Advantech AWMA - C250 User manual

INSTALLATION AND OPERATING MANUAL
REDUNDANT 250W C-BAND HUB-MOUNT
SOLID STATE POWER AMPLIFIER
AWMA – C250
PM 100-415550-220, REV. 3

AWMA-C250
Page 1
WARRANTY
This ADVANTECH Advanced Microwave Technologies, Inc. product is warranted against
defects in material and workmanship for a period of 2 years from date of shipment. During the
warranty period, ADVANTECH Advanced Microwave Technologies, Inc. will, at its option,
either repair or replace products that will prove to be defective.
To return a product for warranty or repair service, you must first request a Return Material
Authorization (RMA) number by contacting ADVANTECH at:
Phone: [phone] or Fax: [phone]
Website:
www.AdvantechAMT.com or e-mail: [email protected]
The unit should be shipped to the following address, in original shipping container (box), with
shipping charges prepaid.
ADVANTECH Advanced Microwave Technologies, Inc.
657 Orly Avenue
Dorval, Quebec
H9P 1G1
CANADA
Please indicate the RMA number on all shipping documentation.
Units shipped without prior issued RMA, or shipped not in original packing, may be subject of
rejection and returned at sender’s own expense.
LIMITATIONS OF WARRANTY
ADVANTECH Advanced Microwave Technologies, Inc. warrants this product to be free of
materials and workmanship defects.
The foregoing warranty shall not apply to defects resulting from improper handling or abuse by
the Buyer, unauthorized modification, operation outside of the environmental specifications for
the product, or improper installation or maintenance.
ADVANTECH Advanced Microwave Technologies, Inc. shall not be liable for any direct,
indirect, special, incidental or consequential damages.

AWMA-C250
Page 2
CONTENTS
1. SAFETY ...............................................................................................................................................................6
2. GENERAL INFORMATION.............................................................................................................................9
3. MAJOR SUBSYSTEMS AND THEIR FUNCTIONS ...................................................................................13
3.1 RF SUB-SYSTEM...........................................................................................................................................13
3.1.1 RF High Power Module...............................................................................................................13
3.1.2 RF Driver Module..........................................................................................................................13
3.1.3 Waveguide Arm Assembly ...........................................................................................................14
3.1.4 RF Input Isolation Circuit...........................................................................................................14
3.2 THE REDUNDANT WAVEGUIDE SWITCH ASSEMBLY .....................................................................................14
3.3 THE REDUNDANT FRAME ASSEMBLY ...........................................................................................................14
3.4 POWER SUPPLY SUBSYSTEM.........................................................................................................................17
3.5 MONITOR AND CONTROL BOARD ................................................................................................................17
3.6 THE COOLING SUBSYSTEM...........................................................................................................................18
3.7 LRU PHILOSOPHY........................................................................................................................................18
4. UNPACKING AND INSTALLATION............................................................................................................19
4.1 INITIAL INSPECTION......................................................................................................................................19
4.2 UNPACKING..................................................................................................................................................19
4.3 INSTALLATION..............................................................................................................................................19
4.3.1 Mechanical Installation................................................................................................................19
4.3.2 Electrical Connections.................................................................................................................21
4.3.3 RF Connections..............................................................................................................................23
4.3.4 Cooling Considerations ...............................................................................................................23
5. INTERFACES ...................................................................................................................................................25
5.1 SERIAL INTERFACE (1:1 REDUNDANT SYSTEM) ...........................................................................................26
5.2 DISCRETE INTERFACE...................................................................................................................................27
5.3 RF OUTPUT MONITOR PORT ........................................................................................................................29
6. INITIAL POWER ON AND CHECKOUT.....................................................................................................30
6.1 PRE-POWER PROCEDURES ............................................................................................................................30
6.1.1 Verifying the Operational Settings............................................................................................30
7. OPERATION.....................................................................................................................................................31
7.1 INTRODUCTION.............................................................................................................................................31
7.2 ESSENTIAL OPERATING PROCEDURES ..........................................................................................................31
7.3 PREPARING THE SERIAL INTERFACE .............................................................................................................32
7.3.1 Software Installation and Set-up...............................................................................................32
7.3.2 Wiring Instructions........................................................................................................................32
7.3.3 Software Configuration...............................................................................................................33
7.4 RF CONFIGURATION.....................................................................................................................................34

