Comtech EF Data KPA-020IN, KPA-040, KPA-100, KPA-080 Installation And Operation Manual
KPA
IMPORTANT NOTE: The information contained in this document supercedes
all previously published information regarding this product. Product
specifications are subject to change without prior notice.
Ku-Band Solid-State Power Amplifier
KPA-020IN, KPA-040, KPA-080, KPA-100
Installation and Operation Manual
Part Number MN/KPA.IOM Revision 0
Comtech EF Data is an ISO 9001
Registered Company.
KPA
Ku-Band Solid-State Power Amplifier
KPA-020IN, KPA-040, KPA-080, KPA-100
Installation and Operation Manual
Part Number MN/KPA.IOM
Revision 0
September 30, 2005
Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.2161.
Copyright © Comtech EF Data, 2000. All rights reserved. Printed in the USA.
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
1. To return a Comtech EF Data product (in-warranty and out-of-warranty) for
repair or replacement:
2. Request a Return Material Authorization (RMA) number from the Comtech EF
Data Customer Support Department.
3. Be prepared to supply the Customer Support representative with the model
number, serial number, and a description of the problem.
4. To ensure that the product is not damaged during shipping, pack the product in
its original shipping carton/packaging.
5. Ship the product back to Comtech EF Data. (Shipping charges should be
prepaid.)
For more information regarding the warranty policies, see Warranty Policy, p. x.
.
ii
Table of Contents
CHAPTER 1. INTRODUCTION............................................................................................................1-1
1.1 Overview .................................................................................................................................................... 1-1
1.2 Functional Description.............................................................................................................................. 1-3
CHAPTER 2. INSTALLATION.............................................................................................................2-1
2.1 Unpacking .................................................................................................................................................. 2-1
2.2 Installation ................................................................................................................................................. 2-2
2.2.1 Prime Power Connection............................................................................................................................. 2-2
2.2.2 Cable Connections....................................................................................................................................... 2-3
2.2.3 Optional: Redundancy Kit Installation........................................................................................................ 2-3
CHAPTER 3. CONNECTOR PINS.......................................................................................................3-1
3.1 External Connections................................................................................................................................ 3-1
3.1.1 Redundant Loop Interface, Connector J4.................................................................................................... 3-2
3.1.2 Customer Discrete Control, Connector J5................................................................................................... 3-2
3.1.3 RS-232/RS-485 Interface, Connector J6 ..................................................................................................... 3-4
3.1.4
Waveguide Switch Interface, Connector J7 ................................................................................................ 3-4
3.2 Prime Power Switch .................................................................................................................................. 3-5
3.3
Dimensional and Outline Diagrams......................................................................................................... 3-5
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CHAPTER 4. OPERATION .................................................................................................................. 4-1
4.1 General....................................................................................................................................................... 4-1
4.1.1
Front Panel .................................................................................................................................................. 4-1
4.1.2 Front Panel Indicators ................................................................................................................................. 4-3
4.1.3 Switching On............................................................................................................................................... 4-4
Operation ................................................................................................................................................... 4-5
4.2
4.2.1 KPA Commands.......................................................................................................................................... 4-7
4.2.1.1 SELECT: CONFIGURATION MENU ........................................................................................................ 4-8
4.2.1.2 SELECT: MONITOR STATUS MENU .................................................................................................... 4-10
4.2.1.3 Current Faults Menu................................................................................................................................... 4-13
4.2.1.4 SELECT: STORED FAULTS MENU ....................................................................................................... 4-15
4.2.1.5 SELECT: UTILITY FUNCTIONS MENU................................................................................................ 4-16
4.2.1.6 Current Faults Menu................................................................................................................................... 4-13
CHAPTER 5.
5.1 General....................................................................................................................................................... 2-1
5.2 Redundant Operation ............................................................................................................................... 5-1
5.2.1 Control Cabling for a 1:1 System................................................................................................................ 5-2
5.2.2
Control Cabling for a 1:2 System................................................................................................................ 5-3
5.2.3 Gain Equalization of Redundant Units........................................................................................................ 5-4
CHAPTER 6.
