December 16, 2005
DT-4500 Series, Down Converters, Installation and Operation
Manual, Revision 1, dated June 15, 2005
MN/DT4500.EA1
Attach this page to page A-1
Errata A
A.1.1 Configure Mute Mode
Turns the mute mode ON or OFF. When mute mode is OFF (default), the unit will mute
upon changing RF frequency. When mute mode is ON, the unit will remain whatever its
mute state upon changing RF frequency.
Command Details
Config. Mute Mode: <DEV/CMM_xxx'cr' xxx = ON or OFF
Confirmation: >DEV/CMM_xxx'cr''lf']
Mute Mode Status: <DEV/CMM_'cr'
Confirmation: >DEV/CMM_xxx'cr''lf']
Filename: T_ERRATA 1
Comtech EF Data Documentation Update
Subject:
Date:
Document:
Part Number:
Collating Instructions:
Comments:
Add paragraph A.1.1.1 to read:
Change Specifics:
Added A.1.1.1 Packed Configuration Status
December 16, 2005
DT-4500 Series, Down Converters, Installation and Operation
Manual, Revision 1, dated June 15, 2005
MN/DT4500.EB1
Attach this page to page 41
where:
aaaa = # of 125kHz steps above base frequency
bbb = # of 0.25 dB steps above 0.00 dB
c = 1 if Transmitter ON, 0 if OFF, 2 if Cold
d = 1 if unit ONLINE, 0 if OFFLINE
e = 1 if Redundancy ON, else 0
ff = converter # (01-12,BU or 00 if e = 0)
gg = 00 if 'ff' is 00 (redundancy OFF)
gg = chain length (01-12) if 'ff' is BU
gg = XX if 'ff' = 01 - 12
h = A if Auto Mode, M if Manual
I = 1 if Cold Start Enabled, else 0
j = 1 if Auto recovery enabled, else 0
K = 1 if an Ext. Ref is present, else 0
l = 1 if Remote Mode, 0 if Local Mode
Notes: 1
If the converter is 1 kHz step size, this will be the number of 1 kHz steps above the
base frequency. Also, this will be 5 bytes(aaaaa) long for model 4513X converters
with 125 KHz frequency step size. This will be 7 bytes(aaaaaaa) long for all 1KHz
step size converters.
If the converter is 0.1 -dB step size, this will be the number of 0.1 -dB steps above
2
the base frequency
If it is a backup Converter, it is always ‘A’.
3
If it is the primary converter, gg = P1 or P2 (single or dual polarity system.
Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.2161.
Revision 1
June 15, 2005
DT4500 Series Down Converters MN/DT4500.IOM
Preface Revision 1
CUSTOMER SUPPORT
Contact the Comtech EF Data Customer Support Department for:
Product support or training
Information on upgrading or returning a product
Reporting comments or suggestions concerning manuals
A Customer Support representative may be reached at:
Comtech EF Data
Attention: Customer Support Department
2114 West 7th Street
Tempe, Arizona 85281 USA
480.333.2200 (Main Comtech EF Data Number)
480.333.4357 (Customer Support Desk)
480.333.2161 FAX
or, E-Mail can be sent to the Customer Support Department at:
service@comtechefdata.com
Contact us via the web at www.comtechefdata.com.
To return a Comtech EF Data product (in-warranty and out-of-warranty) for repair or
replacement:
1. Request a Return Material Authorization (RMA) number from the
Comtech EF Data Customer Support Department.
2. Be prepared to supply the Customer Support representative with the model
number, serial number, and a description of the problem.
3. To ensure that the product is not damaged during shipping, pack the
product in its original shipping carton/packaging.
4. Ship the product back to Comtech EF Data. (Shipping charges should be
prepaid.)
For more information regarding the warranty policies, see Warranty Policy, p. xii.
ii
Errata C
Comtech EF Data Documentation Update
Subject:
Date:
Document:
Part Number:
Collating Instructions:
Comments:
Add the attached procedure to System Operation
Change Specifics:
Added Dual IF Rack Mount Converters
August 28, 2006
DT-4500 Series, Down Converters, Installation and Operation
Manual, Revision 1, dated June 15, 2005
MN/DT4500.EC1
Attach this page to page 25
Filename: T_ERRATA 1
Dual IF Rack Mount Converters
Comtech EF Data offers converters with the ability to switch the output IF frequency (Downconverters)
and/or the input IF frequency (Upconverters) from 70 MHz to 140 MHz or vice versa. The actual IF
bandwidth is maintained as the standard ± 18 MHz (± 20 MHz) of the 70 MHz configurations.
