L-Band Up/Dn Converter is a
fully synthesized up and down converter
covering full 575 MHz bandwidth receiving RF
frequencies in up to 1 MHz steps. The unit
incorporates extensive monitor and control
functions that are accessible from the front
panel as well as through a remote RS-
232/422/485 bus.
The LT-3000 can be configured to
accommodate various requirements involving
an IF of 70 or 140 MHz, non-inverted or
inverted spectrum, with standard or high-
stability 10 MHz reference oscillator or any
combination the user desires. Combined with
jumper selectable and user programmable
options, the LT-3000 is flexible to user
requirements.
