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Comtech EF Data KPA-020IN Installation And Operation Manual

Ku-band solid-state power amplifier
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KPA
Ku-Band Solid-State Power Amplifier
KPA-020IN, KPA-040, KPA-080, KPA-100

Installation and Operation Manual

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.
Part Number MN/KPA.IOM Revision 0

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Summary of Contents for Comtech EF Data KPA-020IN

  • Page 1: Installation And Operation Manual

    Ku-Band Solid-State Power Amplifier KPA-020IN, KPA-040, KPA-080, KPA-100 Installation and Operation Manual 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. Part Number MN/KPA.IOM Revision 0...
  • Page 3 Revision 0 Comtech EF Data is an ISO 9001 September 30, 2005 Registered Company. Copyright © Comtech EF Data, 2000. All rights reserved. Printed in the USA. Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.2161.

  • Page 4: Customer Support

    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.

  • Page 5: Table Of Contents

    Table of Contents CHAPTER 1. INTRODUCTION......................1-1 Overview ..............................1-1 Functional Description..........................1-3 CHAPTER 2. INSTALLATION ......................2-1 Unpacking ..............................2-1 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 External Connections ..........................
  • Page 6 Ku-Band Solid-State Power Amplifier Revision 0 Preface MN/KPA.IOM CHAPTER 4. OPERATION ........................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 4.2.1 KPA Commands............................4-7 4.2.1.1 SELECT: CONFIGURATION MENU ......................4-8 4.2.1.2 SELECT: MONITOR STATUS MENU ....................
  • Page 7 Ku-Band Solid-State Power Amplifier Revision 0 Preface MN/KPA.IOM 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 Command/Response Pairs ........................6-9 6.9.1 Utility Commands ............................6-9 6.9.2 Configuration Commands .........................
  • Page 8 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.

  • Page 9: About This Manual

    Preface MN/KPA.IOM 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.
  • Page 10 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 viii...
  • Page 11 Ku-Band Solid-State Power Amplifier Revision 0 Preface MN/KPA.IOM 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>...

  • Page 12: 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.
  • Page 13 Ku-Band Solid-State Power Amplifier Revision 0 Preface MN/KPA.IOM NOTES:...

  • Page 14: Chapter 1. Introduction

    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.
  • Page 15 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...

  • Page 16: Figure 1-2. Block Diagram Of Kpa-020In

    Ku-Band Solid-State Power Amplifier Revision 0 Introduction MN/KPA.IOM Figure 1-2. Block Diagram of KPA-020IN...
  • Page 17 Ku-Band Solid-State Power Amplifier Revision 0 Introduction MN/KPA.IOM Figure 1-3. Block Diagram of KPA-040...

  • Page 18: Block Diagram

    Ku-Band Solid-State Power Amplifier Revision 0 Introduction MN/KPA.IOM BLOCK DIAGRAM OUTPUT SAMPLE INPUT SAMPLE RF INPUT OUTPUT (W/G) CUST. TEMP. GAIN COMP. CTRL OUTPUT REFLECTED 9V #1 POWER POWER DETECTOR 9V #2 DETECTOR POWER CONDITIONING & CONTROL -5Vdc Interlock CONTROL &...
  • Page 19 Ku-Band Solid-State Power Amplifier Revision 0 Introduction MN/KPA.IOM Notes: ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________...

  • Page 20: Chapter 2. Installation

    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 ♦...

  • Page 21: Installation

    The detachable power cord mates with the AC Prime power receptacle on the rear of the KPA chassis. Power Cord For KPA-020IN only: A power cord for connection to 90 to 135 VAC, 47 to 63 Hz, power sources is provided with the KPA.

  • Page 22: Cable Connections

    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.

  • Page 23: Figure 2-1. Redundancy Installation

    Ku-Band Solid-State Power Amplifier Revision 0 Installation MN/KPA.IOM Figure 2-1. Redundancy Installation...

