Comtech EF Data KPA080 Installation And Operation Manual

r

KPA080

Ku-Band Solid-State Power Amplifie

Installation and Operation Manual

Part Number MN/KPA80IN.IOM Revision 0

Comtech EFData is an ISO 9001

Registered Company.

KPA080

Ku-Band Solid-State Power Amplifier

Installation and Operation Manual

Part Number MN/KPA80IN.IOM

Revision 0

December 15, 2000

Copyright © Comtech EFData, 2000. All rights reserved. Printed in the USA.

Comtech EFData, 2114 West 7th Street, Tempe, Arizona 85281 USA, [phone], FAX: [phone].

Customer Support

Contact the Comtech EFData 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 EFData
Attention: Customer Support Department
2114 West 7th Street
Tempe, Arizona 85281 USA

480.333.2200 (Main Comtech EFData Number)

480.333.4357 (Customer Support Desk)

480.333.2161 FAX

or, E-Mail can be sent to the Customer Support Department at:

[e-mail]

Contact us via the web at www.comtechefdata.com

1. To return a Comtech EFData product (in-warranty and out-of-warranty) for
repair or replacement:

2. Request a Return Material Authorization (RMA) number from the Comtech
EFData 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 EFData. (Shipping charges should be prepaid.)

For more information regarding the warranty policies, see Warranty Policy, p. x.

.

ii Rev. 0

Table of Contents

Customer Support.......................................................................................................................................................ii

About this Manual ....................................................................................................................................................vii

Conventions and References....................................................................................................................................... vii

Safety Notices ............................................................................................................................................................vii

Reporting Comments or Suggestions Concerning this Manual .................................................................................viii

European EMC Directive.......................................................................................................................................... ix

Warranty Policy.......................................................................................................................................................... x

Limitations of Warranty................................................................................................................................................ x

Exclusive Remedies...................................................................................................................................................... x

CHAPTER 1. INTRODUCTION.......................................................................................................... 1-1

1.1

1.2

1.2.1 Front Panel...................................................................................................................................................1-3

1.2.2 Front Panel Indicators..................................................................................................................................1-4

1.2.3 Built-in Redundancy Controller................................................................................................................... 1-4

1.3

CHAPTER 2. INSTALLATION ........................................................................................................... 2-1

2.1

Overview.....................................................................................................................................................1-1

Functional Description..............................................................................................................................1-3

Specifications..............................................................................................................................................1-5

Unpacking...................................................................................................................................................2-1

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

2.3

2.3.1 Rear Panel Connections...............................................................................................................................2-6

Rev. 0 iii

Installation..................................................................................................................................................2-2

External Connections ................................................................................................................................2-6

Preface KPA080 Ku-Band Solid-State Power Amplifier

2.4

CHAPTER 3. OPERATION ................................................................................................................ 3-1

3.1

3.1.1 Switching On...............................................................................................................................................3-1

3.2

3.2.1 SSPA Commands ........................................................................................................................................3-5

3.2.2 Configuration Menu.....................................................................................................................................3-9

3.2.3 Monitor Status Menu.................................................................................................................................3-11

3.2.4 Current Faults Menu..................................................................................................................................3-13

3.2.5 Stored Faults Menu....................................................................................................................................3-15

3.2.6 Utility Menu ..............................................................................................................................................3-17

CHAPTER 4. REDUNDANT CONFIGURATION ............................................................................... 4-1

4.1

4.2

4.2.1 Gain Equalization of Redundant Units........................................................................................................4-3

CHAPTER 5. REMOTE CONTROL SPECIFICATION ....................................................................... 5-1

Dimensional and Outline Diagrams.........................................................................................................2-8

General .......................................................................................................................................................3-1

Operation....................................................................................................................................................3-3

General .......................................................................................................................................................4-1

Redundancy Operation.............................................................................................................................4-1

5.1

5.2

5.3

5.4

5.5

5.5.1 Format..........................................................................................................................................................5-4

5.6

5.6.1 Direct Access...............................................................................................................................................5-5

5.6.2 Indirect Access ............................................................................................................................................5-5

5.7

5.7.1 Physical Address..........................................................................................................................................5-6

