1. Manuals
  2. Brands
  3. Comtech EF Data Manuals
  4. Network Hardware
  5. PCB-4000
  6. Installation and operation manual

Comtech EF Data PCB-4000 Installation And Operation Manual

Phase combiner
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
PCB-4000
Phase Combiner
Installation and Operation Manual
IMPORTANT NOTE: The information contained in this document supersedes all previously published
information regarding this product. Product specifications are subject to change without prior notice.
P/N MN/PCB4000.IOM Revision 0

Advertisement

Table of Contents
loading

Related Manuals for Comtech EF Data PCB-4000

Summary of Contents for Comtech EF Data PCB-4000

  • Page 1 PCB-4000 Phase Combiner Installation and Operation Manual IMPORTANT NOTE: The information contained in this document supersedes all previously published information regarding this product. Product specifications are subject to change without prior notice. P/N MN/PCB4000.IOM Revision 0...
  • Page 3 PCB-4000 Phase Combiner Installation and Operation Manual P/N MN/PCB4000.IOM Comtech EF Data is an ISO 9001 Revision 0 Registered Company. August 25, 2005...
  • Page 4 3. To ensure that the product is not damaged during shipping, pack the product in its original shipping carton/packaging. 4. Ship the product back to Comtech EF Data. (Shipping charges should be prepaid.) For more information regarding the warranty policies, see Warranty Policy, p. vi.

  • Page 5: Table Of Contents

    Table of Contents CHAPTER 1. INTRODUCTION ..................1–1 1.1 Introduction......................... 1–1 1.2 Description........................... 1–2 1.3 Dimensional Envelope ......................1–5 CHAPTER 2. CONNECTOR PINOUTS................2-1 2.1 External Connectors ..................... 2-1 2.1.1 System Comm Connector, J1..................2-2 2.1.2 SSPA Comm 1 or 2 Connector, J2, J3, or J4 (J4 only for 1:2 systems) ......2-3 2.1.3 SSPA SW Out, J5 ......................2-4 2.1.4 RF Input Switch, J6......................2-5 2.1.5 RF IN 1, J7 ........................2-5...
  • Page 6 PCB-4000 Phase Combiner Revision 0 Preface MN/PCB4000.IOM 4.2 LED Operation........................4-2 4.2 Initial System Setup and Verification ................4-3 4.3 Gain or Amplitude Balance Verification and Alignment..........4-4 4.4 Amplitude Alignment (as necessary).................. 4-5 4.5 Phase Alignment ........................4-6 4.6 System Online and Transmitting ..................4-6 CHAPTER 5.
  • Page 7 Revision 0 Preface MN/PCB4000.IOM Figures FIGURE 1-1. PCB-4000, PHASE COMBINER CONTROL BOX (PCCB) ......1–1 FIGURE 1-2. BLOCK DIAGRAM ................... 1–3 FIGURE 1-3. DIMENSIONAL ENVELOPE ................1–5 FIGURE 2-1. EXTERNAL CONNECTORS ................2-1 FIGURE 3-1. COMBINING LOSS VS. PHASE IMBALANCE ..........3-1 FIGURE 4-1.
  • Page 8 ANUAL This manual provides installation and operation information for the Comtech EF Data PCB-4000, Phase Combiner. This is a technical document intended for earth station engineers, technicians, and operators responsible for the operation and maintenance of the Phase Combiner. ONVENTIONS AND...
  • Page 9 ANUAL Comments and suggestions regarding the content and design of this manual will be appreciated. To submit comments, please contact: Comtech EF Data Technical Publications Department: techpub@comtechefdata.com AFETY OTICE This equipment has been designed to minimize exposure of personnel to hazards.
  • Page 10 This Comtech EF Data product is warranted against defects in material and workmanship for a period of 24 months 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 11 ISCLAIMER Comtech EF Data has reviewed this manual thoroughly in order to provide an easy-to-use guide to your equipment. All statements, technical information, and recommendations in this manual and in any guides or related documents are believed reliable, but the accuracy and completeness thereof are not guaranteed or warranted, and they are not intended to be, nor should they be understood to be, representations or warranties concerning the products described.
  • Page 12 PCB-4000 Phase Combiner Revision 0 Preface MN/PCB4000.IOM This page intentionally left blank. viii...

  • Page 13: Chapter 1. Introduction

    The PCB 4000 (1+1) also features a “soft fail” configuration, such that if one SSPA experiences a failure, the total output power will only be reduced by 3dB, rather than 6dB. Figure 1-1. PCB-4000, Phase Combiner Control Box (PCCB) 1–1...

