Compact Outdoor Solid State Power Amplifier Operations Manual 205486 REV F ECO 16101 04/21/2010
Paradise Datacom 328 Innovation Blvd. State College, PA 16803 USA Telephone: (814) 238-3450 Fax: (814) 238-3829 E-mail: sales@paradisedata.
Table of Contents Section 1: General Information .......................................................................................... 9 1.0 Introduction ........................................................................................................... 9 1.1 Description ............................................................................................................ 9 1.2 Specifications .................................................................................................
3.6 RF Output Sample (J3) ....................................................................................... 28 3.7 Gain Adjust Input (J4) ......................................................................................... 28 3.8 Serial I/O Control (J4) ......................................................................................... 28 3.9 Compact Outdoor Amplifier Quick Start Guide .................................................... 29 3.9.1 Status Window ..............................
Section 8: Fixed Phase Combined Redundant Systems ................................................ 67 8.0 Phase Combining Overview ................................................................................ 67 8.1 1:1 Fixed Phase Combined System Components............................................... 69 8.1.1 Signal Box Assembly............................................................................. 69 8.2 1:1 Fixed Phase Combined System Operation with the FPRC-1100 .................. 71 8.
Section 11: Remote Operation........................................................................................ 103 11.0 Remote Operation ........................................................................................... 103 11.1 Menu Structure................................................................................................ 104 11.1.1 System Information sub-menu........................................................... 105 11.1.1.1 Sys Info Page 1 ..............................
Figure 7-4: Antenna-mounted 1:1 Redundant Compact Outdoor SSPA System ...... 46 Figure 7-5: Typical 1:1 Redundant System Outline................................................... 47 Figure 7-6: 1:1 Redundant System with Link Cable and Switch Cable installed ....... 48 Figure 7-7: 1:1 System with RS232 Communication to each Amplifier ..................... 49 Figure 7-8: M&C Program “SSPA Settings” window .................................................
Figure 11-6: Connect To window ............................................................................ 110 Figure 11-7: COM Properties window ..................................................................... 111 Figure 11-8: ASCII Setup window ........................................................................... 111 Figure 11-9: Example of Terminal Mode session .................................................... 112 Figure A-1: Quick Start Cable Schematic.....................................
Section 1: General Information 1.0 Introduction This section provides the general information for the Paradise Datacom LLC line of Compact Outdoor Solid State Power Amplifiers. The Compact Outdoor SSPA has been designed and manufactured to be an extremely robust and reliable amplifier. It is well suited for harsh outdoor environments. 1.1 Description The Compact Outdoor SSPA is a one-piece integrated Satcom amplifier system.
● Waveguide gaskets (dependent on frequency band) ● Sealing tape (87F730) 1.4 Safety Considerations Potential safety hazards exist unless proper precautions are observed when working with this unit. To ensure safe operation, the user must follow the information, cautions, and warnings provided in this manual as well as the warning labels placed on the unit itself. 1.4.1 High Voltage Hazards Only qualified service personnel should service the internal electronic circuitry of the Compact Outdoor Amplifier.
Section 2: Installation 2.0 Introduction This section provides information for the initial inspection, installation, external connections, and shipment of the Compact Outdoor SSPA unit. 2.1 Inspection When the unit is received, an initial inspection should be completed. First ensure that the shipping container is not damaged. If it is, have a representative from the shipping company present when the container is opened.
Table 2-2: Compact Outdoor Amplifier Prime Power Summary Band C-Band 5.850 - 6.425 GHz RF Output Power AC Input Voltage AC Input Power Psat / P1dB Operating Range Maximum HPAC2030ACXXXXX 45.0/44.8 dBm 90 – 265 vac 250 W HPAC2040ACXXXXX 46.0/45.8 dBm 90 – 265 vac 300 W HPAC2050ACXXXXX 47.0/46.8 dBm 90 – 265 vac 400 W HPAC2075ACXXXXX 48.8/48.5 dBm 90 – 265 vac 450 W HPAC2100ACXXXXX 50.0/49.5 dBm 90 – 265 vac 700 W HPAC2140ACXXXXX 51.5/51.