AWMA-C250
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7.4.1 Safety Considerations...................................................................................................................34
7.4.2 Setting RF Output ..........................................................................................................................34
7.5 SETTING MINIMUM OUTPUT POWER THRESHOLD ........................................................................................34
7.6 AMPLIFIER SHUTDOWN ................................................................................................................................35
7.7 ALARMS AND FAULTS ..................................................................................................................................35
7.8 RESETTING THE UNIT...................................................................................................................................35
7.8.1 Clearing Faults...............................................................................................................................36
7.9 USING THE SOFTWARE INTERFACE...............................................................................................................36
INITIAL MENU (SCREEN) PAGE...........................................................................................................37
MENU (SCREEN) PAGE #1 ......................................................................................................................38
MENU (SCREEN) PAGE #2 ......................................................................................................................40
MENU (SCREEN) PAGE #3 ......................................................................................................................41
8. MAINTENANCE...............................................................................................................................................42
8.1 PREVENTIVE MAINTENANCE ........................................................................................................................42
8.1.1 Mechanical Preventive Maintenance.......................................................................................42
8.1.2 Checking the Cooling fan............................................................................................................42
8.2 MODULE REPLACEMENT PROCEDURES ........................................................................................................43
8.2.1 Shroud Disassembly......................................................................................................................43
8.2.2 Fan Replacement............................................................................................................................43
8.2.3 Waveguide Arm Replacement.....................................................................................................43
8.2.4 Power Supply Replacement (A1, A2) .......................................................................................43
8.2.5 RF Driver Module Replacement (A4)......................................................................................43
8.2.6 RF Power Module Replacement (A3).......................................................................................44
8.2.7 Monitor and Control Board Replacement (A5).....................................................................44
9. APPENDIX – A: ELECTRICAL SPECIFICATIONS ..................................................................................45
10. APPENDIX – B: PACKING LIST...............................................................................................................46
11. APPENDIX – C: MODULE REPLACEMENT..........................................................................................47
12. APPENDIX - D: SAFETY AND EMC COMPLIANCE............................................................................48

AWMA-C250
Page 4
FIGURES
FIGURE 1: PRODUCT OUTLINE ...................................................................................................... 10
FIGURE 2: PRODUCT OUTLINE (EACH UNIT).................................................................................. 11
FIGURE 3: BLOCK DIAGRAM (ONE UNIT)....................................................................................... 12
FIGURE 4: CONNECTORS SIDE OF ONE UNIT................................................................................... 15
FIGURE 5: BLOCK DIAGRAM 1:1 REDUNDANT SYSTEM................................................................ 16
FIGURE 6: MAIN FRAME ASSEMBLY ............................................................................................. 20
FIGURE 7: DISCRETE INTERFACE – PROPOSED MONITOR AND CONTROL CIRCUIT........................ 29
FIGURE 8: INITIAL PAGE OF THE COMMUNICATION PROGRAM...................................................... 37
FIGURE 9: PAGE #1 OF THE COMMUNICATION PROGRAM ............................................................. 38
FIGURE 10: PAGE #2 OF THE COMMUNICATION PROGRAM ........................................................... 40
FIGURE 11: PAGE #3 OF THE COMMUNICATION PROGRAM ........................................................... 41

AWMA-C250
Page 5
TABLES
TABLE 1: CONNECTORS (EACH UNIT)..................................................................................... 15
TABLE 2: AC LINE (J5) – PIN ASSIGNMENTS (EACH UNIT)................................................. 17
TABLE 3: MECHANICAL SPECIFICATIONS ........................................................................ 21
TABLE 4: POWER (EACH UNIT)................................................................................................. 22
TABLE 5: ENVIRONMENTAL CONDITIONS........................................................................ 24
TABLE 6: RS-485 INTERFACE................................................................................................. 24
TABLE 7: SERIAL INTERFACE (J2) – PIN ASSIGNMENTS (EACH UNIT)............................ 26
TABLE 8: DISCRETE INTERFACE (J3) – PIN ASSIGNMENTS (EACH UNIT) ...................... 28
TABLE 9: SERIAL INTERFACE (P1) CONNECTION INFORMATION............................... 33
TABLE 10: ELECTRICAL SPECIFICATIONS......................................................................... 45

AWMA-C250
Page 6
1. SAFETY
In addition to this section, included by reference are the following pertinent sections of the
International Standard IEC-215, ‘Safety requirements for radio transmitting equipment’:
Appendix D, ‘GUIDANCE ON ASSESSING THE COMPETENCE OF PERSONNEL FOR
DESIGNATION AS SKILLED’ and also Sub-clause 3.1 of the Standard.
Appendix E, ‘GUIDANCE ON SAFETY PRECAUTIONS TO BE OBSERVED BY
PERSONNEL WORKING ON RADIO TRANSMITTING EQUIPMENT’, also Sub-clauses 3.2,
3.7 and 22.1 of the Standard.
To prevent the risk of personal injury or loss related to equipment malfunction Advantech uses
the following symbols for safety related information. For your own safety, please read the
information carefully BEFORE operating the equipment.
Symbols used in manual:
WARNING: This indicates a hazardous procedure that could result in serious injury or death if
not performed properly.
CAUTION: This indicates a hazardous and danger procedure that could result in light-
to-severe injury or loss related to equipment malfunction, if proper precautions
are not taken.