The software modification required for the implementation of the IF frequency switching are:
1. A front panel command to allow the output IF to switch from 70MHz to 140.
a. The new selection is located in the “Configuration” menu tree. The “normal”
FREQ/ATT/MUT menu is split into two. First menu screen now has “RF FRE= XXXXX
MHz on top line, with “IF FRE= XXX MHz” and “Rx= XXX” on second line. A second
menu screen contains the attenuator setting.
b. Mute behavior after changing the IF frequency is the same as the normal mute behavior
after changing the RF frequency.
2. A new remote command is implemented to accomplish the identical operation as in (1).
a. Command structure similar to the RF frequency selection.
The default is 70 MHz
Command Details
Set IF Frequency: <DEV/IFF_xxx'cr' (where xxx is either 140 or 70 without requiring
leading zero.
Confirmation: >DEV/IFF_ xxx'cr''lf'] (where xxx is either 140 or 70 without requiring
leading zero.
Retrieve Frequency: <DEV/IFF_'cr'
Confirmation: >DEV/IFF_ xxx'cr''lf'] (where xxx is either 140 or 70 without requiring
leading zero.
Mute behavior after changing the IF frequency would be the same as the mute behavior after
changing the RF frequency.
Redundant operation
The customer can not “mix” dual IF converters with standard converters in a redundant system
Filename: T_ERRATA 2
Table of Contents
Customer Support......................................................................................................................... ii
DT4500 Series Down Converters MN/DT4500.IOM
Preface Revision 1
ABOUT THIS MANUAL
This manual provides installation and operation information for the Comtech EF Data
DT4500 Series Down Converters. This is a technical document intended for earth station
engineers, technicians, and operators responsible for the operation and maintenance of
the DT4500 Series Down Converters.
CONVENTIONS AND REFERENCES
CAUTIONS AND WARNINGS
Indicates information critical for proper equipment function.
IMPORTANT
CAUTION
Indicates a hazardous situation that, if not avoided, may result in minor or moderate
injury. CAUTION may also be used to indicate other unsafe practices or risks of
property damage.
Indicates a potentially hazardous situation that, if not avoided, could result in
WARNING
death or serious injury.
METRIC CONVERSION
Metric conversion information is located on the inside back cover of this manual. This
information is provided to assist the operator in cross-referencing English to Metric
conversions.
TRADEMARKS
All product names mentioned in this manual may be trademarks or registered trademarks
of their respective companies and are hereby acknowledged.
REPORTING COMMENTS OR SUGGESTIONS CONCERNING THIS MANUAL
Comments and suggestions regarding the content and design of this manual will be
appreciated. To submit comments, please contact the Comtech EF Data Customer
Support Department.
EMC COMPLIANCE
This is a Class A product. In a domestic environment, it may cause radio interference that
requires the user to take adequate protection measures.
ix
DT4500 Series Down Converters MN/DT4500.IOM
Preface Revision 1
EN55022 COMPLIANCE
This equipment meets the radio disturbance characteristic specifications for information
technology equipment as defined in EN55022.
EN50082-1 COMPLIANCE
This equipment meets the electromagnetic compatibility/generic immunity standard as
defined in EN50082-1.
FEDERAL COMMUNICATIONS COMMISSION (FCC)
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment.
This equipment generates, uses, and can radiate radio frequency energy. If not installed
and used in accordance with the instruction manual, it may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference; in which case, users are required to correct the interference at their
own expense.
Note: To ensure compliance, properly shielded cables for DATA I/O shall be used. More
specifically, these cables shall be shielded from end to end, ensuring a continuous shield.
x
DT4500 Series Down Converters MN/DT4500.IOM
Preface Revision 1
SAFETY COMPLIANCE
EN 60950
Applicable testing is routinely performed as a condition of manufacturing on all units to
ensure compliance with safety requirements of EN60950.
This equipment meets the Safety of Information Technology Equipment specification as
defined in EN60950.