2.3 DC Input Option [MS3102E-20-29P] The Compact Outdoor Amplifier can also be configured with a DC Input Voltage power supply. The DC Input Voltage can range from 42-60 VDC. When using a DC input voltage the input power connector, J7, is configured per Table 2-3. Table 2-3: DC Input Connector, MS3102E-20-29P Connection Pin # on J7 Connection +48 V L -48 V +48 V M -48 V +48 V N GND -48 V Pin # on J7 B C D K 2.
SSPA STATUS SWITCH J6 M&C J4 RF IN J1 LINK J5 Figure 2-2: Input Side, Compact Outdoor Amplifier Figure 2-2 shows the input side of the Compact Outdoor Amplifier. This side contains the RF input (J1), M&C input (J4), and the Interface connections (J5, J6). 2.5.1 RF Input (J1) [N-type (F)] The RF Input connector is a type N female connector. Nominal RF input levels are approximately -28 dBm depending on the output power level of the unit.
AC IN J7 MODEL: XXXXXXXXXXXX S/N: XXXX SAMPLE J3 J8 AUX POWER P/N: LXXXXXX-X Figure 2-3: Bottom View, Compact Outdoor Amplifier 2.5.4 RF Output Sample Port (J3) [N-type (F)] The RF Output Sample port, J3, is located on the bottom of the amplifier as shown in Figure 2 -3. This connector provides a -40 dBc sample of the amplifier’s output signal. It is a N-type female connector. 2.5.
2.5.8 AC Input (J7) The AC Input connector, J7, is located on the bottom side of the Compact Outdoor Amplifier package. There are also two alternate placements for this connector on the RF Output end of the amplifier as shown in Figure 2-4. This connector is a 3-pin circular connector, MS3102E20 -3P. The mating connector (MS3106E20-3S) is shipped with the unit. The pin out for this connector is given in Table 2-1. 2.5.
2.7 Fiber-Optic Option The Compact Outdoor Solid State Power Amplifier is available with an external fiber-optic conversion box. This configuration requires the addition of a 1RU RCPF-1000 Fiber Optic Control Panel. The Fiber-Optic Option is not available in S-Band units. 2.7.1 RCPF-1000 Fiber Optic Controller The RCPF-1000 Fiber Optic Controller provides easy remote monitor and control of the Compact Outdoor SSPA with integral or external fiber-optic interface.
2.7.2 External L-Band to Fiber Interface The External L-Band to Fiber Interface is a machined aluminum watertight enclosure, with N-type connectors for L-Band RX and TX and fiber-optic connectors for the Fiber TX and RX signals. The enclosure is powered via a +15 VDC Input port connected to a Compact Outdoor SSPA’s 15VDC Output port (J8). An outline drawing of the enclosure is shown in Figure 2-6.
Figure 2-8: Block Diagram, Compact Outdoor with external fiber transceiver EVOLUTION SERIES L-BAND MODEM COAX RCPF-1000 FIBER OPTIC CONTROLLER OFM-1000 FIBER TO L-BAND CONVERTER COMPACT OUTDOOR SSPA FIBER OPTIC LINK RF OUT COAX RS-485 / RS-232 / 10Base-T Ethernet CARRIES FSK CONTROL PLUS OTHER SIGNALS DATA WITH INTEGRAL ZBUC OPTIONAL PC CONTROL RF IN COAX LNB PC Figure 2-9: System example, SSPA with External Fiber to L-Band Converter Operations Manual, HPA2, Compact Outdoor SSPA 205486 REV F
2.8 Unit Weights The Compact Outdoor SSPA is available in a variety of frequency bands and power levels, and have a multitude of options which makes each unit weigh slightly different from another. The following chart, Table 2-7, outlines the weights for the most common power levels of Compact Outdoor SSPA. Table 2-7: Compact Outdoor SSPA Weights Band C-Band Ku-Band X-Band S-Band KaBand 20 Model Base Weight lbs (kg) With zBUC lbs (kg) With 110 VAC Option lbs (kg) HPAC2030AC... 36.5 (16.6) +1.7 (+0.
2.9 Compact Outdoor Mounting Kit Installation These instructions outline how to install a single Paradise Datacom Compact Outdoor SSPA unit onto an antenna boom using a Universal Compact Outdoor Mounting Kit. This kit allows installation of the Compact Outdoor SSPA on antenna booms up to 10” thick. 2.9.1 Safety Considerations These instructions are designed to be used by a single operator. As such, several safety issues should be kept in mind during the installation. 1.