AWMA-C250
Page 7
----------------------------------------------- WARNING -----------------------------------------------------
When supplying power to this equipment, use the 3-pin connector provided to connect to a
grounded power outlet; also use a ground strap between the station’s ground bus and the
ground screw located on the SSPA frame and redundancy frame. If power is supplied without
grounding to the equipment, there is a risk of receiving a severe or fatal electric shock.
In the context of this document any voltage that is lethal is viewed as ‘High Voltage’. Therefore,
even prime power (180 to 268 VAC) is dangerous because prime power potentials have been
known to cause death or injury.
----------------------------------------------- WARNING ----------------------------------------------------
This equipment can not be repaired by the operator. DO NOT attempt to remove the
equipment cover or to disassemble internal components. Only qualified service technicians
should service this equipment. There are high-voltage parts in this equipment presenting a risk of
severe injury to untrained personnel. In addition, there is a risk of damage to precision
components.
----------------------------------------------- WARNING ----------------------------------------------------
ALWAYS TERMINATE THE OUTPUT WAVEGUIDE OF THE AMPLIFIER WITH AN
RF LOAD CAPABLE OF DISSIPATING FULL CW RF POWER. SIMILARLY
TERMINATE THE INPUT TO AVOID THE POSSIBILITY OF THE AMPLIFIER
BEING DRIVEN BY STRAY LEAKAGE SIGNALS. Incorporate the termination prior to
applying prime power to the amplifier. This procedure prevents self-oscillation and irradiation of
the local environment. Even if a source is not connected to the amplifier you are working with,
there are situations where the amplifier can go into a self-induced mode and generate high levels
of RF energy. Destruction caused under excessive load voltage standing wave ratio (VSWR) will
void the warranty. Although the equipment has internal protection for VSWR higher than 3:1
and will automatically go in shutdown (with a delay of 1 second), still it is a safe procedure to
avoid unwanted effects.

AWMA-C250
Page 8
----------------------------------------------- WARNING ----------------------------------------------------
DO NOT LOOK INTO THE OUTPUT PORT OF THE POWERED RF AMPLIFIER.
Treat the powered amplifier with extreme care. Keep in mind that levels of microwave radiation
that do not induce immediate physical discomfort in most individuals can be sufficiently high to
induce longer term effects. Your eyes are particularly vulnerable parts of your body.
The permissible levels of exposure are quite low in comparison to the power levels of the
amplifiers built by Advantech (e.g. less than 10 mW versus 20 to 1000 W delivered by different
units). The permissible levels are currently being studied by a number of organizations. In the
past the U.S. safety Code established a dosage rate of 10 mW/cm2. Currently there is
consideration being given to reducing the permissible level to 1 mW/cm2in the United States, as
has been the case for several European countries.
----------------------------------------------- CAUTION -----------------------------------------------------
TWO OR MORE PEOPLE SHOULD BE LIFTING AND MOVING this equipment or use
an equipment cart. There is a risk of back injury, if carried by a single person.

AWMA-C250
Page 9
2. GENERALINFORMATION
This manual contains information that describes installation, operation, and maintenance
procedures for the REDUNDANT 1:1 SYSTEM 250 W C-Band hub-mount (outdoor) Solid
State Power Amplifier (SSPA) model AWMA-C250. Because specialized training is required for
some phases of installation and operation, certain parts of this manual are directed only to trained
personnel. Warnings appear at the appropriate points to caution all users against potential RF and
high-voltage hazards.
For a safe and versatile operation, please read this information carefully BEFORE using the
equipment.
Advantech Advanced Microwave Technologies, Inc. has prepared this manual for use by
Advantech personnel and customers as a guide for the proper installation, operation and
maintenance of Advantech equipment and computer programs. The drawings, specifications and
information contained herein are property of Advantech Advanced Microwave Technologies,
Inc. Any unauthorized use or disclosure of these drawings, specifications and information is
prohibited; they shall not be reproduced, copied or used in whole or in part as the basis for
manufacturing or sale of the equipment or software programs without the prior written consent
of Advantech Advanced Microwave Technologies, Inc.