5.7.2 Virtual Address............................................................................................................................................5-6

5.7.3 Message Structure........................................................................................................................................5-6

5.7.4 Start Character.............................................................................................................................................5-6

5.7.5 Device Address............................................................................................................................................5-7

5.7.6 Command.....................................................................................................................................................5-7

5.8

5.8.1 Error Response ............................................................................................................................................5-7

5.8.2 End Of Message...........................................................................................................................................5-8

General .......................................................................................................................................................5-1

Electrical Interface....................................................................................................................................5-2

Interface Connector...................................................................................................................................5-2

Cables..........................................................................................................................................................5-3

Protocol.......................................................................................................................................................5-4

Access Methods..........................................................................................................................................5-5

Addressess ..................................................................................................................................................5-6

Confirmation Response.............................................................................................................................5-7

5.9

iv Rev. 0

Command/Response Pairs ........................................................................................................................5-9

KPA080 Ku-Band Solid-State Power Amplifier Preface

5.9.1 Utility Commands........................................................................................................................................5-9

5.9.2 Configuration Commands..........................................................................................................................5-10

5.9.3 Mode Commands.......................................................................................................................................5-11

5.9.4 Status Commands......................................................................................................................................5-12

5.9.5 Stored Alarms............................................................................................................................................5-16

5.9.6 Error Processing ........................................................................................................................................5-17

5.9.7 Configuration Errors..................................................................................................................................5-17

5.9.8 Time-Outs..................................................................................................................................................5-17

5.10 Command Summaries.............................................................................................................................5-18

CHAPTER 6. MAINTENANCE AND TROUBLESHOOTING ............................................................. 6-1

6.1

6.2

6.2.1 Test Point Samples ......................................................................................................................................6-2

6.3

APPENDIX A. PARTS LIST/WIRING DIAGRAM...............................................................................A–1

A.1

General .......................................................................................................................................................6-1

Maintenance Testing .................................................................................................................................6-2

Troubleshooting.........................................................................................................................................6-2

Parts List .................................................................................................................................................. A–1

A.2

Wiring Diagram....................................................................................................................................... A–4

Rev. 0 v

Preface KPA080 Ku-Band Solid-State Power Amplifier

Figures

Figure 1-1. KPA080..................................................................................................................................................1-1

Figure 1-2. Functional Block Diagram .....................................................................................................................1-2

Figure 2-1. Redundancy Installation.........................................................................................................................2-4

Figure 0-1. Dimensional Diagram (inches)...............................................................................................................2-9

Figure 0-3. Redundancy Outline Diagram .............................................................................................................2-10

Figure 3-1. SSPA Operating Command Functions...................................................................................................3-4

Figure 3-2A. Configuration Menu Commands (Single Configuration) ...................................................................3-7

Figure 3-3. Monitor Status Menu Commands.........................................................................................................3-10

Figure 3-4. Current Faults Menu Commands..........................................................................................................3-12

Figure 3-5. Stored Faults Menu Commands...........................................................................................................3-14

Figure 3-6. Utility Functions Menu Commands .....................................................................................................3-16

Figure 4-1. Control Cabling of a 1:1 System ............................................................................................................4-2

Figure 4-2. Control Cabling of a 1:2 System ............................................................................................................4-3

Tables

Table 1-1. Operating Functions.................................................................................................................................1-3

Table 1-2. Front Panel Indicators..............................................................................................................................1-4

Table 2-1. Cable Connections...................................................................................................................................2-3

Table 2-2. Redundancy Kit.......................................................................................................................................2-5

Table 2-3. Rear Panel Connectors.............................................................................................................................2-6

Table 2-4. Redundant Loop Interface, Connector J4 ................................................................................................2-7

Table 2-5. Customer Discrete Control, Connector J5...............................................................................................2-7

Table 2-6. EIA-232/EIA-485 Interface, Connector J6..............................................................................................2-8

Table 2-7. Waveguide Switch Interface, Connector J7.............................................................................................2-8

Table 5-1. Protocol Description...............................................................................................................................5-4

Table 5-2. Possible Time-Out Sources....................................................................................................................5-17

Table 5-3. Remote Control Summary.....................................................................................................................5-18

Table 5-4. Commands Supported by Virtual Addressing Mode.............................................................................5-19

Table 6-1. Troubleshooting.......................................................................................................................................6-3

vi Rev. 0

KPA080 Ku-Band Solid-State Power Amplifier Preface

About this Manual

This manual provides installation and operation information for the Comtech EFData
KPA080 Ku-Band Solid-State Power Amplifier. This is a technical document intended
for earth station engineers, technicians, and operators responsible for the operation and
maintenance of the KPA080.