2.9.3 Installation 1. Locate the mounting studs on the bottom of the Compact Outdoor SSPA unit. Using a ½” bolt, two flat washers, and a ½” nut, firmly bolt one mounting bracket to each mounting stud, as shown in Figure 2-10. Be sure each bracket is vertical, and the top flange of the mounting bracket points away from the unit. Figure 2-10: Bolt Mounting Bracket to Unit 2.
3. Bring the unit up tight under the boom (with the long axes parallel), sliding the All-Thread studs past the sides of the boom to show above the boom top. Place the remaining pieces of Uni-strut (open channel down) across the boom, onto the protruding All-Thread stud ends. Secure firmly with a flat washer and ½” nut on each of the four All-Thread stud ends. Looking from the end of the boom, the mounted unit should look as shown in Figure 2-12. Figure 2-12: Compact Outdoor Mounting Completed 4.
ANTENNA BOOM Figure 2-13: Outline Drawing, Compact Outdoor Mounting Kit 24 205486 REV F Operations Manual, HPA2, Compact Outdoor SSPA
Section 3: Operation 3.0 Introduction This section of the manual describes the operation of the Compact Outdoor Solid State Power Amplifier. The Compact Outdoor unit has been designed for maximum flexibility in amplifier system configuration. It has a full compliment of parallel I/O monitor and control signals as well as serial I/O capability using a PC and host communication software from Paradise Datacom LLC. Table 3-1 shows the pin out of the Monitor and Control connector, J4. 3.
Table 3-1: Monitor & Control Connector, J4 Signal Type Function Pin Notes Mute Input Closure to Ground Disables DC Power to SSPA B Unit Powers up Muted, This line must be pulled to ground (V or d) to enable amplifier Auxiliary Input Closure to Ground Auxiliary Fault Input P Summary Alarm Form C Relay Closed on Fault Common Open on Fault L a b Closed on Fault Common Open on Fault N Z M Z-M: normally closed Open Collector High on Fault W Reserved Auxiliary Alarm Open Collector High
3.4 Alarms (J4) A variety of alarm signals are present at the M&C connector, J4. Both Form-C relays and open collector outputs are available. An amplifier summary alarm is available in both Form C relay and open collector output. Detailed internal faults are available in open collector form and include: voltage, current, and over-temperature. 3.4.1 Summary Alarm (J4) Form C Contacts The Summary Alarm is accessible in both Form C relay and open collector format.
3.5 RF Power Detector (J4) The RF Power Detector is an analog output voltage that is proportional to the RF output power. The maximum output voltage is 4.0 VDC which corresponds to the maximum (saturated) output power from the amplifier. This detected voltage is useful over a 20 dB range of output power. 3.6 RF Output Sample (J3) An RF sample of the amplifier’s output is available at J3. This is a -40 dBc coupled sample of the amplifier’s output signal. 3.
The Compact Outdoor Amplifier is supplied with a cable in which this connection is already made. This allows the user to quickly setup the amplifier and verify its operation. The other side of the cable has a 9-Pin female D connector that mates with most notebook and desktop personal computers. 3.9 Compact Outdoor Amplifier Quick Start Guide ● Unpack the amplifier and connect the RF Input and RF Output as described earlier in this manual. ● Connect the AC input power to connector J7.
● Specify the unit’s Address in the Amplifier Address box. If you don’t know the address of the unit you may search for it. Be aware that this search feature is only useful when you have only one unit connected to your PC at a time. ● If you wish to change the log file location, click on the [Browse] button and navigate to the desired location. See Section 3.9.3 for more information about the log file. ● Click on the [Create] button to generate the operation window for this unit.
3.9.1.1 Signal Indicators Three rows of LEDs show the connection status of the connected amplifier. Top-most is an indicator that displays a green LED when Connected, or a red LED when Disconnected. Immediately below are two LEDs for the TX and RX paths. The LED in the third row displays the mute state (Carrier Enable). This is actually a toggle which allows the user to Enable or Mute the amplifier. 3.9.1.
RX Checksum Alarm: The RX Checksum Alarm indicates when an invalid checksum byte is communicated to the unit. External Mute Alarm: The External (Ext) Mute line gives an indication via the M&C screen that the SSPA has been externally muted by J4-Pin B. This external mute alarm can be configured to trigger a summary alarm if desired. The factory default is to signal a External Mute fault but no Summary Alarm.