  • Page 24: Table 2-2. Redundancy Kit (As/0435)

    Ku-Band Solid-State Power Amplifier Revision 0 Installation MN/KPA.IOM Table 2-2. Redundancy Kit (AS/0435) Item No. Part No. Nomenclature CA/RF0075 Cable, SW P3 to Upper J1, Red Kit, 1:1 CA/RF0076 Cable, SW P2 to Lower J1, Red Kit, 1:1 CA/RF0065 Cable, SW P4 to Isolator, Red Kit. 1:1 CA/WR0006 Cable, Redundant Loop CA/WR0007...
  • Page 25 (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.

  • Page 26: Chapter 3. Connector Pins

    Chapter 3. CONNECTOR PINOUTS External Connections Figure 3-1. Rear Panel (KPA-040, 080, or 100, KPA-020IN Not Shown) Table 3-1. Rear Panel Connectors Connector Description Mating Connecting RF Input (RF IN) Type SMA (f) RF Output (RF OUTPUT) WR75G AC Prime Power Input (AC IN)

  • Page 27: Redundant Loop Interface, Connector J4

    Ku-Band Solid-State Power Amplifier Revision 0 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.

  • Page 28: Table 3-3A. Customer Discrete Control, Connector J5

    Ku-Band Solid-State Power Amplifier Revision 0 Installation MN/KPA.IOM Table 3-3a. Customer Discrete Control, Connector J5 (Redundant System 1:N ) Pin # Signal Name Description Auto Select Momentary short to pin F to force entire subsystem to Auto Mode. BU-1 Command Momentary short to pin F to force backup of KPA #1.

  • Page 29: Rs-232/Rs-485 Interface, Connector J6

    Ku-Band Solid-State Power Amplifier Revision 0 Installation MN/KPA.IOM 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.

  • Page 30: Prime Power Switch

    Prime Power input connector. The circuit breaker is rated for 30 amps. 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...
  • Page 31 Ku-Band Solid-State Power Amplifier Revision 0 Installation MN/KPA.IOM NOTES:...
  • Page 32 Ku-Band Solid-State Power Amplifier Revision 0 Installation MN/KPA.IOM Figure 3-2. KPA-020IN Dimensional Diagram (inches)
  • Page 33 Ku-Band Solid-State Power Amplifier Revision 0 Installation MN/KPA.IOM NOTES:...
  • Page 34 AC ENTRY Figure 3-3. KPA080/100 Dimensional Diagram (inches) Comtech EF Data reserves the right to make changes to specifications of products described in this document at any time without notice and without obligation to notify any person of such changes.
  • Page 35 RF IN RF OUT COAX SSPA Comtech EF Data reserves the right to make changes to specifications of BLOCK DIAGRAM products described in this document at any time without notice and without obligation to notify any person of such changes.

  • Page 36: Chapter 4. Operation

    Chapter 4. Operation General The front panel of the KPA has a keypad for the operator input commands, an LCD Display, LED status indicators, and connector test sample ports to monitor the RF input and output signals. 4.1.1 Front Panel The front panel contains a User Interface keypad which is used by a local operator to input commands to the KPA.

  • Page 37: Table 4-1. Operating Functions

    Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM Refer to Table 4-1 for logical function of each keypad entry: Table 4-1. Operating Functions Item Function Description Reference [ENTER] Enters commands into the converter. Clears commands and data selected and not entered. Arrow Key Selects functions and the menu operating data.

  • Page 38: Front Panel Indicators

    Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM 4.1.2 Front Panel Indicators There are six LED indicator lights on the front panel which indicate the status of the KPA and provide summary fault information. Refer to Table 4-2 for description of the LED lamps: Table 4-2.

  • Page 39: Switching On

    Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM 4.1.3 Switching On Prior to positioning the Prime Power Switch to On, perform the following: 1. Check to ensure that the installation is complete. 2. Verify that the KPA is connected to the proper prime power source, RF input, and RF output.

  • Page 40: Operation

    Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM Operation Local control of the unit is controlled by operator input commands initiated through the six button keypad on the front panel. The keypad is the local operator’s interface to control, configure and monitor the status of the KPA. Operator inputs and commands entered into the keypad are displayed by the front panel, 24-character, 2-line LCD display.