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

WARNING

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

WARNING

• 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 ins truc tio n s.

Rev. 0 vii

Preface KPA080 Ku-Band Solid-State Power Amplifier

Metric Conversion

Metric conversion information is located on the inside back cover of this manual. This
information is provided to assi st the oper ato r in cross-referencing English to Met ric
conversions.

Recommended Standard Designations

Recommended Standard (RS) Designations have been superseded by the new designation
of the Electronic Industries Association (EIA). References to the old designations are
shown only when depicting actual text displayed on the screen of the unit (RS-232, RS­485, etc.). All other references in the manual will be shown with the EIA designations
(EIA-232, EIA-485, etc.) only.

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

.”

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 EFData Customer Support
Department.

viii Rev. 0

KPA080 Ku-Band Solid-State Power Amplifier Preface

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 Warn ing s” lis ted ea rl ier in t his

preface.

Rev. 0 ix

Preface KPA080 Ku-Band Solid-State Power Amplifier

Warranty Policy

This Comtech EFData 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
EFData 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
EFData and all related custom, taxes, tariffs, insurance, etc. Comtech EFData is
responsible for the freight charges

only

for return of the equipment from the factory to
the customer. Comtech EFData will return the equipment by the same method (i.e., Air,
Express, Surface) as the equipment was sent to Comtech EFData.

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 EFData.

No other warranty is expressed or implied. Comtech EFData 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
EFData 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 EFData has reviewed this manual thoroughly in order that it will be an easy-to­use 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 EFData 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 EFData Customer Support Department.

x Rev. 0

This chapter describes the instructions on the installation, operation and maintenance of
the KPA080-4045-I Ku-Band Solid-State High Power Amplifier (SSPA).

1.1 Overview

The KPA080-4045-I Ku-Band Solid-State High Power Amplifier is designed for use in
communication systems, or in satellite up-link data systems. The SSPA (Figure 1-1)
operates over the RF input frequency range of 14.0 to 14.5 GHZ.

Chapter 1.

INTRODUCTION

1

Rev. 0 1-1

Figure 1-1. KPA080

Introduction KPA080 Ku-Band Solid-State Power Amplifier

The RF output power is 48.5 dBm minimum at 1 dB compression. A functional block
diagram is shown in Figure 1-2.

KPA 80

OUTPUT
SAMPLE

INPUT
SAMPLE

J9

J8

BLOCK DIAGRAM

RF INPUT

AC
POWER
INPUT

J1

CUST.
GAIN
CTRL

9V #1
9V #2

-5Vdc
Interlock

-5Vdc
Interlock

-5V -12V 12V

PS #2 9Vdc

Keypad
&
Display

J6COM1

9V #1 9V #2

PS #1 9Vdc

J3

-5V -5V9V 9V

POWER CONDITIONING & CONTROL

MONITOR & CONTROL

TEMP.
COMP.

CONTROL
& MONITOR

28Vdc PS

FAN1

FAN2

+12V

-12V

AUX. PS
& SWITCH
CONTROL

OUTPUT
POWER
DETECTOR

REFLECTED
POWER
DETECTOR

RF

J2

OUTPUT
(W/G)

REDUND.

J4

LOOP

DISCRETE

J5

CONTROL

REDUND.
SWITCH

J7

CONTROL

Figure 1-2. Functional Block Diagram

The SSPA is designed to be hard mounted in a standard 19-inch (48 cm) rack or cabinet,
or to be rack mounted using Comtech EFData 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 SSPA.

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 SSPA.
Connectors for the external interface connections are located on the rear of the SSPA
chassis.

