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INSTALLATION AND OPERATING MANUAL REDUNDANT 250 W C-BAND RACK-MOUNT SOLID STATE POWER AMPLIFIER ARMA - C250 – CRM PM 101-615652-140 REV. 4...
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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.
ARMA-C250-CRM CONTENTS SAFETY ................................6 GENERAL INFORMATION........................... 9 INTRODUCTION ............................9 DESCRIPTION .............................. 9 2.2.1 Power Supply ............................9 2.2.2 HPA Assembly............................9 2.2.3 Monitor and Control Assembly ......................9 PACKING LIST FOR ONE UNIT....................... 10 RMR-C400A REDUNDANCY KIT (P/N 190-310604-020)............... 11 SPECIFICATIONS............................
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ARMA-C250-CRM ALARMS AND FAULTS ..........................42 THERMAL ALARMS AND FAULTS......................42 RESETTING THE SSPA ..........................42 6.2.1 Using the Serial Interface ........................42 6.2.2 At the Front Panel..........................42 MAINTENANCE ............................43 CLEANING..............................43 PRECAUTIONS............................43 7.2.1 Connection to Line Voltage......................... 43 7.2.2...
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ARMA-C250-CRM FIGURES 1: P ) – ......12 IGURE RODUCT UTLINE REDUNDANT SYSTEM FRONT AND REAR VIEWS 2: W & )..........13 IGURE AVEGUIDE ONNECTIONS TOP VIEW SIDE VIEW 3: B )..................14 IGURE LOCK IAGRAM EACH UNIT 4: R ...............
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.
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ARMA-C250-CRM ----------------------------------------------- WARNING ----------------------------------------------------- When supplying power to this equipment, use the 3-pin connector provided, to connect to a grounded power outlet. If power is supplied without grounding to the equipment, there is a risk of receiving a severe or fatal electric shock.
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The permissible levels of exposure are quite low compared to the power levels of the amplifiers built by Advantech (e.g. less than 10 milliWatt vs 20 to 500 Watt delivered by various units). The permissible levels are currently being studied by a number of organizations. In the past the U.S.
2.2 DESCRIPTION The ARMA-C250-CRM includes two 250 W solid state power amplifiers (SSPA) and a waveguide switching unit for 1:1 redundant operation. Each SSPA incorporates a DC main power supply and a forced air cooling system. Each SSPA features an RS-485 interface that provides full remote monitor and control of selected functions.
ARMA-C250-CRM Figure 2: Waveguide Connections (top view & side view)
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OUTPUT MONITOR DRIVER POWER MODULE INPUT ISOLATOR FILTER ISOLATOR 40 dB +12V, 30 dB W/G OUTPUT 10 dB TEMP. COMPENS GAIN RF INPUT TEMP CONTROL TEMP SENSOR SAMPLE SENSORS 20 dB +12V, +12V, +12V, OUTPUT POWER REFLECTED DETECTOR POWER OUTPUT WAVEGUIDE DETECTOR ARM ASSEMBLY - 9V...
ARMA-C250-CRM AMPLIFIER "A" RF OUT A HIGH POWER SSPA INPUT A REDUNDANT SERIAL I/F A I/F A COAXIAL W/G LOAD SWITCH SPLITTER ANTENNA SERIAL I/F REDUNDANT I/F CABLE RF INPUT CABLE (TYPE N, FEMALE) SERIAL REDUNDANT I/F B I/F B...
ARMA-C250-CRM 2.5 SPECIFICATIONS The SSPA specified herein is capable of meeting or exceeding the performance specifications listed in the following table over frequency range, operating temperature and line voltage variation unless otherwise specified. The SSPA will meet all RF performance specifications within thirty minutes of application of prime power.
ARMA-C250-CRM TABLE 6: CONNECTORS Conn. Function Description Mating Connector (J1) RF Input N - Type (F) N - Type (M) (J2) Serial Interface DE - 9S (F) DE - 9P (M) (J3) Discrete Interface DB - 25S (F) DB - 25P (M)
ARMA-C250-CRM TABLE 9: DISCRETE INTERFACE (J3) – PIN ASSIGNMENTS Name Type Pin # Active condition PWRON_S output (active closed) Indicates controller power is on. RFMUT_S output (active closed) Indicates RF output is muted (i.e. off). ALARM_S output Indicates operation with degraded performance.
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ARMA-C250-CRM Notes: 1. All outputs are open-collector NPN transistors that either are turned on (active closed) or are turned-off (active open). These NPN transistors have the following characteristics: max. = 24V DC , sat = 0.8V DC @ I = 50 mA = 100 µA @ V...
ARMA-C250-CRM TABLE 10: REDUNDANT INTERFACE (J6) – PIN ASSIGNMENTS Pin # Signal Name Type Description Output, Indicates this amp is in standby with no fault and STBY-OK-OUT Active Low in auto mode. Output Common At Ground potential Input, Closure to ground indicates this amplifier is on...
ARMA-C250-CRM TABLE 11: STATUS INDICATORS Function Description of ON condition Display Power On AC power supplied LED, Green RF On RF output signal detected LED, Green Remote Remote amplifier control is enabled -- LED, Green Front panel control of some functions is disabled.