3.9.1.5 RF Power Indicator The RF Power indicator is the vertical meter in the central part of the Operation window. This indicator reports the approximate output power of the amplifier. It uses the voltage from the RF Power Detector to determine a corresponding power level in dBm. The accuracy of the power indicator is ± 1 dB at the mid-point of the specified band, with a single CW or QPSK carrier. 3.9.1.6 Carrier Enable This button toggles between the “Enabled” and “Muted” conditions.
3.9.2.1 Power Up Settings The Compact Outdoor amplifier will power up with the “last-state” settings before the unit was powered down. Whatever attenuation setting or mute state the amplifier was in when powered down will be the restored settings when the amplifier is powered back on. Operation Mode: Select between stand alone (single unit) or redundancy mode of operation. Hierarchical Address: Identifies each amplifier in a redundant system as HPA 1 or HPA 2.
Fault Setup: This feature allows the user to set the Spare Fault Trigger using the Spare Fault Wizard. Click on the Spare Fault Wizard button, which opens a new window. See Figure 3-5. Select between the following fault triggers: LNB Current, Gate Voltage, Regulator Voltage, Power Supply Voltage, SSPA Current, External Mute, or None. Set the range of maximum and minimum thresholds that would trigger the selected fault, and configure the fault handling via a pull-down menu.
3.9.3 Universal M&C Preferences The user can adjust certain preferences of the Universal Monitor and Control Software. See Figure 3-6. Figure 3-6: Preferences Window Queries: Enable and adjust the interval that the software queries the unit. Note that if queries are disabled, there will be no communication with the unit at startup. Logs: Enable and adjust the interval that the software writes to the log.
Section 4: Theory of Operation 4.0 Introduction This section contains information on the theory of operation of the Compact Outdoor Solid State Power Amplifier. This includes a discussion of the system block diagram, amplifier module operation, and unique cooling system. The Compact Outdoor Solid State Amplifier has been designed to be an extremely robust microwave amplifier system. It is very well suited for environmentally demanding conditions where reliability is paramount.
4.1 EMI Filter and Transient Protection The EMI (Electro-magnetic Interference) Filter is a passive electronic device used to suppress conducted interference present on any power or signal line. It may be used to suppress the interference generated by the device itself as well as to suppress the interference generated by other equipment to improve the immunity of a device to the EMI signals present within its electromagnetic environment.
SSPA Module Current Regulator Voltage Power Supply Voltage Negative 5v Gate Voltage Optional Power Supply Temperature RF Output Power Detector Analog Gain Adjustment (1) 10 bit D/A for SSPA Gain Adjustment / Temperature Compensation 20 dB gain adjustment with 0.1 dB resolution (1) Very Accurate Digital Temperature Sensor 0.5 degree resolution within 1°C of SSPA module case temperature 4.
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Section 5: Performance Tests 5.0 Introduction This section describes some of the standard RF tests performed on production amplifiers before shipment. Where possible Paradise Datacom, LLC maintains computer automated RF test stations to ensure a high level of accuracy and consistency to production amplifier testing. 5.1 Gain and Gain Flatness The amplifier gain is swept over the operating frequency range under small signal conditions to confirm the minimum gain and gain flatness specifications.
5.6 Intermodulation Distortion Intermodulation distortion is one of the most important characteristics of a solid state power amplifier system. Satellite communication systems must comply to certain distortion levels depending on the service involved. All production amplifiers are subjected to automated intermod testing. This is based on a standard two-tone intermod test in which the intermod level (IMD) is measured in dBc with respect the main tones and the highest third order intermod products.
Section 6: Maintenance 6.0 Introduction This section describes some of the standard maintenance practices that can be performed on the Compact Outdoor Amplifier. 6.1 Cooling System Maintenance It is recommended that the cooling system be checked at least once per month. This involves visually inspecting the fan intakes to make sure that there is no obstructions over the intake. The Windows-based M&C program can be used to check the amplifier base plate temperature.
6.2.1 Fan Replacement Older models of the Compact Outdoor SSPA were fitted with a 2-fan cooling fan assembly. The newer models utilize a 3-fan cooling fan assembly. While the fan interface connectors for the two-fan and three-fan tray assemblies are identical, they should not be used interchangeably. If your Compact Outdoor SSPA was shipped from the factory with the three-fan air intake tray, any maintenance requiring replacement of the fans should only use the three fan kit (L205192 -1).