1-2 Rev. 0

KPA080 Ku-Band Solid-State Power Amplifier Introduction

1.2 Functional Description

The SSPA consists of a chassis, power supplies, fan assembly, front panel assembly,
monitor/control processor (MCP) and a Comtech EFData solid-state power amplifier
module. The amplifier is designed using a Comtech EFData low loss combining
technique and an MCP based temperature versus gain compensation.

1.2.1 Front Panel

The front panel contains a User Interface Key-Pad which is used by a local operator to
input commands to the SSPA. The keypad is used to select the configuration for
operating and monitoring the status of the SSPA.

In conjunction with the front panel two line, 24-character, LCD display, the keypad
allows the operator to select one of five configurations. The configuration functions are:

Configuration Menu

•

Monitor Status Menu

•

Currents Faults Menu

•

Stored Faults Menu

•

Utility Functions Menu

•

Refer to Table 1-1 for logical function of each keypad entry:

Table 1-1. Operating Functions

Item Function D escription Reference

[ENTER] Enters commands into the converter. ENT

CLR Clears commands and data selected and not entered. CLR

Arrow Key

→

Arrow key

←

Arrow Key

↑

Arrow Key

↓

LCD Display Displays commands and data entered into the keypad.

GREEN Indicator Prime Power is applied when the light is On. POWER ON
YELLOW Indicator Transmit function operating when the light is On. TRANSMIT ON
YELLOW Indicator In REMOTE CONTROL Mode, when the light is ON. REMOTE
YELLOW Indicator Operating On-Line to RX data when the light is On. ON-LINE

RED Indicator Fault condition exists when the light is On. FAULT
RED Indicator Faults stored and logged when the light is On. STORED FAULT

Input Sample Type N connector test point to sample RF input. SAMPLE INPUT

Output Sample Type N connector test point to sample RF output. SAMPLE OUTPUT

Selects functions and the menu operating data.
Selects functions and the menu operating data.
Selects functions and the menu operating data.
Selects functions and the menu operating data.

→
←

↑
↓

Rev. 0 1-3

Introduction KPA080 Ku-Band Solid-State Power Amplifier

1.2.2 Front Panel Indicators

There are six LED indicator lights on the front panel which indicate the status of the
SSPA and provide summary fault information. Refer to Table 1-2 for description of the
LED lamps:

Table 1-2. Front Panel Indicators

LED Lamp Condition

Fault Red Indicates that a fault condition exists when the LED light is

On.

Stored Fault Red Indicates that the fault has been logged and stored When the

LED light is On. The fault may, or may not, be active.

Power Status Green Indicates that power is applied to the SSPA when the LED

light is On.

TX ON Yellow Indicates that the transmit function of the SSPA is on when

the LED light is On. The indicator light reflects the actual
condition of the tran smit function.

Online Yellow Indicates that the SSPA is operating on-line to transmit data.

Remote Yellow Indicates that the SSPA is being operated in the remote

control mode where commands and data are transferred via
an EIA-485 (EIA-232 is optional) serial
communications link.

1.2.3 Built-in Redundancy Controller

Each SSPA 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 SSPA
is commanded into the controller mode, it monitors the online SSPA(s) for faults. A
faulted online unit may be disconnected and replaced without affecting the online power
amplifier.

1-4 Rev. 0

KPA080 Ku-Band Solid-State Power Amplifier Introduction

1.3 Specifications

Parameters Specifications

Input

Impedance
Noise Figure 10 dB Typical, 15 dB max at max

VSWR 1.25: 1 maximum
Connector SMA Female

Frequency 14.0 to 14.5 GHz
Power 48.5 dBm minimum at 1 dB

Mute 60 dB
Impedance
VSWR 1.25:1 maximum
Connector WR75G Waveguide

Linear 65 dB minimum, 68 dB Typical
Adjust 20 dB in 0.25 dB steps
Full Band
Per 40 MHz

0 to +50°C (32 to
122°F)

Third Order Intermodulat ion

Products -30 dBc Typical, -25 dBc

Output 2.0 degrees typical, 3.0 max at

Group Delay (per 40 MHz)