ARMA-C250-CRM 3. INSTALLATION 3.1 INSTALLATION CONSIDERATIONS 1. It is recommended that the redundant system should be installed in a rack cabinet. 2. Regardless of the installation position, ensure that there is a clearance of at least 12 inches (30 cm) between the air intakes (front of the unit), air exhaust (back of the unit) and any surface which may obstruct air flow.
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ARMA-C250-CRM 8. Repeat step 7 to tighten all screws a second time 9. Connect the RF input source to the input of the RF input splitter, see See Figure 1 at page 12 & Figure 2 at page 13. 10. Connect the AC power source to the AC connector (J5) of each amplifier. Refer to Figure 5 at page 22.
ARMA-C250-CRM 4. OPERATION 4.1 INTRODUCTION The amplifier may be operated via the RS-485 serial interface, discrete interface or the front panel controls and display. Each method provides full access to the unit’s functions including system monitoring of all key operating parameters, control of output attenuation and amplifier’s operational status.
ARMA-C250-CRM 4.2.1 F RONT ANEL YSTEM MAIN MENU SUB-MENUS Utilities, press [Enter] to access sub-menu Display product identification Display configuration Perform LED and display test Reflected power display (dBm) Output power display (dBm) Power amplifier hot spot temperature display (°C) Power amplifier shroud temperature display (°C)
ARMA-C250-CRM 4.3 REMOTE INTERFACE 4.3.1 S OFTWARE NSTALLATION AND The communications protocol for the serial interface is RS-485. To use the standard IBM compatible personal computer (running DOS 3.1 or higher) with an RS-232 serial port, you must use the RS-485/RS-232 adapter, to be provided as an option. In fact the software can be used to control up to 16 different SSPAs from a single computer.
ARMA-C250-CRM 4.3.2 U RS-485 S SING THE ERIAL NTERFACE The RS-485 serial interface provides a powerful means of monitoring and controlling key amplifier parameters. A communications program is provided with the unit that will allow full access to all amplifier functions. Note that an RS-232/RS-485 adapter is required to use the program on a PC serial port.
PC used for communication. The following image will be displayed on the display of the PC. The user should introduce the communication-port number (usually 2) and press then <ENTER> key. ADVANTECH - Advanced Microwave Technologies, Inc. Address COM port [1...4]: Copyright 1995.
MENU (SCREEN) PAGE #1 NOTE: Commands ‘F5’, ‘F6’, ‘F7’ & ‘F8’ require that the unit to be in REMOTE mode. See key ‘F2’ bytes 9 & 13 below. ADVANTECH - Advanced Microwave Technologies, Inc. Address Leds info : >00AL110010 011 S001 00#K Message : >00AM#P...
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ARMA-C250-CRM 12. ‘1’ - A request to go LOCAL was issued / ‘0’- no event 13. ‘1’ - Computer interface in control / ‘0’- Hardware interface in control (if byte #9 is a ‘1’) F3 - Requests alarm or fault message. No message bytes are shown if no message is available.
MENU (SCREEN) PAGE #2 NOTE: These commands require that the unit be in REMOTE mode with the serial interface in control. See screen (menu) page #1 key ‘F2’ bytes 9 & 13. ADVANTECH - Advanced Microwave Technologies, Inc. Address Parameters : >00AQSWT0 A0.0O43.1...
ARMA-C250-CRM MENU (SCREEN) PAGE #3 ADVANTECH - Advanced Microwave Technologies, Inc. Address Leds info : >00AL101010 011 S101 00#L Alt-X to exit PAGE - 3 - PROTOCOL: ADV, 9600, E Rev 1.40 Copyright 1995. F7AComSet F8PageA F9PageB More Figure 10: Page #3 of the Communication Program F1 to F6 - N/A (not applicable) F7 - Changes addresses (communications) of the SSPA.
ARMA-C250-CRM 4.4 DISCRETE INTERFACE The discrete interface provides all the necessary functions to monitor and control the amplifier. The unit provides open collectors for continuos monitoring alarms, faults, and amplifier status, amplifier enable/disable switching. Figure 11 at page 35 provides the detailed circuit information required for utilizing the above features.
ARMA-C250-CRM 5. CONFIGURATION AND SET-UP 5.1 SOFTWARE CONFIGURATION Insert the adapter in the desired serial port of the computer and connect the cable leading to the amplifier to the adapter. 1. The program ADV.EXE is located on the diskette enclosed with this amplifier. To use the software, first copy ADV.EXE to your hard disk.
ARMA-C250-CRM 5.3 S TART 1. Switch the power on (Front Panel). The POWER ON LED will light and a message will appear on the screen indicating that the unit is performing self-diagnostics. If everything is OK, a second message will appear identifying the model number of the unit.
ARMA-C250-CRM To switch to either LOCAL or REMOTE control mode perform the following steps: 1. From the main menu, press either [ ] or [ ] successively to select the following display: STATUS: ____ STATUS: ____ <ENTER> FOR LOCAL CTL <ENTER>...