6.1 General....................................................................................................................................................... 6-1
6.2 Electrical Interface.................................................................................................................................... 6-2
6.3 Interface Connector .................................................................................................................................. 6-2
6.4 Cables ......................................................................................................................................................... 6-3
6.5 Protocol ...................................................................................................................................................... 6-4
6.6 Access Methods.......................................................................................................................................... 6-5
6.6.1 Direct Access............................................................................................................................................... 6-5
6.6.2 Indirect Access ............................................................................................................................................ 6-5
REDUNDANT CONFIGURATION .................................................................................5-1
REMOTE CONTROL SPECIFICATION ........................................................................6-1
6.7 Addressess.................................................................................................................................................. 6-6
6.7.1 Physical Address ......................................................................................................................................... 6-6
6.7.2 Virtual Address ........................................................................................................................................... 6-6
6.7.3 Message Structure ....................................................................................................................................... 6-6
6.7.4 Start Character............................................................................................................................................. 6-6
6.7.5 Device Address ........................................................................................................................................... 6-7
6.7.6 Command .................................................................................................................................................... 6-7
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6.8 Confirmation Response............................................................................................................................. 6-7
6.8.1 Error Response ............................................................................................................................................ 6-7
6.8.2 End of Message ........................................................................................................................................... 6-8
6.8.2.1 Command Ending......................................................................................................................................... 6-8
6.8.2.2 Response Ending .......................................................................................................................................... 6-8
6.9 Command/Response Pairs........................................................................................................................ 6-9
6.9.1 Utility Commands ....................................................................................................................................... 6-9
6.9.2 Configuration Commands ......................................................................................................................... 6-10
6.9.3 Mode Commands ...................................................................................................................................... 6-11
6.9.4 Status Commands...................................................................................................................................... 6-12
6.9.5 Stored Alarms............................................................................................................................................ 6-16
6.9.6 Error Processing ........................................................................................................................................ 6-17
6.9.7 Configuration Errors ................................................................................................................................. 6-17
6.9.8 Time-Outs ................................................................................................................................................. 6-17
CHAPTER 7. MAINTENANCE AND TROUBLESHOOTING ..............................................................7-1
7.1 General....................................................................................................................................................... 7-1
7.2 Maintenance Testing ................................................................................................................................. 7-2
7.3 Troubleshooting......................................................................................................................................... 7-2
APPENDIX A . SPECIFICATIONS ........................................................................................................ A-1
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Figures
Figure 1-1. Family of Ku-Band Solid-State High Power Amplifiers ....................................................................... 1-1
Figure 1-2. Block Diagram of KPA-020IN .............................................................................................................. 1-2
Figure 1-2. Block Diagram of KPA-040 .................................................................................................................. 1-3
Figure 1-2. Block Diagram of KPA-080/100 ........................................................................................................... 1-4
Figure 2-1. Redundancy Installation......................................................................................................................... 2-4
Figure 3-1. Rear Panel (KPA-040, 080, or 100, KPA-020IN Not Shown)............................................................... 3-1
Figure 3-2. KPA-080/100 Dimensional Diagram inches) ........................................................................................ 3-7
Figure 3-3. KPA-080/100 Redundant Outline Diagram ........................................................................................... 3-9
Figure 4-1. Menu Tree.............................................................................................................................................. 4-6
Figure 5-1. Control Cabling of a 1:1 System............................................................................................................ 5-2
Figure 5-2. Control Cabling of a 1:2 System............................................................................................................ 5-3
Tables
Table 2-1. Cable Connections................................................................................................................................... 2-3
Table 2-2. Redundancy Kit (AS/0435) ..................................................................................................................... 2-5
Table 2-3. Redundancy Kit (KPA-040).................................................................................................................... 2-5
Table 3-1. Rear Panel Connectors ............................................................................................................................ 3-1
Table 3-2. Redundant Loop Interface, Connector J4 ................................................................................................ 3-2
Table 3-3. Customer Discrete Control, Connector J5............................................................................................... 3-2
Table 3-3a. Customer Discrete Control, Connector J5............................................................................................. 3-3
Table 3-4. RS-232/RS-485 Interface, Connector J6 ................................................................................................. 3-4
Table 3-5. Waveguide Switch Interface, Connector J7 ............................................................................................ 3-4
Table 4-1. Operating Functions ................................................................................................................................ 4-2
Table 4-2. Front Panel Indicators ............................................................................................................................. 4-3
Table 6-1. Protocol Description................................................................................................................................ 6-4
Table 6-2. Possible Time-Out Sources ................................................................................................................... 6-17
Table 7-1. Troubleshooting ...................................................................................................................................... 7-3
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About this Manual
This manual provides installation and operation information for the Comtech EF Data
Ku-Band Solid-State Power Amplifier, KPA-020IN, KPS-040, KPA080, and KPA100.