  • Page 14: Description

    PCB-4000 Phase Combiner Revision 0 Introduction MN/PCB4000.IOM 1.2 D ESCRIPTION Figure 1-2 is a block diagram that shows the major components of the phase combined system. The Phase Combiner Control Box (PCCB) contains a microprocessor based M&C circuit board to control the system. The PCCB communicates with each SSPA via control cables that are attached from the PCCB (J2, J3) to each SSPA.

  • Page 15: Figure 1-2. Block Diagram

    PCB-4000 Phase Combiner Revision 0 Introduction MN/PCB4000.IOM Figure 1-2. Block Diagram 1–3...
  • Page 16 PCB-4000 Phase Combiner Revision 0 Introduction MN/PCB4000.IOM This page intentionally left blank. 1–4...

  • Page 17: Dimensional Envelope

    PCB-4000 Phase Combiner Revision 0 Introduction MN/PCB4000.IOM 1.3 D IMENSIONAL NVELOPE Note: All dimensions are in English units; metric units are in the parentheses. R.13 4X KEY HOLE 4X KEY HOLE R.25 7.30 STATUS 12.70 Figure 1-3. Dimensional Envelope 1–5...
  • Page 18 PCB-4000 Phase Combiner Revision 0 Introduction MN/PCB4000.IOM This page intentionally left blank. 1–6...

  • Page 19: Chapter 2. Connector Pinouts

    Chapter 2. CONNECTOR PINOUTS 2.1 E XTERNAL ONNECTORS SSPA SYSTEM SSPA COM 1 RF IN 1 SW OUT SSPA SSPA OUT 2 OUT 1 RF INPUT SSPA RF IN 2 SWITCH COM2 Figure 2-1. External Connectors Table 2-1. External Connectors Name Ref Des Mating Connector Type...

  • Page 20: System Comm Connector, J1

    RS232_TD Customer communications interface System Fault NO When there is a summary fault in the PCB-4000, this pin (NO) will be tied to the Fault Common pin. System Fault NC When there is not a summary fault in the PCB-4000, this pin (NC) will be tied to the Fault Common pin.
  • Page 21 PCB-4000 Phase Combiner Revision 0 Connector Pinouts MN/PCB4000.IOM 2.1.2 SSPA C , J2, J3, J4 (J4 ONNECTOR ONLY FOR SYSTEMS Table 2-3. SSPA Comm 1, 2, 3 Connector Pin Assignments, J2, J3, J4 Signal Function Function Direction RS232_RD Provides for Comm between PCB and SSPA...

  • Page 22: Sspa Sw Out, J5

    PCB-4000 Phase Combiner Revision 0 Connector Pinouts MN/PCB4000.IOM 2.1.3 SSPA SW O , J5 Table 2-4. SSPA SW Out, J5 Pin # Signal Function Signal Name Direction Pos1, SW1 Drive Output Ground POS2, SW1, Drive Output POS1, SW1, Indicator Input...

  • Page 23: Rf Input Switch, J6

    2.1.4 RF I , J6 NPUT WITCH The PCB-4000 contains a built in input selector switch. The position of this switch is selected by J6. The switch is a latching, 28VDC, coaxial unit. Table 2-5. RF Input Switch, J6 Pin #...

  • Page 24: Notes

    PCB-4000 Phase Combiner Revision 0 Connector Pinouts MN/PCB4000.IOM 2.1.9 N OTES ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________...

  • Page 25: Chapter 3. Theory Of Operation

    Chapter 3. Theory of Operation 3.1 I NTRODUCTION As mentioned in chapter 1, phase combining is a common technique to increase the available output power of an amplifier system. Referring to the system block diagram of Figure 1-2, when two signals of equal phase and amplitude are fed into the “Magic-Tee” combiner, the individual power of each SSPA is summed at the output port and cancelled in the termination port.

  • Page 26: Phase And Gain Equalization

    3.4 S ROTECTION In the event of a failure of one of the SSPAs, the PCB-4000 controls the waveguide switches such that the good unit’s power is routed around the magic tee combiner directly to the output port. This results in only a 3 dB power loss, or “soft failure”. Without the...

  • Page 27: Chapter 4. Alignment Procedures

    Chapter 4. Alignment Procedures 4.1 I NTRODUCTION (Note: The user is encouraged to read or review the previous chapters to become familiar with system terminology and theory before attempting any of the procedures mentioned below.) As discussed earlier, the system is aligned at the factory using a network analyzer. This technique facilitates easy adjustment and setting of the phase shifter for optimum output power combining over the full amplifier bandwidth.