  • Page 41: Figure 4-1. Menu Tree

    Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM Select CONFIG CONFIG ATTENUATION MONITOR ENTRY CURRENT FAULT STORED REDUNDANCY UTILITY PRIORITY ATTENUATION OPERATING MODE AMPLIER ON/ MUTE OFF SSPA #1 REDUNDANCY MONITOR SSPA #/ BU +12V OPERATING MODE AMPLIFIER MANUAL FORWARD SSPA # 1 RF FET OFFSET/ACTIVATE...

  • Page 42: Kpa Commands

    Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM 4.2.1 KPA Commands When the prime power is turned On, the LCD display will contain a message indicating the KPA model number and the version number of the firmware installed in the KPA. To select a Command Function press the <ENT>...

  • Page 43: Select: Configuration Menu

    Amplifier Control supply voltage to RF FETS. The default mode is On Mute Provide KPA mute control. The default is OFF. For KPA-020IN Only: SELECT: CONFIGURATION MENU: AMPLIFIER AMPLIFIER Amplifier Control supply voltage to RF FETS. The Amplifier display is either ON, MUTE, or OFF.
  • Page 44 Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM SELECT: CONFIGURATION MENU: FAULT RECOVERY -FAULT-RECOVERY:-MANUAL- ------------------------ Fault Recovery is MANUAL or AUTO. The default is AUTO. SELECT: CONFIGURATION MENU: REDUNDANCY CONFIGURATION -REDUNDANCY-CONFIG?-ON— --SSP-#-BU—1:02—P=1-- This menu window provides indication of the operating mode (i.e. standalone or redundancy).

  • Page 45: Select: Monitor Status Menu

    ---------SELECT--------- --MONITOR-STATUS-MENU--- Monitors and displays the status of: • All SSPA Power Supplies • SSPA Internal Temperature • RF Output Power Level • For KPA-040 Only: RF FET (Q1 through Q14) • For KPA-020IN/080/100: RF FET (Q1 through Q27) 4-10...
  • Page 46 Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM For KPA-080/100: SELECT: MONITOR STATUS MENU ---------SELECT--------- --MONITOR-STATUS-MENU--- SELECT: MONITOR STATUS MENU: +12 +12=+12.2-----12V=-12.0 --VCC=4.9------5V=-4.9-- SELECT: MONITOR STATUS MENU: +12V ----28-VDC-PS-=-27.9 9VPS1=9.1 9VPS2=9.0 SELECT: MONITOR STATUS MENU: 28VDC ----28-VDC-PS-=-27.9 9VPS1=9.1 9VPS2=9.0 SELECT: MONITOR STATUS MENU: AMPLIFIER --AMPLIFIER-TEMP=+44C--- ------------------------ SELECT: MONITOR STATUS MENU: FORWARD...
  • Page 47 Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM SELECT: MONITOR STATUS MENU: RF FET --RF-FET----Q1-=-XXXmA --RF-FET----Q2-=-XXXmA --RF-FET----Q3-=-X.X-AMPS --RF-FET----Q4-=-X.X-AMPS --RF-FET----Q5-=-X.X-AMPS --RF-FET----Q6-=-X.X-AMPS --RF-FET----QX-=-X.X-AMPS --RF-FET----QX-=-X.X-AMPS --RF-FET----Q26-=-X.X-AMPS --RF-FET----Q27-=-X.X-AMPS 4-12...

  • Page 48: Current Faults Menu

    --CURRENT-FAULTS-MENU--- Displays the status of the current fault conditions. The LCD display will indicate “FT” when a fault condition exists. The display will indicate “OK” when a fault has not occurred. KPA-020IN Only: SELECT: CURRENT FAULTS: POWER FAULTS Power–Faults:----+12V=OK -12V=OK-VCC=OK---5V=OK-...
  • Page 49 Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM KPA-040/-080/-100 ONLY: SELECT: CURRENT FAULTS: POWER FAULTS Power–Faults:----+12V=OK -12V=OK-VCC=OK---5V=OK- -----28-VDC-PS-=-OK----- ------9-VDC-PS-=-OK----- Displays the DC voltage power supply faults. The DC voltage displayed are: • +12 VDC • -12 VDC • • -5 VDC •...

