Comtech EF Data RCU101 User Manual

RCU101

1:1 Converter Protection Switch

Installation and Operation Manual

TM055 - Rev. 2.2

May, 2002

- NOTICE -

2002, Radyne ComStream Corporation. All rights

reserved. Unauthorized reproduction of this manual in
any form without the expressed written approval of
Radyne ComStream Corporation is strictly prohibited.
This manual may not in whole or in part be copied,
reproduced, translated or reduced to any electronic or
magnetic storage medium without the written consent of
a duly authorized officer of Radyne ComStream
Corporation.

Radyne ComStream Corporation • 3138 E. Elwood St. • Phoenix, AZ 85034 • [phone] • Fax: [phone]

RCU101 1:1 Protection Switch Warranty Policy

RADYNE COMSTREAM WARRANTY POLICY

WARRANTY AND SERVICE

Radyne ComStream (Seller) warrants the items manufactured and sold by Radyne ComStream to be free
of defects in material and workmanship for a period of two (2) years from date of shipment Radyne
ComStream’s obligation under its warranty is limited in accordance with the periods of time and all other
conditions stated in all provisions of this warranty.

This warranty applies only to defects in material and workmanship in products manufactured by Radyne
ComStream. Radyne ComStream makes no warranty whatsoever concerning products or accessories not
of its manufacture.

Repair, or at Radyne ComStream’s option, replacement of the Radyne ComStream products or defective
parts therein shall be the sole and exclusive remedy for all valid warranty claims.

WARRANTY PERIOD
The applicable warranty period shall commence on the date of shipment from Radyne ComStream’s facility

to the original purchaser and extend for the stated period following the date of shipment. Upon beginning
of the applicable Radyne ComStream warranty period, all customer’s remedies shall be governed by the
terms stated or referenced in this warranty. In-warranty repaired or replacement products or parts are
warranted only for the remaining unexpired portion of the original warranty period applicable to the repaired
or replaced products or parts. Repair or replacement of products or parts under warranty does not extend
the original warranty period.

WARRANTY COVERAGE LIMITATIONS

The following are expressly not covered under warranty:

1. Any loss, damage and/or malfunction relating in any way to shipping, storage, accident, abuse,
alteration, misuse, neglect, failure to use products under normal operating conditions, failure to use
products according to any operating instructions provided by Radyne ComStream, lack of routine care and
maintenance as indicated in any operating maintenance instructions, or failure to use or take any proper
precautions under the circumstances.

2. Products, items, parts, accessories, subassemblies, or components which are expendable in normal
use or are of limited life, such as but not limited to, bulbs, fuses, lamps, glassware, etc.

TM055 - Rev. 2.2 ii

Warranty Policy RCU101 1:1 Protection Switch

Radyne ComStream reserves the right to revise the foregoing list of what is covered under this warranty.
WARRANTY REPLACEMENT AND ADJUSTMENT
Radyne ComStream will not make warranty adjustments for failures of products or parts which occur after

the specified maximum adjustment period. Unless otherwise agreed, failure shall be deemed to have
occurred no more than seven (7) working days before the first date on which a notice of failure is received
by Radyne ComStream. Under no circumstances shall any warranty exceed the period stated above
unless expressly agreed to in writing by Radyne ComStream.

LIABILITY LIMITATIONS
THIS WARRANTY IS EXPRESSLY IN LIEU OF AND EXCLUDES ALL OTHER EXPRESS AND IMPLIED

WARRANTIES, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY AND OF
FITNESS FOR PARTICULAR PURPOSE, USE, OR APPLICATIONS, AND ALL OTHER OBLIGATIONS
OR LIABILITIES ON THE PART OF RADYNE COMSTREAM, UNLESS SUCH OTHER WARRANTIES,
OBLIGATIONS, OR LIABILITIES ARE EXPRESSLY AGREED TO IN WRITING BY RADYNE
COMSTREAM.

All obligations of Radyne ComStream under this warranty shall cease in the event its products or parts
thereof have been subjected to accident, abuse, alteration, misuse or neglect, or which have not been
operated and maintained in accordance with proper operating instructions.