This is a technical document intended for earth station engineers, technicians, and operators
responsible for the operation and maintenance of the KPA.
Conventions and References
Cautions and Warnings
CAUTION indicates a hazardous situation that, if not avoided, may result in
minor or moderate injury. CAUTION may also be used to indicate other
CAUTION
WARN ING
unsafe practices or risks of property damage.
WARNING indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
Safety Notices
This equipment has been designed to minimize exposure of personnel to hazards. The operators
and technicians must:
CAUTION
WARN ING
IMPORTANT
• Know how to work around, with, and on high voltage and high RF power
level equipment.
• Exercise every precaution to ensure personnel safety.
• Exercise extreme care when working near high voltages/high RF power
level equipment.
• Be familiar with the warning presented in this manual.
• Disconnect the power supply cord before servicing the SSPA.
Lithium Battery Replacement: There is a damage that the Lithium battery
on the M&C assembly will explode if the battery is incorrectly replaced.
Replace only with the same or equivalent type battery recommended by the
manufacturer. Dispose of used batteries according to the Lithium battery
manufacturer’s instructions.
Indicates information critical for proper equipment function.
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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 Non-Metric to Metric
conversions.
Military Standards
References to “MIL-STD-188” apply to the 114A series (i.e., MIL-STD-188-114A), which
provides electrical and functional characteristics of the unbalanced and balanced voltage digital
interface circuits applicable to both long haul and tactical communications. Specifically, these
references apply to the MIL-STD-188-114A electrical characteristics for a balanced voltage
digital interface circuit, Type 1 generator, for the full range of data rates. For more information,
refer to the Department of Defense (DOD) MIL-STD-188-114A, “Electrical Characteristics of
Digital Interface Circuits.”
Recommended Standard Designations
Recommended Standard (RS) Designations is equivalent to the new designation of the Electronic
Industries Association (EIA). All references in the manual will be shown either has the EIA
designations (EIA-232, EIA-485, etc.) or the RS designations..
Trademarks
Windows is a trademark of the Microsoft Corporation.
Other 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:
tpubs@comtechefdata.com
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European EMC Directive
In order to meet the European Electro-Magnetic Compatibility (EMC) Directive (EN55022,
EN50082-1), properly shielded cables for DATA I/O are required. More specifically, these cables
must be shielded from end-to-end, ensuring a continuous ground shield.
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
!
International Symbols:
ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung
Alternating Current.
Fuse.
Safety Ground.
Chassis Ground.
Note: For additional symbols, refer to “Cautions and Warnings” listed earlier in this preface.
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Warranty Policy
This Comtech EF Data product is warranted against defects in material and workmanship for a
period of 2 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 in order that it will be 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 your equipment or the information in this manual, please
contact the Comtech EF Data Customer Support Department.
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NOTES:
xi
Chapter 1. Introduction
1.1 Overview
The Ku-Band Solid-State High Power Amplifier (KPA) is designed for use in
communication systems, or in satellite up-link data systems. The KPA (Figure 1-1)
operates over the RF input frequency range of 14.0 to 14.5 GHZ.
1.2 Functional Description
The KPA is designed to be hard mounted in a standard 19-inch (48 cm) rack or cabinet,
or to be rack mounted using Comtech EF Data slide mechanisms provided with the SSPA
to allow it to be serviced without its removal from the rack. Two internally mounted
exhaust fans are mounted on the chassis for cooling. An AC power connector, with an
On/Off switch, is located on the rear on the chassis. A six-foot AC power cord is supplied
with the unit.
All operator controls, indicators, and displays for local and remote operation as well as
the RF Input and Output sample test ports are located on the front panel of the unit.
Connectors for the external interface connections are located on the rear of the unit
chassis.