  • Page 50: Select: Stored Faults Menu

    Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM 4.2.1.4 SELECT: STORED FAULTS MENU The KPA displays a total of 100 faults with a date/time stamped and stored in memory as they occur. The stored faults remain in memory until a Clear commanad is entered. SELECT: STORED FAULTS MENU: TOTAL STORED FAULTS TOTAL-FAULTS-STORED: 100 LAST-19:20:05---02/15/95...

  • Page 51: Select: Utility Functions Menu

    Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM 4.2.1.5 SELECT: UTILITY FUNCTIONS MENU ---------SELECT--------- --UTILITY-FUNCTION-MENU-- The local operator can input commands to the following Utility Functions Menu which are displayed on the LCD display. SELECT: UTILITY FUNCTIONS MENU: TIME/DATE ----TIME:-10:20:05Am---- -----date—09/15/94------ Military time is displayed in Hours, Minutes, and Seconds.

  • Page 52: Lamp Test

    Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM SELECT: UTILITY FUNCTIONS MENU: DISPLAY CONTRAST -DISPLAY-CONTRAST-=XX— DISPLAY-BRIGHTNESS-=-XX- The default is 15, with values range of 0 to 30. Brightness default is 15 with values ranging from 0 to 30. SELECT: UTILITY FUNCTIONS MENU: FORWARD FORWARD –RF-POWER-MONITOR ----OFFSET-=-+0.OdBm This function allows the operator to calibrate (fine tune) the RF Power Monitor for a...
  • Page 53 Ku-Band Solid-State Power Amplifier Revision 0 Operation MN/KPA.IOM Notes: ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________...

  • Page 54: Chapter 5. Redundant Configuration

    Configuration General All Comtech EF Data KPAs are designed to operate in both stand-alone and redundant configurations. Every KPA contains the circuitry and logic necessary to perform all the functions of a backup controller in both a 1:1 and 1:2 configuration. This includes the ability to monitor and control up to two RF waveguide switch assemblies.

  • Page 55: Control Cabling For A 1:1 System

    Ku-Band Solid-State Power Amplifier Revision 0 Redundant Configuration MN/KPA.IOM 5.2.1 Control Cabling for a 1:1 System Figure 5-1. Control Cabling of a 1:1 System The position of the waveguide/coax switch also is automatically changed to route the signal through the backup unit, thereby minimizing the loss of traffic. Control cable assemblies are required to set up either a 1:1 or a 1:2 system (other RF coaxial cables and waveguides are required as shown in Figure 5-1).

  • Page 56: Figure 5-2. Control Cabling Of A 1:2 System

    Redundant Configuration MN/KPA.IOM This connector is labeled KPA #2. When connected to a Comtech EF Data KPA, the KPA will automatically configure itself as Primary KPA #2. The second control cable attaches from the Backup Unit J7 to the Waveguide switch.

  • Page 57: 5.2.3 Gain Equalization Of Redundant Units

    Ku-Band Solid-State Power Amplifier Revision 0 Redundant Configuration MN/KPA.IOM 5.2.3 Gain Equalization of Redundant Units Typical procedures to equalize the gain between the Backup Unit and the Online Unit(s) via the Gain Offset adjustment in the backup unit’s CONFIGURATION Menu are as follows: Note: Make sure all connections are made as outlined previously in Sections 2 and 4.) Determine the relative gain of the Backup Unit vs the Online unit(s).
  • Page 58 Ku-Band Solid-State Power Amplifier Revision 0 Redundant Configuration MN/KPA.IOM For Example: 47.0 dBm Online Unit Output Level Backup Unit Output Level 45.25 dBm Backup Unit Offset Value 0.00 dBm 3.00 dB (must be > 1.75 dB) Online Attenuation Setting AFTER TOGGLING AND ADJUSTING: -1.75 dB Backup Offset Value New Equalized Output Level...
  • Page 59 Ku-Band Solid-State Power Amplifier Revision 0 Redundant Configuration MN/KPA.IOM NOTES:...