Linear
Parabolic
Ripple 1.0 ns Peak-t o-Peak

50Ω

gain

Output

Compression

50Ω

Gain

0.75 dB

±

-0.25 dB

±

0.50 dB at center frequency

±

1.00 dB full band

±

maximum
at 3 dB total backoff
(two tones, ∆F = 1 MHz)

AM to PM Conversion

rated output

0.03 ns/MHz

±

0.003 ns/MHz2

±

Parameters Specifications
Front Panel

Display 20 x 2 LCD
Data Entry Cursor Control Keypad
Output Sample

Input Sample

Remote Control

COM Port EIA-232 or EIA-485
Protocol ASCII

Summary Fault Form C

Power On Green
Fault Red
Stored Fault Red
TX On Yellow
Online Yellow
Remote Yellow

Envelop 8.75H x 19W x 24D inches

Weight 75 lbs (34 kg)

Temperature

Operating
Storage

Humidity

Operating
Storage

Shock Normal Commercial

Power Requirements

VAC 180 to 270 VAC, 47 to 63 Hz

Type N (f), 50Ω, –40 dBc
nominal

Type N (f), 50Ω, –20 dBc
nominal

Alarms

LED

Mechanical

(22.22H x 48.26W x 60.96D cm)

Environmental

0 to 50°C (32 to 122°F)
–40 to 70°C (–40 to 158°F)

10 to 95% Noncondensing
0 to 100% Noncondensing

Shipping and Handling

1100W nominal

Rev. 0 1-5

This page is intentionally blank.

Rev. 0 1-6

This chapter describes the instructions for unpacking and installing the KPA080-4045-I
Ku-Band Solid State High Power Amplifier

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 SSPA. The SSPA should be inspected for possible damage, and then tested
for proper operation.
If the shipment exhibits any of the following, contact Comtech EFData 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.

Chapter 2.

INSTALLATION

2

Rev. 0 2-1

Installation KPA080 Ku-Band Solid-State Power Amplifier

2.2 Installation

The SSPA is designed for installation to mount in a standard 19-inch (48 cm) rack
cabinet or enclosure. The SSPA chassis requires 8.75 inches (22 cm) of panel height
space.

Adequate air ventilation should be provided to the rack mounted equipment.

air is taken in through the front panel and exhausted out the rear panel.

Locate the SSPA so the input and output airflow paths are not obstructed or
restricted.

This will minimize the amplifier operating temperature.

If the SSPA is to be mounted on slides, the slides must be the Comtech

•

EFData rack slides provided with the SSPA. Proceed as follows:

!" Mount the slides on the sides of the SSPA chassis with the provided

mounting hardware.

!" Install the slide rails on the rack cabinet enclosure.
!" Secure the SSPA to the cabinet with four screws inserted through the

SSPA front panel slotted holes.

Cool

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 ra ted for 30 Amps.

The detachable power cord mates with the AC Prime power receptacle on the rear of the
SSPA chassis.

A power cord for connection to 180 to 270 VAC, 47 to 63 Hz, power sources is provided
with the SSPA.

2-2 Rev. 0

KPA080 Ku-Band Solid-State Power Amplifier Installation

2.2.2 Cable Connections

The cable signal functions are shown in Table 2-1.

Table 2-1. Cable Connections

Connector Function

J1 SSPA RF Input (RF). Mating connector: Type SMA Female
J2 SSPA RF Output (RF). Mating connector: WR75G
J3 AC Prime Power (Cord provided with SSPA)
J4 Redundant Loop Int erface (for use in redundant configurations)
J5 Customer Discrete Control
J6 COM 1: Serial Communications Interface, EIA-232 or EIA-485

communications links
Mating connector: Type DB9M

J7 Waveguide Switch Interface (for use in redundant configurations)

2.2.3 Optional: Redundancy Kit Installation

Comtech EFData SSPAs 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 SSPAs 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 SSPA will always act as the backup.