The KPA (Figures 1-2, 1-3, or 1-4) consists of a chassis, power supply, fan assembly,
front panel assembly, monitor/control processor (MCP) and a Comtech EF Data solidstate power amplifier (SSPA) module. The KPA is designed using a Comtech EF Data
low loss combining technique and an MCP based temperature versus gain compensation.
The front panel contains a user-friendly LCD menu display and cursor control key in
order to display status or change parameters. The front panel also has LEDs for quick
reference to binary status points and both input and output sample ports at –20 dBc and
–40 dBc for easy test point access.
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Each unit has the ability to function as a 1+1 or 1+2 redundancy controller in the backup
mode. The optional redundancy configuration is implemented by attaching a ganged
Waveguide/coax transfer switch (es) to input and output connectors of the amplifiers with
a combination coaxial cable and Waveguide kit.
When the backup KPA is commanded into the controller mode, it monitors the online
KPA’s for faults. A faulted online unit may be disconnected and replaced without
affecting the online power amplifier.
KPA-020IN
KPA-040
KPA-080
KPA-100
Figure 1-1. Family of KU-Band Solid-State Power Amplifiers
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Figure 1-2. Block Diagram of KPA-020IN
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Figure 1-3. Block Diagram of KPA-040
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OUTPUT
SAMPLE
INPUT
SAMPLE
RF INPUT
AC
POWER
INPUT
J9
J8
J1
CUST.
GAIN
CTRL
9V #1
9V #2
-5Vdc
Interloc k
Keypad
&
Display
J6COM1
-5Vdc
9V #1 9V #2
PS #1 9Vdc
J3
Interloc k
-5V -12V 12V
PS #2 9Vdc
-5V -5V9V 9V
POWER CONDITIONING & CONTROL
MONITOR & CONTROL
BLOCK DIAGRAM
TEMP.
COMP.
CONTROL
& MONITOR
FAN1
FAN2
28Vdc PS
+12V
-12V
AUX. P S
& SWITCH
CONTROL
OUTPUT
POWER
DETECTOR
REFLECTED
POWER
DETECTOR
RF
J2
OUTPUT
(W/G)
REDUND.
J4
LOOP
DISCRETE
J5
CONTROL
REDUND.
SWITCH
J7
CONTROL
Figure 1-4. Block Diagram of KPA-080 /-100
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Notes:
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1-6
Chapter 2. Installation
2.1 Unpacking
Perform a receiving inspection as follows:
• Inspect the shipping container for damage. The shipping container and packing
materials should be retained for possible reshipment.
• Check to determine that all parts, materials and documentation have been shipped
with the KPA. The KPA should be inspected for possible damage, and then tested for
proper operation.
• If the shipment exhibits any of the following, contact Comtech EF Data Customer
Support:
♦ Incomplete
♦ Mechanical damage
♦ Inoperable
If there is damage to the shipping container, notify the carrier. Retain all shipping
materials for inspection by the carrier.
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2.2 Installation
The KPA is designed for installation to mount in a standard 19-inch (48 cm) rack cabinet
or enclosure. The KPA chassis requires 8.75 inches (22 cm) of panel height space.
Adequate air ventilation should be provided to the rack mounted equipment. Cool
air is taken in through the front panel and exhausted out the rear panel.
Locate the KPA so the input and output airflow paths are not obstructed or
restricted. This will minimize the amplifier operating temperature.
• If the KPA is to be mounted on slides, the slides must be the Comtech EF
Data rack slides provided with the KPA. Proceed as follows:
Mount the slides on the sides of the KPA chassis with the provided
mounting hardware.
Install the slide rails on the rack cabinet enclosure.
Secure the KPA to the cabinet with four screws inserted through the
KPA front panel slotted holes.
2.2.1 Prime Power Connection
The On/Off prime power switch is located on the rear of the chassis adjacent to the prime
power input connector. The circuit breaker is rated for 30 Amps.
The detachable power cord mates with the AC Prime power receptacle on the rear of the
KPA chassis.
Power Cord
For KPA-020IN only:
For KPA-040 only:
For KPA-080/100 only:
A power cord for connection to 90 to 135 VAC, 47 to 63 Hz, power
sources is provided with the KPA.