  • Page 60: Chapter 6. Remote Control Specification

    Chapter 6. Remote Control Specification General The backup KPA in the redundancy subsystem automatically monitors the configuration and status for each of the primary (chained) KPAs. This information is communicated via the dedicated serial interface between the KPAs. • If a primary KPA fails, the backup detects this event and automatically reconfigures itself to the proper attenuation setting and positions the waveguide switch to provide minimal loss of traffic.

  • Page 61: Electrical Interface

    Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM Electrical Interface The remote control interface supports either RS-485 (2-wire), RS-485 (4-wire ) or RS-232. The default port is RS-485 (2-wire). Selection of the interface type is made via front panel menu selection. The three interface types are impletemented alternately through the same 9-pin connector.

  • Page 62: Cables

    RS-232 The Comtech EF Data KPA does not require the hardware handshaking provided by the DSR, RTS, and CTS signals. These signals are provided for customers that are using interface terminals that require this handshaking. Most of today’s PC’s are provided with RS-232 serial ports that do not require the...

  • Page 63: Protocol

    No Reponse instance, at which time the command should be re-transmitted. Bus Inactivity Comtech EF Data recommends that a minimum of 50 milliseconds bus Requirement inactivity be provided by the user between the receipt of a response from an addressed KPA and issuing the next command on the serial bus.

  • Page 64: Access Methods

    Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM Access Methods The KPA may be accessed directly by using a physical address or indirectly through a backup KPA in a redundant configuration using a virtual address. 6.6.1 Direct Access KPAs may be directly accessed by the RS-232 interface or by the RS-485 interface in a buss configuration.

  • Page 65: Addressess

    Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM Addressess All KPAs are addressed in a command by the Device Address. The Device Address consists of a physical address or a physical address plus a virtual address. 6.7.1 Physical Address Each KPA in the system must have a unique physical address regardless of the access method used.

  • Page 66: Device Address

    Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM 6.7.5 Device Address The Device Address consists of a Physical Address. For this document DEV is used for the generic case examples. For Example; <10 direct addressing <10V2 indirect addressing 6.7.6 Command A Command is a variable length character string beginning with a / and containing either an instruction or an instruction and data for an KPA to act upon.

  • Page 67: End Of Message

    Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM 6.8.2 End Of Message End of message strings were devised in such a way that an orderly screen presentation would result when KPAs are controlled by simple ASCII terminals. 6.8.2.1 Command Ending The end of message for a command is a carriage return.

  • Page 68: Command/Response Pairs

    >DEV/LCD_xx'cr'' lf'] The default is contrast 15. Lamp Test Test Lamps: <DEV/LAM_xxx'cr' Where: xxx = On or Off Confirmation: >DEV/LAM_xxx'cr'' lf'] KPA-020IN Lamp Test Status: <DEV/LAM_'cr' Confirmation: >DEV/LAM_xxx'cr'' lf'] Equipment Type Retrieve Equipment Type: <DEV/RET_'cr' Where: xxxxxxx = Model No.

  • Page 69: Configuration Commands

    Retrieve AMP Status: <DEV/AMP_'cr' Confirmation: >DEV/AMP_xxx'cr'' lf'] The Comtech EF Data KPA provides the user direct control of the 9VDC supply voltage to the solid-state RF power FETs. This feature provides the ability to put the KPA into a low power consumption mode when the unit is offline.

  • Page 70: Mode Commands

    Automatic Mode. Redundancy Mode Comtech EF Data’s KPA family is designed to automatically sense and configure into redundancy mode when the redundant loop cable is connected. Polling on the dedicated redundancy buss will not begin until the redundancy loop cable is connected. Each KPA’s designation in a redundant subsystem is determined automatically via the redundancy interface cable connected between the two (1:1 subsystem) or three (1:2 subsystem) KPAs in the redundant subsystem.