ARMA-C250-CRM disregarding the decimal point. For example, to request a minimum output power of 30.0 dBm attenuation, enter 300. 5.6 G DJUSTMENT The output attenuation of the amplifier will be set to the factory default setting of 10dB or the previous setting stored in memory.
ARMA-C250-CRM 5.7.2 U SING THE ERIAL NTERFACE 1. Verify that the unit is in REMOTE control mode (REMOTE/LOCAL LED indicator is ON). If not, switch to REMOTE mode as instructed in Section 5.4 Select Local Control Mode at page 37.
ARMA-C250-CRM 5.10 RF INPUT AND OUTPUT MONITOR PORTS The input and output monitor ports on the front panel provide a means to measure input and output signals (in dBm) using appropriate test equipment. The coupling loss normally associated with RF sample, must be added to the power level measured at the sample port in order to obtain the proper value for input or output power level.
ARMA-C250-CRM 6. ALARMS AND FAULTS The amplifier monitors all key operating parameters and provides alarm and fault signals both on the front panel and remotely. Two LED indicators on the amplifier identify ALARM or FAULT conditions respectively. Also during a fault condition, a display similar to the following will appear on the front panel: HIST.FAULT: (message)
ARMA-C250-CRM 7. MAINTENANCE 7.1 CLEANING In order to ensure adequate cooling of the amplifier, it is recommended to inspect the unit weekly to verify that the air intake and exhaust are free of any obstruction. Clean the air intake filter with a soft bristle as nessesary. Filter can be cleaned while the unit is in service (power on).
ARMA-C250-CRM 7.4 MAIN FAULT DIAGNOSIS Description of Problem Probable Cause Refer to Section Power is On but No line voltage at the AC input. 7.5.1 Power On LED is off. The secondary power supply has failed. 7.5.5 Circuit breaker has failed 7.5.1...
ARMA-C250-CRM P12-2 to P12-3 is -15V ± 0.5V. P12-2 to P12-4 is +5V ± 0.15V. Refer to Section 7.10 at page 45 for replacement. 7.6 SSPA FAULT DIAGNOSIS 1. Verify RF input level. 2. Verify attenuation setting on front panel. Refer to Section 5.6 at page 39.
ARMA-C250-CRM 7.10.1 G ENERAL RECAUTIONS FOR ODULES EPLACEMENT WARNING: The person performing maintenance of this equipment must have training and knowledge of the product, safety requirements and safety issues related to the equipment. Read and practice the safety guidelines at the beginning of this manual (Section 1 at page 6).
7.10.2.2 Secondary Power Supply Replacement Use for replacement the Secondary Power Supply, ADVANTECH P/N 210-450256-001. In order to remove and replace the Secondary Power Supply, follow the next procedure: - shut-off the unit from the circuit breaker and unplug the unit from the primary AC power outlet;...
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ARMA-C250-CRM 7.10.2.3 48 V VARIFAN Power Supplies Replacement Use for replacement the 48 V VARIFAN Power Supply, ADVANTECH P/N 210-450794-002. In order to remove and replace a 48 V VARIFAN Power Supply, follow the next procedure: - shut-off the unit from the circuit breaker and unplug the unit from the primary AC power outlet;...
ONTROL ANEL EPLACEMENT Use for replacement the Display Control Panel (Laminate), ADVANTECH P/N 355-100850- 004. In order to remove and replace the Display Control Panel (Laminate), follow the next procedure: - shut-off the unit from the circuit breaker and unplug the unit from the primary AC power outlet;...
ODULE EPLACEMENT Use for replacement the 250 W C-Band RF Module, ADVANTECH P/N 200-615600-001 made out of DRIVER (P/N 200-110632-001) and POWER MODULE (P/N 200-114600-003). As the driver and the power module have been tuned together for optimal performances, it is recommended that the entire RF Module (Driver plus Power Module) be replaced at one time.
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ARMA-C250-CRM - remove the new RF Module from the supporting plate on which it was shipped by unscrewing all #6 screws that keep the two modules on the supporting plate; leave all #4 screws in place, as they are used for the covers only; finally install the new RF Module...
7.10.5.1 Hardware Considerations Use for replacement the Monitor and Control (M&C) Assembly for rack-mount units and RS485 serial interface, ADVANTECH P/N 210-250754-212. The Monitor and Control Board is easily reachable after the top cover of the unit is removed. Before removing the top cover, put the unit OFF and unplug it from the AC supply. Wear a grounding wrist-strap when working with the Monitor and Controller Board.
ARMA-C250-CRM 7.10.6 F EPLACING Each amplifier has four fans. Two of these fans are placed in the front of the unit and two in the back. To replace the front fans, remove the front panel grill to access the fans (by unscrewing the 8 screws that are holding it in place).
ARMA-C250-CRM 8. APPENDIX A: SAFETY AND EMC COMPLIANCE Advantech Products are compliant with the following standards: SAFETY: IEC 950 (1992) CAN/CSA-C22.2 No. 950 –92/ UL 1950 EMC: EN 55022: 1995 / CISPR22:1993 – Class A Conducted and Radiated Emission. Conducted: 0.150-30 MHz, Radiated: 30-1000 MHz.