IN NO EVENT SHALL RADYNE COMSTREAM BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL,
SPECIAL OR RESULTING LOSS OR DAMAGE OF ANY KIND HOWSOEVER CAUSED. RADYNE

COMSTREAM’S LIABILITY FOR DAMAGES SHALL NOT EXCEED THE PAYMENT, IF ANY, RECEIVED
BY RADYNE COMSTREAM FOR THE UNIT OR PRODUCT OR SERVICE FURNISHED OR TO BE
FURNISHED, AS THE CASE MAY BE, WHICH IS THE SUBJECT OF CLAIM OR DISPUTE.

Statements made by any person, including representatives of Radyne ComStream, which are inconsistent
or in conflict with the terms of this warranty, shall not be binding upon Radyne ComStream unless reduced
to writing and approved by an officer of Radyne ComStream.

WARRANTY REPAIR RETURN PROCEDURE
Before a warranty repair can be accomplished, a Repair Authorization must be received. It is at this time

that Radyne ComStream will authorize the product or part be returned to the Radyne ComStream facility or
if field repair will be accomplished. The Repair Authorization may be requested in writing or by calling:

Radyne ComStream Corporation
3138 E. Elwood St.
Phoenix, Arizona 85034 (USA)
Attn: Customer Support
Phone: [phone] Fax: [phone]
Any product returned to Radyne ComStream for examination must be sent prepaid via the means of

transportation indicated as acceptable to Radyne ComStream. Return Authorization Number must be
clearly marked on the shipping label. Returned products or parts should be carefully packaged in the
original container, if possible, and unless otherwise indicated, shipped to the above address.

NON-WARRANTY REPAIR
When a product is returned for any reason, Customer and its shipping agency shall be responsible for all

damage resulting from improper packing and handling, and for loss in transit, not withstanding any defect
or nonconformity in the product. By returning a product, the owner grants Radyne ComStream permission
to open and disassemble the product as required for evaluation. In all cases, Radyne ComStream has sole
responsibility for determining the cause and nature of failure, and Radyne ComStream's determination with
regard thereto shall be final.

TM055 - Rev. 2.2 iii

RCU101 1:1 Protection Switch Record of Revisions

RCU101 1:1 Protection Switch

Installation and Operation Manual

TM055 - Record of Revisions

Radyne ComStream Corporation is constantly improving its products and therefore the information in this
document is subject to change without prior notice. Radyne ComStream Corporation makes no warranty of
any kind with regard to this material, including but not limited to the implied warranties of merchantability
and fitness for a particular purpose. No responsibility for any errors or omissions that may pertain to the
material herein is assumed. Radyne ComStream Corporation makes no commitment to update nor to
keep current the information contained in this document. Radyne ComStream Corporation assumes no

responsibility for use of any circuitry other than the circuitry employed in Radyne ComStream Corporation’s
systems and equipment.

Revision

Level

Date Reason for Change

1 7-15-96 Initial Release
2 11-28-96 Added Illustrations of front and rear panels, new interconnection