  • Page 71: Status Commands

    Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM 6.9.4 Status Commands Configuration Configuration Status: <DEV/RCS_'cr' Where: Status Confirmation: >DEV/RCS_'cr' ATT_yy.yy'cr' Attenuator AMP_nnn'cr' Amplifier – On/Off TX_nnn'cr' Transmit – On/Off ONL_nnn'cr' Online – On/Off RED_xx_y'cr' See Note. AFR_nnn'cr' Auto Flt Recoverty – On/Off Notes: If Redundancy is Off, xx_y = Off, else if Redundancy is On the xx...
  • Page 72 Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM FET Status FET Status: <DEV/RFS_’cr’ Where: Confirmation: >DEV/RFS_’cr’ KPA-020IN FET1_xxx’cr’ FET1 current in milliamps FET2_xxx’cr’ FET2 current in milliamps FET3_xxx’cr’ FET3 current in amps FET4_xxx’cr’ FET4 current in amps FET5_xxx’cr’ FET5 current in amps FET6_xxx’cr’...
  • Page 73 CON_xx'cr' LCD Contrast (0 to 30) LCD_xx'cr'' lf'] LCD Brightness (0 to 30) Alarm Status Alarm Status: <DEV/RAS_'cr' Where: Confitmation: >DEV/RAS_'cr' KPA-020IN +28_xx'cr' +28 VDC Fault +12_xx'cr' +12 VDC Fault –12_xx'cr' -12 VDC Fault +5_xx'cr' + 5 VDC Fault –5_xx'cr' –...
  • Page 74 Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM Alarm Status Alarm Status: <DEV/RAS_'cr' Where: xx = OK or FT Confitmation: >DEV/RAS_'cr' KPA-080 +28_xx'cr' +28 VDC Fault KPA-100 +12_xx'cr' +12 VDC Fault –12_xx'cr' -12 VDC Fault +5_xx'cr' + 5 VDC Fault –5_xx'cr' –...
  • Page 75 Status Confirmation: >DEV/PACRFS_aabbccddeeffgghhii’cr'' lf'] aa = FET1 current in Hex, formular: FET1 = (aa) mamps KPA-020IN bb = FET2 current in Hex, formular: FET2 = (aa) mamps cc = FET3 current in Hex, scaled 100mV per count dd = FET4 current in Hex, scaled...
  • Page 76 Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM Packed FET Packed FET Status: <DEV/PACRFS_'cr' Where: Status Confirmation: >DEV/PACRFS_aabbccddeeffgghhiijjkk aa = FET1 current in Hex, formular: llmmnn'cr'' lf'] FET1 = (aa * 3) mamps KPA-040 bb = FET2 current in Hex, scaled 100mV per count cc = FET3 current in Hex, scaled 100mV per count...
  • Page 77 Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM Packed FET Packed FET Status: <DEV/PACRFS_'cr' Where: Status Confirmation: >DEV/PACRFS_aabbccddeeffgghhiijjkkllmm aa = FET1 current in Hex, formular: nnooppqqrrssttuuvvwwxxyyzzal'cr'' lf'] FET1 = (aa * 3) mamps KPA-080 bb = FET2 current in Hex, formular: KPA-100 FET2 = (aa * 3) mamps cc = FET3 current in Hex, scaled 100mV...

  • Page 78: Stored Alarms

    Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM Packed Utility Packed Utility Status: <DEV/PACRUS_'cr' Where: Status Confirmation: >DEV/PACRUS_abbcdeeff'cr'' lf'] a = COM1 Mode; 0 =RS-232, 1 = RS-485-2; 2 = RS-485-4 bb = Address in Hex (01 to FF) 0 if Baud Rate = 9600 1 if Baud Rate = 4800 2 if Baud Rate = 2400...