LOW VOLTAGE DIRECTIVE (LVD)
The following information is applicable for the European Low Voltage Directive
(EN60950):
<HAR> Type of power cord required for use in the European Community.
!
CAUTION: Double-pole/Neutral Fusing.
ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung.
International Symbols:
Symbol Definition Symbol Definition
Alternating Current.
Fuse.
Protective Earth.
Chassis Ground.
Note: For additional symbols, refer to “Cautions” listed earlier in this preface.
xi
DT4500 Series Down Converters MN/DT4500.IOM
Preface Revision 1
WARRANTY POLICY
This Comtech EF Data product is warranted against defects in material and workmanship
for a period of two years from the date of shipment. During the warranty period, Comtech
EF Data will, at its option, repair or replace products that prove to be defective.
For equipment under warranty, the customer is responsible for freight to Comtech EF
Data and all related custom, taxes, tariffs, insurance, etc. Comtech EF Data is responsible
for the freight charges only for return of the equipment from the factory to the customer.
Comtech EF Data will return the equipment by the same method (i.e., Air, Express,
Surface) as the equipment was sent to Comtech EF Data.
LIMITATIONS OF WARRANTY
The foregoing warranty shall not apply to defects resulting from improper installation or
maintenance, abuse, unauthorized modification, or operation outside of environmental
specifications for the product, or, for damages that occur due to improper repackaging of
equipment for return to Comtech EF Data.
No other warranty is expressed or implied. Comtech EF Data specifically disclaims the
implied warranties of merchantability and fitness for particular purpose.
EXCLUSIVE REMEDIES
The remedies provided herein are the buyer's sole and exclusive remedies. Comtech EF
Data shall not be liable for any direct, indirect, special, incidental, or consequential
damages, whether based on contract, tort, or any other legal theory.
DISCLAIMER
Comtech EF Data has reviewed this manual thoroughly to provide an easy-to-use guide
to your equipment. All statements, technical information, and recommendations in this
manual and in any guides or related documents are believed reliable, but the accuracy and
completeness thereof are not guaranteed or warranted, and they are not intended to be,
nor should they be understood to be, representations or warranties concerning the
products described. Further, Comtech EF Data reserves the right to make changes in the
specifications of the products described in this manual at any time without notice and
without obligation to notify any person of such changes.
If you have any questions regarding the equipment or the information in this manual,
please contact the Comtech EF Data Customer Support Department.
xii
Chapter 1. Introduction
DT-4500
Series
Down
Converter
1.1 OVERVIEW
This manual provides instructions on the installation, operation and maintenance of the
DT-4500 Series Down Converters manufactured by Comtech EF Data Corp.
Individual specifications for each model are included in this section.
DT-4503
DT-4503C
DT-4503D
DT-4503E
DT-4510
DT-4510D
DT-4511
DT-4512
DT-4512E
DT-4513
DT-4513E
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DT4500 Series Down Converters MN/DT4500.IOM
Introduction Revision 1
1.2 FUNCTIONAL DESCRIPTION
The DT-4500 Series Down Converters are designed for use in communication systems,
or in satellite downlink data systems, for the transmission of SCPC, DAMA and TDMA
communication signals. The Down Converters can also be used in communications
system applications with full transponder HDTV and analog TV.
The converter is designed to be hard mounted in a standard 19-inch (48.26 cm) rack or
cabinet, or to be rack mounted using slide mechanisms provided with the converter to
allow it to be serviced without its removal from the rack. An internally mounted exhaust
fan for cooling is mounted on the rear of the chassis. An AC power connector, with an
on/off switch, is also located on the rear on the chassis. A six-foot AC power cord is
supplied with the converter.
All operator controls, indicators and displays for local and remote operation are located
on the front panel of the converter. Connectors for the external interface connections are
located on the rear of the converter chassis.
MADE IN USA
Figure 1. Front Panel (Model DT-4511 shown)
J4J6J8J5
P1 RELAY
J1 COM 1
EXT REF
EXT REF
J2B OUT
J2A IN
Figure 2. Rear Panel (shown with RSM Module)
RFLP OUTLP INIFJ3 HSB
2
DT4500 Series Down Converters MN/DT4500.IOM
Introduction Revision 1