diagram, added schematics, updated Operation and Maintenance

2.1 2-7-97 Updated Fault Status connector, updated specifications

2.2 5-31-02 Added Appendix B

TM055 - Rev. 2.2 iv

RCU101 1:1 Protection Switch Table of Contents

Table of Contents

1.0 Introduction….…..……………………………………………………………………………………… 1-1

2.0 Installation Requirements..…...……………………………………………………………………… 2-1

2.1 Unpacking..………..…………………………………………………………………………………… 2-1

2.1.1 Removal and Assembly..…………………………………………………………………………… 2-1

2.2 Mounting Considerations.…..………………………………………………………………………… 2-1

2.3 Cabling..………………………………………………………………………………………………… 2-1

2.4 Hardware Interface..…………………………………………………………………………………… 2-4

2.4.1 Protection Switch Interface Connector……………………………………………………………2-4

2.4.2 Switch Fault/Status Connector…….……………………………………………………………… 2-5

2.4.3 RCU101 RF and IF Rear Panel Connectors..……………………………………………………2-5

2.4.4 Interfaces Common to the Converters…………………………………………………………… 2-6

2.4.5 Operator Serial I/O.………………………………………………………………………………… 2-6

2.4.6 Up/Downconverter Equipment RS485 Port..…..…………………………………………………2-7

3.0 Operation (Definitions)…….……………………………………………………………………………3-1

3.1 Switch Logic………..……………………………………………………………………………………3-1

3.2 Manual/Auto Mode Selection Switch.….…………………………………………………………….. 3-1

3.3 Switch LEDs…………………………………….……………………………………………………… 3-2

3.4 Troubleshooting and/or Replacing a Faulted Converter……………………………………………3-2

4.0 Periodic Maintenance…………..………………………………………………………………………4-1

Appendix A - Technical Specifications….…………………………………………………………………A-1

Appendix B - RCU101 Block Diagram, Configuration Drawings and Schematics……………………B-1

TM055 - Rev. 2.2 v

TM054 - Rev. 2.2

vi

RCU101 1:1 Protection Switch Description

Section 1 - RCU101 1:1 Protection Switch Description

1.0 Introduction

The Radyne ComStream RCU101 1:1 Protection Switch Unit provides automatic circuit
restoration for one online frequency Up or Downconverter. The switch provides complete
isolation of primary and backup converters by providing transfer switching of both the RF and IF
signal paths. Converter fault and circuit restoration is initiated from the summary fault contacts of
the online converter. Upon clearing of the fault in the online converter, or after replacement of the
online converter, the switch can be directed to restore the operation to the online converter (or

the converter that is selected as the ‘online’ unit). An RS485 Equipment interface between the
converters allows the backup converter to ‘learn’ the gain and frequency settings of the online
unit.

Figure 1-1. RCU101 1:1 Protection Switch Front Panel

TM055 - Rev. 2.2 Page 1-1

RCU101 1:1 Protection Switch Installation

Section 2 - Installation

2.0 Installation Requirements

The RCU101 is designed to be installed within any standard 19-inch equipment cabinet or rack,

and requires 1 rack unit of mounting space (1.75 inches) vertically, and 17-inches of depth.
Including cabling, a minimum of 20-inches of rack depth is required. The unit can be placed on a
table or suitable surface if required.

There are no user-serviceable parts or configuration settings located inside the RCU101
chassis. There is a potential shock hazard internally at the power supply module. DO

NOT open the RCU101 chassis under any circumstances.

 CAUTION: Before initially applying power to the unit, it is a good idea to disconnect

the transmit output from the operating satellite ground station equipment. This is
especially true if the current RCU101 configuration settings are unknown, where incorrect
setting could disrupt existing communications traffic.

2.1 Unpacking
The RCU101 was carefully packaged to avoid damage and should arrive complete with the

following items for proper installation:

1. RCU101 1:1 Protection Switch

2. One cable set per paragraph 2.3.

3. Installation and Operation Manual.

2.1.1 Removal and Assembly

If using a knife or cutting blade to open the carton, exercise caution to ensure that the blade does
not extend into the carton, but only cuts the tape holding the carton closed. Carefully unpack the
unit and ensure that all of the above items are in the carton. The RCU101 is shipped fully­assembled and does not require removal of the covers for any purpose in installation.

2.2 Mounting Considerations

When mounted in an equipment rack, adequate ventilation must be provided. The ambient
temperature in the rack should be between 10° and 35° C, and held constant for best equipment
operation. The air available to the rack should be clean and relatively dry.

2.3 Cabling
The RCU101 comes complete with all the cabling required to interface with two Upconverters or

Downconverters. Refer to Figure 2-1 to become familiar with the rear panel connectors on the
RCU101. Figure 2-2 shows a typical interconnection between two Upconverters and the RCU101.
The list of supplied cables is as follows:

P/N Description QTY

CA/3291 RS485 Equipment Interface Cable 1
CA/3292 B/U Switch Interface Cable 2

TM055 - Rev. 2.2 Page 2-1