  • Page 79: Error Processing

    Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM 6.9.6 Error Processing The following Error Responses may be generated by any command instead of a confirmation. General Error Message: >DEV?COM CU COMMAND UNRECOGNIZED'cr'' lf'] >DEV?COM IP INVALID PARAMETER'cr'' lf'] >DEV?COM PE PARITY ERROR'cr'' lf'] 6.9.7 Configuration Errors The following Error Responses may be generated by configuration commands.
  • Page 80 Set Baud Rate <DEV/SBR_xxxx'cr' 6.9.1 Set Parity Rate <DEV/SPB_xxxx'cr' 6.9.1 Set LCD Contrast <DEV/CON_xx'cr' 6.9.1 Set LCD Brightness <DEV/LCD_xx'cr' 6.9.1 Lamp Test (KPA-020IN) <DEV/LAM_xxx’cr’ 6.9.1 Retrieve Equipment type <DEV/RET_'cr' 6.9.1 Set Application ID Message <DEV/AID_xxx…xxx'cr' 6.9.1 Set Local/Remote Mode <DEV/LRS_x'cr' 6.9.1...
  • Page 81 Ku-Band Solid-State Power Amplifier Revision 0 Remote Control MN/KPA.IOM Table 6-4. Commands Supported by Virtual Addressing Mode Commands Display Reference Utility Commands Retrieve Equipment Type <DEV/RET_'cr' 6.9.1 Configuration Commands Set Amplifier On/Off <DEV/AMP_xxx'cr' 6.9.2 Mute/Unmute <DEV/MUT_xxx'cr' 6.9.2 Set Attenuation <DEV/ATT_xx.xx'cr' 6.9.2 Select Auto Fault Recovery <DEV/AFR_xxx'cr'...

  • Page 82: Chapter 7. Maintenance And Troubleshooting

    Chapter 7. Maintenance and Troubleshooting General Refer to the block diagram in Section 1 for interconnecting cables and general troubleshooting help.

  • Page 83: Maintenance Testing

    Ku-Band Solid-State Power Amplifier Revision 0 Maintenance and Troubleshooting MN/KPA.IOM Maintenance Testing For KPA080: The is a Ku-Band with an RF output level of +48.5 dBm at 1 dB compression. For KPA100: The is a Ku-Band with an RF output level of +49.5 dBm at 1 dB compression.

  • Page 84: Table 7-1. Troubleshooting

    Ku-Band Solid-State Power Amplifier Revision 0 Maintenance and Troubleshooting MN/KPA.IOM Table 7-1. Troubleshooting Symptom Possible Cause Solution Unit does not turn On 1. Check power cord 1. Ensure power cord is connected. (No display, No front connections. 2. With input power cord disconnected, check panel lights, No fans) 2.
  • Page 85 Ku-Band Solid-State Power Amplifier Revision 0 Maintenance and Troubleshooting MN/KPA.IOM Table 7-1. Troubleshooting (Continued) Symptom Possible Cause Solution No RF output or ≤ output 1. Mute fuction activated. 1. Check the configuration menu to determine if 2. Amplification = Off mute functions has been activated.
  • Page 86 Ku-Band Solid-State Power Amplifier Revision 0 Maintenance and Troubleshooting MN/KPA.IOM Table 7-1. Troubleshooting (Continued) Symptom Possible Cause Solution Amplifier Temperature Note: KPA module contains as internal temperature monitor that wilkl shut off Fault the unit (i.e. turn off the 9V supplies) if the Heatsink temperature becomes excessive.
  • Page 87 Ku-Band Solid-State Power Amplifier Revision 0 Maintenance and Troubleshooting MN/KPA.IOM NOTES:...