A power cord for connection to 90 to 270 VAC, 47 to 63 Hz, power
sources is provided with the KPA.
A power cord for connection to 180 to 270 VAC, 47 to 63 Hz, power
sources is provided with the KPA.
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2.2.2 Cable Connections
The cable signal functions are shown in Table 2-1.
Table 2-1. Cable Connections
Connector Function
J1 KPA RF Input (RF). Mating connector: Type SMA Female
J2 KPA RF Output (RF). Mating connector: WR75G
J3 AC Prime Power (Cord provided with KPA)
J4 Redundant Loop Interface (for use in redundant configurations)
J5 Customer Discrete Control
J6 COM 1: Serial Communications Interface, RS-232 or RS-485
communications links
Mating connector: Type DB9M
J7 Waveguide Switch Interface (for use in redundant configurations)
2.2.3 Optional: Redundancy Kit Installation
Comtech EF Data KPAs are easily configured for redundant systems by using one of the
optional Redundant Cable Kits. These kits include all the necessary controls, semi-rigid,
and waveguide cabling, and appropriate waveguide/coax switches and terminations.
Figure 2-1 shows the typical 1:1 installation and Table 2-2 shows the associated parts list.
The primary and backup KPAs shall be installed next to each other in a standard 19-inch
(48 cm) equipment rack. Because of the configuration of the dual WG-Coax Switch, the
upper KPA will always act as the backup.
Install a gasket between each waveguide interface. If both waveguide
surfaces are grooved, use a “thick” gasket. If only one surface is grooved,
IMPORTANT
use a “thin” gasket.
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Figure 2-1. Redundancy Installation
1
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Table 2-2. Redundancy Kit (AS/0435)
Item No. Part No. QTY Nomenclature
10 CA/RF0075 1 Cable, SW P3 to Upper J1, Red Kit, 1:1
20 CA/RF0076 1 Cable, SW P2 to Lower J1, Red Kit, 1:1
30 CA/RF0065 1 Cable, SW P4 to Isolator, Red Kit. 1:1
40 CA/WR0006 1 Cable, Redundant Loop
50 CA/WR0007 1 Cable, Waveguide Switch to B-UP J7
60 CN/CX2001-6501-00 1 Connector, OSM, SMS, Plug Termination
70 FP/BR0042 1 Bracket, Mounting, Isolator, Red Kit 1:1
80 FP/WG0045 1 Waveguide, WR75, Upper, 90, Red Kit 1:1
90 FP/WG0046 1 Waveguide, WR75, Lower, 90, Red Kit 1:1
100 FP/WG0024 1 Waveguide, WR75, Elbow, 90, Red Kit 1:1
110 FP/WG0025 1 Waveguide, WR75, Termination, 150W, Red Kit, 1:1
120 GA/GSKT,WR75,FULL 7 Gasket, WR75, Full THK
130 HW/080/3/16PHMS 2 0-80 x 3/16 PHM Screw, SS
140 HW/632X3/8SHCS-B 32 Screw, 6-32 x 3/8 SHCS, Black
150 HW/06LOCK 32 #6 Lock Washer, SS
160 RF/ISHF037306-001 1 RF-ISO, 13-16G, SMS-FF
170 SW/WG-754A0 1 SW-WR75, O-Ring, Dual WGSMA
180 XX/P-SUPER O-LUBE AR Parker Super, O-Lube, 2 oz
Table 2-3. Redundancy Kit (KPS-040)
Item No. Part No. QTY Nomenclature
10 CA/RF0063 1 Cable, SW P3 to Upper J1, Red Kit, 1:1
20 CA/RF0064 1 Cable, SW P2 to Lower J1, Red Kit, 1:1
30 CA/RF0065 1 Cable, SW P4 to Isolator, Red Kit. 1:1
40 CA/WR0006 1 Cable, Redundant Loop
50 CA/WR0007 1 Cable, Waveguide Switch to B-UP J7
60 CN/CX2001-6501-00 1 Connector, OSM, SMS, Plug Termination
70 FP/BR0042 1 Bracket, Mounting, Isolator, Red Kit 1:1
80 FP/WG0022 1 Waveguide, WR75, Upper, 90, Red Kit 1:1
90 FP/WG0023 1 Waveguide, WR75, Lower, 90, Red Kit 1:1
100 FP/WG0024 1 Waveguide, WR75, Elbow, 90, Red Kit 1:1
110 FP/WG0025 1 Waveguide, WR75, Termination, 100W, Red Kit, 1:1
120 GA/GSKT,WR75,FULL 7 Gasket, WR75, Full THK
130 HW/1.6 MM 2 1.6MM Screw
140 HW/632X3/8SHCS-B 32 Screw, 6-32 x 3/8 SHCS, Black
150 HW/06LOCK 32 #6 Lock Washer, SS
160 RF/ISQC140145-1FF 1 RF-ISO, 13-16G, SMS-FF
170 SW/WG-3SAG 1 SW-WR75, O-Ring, Dual WGSMA
180 XX/P-SUPER O-LUBE AR Parker Super, O-Lube, 2 oz
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Perform the installation as follows:
Step Procedure
1 Assemble the waveguide load and bend to the proper port of the switch.
2 Attach the rigid lower waveguide arm, using the supplied screws. The switch should be
installed with “Port 1” facing outward.
3 The upper Waveguide (flexible arm) along with the isolator bracket should be installed
next.
4 Complete the installation by attaching the coaxial cables, coaxial load, and control
cables.
5 Note that the installation of the control cables determines which unit will function as the
backup KPA. Due to the nature of the dual WG-coax switch, this will always be the
upper unit. Therefore, the end of the redundant loop cable (40, Figure 2-1) labeled “BU
SSPA,” should be connected to J4 of the upper (back-up) unit.
6 The appropriate end of the control cable attaching to the Waveguide switch (50) should
also be attached to the backup unit (J7).
Note: Redundancy kits with all the cabling and switches for a 1:2 configuration also are
available, and are usually designed to a particular customer’s specifications. Contact
Comtech EF Data for 1:2 redundancy kits and installation diagrams.
2-6
Chapter 3. CONNECTOR PINOUTS
3.1 External Connections
Figure 3-1. Rear Panel (KPA-040, 080, or 100, KPA-020IN Not Shown)
Connector Description Mating Connecting
J1 RF Input (RF IN) Type SMA (f)
J2 RF Output (RF OUTPUT) WR75G
J3 AC Prime Power Input (AC IN)
J4 Redundant Loop Interface
J5 Customer Discrete Control
J6 COM1 Port (RS-232/RS-485) (COM1) DB9M
J7 Waveguide Switch Interface
AC Power On/Off Switch
3-1
Table 3-1. Rear Panel Connectors
MS3116F14-19P
(REDUND LOOP)
MS 3116F14-19P
(DISCRETE CONTROL)
MS3116F12-10P
(RF SWITCH)
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Installation MN/KPA.IOM
3.1.1 Redundant Loop Interface, Connector J4
The Redundant Loop Interface connector J4 is a 19-pin circular connector, type
MS3112E14-19S. The pin-out specification is contained in Table 3-2. This connector is
used only in redundant configurations.
Table 3-2. Redundant Loop Interface, Connector J4
Pin # Description Pin # Description
A Loop In 1 L Sumflt 2 NO
B ADDR 2 M SumFlt 2 Common
C Loop In 2 N Local Loop Out
D Loop Out 2 P Sumflt 1 NO
E ADDR Common R Sumflt 1 Common
F ADDR 1 S Local Sumflt Common
G Loop Out 1 T Local Sumflt NO
H HSB +RX/TX U No Connect
J HSB – RX/TX V No Connect
K Local Loop In
3.1.2 Customer Discrete Control, Connector J5
The Customer Discrete Control connector J5 is a 19-pin circular connector, type
MS3112E14-19S. The pin-out specification is contained in Table 3-3 or Table 3-3a..
Table 3-3. Customer Discrete Control, Connector J5
(Stand-alone or 1:1 System)
Pin # Signal Name Description
A Auto Select Momentary short to pin F to force entire subsystem to
Auto Mode.
B BU-1 Command Momentary short to pin F to force backup of KPA #1.
C Priority 2 Sel Not applicable for 1:1 system
D BU-2 Command Not applicable for 1:1 system
E 2 Online NO Not applicable for 1:1 system
F Remote Common Control – Remote Common.