  • Page 28: Figure 4-1. System Setup And Verification

    PCB-4000 Phase Combiner Revision 0 Operation MN/PCB4000.IOM Wasted Power Phase LED Status Combined Output Test Coupler Adjuster Panel Test Coupler Figure 4-1. System Setup and Verification...

  • Page 29: Led Operation

    Revision 0 Operation MN/PCB4000.IOM LED O PERATION For quick system status information, the PCB-4000 provides a set of LED indicators. These can be viewed by loosening the captive fastener on the “status” plate and pushing it aside. • SUM: Red and blinking means a switch fault has occurred.

  • Page 30: Initial System Setup And Verification

    PCB-4000 Phase Combiner Revision 0 Operation MN/PCB4000.IOM 4.3 I NITIAL YSTEM ETUP AND ERIFICATION In this case, it is assumed that the system has been installed and that the output port is terminated in a broad-band high power load. (Refer to Figure 1-2. If the system is in operation, and only verification is desired, refer to Section 4.5 below).

  • Page 31: Gain Or Amplitude Balance Verification And Alignment

    PCB-4000 Phase Combiner Revision 0 Operation MN/PCB4000.IOM 4.4 G AIN OR MPLITUDE ALANCE ERIFICATION AND LIGNMENT (Note: This step is generally not necessary if all performance was satisfactory in the steps above.) Due to the configuration of the waveguide switches in a 1+1 system, it is possible to measure the individual gain of each SSPA path.

  • Page 32: Phase Alignment

    PCB-4000 Phase Combiner Revision 0 Operation MN/PCB4000.IOM Again, insure the input signal is at center frequency and that the output power level is approximately Prated – 10 dB. Alternately toggle between BYP=1 and BYP=2 to measure the gains of each SSPA path. Note which path has the greater amount of gain.
  • Page 33 PCB-4000 Phase Combiner Revision 0 Operation MN/PCB4000.IOM Attach a power meter to the Combined Output Power Test Coupler. Apply a low level signal at center frequency, making sure the output signal (at the system output port –not the coupled port) will be at least 10 dB below Prated.

  • Page 34: System Online And Transmitting

    PCB-4000 Phase Combiner Revision 0 Operation MN/PCB4000.IOM 4.7 S YSTEM NLINE AND RANSMITTING In this case, it is assumed that the system has been installed and that access to the system output port (refer to Figure 1-2) is unavailable due to current system traffic.

  • Page 35: Chapter 5. Remote Commands

    PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Chapter 5. Remote Commands NTRODUCTION This section describes the protocol and message command set for remote monitor and control of the SSPA product. The electrical interface is either an RS-485 multi-drop bus (for the control of many devices) or an RS-232 connection (for the control of a single device), and data is transmitted in asynchronous serial form, using ASCII characters.

  • Page 36: Rs-232

    PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Each target has a unique address, and each time the controller transmits, in a framed ‘packet’ of data, the address of the intended recipient target is included. All of the targets receive the packet, but only one (the intended) will reply.

  • Page 37: Packet Structure

    PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM ACKET TRUCTURE Controller-to-target: Start of Packet Target Address Instruction Code Optional End of Packet Address De-limiter Code Qualifier Arguments < = or ? Carriage ASCII code 60 ASCII code 47 ASCII code...

  • Page 38: Virtual Address

    PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM 5.5.3 IRTUAL DDRESS Virtual address is a method that allows the user to access the SSPA via the phase combiner box using any communications software. Virtual address is being supported in both RS-232 and RS-485 applications.

  • Page 39: Instruction Code Qualifier

    PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM 5.5.5 NSTRUCTION UALIFIER This is a single character that further qualifies the preceding instruction code. Code Qualifiers obey the following rules: 1. From Controller to Target, the only permitted values are:...

  • Page 40: Message Arguments

    PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM The ‘?’ code (target to controller) is only used as follows: If the controller sends an instruction to set a parameter to a particular value, then, if the value sent in the argument is not valid, the target will acknowledge the message by replying (for example) with MUT? (with no message arguments).