  • Page 88: Appendix A. Specifications

    Ku-Band Solid-State Power Amplifier Revision 0 Specifications MN/KPA.IOM Appendix A. Specifications General The following tables are individual specifications for: • KPA-020IN • KPA-040 • KPA-080 • KPA-100...
  • Page 89 Ku-Band Solid-State Power Amplifier Revision 0 Specifications MN/KPA.IOM Table A-1. KPS-020IN Specifications Parameters Specifications Input Level -10dBm Typical Impedance 50Ω Noise Figure 10 dB Typical, 15 dB max at max gain VSWR 1.25: 1 maximum Connector SMA Female Output Frequency 14.0 to 14.5 GHz Power 42.5 dBm minimum at 1 dB Compression...
  • Page 90 Ku-Band Solid-State Power Amplifier Revision 0 Specifications MN/KPA.IOM Table A-1. KPS-020IN Specifications (Continued) Parameters Specifications Front Panel Display 24 x 2 LCD Data Entry Cursor Control Keypad Output Sample Type N, 50Ω, –40 dBc Input Sample Type N, 50Ω, –20 dBc Remote Control COM Port EIA-232 or EIA-485...
  • Page 91 Ku-Band Solid-State Power Amplifier Revision 0 Specifications MN/KPA.IOM Table A-2. KPA-040 Specification Parameter Specifications Output: Frequency 14.0 to 14.5 GHz Power 45.5 dBm min at 1 dB Compression Mute -60 dB 50 Ω Impedance VSWR 1.25:1 Maximum Connector WR75G Waveguide Gain: Linear 60.0 dB minimum, 63 dB typical...
  • Page 92 Ku-Band Solid-State Power Amplifier Revision 0 Specifications MN/KPA.IOM Table A-2. KPA-040 Specification (Continued) Parameters Specification Alarms: Summary Fault Form C LED: Power On Green Fault Stored Fault TX ON Yellow Online Yellow Remote Yellow Mechanical: Height 7 inches (18 cm) Width 19 inches (48 cm) Depth...
  • Page 93 Ku-Band Solid-State Power Amplifier Revision 0 Specifications MN/KPA.IOM Table A-3. KPA-080 Specification Parameters Specifications Parameters Specifications Input Front Panel Impedance Display 20 x 2 LCD 50Ω Noise Figure 10dB Typical, 15 dB max at max gain Data Entry Cursor Control Keypad VSWR 1.25: 1 maximum Output Sample...
  • Page 94 Ku-Band Solid-State Power Amplifier Revision 0 Specifications MN/KPA.IOM Table A-4. KPA-100 Specification Parameters Specifications Parameters Specifications Input Front Panel Impedance Display 20 x 2 LCD 50Ω Noise Figure 10dB Typical, 15 dB max at max gain Data Entry Cursor Control Keypad VSWR 1.25: 1 maximum Output Sample...
  • Page 95 Ku-Band Solid-State Power Amplifier Revision 0 Specifications MN/KPA.IOM Notes: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________...
  • Page 96 Gain Eequalization of Redundant Units, 5-4 Access Methods, 6-5 General, 4-1, 5-1, 6-1, 7-1 Addresses, 6-6 Indirect Access, 6-5 Block Diagram of KPA-020IN, 1-2 Installation, 2-1, 2-2 Block Diagram of KPA-040, 1-3 Interface Connector, 6-2 Block Diagram of KPA-080/100, 1-4...
  • Page 97 Ku-Band Solid-State Power Amplifier Revision 0 Index MN/KPA.IOM Response Ending, 6-8 RS-232/RS-485 Onterface, Connector J6, 3-4 Unpacking, 2-1 Utility Commands, 6-9 Virtural Address, 6-6 Select: Configuration Menu, 4-8 Select: Monitor Status Menu, 4-10 Select: Stored Faults Menu, 4-15 Select: Utility Functions Menu, 4-16 Waveguide Switch Interface, Connector J7, 3-4 Specifications, A-1 Start Character, 6-6...
  • Page 98 METRIC CONVERSIONS Units of Length Unit Centimeter Inch Foot Yard Mile Meter Kilometer Millimeter 1 centimeter — 0.3937 0.03281 0.01094 6.214 x 10 0.01 — — 1 inch 2.540 — 0.08333 0.2778 1.578 x 10 0.254 — 25.4 1 foot 30.480 12.0 —...
  • Page 99 2114 85281 WEST TH STREET TEMPE ARIZONA 480 • 333 • 2200 PHONE 480 • 333 • 2161...

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