G Online Common Online Status Common.
H BU Online NO Open when Online, all other conditions tied to Pin G.
J Manual Select Momentary short to pin F to force entire subsystem to
Manual Mode.
K 1 Online NO Open when Online, all other conditions tied to Pin G.
L 2 Fault NO Not applicable for 1:1 system
M Priority 1 SEL Momentary short to pin F to set KPA #1 as High priority.
N Fault Common Fault Status Common.
P BU Fault NO Open when faulted, else tied to Pin N.
R BU Offline CMD Momentary short to pin F to force backup KPA Offline.
S 1 Fault NO Open when faulted, else tied to Pin N.
3-2
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Table 3-3a. Customer Discrete Control, Connector J5
(Redundant System 1:N )
Pin # Signal Name Description
A Auto Select Momentary short to pin F to force entire subsystem to
Auto Mode.
B BU-1 Command Momentary short to pin F to force backup of KPA #1.
C Priority 2 Sel Momentary short to pin F to set KPA #2 as HIGH priority.
D BU-2 Command Momentary short to pin F to force backup of KPA #2.
priority.
E 2 Online NO Open when Omnline, all other conditions tied to pin G.
see Note 1.
F Remote Common Control – Remote Common.
G Online Common Online Status Common.
H BU Online NO Tied to pin G when Redundancy functioning correctly, all
other conditions OPEN. See Note 2.
J Manual Select Momentary short to pin F to force entire subsystem to
Manual Mode.
K 1 Online NO Open when Online, all other conditions tied to Pin G. see
Note 1.
L 2 Fault NO Open when faulted, else tied to Pin N.
M Priority 1 SEL Momentary short to pin F to set KPA #1 as HIGH priority.
N Fault Common Fault Status Common.
P BU Fault NO Open when faulted, else tied to Pin N.
R BU Offline CMD Momentary short to pin F to force backup KPA Offline.
S 1 Fault NO Open when faulted, else tied to Pin N.
Notes:
1. Online status subject to state of Pin H.
2. When Open, can indicate loss of power or cabling problem. Online State of
unit not determinable when open.
3-3
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3.1.3 RS-232/RS-485 Interface, Connector J6
The RS-232/RS-485 Interface connector J6 is a 9-pin D type DB9F connector socket. The
pin-out specifications are contained in Table 3-4. The mating connector is a DB9M.
Table 3-4. RS-232/RS-485 Interface, Connector J6
Pin # RS-232 RS-485 4-Wire RS-485 2-Wire
1 No Connect Ground (GND) Ground (GND)
2 Transmit Data (TD) No Connect No Connect
3 Receive Data (RD) No Connect No Connect
4 No Connect +TX Signal +RX/TX Signal
5 Ground (GND) -TX Signal -RX/TX Signal
6 Unit Ready – always high
(DSR)
7 Request to Send. Looped
to CTS (RTS)
8 Clear to Send (CTS) +RX Signal +RX/TX Signal
9 No Connect -RX Signal -RX/TX Signal
No Connect No Connect
No Connect No Connect
3.1.4 Waveguide Switch Interface, Connector J7
The waveguide switch interface connector J7 is a 10-pin circular connector, type
MS3112E12-10S. The pin-out specification is contained in Table 3-5. This connector is
used only in redundant configurations.
Table 3-5. Waveguide Switch Interface, Connector J7
Pin # Description
A Command BU-1
B Command Common
C Command 1 Online
D IND 1 Online
E IND Common
F IND BU Online
G Command BU-2
H Command BU-2
J IND 2 Online
K No Connect
3-4
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Installation MN/KPA.IOM
3.2 Prime Power Switch
The On/Off Prime Power Switch is located on the rear of the chassis adjacent to the
Prime Power input connector. The circuit breaker is rated for 30 amps.
3.3 Dimensional and Outline Diagrams
KPA-020IN: Refer to Figure 3-2 for the Dimensional Diagram (all measurements shown
in inches)
KPA-080/100 only. Refer to Figure 3-3for the Dimensional Diagram (all measurements
shown in inches) and to Figure 3-4 for the Redundancy Outline Diagram.
3-5
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