Rev. 0 2-3

Installation KPA080 Ku-Band Solid-State Power Amplifier

Figure 2-1. Redundancy Installation

1

2-4 Rev. 0

KPA080 Ku-Band Solid-State Power Amplifier Installation

Table 2-2. Redundancy Kit

Item No. Part No. QTY Nomenclature

AS/0435 KPA080 SSPA
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

Perform the installation as follows:

1. Assemble the waveguide load and bend to the proper port of the switch.

Note:

Remember to install a gasket between each waveguide interface (refer to

Figure 2-1).

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 SSPA. 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).

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 EFData for 1:2 redundancy kits and installati on diagram s.

Rev. 0 2-5

Installation KPA080 Ku-Band Solid-State Power Amplifier

2.3 External Connections

2.3.1 Rear Panel Connections

Refer to Table 2-3 for a list of the connectors on the rear panel.

Table 2-3. Rear Panel Connectors

Connector Description Mating Co nnecting

J1 SSPA RF Input (RF IN) Type SMA (f)
J2 SSPA RF Output (RF OUTPUT) WR75G
J3 AC Prime Power Input (AC IN)
J4 Redundant Loop Interface

(REDUND LOOP)

J5 Customer Discrete Control

(DISCRETE CONTROL)
J6 COM1 Port (EIA-232/EIA-485) (COM1) DB9M
J7 Waveguide Switch Interface

(RF SWITCH)

MS3116F14-19P

MS 3116F14-19P

MS3116F12-10P

2-6 Rev. 0

KPA080 Ku-Band Solid-State Power Amplifier Installation

2.3.1.1 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 2-4. This connector is
used only in redundant configurations.

Table 2-4. 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

2.3.1.2 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 2-5.

Table 2-5. Customer Discrete Control, Connector J5

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 SSPA #1.
C Priority 2 Sel Momentary short to pin F to set SSPA #2 as HIGH

priority.
D BU-2 Command Momentary short to pin F to force backup of SSPA #2.
E 2 Online NO Tied to pin G when Online, all other conditions OPEN.

F Remote Common Control – Remote Common.
G Online Common Online Status Common.
H BU Online NO Tied t o pin G when Online, all other condi tions OPEN.

J Manual Select Momentary short to pin F to force entire subsystem to

Manual Mode.
K 1 Online NO Tied to pin G when Online, all other conditions OPEN.
L 2 Fault NO Tied to pin N when Faulted, all other conditions OPEN.

M Priority 1 SEL Momentary short to pin F to set SSPA #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 SSPA Offline.

S 1 Fault NO Open when faulted, else tied to Pin N.

Rev. 0 2-7

Installation KPA080 Ku-Band Solid-State Power Amplifier

2.3.1.3 EIA-232/EIA-485 Interface, Connector J6

The EIA-232/EIA-485 Interface connector J6 is a 9-pin D type DB9F connector socket.
The pin-out specifications are contained in Table 2-6. The mating connector is a DB9M.

Table 2-6. EIA-232/EIA-485 Interface, Connector J6

Pin # EIA-232 EIA-485 4-W i r e EIA-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 Sign al +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

2.3.1.4 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 2-7. This connector is
used only in redundant configurations.

Table 2-7. 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

2.4 Dimensional and Outline Diagrams

Refer to Figure 2-2 for the Dimensional Diagram (all measurements shown in inches) and
to Figure 2-3 for the Redundancy Outline Diagram.

2-8 Rev. 0

KPA080 Ku-Band Solid-State Power Amplifier Installation

Rev. 0 2-9

Figure 2-2. Dimensional Diagram (inches)

REMOTE

Tx ON

8.72

7.00

OUTPUT

KPA-080

SSPA

INPUT

STORED FAULT

FAULT

POWER ON

18.25

.86

.38

SAMPLE

ON LINE

19.00 1.50

24.00
14-19S

.92

RF OUTPUT
(WR-75G)

RF OUT

SMA (F)

SWITCH

1.66

7.28

2.50

AC ENTRY

AC IN

J3

O

I

RF IN

REDUNDANT LOOP

J4

J1

GROUND LUG

DE09 (S)

10-10S

RF SWITCH

J7

DISCRETE CONTROL

COM1

J6

J5

2.00

7.06

3.19

6.65

1.31

J2

15.44

.75

16.75

14-19S