  • Page 41: Remote Commands

    PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM 5.5.8 R EMOTE OMMANDS AMP, 5-9 DAT, 5-11 MUT, 5-10 TIM, 5 -1 ATT, 5-9 TNA, 5-12 AUX, 5-9 BYP, 5-10 FRW, 5 -13 RAS,5-14 RCS, 5-16 RED, 5-10 RET, 5-12...
  • Page 42 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM This page intentionally left blank.
  • Page 43 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Command Command Arguments Description of arguments Query Response Response to Parameter (Instruction Valid for for Command (note that all arguments are ASCII (Instruction Query Valid to query Command Type Code and...
  • Page 44 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Command Command Arguments Description of arguments Query Response Response to Parameter (Instruction Valid for for Command (note that all arguments are ASCII (Instruction Query Valid to query Command Type Code and...
  • Page 45 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Command Command Arguments Description of arguments Query Response Response to Parameter (Instruction Valid for for Command (note that all arguments are ASCII (Instruction Query Valid to query Command Type Code and...
  • Page 46 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Command Command Arguments Description of arguments Query Response Response to Parameter (Instruction Valid for for Command (note that all arguments are ASCII (Instruction Query Valid to query Command Type Code and...
  • Page 47 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Command Command Arguments Description of arguments Query Response Response to Parameter (Instruction Valid for for Command (note that all arguments are ASCII (Instruction Query Valid to query Command Type Code and...
  • Page 48 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Command Command Arguments Description of arguments Query Response Response to Parameter (Instruction Valid for for Command (note that all arguments are ASCII (Instruction Query Valid to query Command Type Code and...
  • Page 49 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Command Command Arguments Description of arguments Query Response Response to Parameter (Instruction Valid for for Command (note that all arguments are ASCII (Instruction Query Valid to query Command Type Code and...
  • Page 50 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Command Command Arguments Description of arguments Query Response Response to Parameter (Instruction Valid for for Command (note that all arguments are ASCII (Instruction Query Valid to query Command Type Code and...
  • Page 51 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM Command Command Arguments Description of arguments Query Response Response to Parameter (Instruction Valid for for Command (note that all arguments are ASCII (Instruction Query Valid to query Command Type Code and...
  • Page 52 PCB-4000 Phase Combiner Revision 0 Remote Control Commands MN/PCB4000.IOM This page has been intentionally left blank. 5-18...

  • Page 53: Appendix A. Assembly Kit

    PCB-4000 Phase Combiner Revision 0 Assembly Kits MN/PCB4000.IOM Appendix A. Assembly Kit The following figures represent the installtion requirements for a 1:1 phase combined configuration.
  • Page 54 PCB-4000 Phase Combiner Revision 0 Assembly Kits MN/PCB4000.IOM Notes: ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________...

  • Page 55: Figure A-1. Combined 1:1 Odpa X-Band Assembly Kit, P/N Kt/11344

    PCB-4000 Phase Combiner Revision 0 Assembly Kits MN/PCB4000.IOM Figure A-1. Combined 1:1 ODPA X-Band Assembly Kit, P/N KT/11344...
  • Page 56 PCB-4000 Phase Combiner Revision 0 Assembly Kits MN/PCB4000.IOM This page is intentionally left blank.

  • Page 57: Table A-1. Parts List

    PCB-4000 Phase Combiner Revision 0 Assembly Kits MN/PCB4000.IOM A.1 P 1:1 ODPA X-B ARTS IST FOR OMBINED SSEMBLY P/N KT/11344(-1) Table A-1. Parts List Item No. Part No. Nomenclature Not Used Not Used FP/WG11306-1 Waveguide, 90 Degrees Bend with Coupler...
  • Page 58 PCB-4000 Phase Combiner Revision 0 Assembly Kits MN/PCB4000.IOM 16 thru 19 Not Used HW/8-32HEXNUT Nut, Hex HW/8-FLT Washer, Flat HW/8-SPLIT Washer, Lock HW/8-32X1/2SHCS Screw, Socket Head Cap HW/8-32X7/8SHCS Screw, Socket Head Cap HW/SEM6 32X3/8PH Screw, Phil Pan Head 26 thru 30...
  • Page 59 PCB-4000 Phase Combiner Revision 0 Assembly Kits MN/PCB4000.IOM Figure A-2. Redundant 1:1 ODPA X -Band Assembly Kit, P/N KT/11387...
  • Page 60 PCB-4000 Phase Combiner Revision 0 Assembly Kits MN/PCB4000.IOM This page is intentionally left blank.
  • Page 61 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 62 2114 85281 WEST TH STREET TEMPE ARIZONA 480 • 333 • 2200 PHONE 480 • 333 • 2161...

Table of Contents