Section 7: Redundant System Operation 7.0 Redundant System Concepts The Compact Outdoor Amplifier is capable of operating in a variety of redundant system configurations. These include 1:1 and 1:2 as well as 1:1 with L-Band Block Up Converters. The Compact Outdoor Amplifier has a built-in 1:1 redundancy controller, allowing it to be used in 1:1 redundant systems without a separate external controller. When used in a 1:2 redundant system a separate controller, RCP2-1200, is required.
The system shown in Figure 7-3 uses the same concept of the power splitter on the RF input. In this case the Compact Outdoor amplifiers are equipped with L-Band block up converters. LBand input amplifiers use phase locked oscillators as the local oscillator to the up converter. Such systems must use a splitter at the input instead of a switch so that the reference input is always available to the standby amplifier.
7.1 Compact Outdoor Amplifier in 1:1 Redundancy The Compact Outdoor Amplifier is ideally suited for a self-contained and cost effective 1:1 redundant system. Each Compact Outdoor Amplifier has a built-in 1:1 redundant controller. The controller is activated via computer command from the Paradise Datacom Universal M&C application. The Compact Outdoor Amplifier may be purchased as a redundant system or upgraded in the field from a single thread amplifier to a 1:1 redundant system.
7.1.1 Hardware Setup The hardware setup for a Compact Outdoor 1:1 Redundant System is very simple and involves the addition of (2) cables along with a redundancy switch. A schematic diagram of the redundancy setup is shown in Figure 7-6.
7.1.2 Software Setup To instruct the Compact Outdoor Amplifier to operate in redundancy it is necessary to temporarily connect it to a PC running the Paradise Datacom Monitor and Control Software to set up the redundant configuration. There are 3 basic modes of Redundant System communication. 1. Stand-Alone 1:1 Redundant System—No Computer Control 2. PC Control using RS232 and Paradise M&C Software 3. PC Control using RS485 and Paradise M&C Software 7.1.2.
Each amplifier can be configured for redundancy by the Paradise Datacom Universal M&C software that ships along with each unit. Using the Quick-Start cable, connect each amplifier to the PC and run the M&C program. Select the “Settings” tab from the main form. The “Settings” window will appear as shown in Figure 7-8. 1. System Mode: Each SSPA’s System Mode must be set to “1:1 Redundant Mode” 2. Choose a Hierarchical Address for each amplifier.
The Standby amplifier can be muted to have a “Cold Standby” condition. It keeps the SSPA module powered down for power savings while the microprocessor and fans remain operational. SSPAs with Parallel I/O board firmware version 3.50 or beyond are provided with a true cold standby mode. In this mode, the SSPA will be muted automatically. Cold standby mode has to be selected through a serial control interface (For details, see Table 10-6, data address 20).
7.1.2.2 PC Control using RS232 and Paradise Universal M&C Software In applications requiring remote monitor and control of the redundant system, the Paradise Datacom Universal M&C program has a control panel that can be used for this purpose. To enable the 1:1 system to operate with the remote control software, first configure each amplifier for 1:1 redundant operation as previously described in the Stand-Alone 1:1 Redundant System section.
Figure 7-10: Add New Compact Outdoor SSPA window From this screen choose the COM port and baud rate. The factory default baud rate is 9600. If a single SSPA is used the Global network address setting should be used. After the COM port has been selected the “Operation” window will be displayed. At this point if the SSPA is connected to a power source and turned on, the SSPA will begin communicating with the M&C program and its operating parameters will be displayed.
Once reliable communication has been established between each amplifier and the computer, the Redundancy Control Panel can be displayed. From the M&C program’s main window, choose “Action” “Internal Redundant System” “1:1 Compact Outdoor SSPA System”. See Figure 7-12. Figure 7-12: Paradise Datacom Universal M&C, Add Unit Menu Tree The Redundant Control Panel window will then be displayed as in Figure 7-13. Note that once the Redundant Control Panel is enabled, the Main Menu on the M&C program changes.
Figure 7-14: Redundant Control Panel in the Paradise Datacom M&C Program showing a configured 1:1 Redundant System From the Control Panel display all typical 1:1 system functions can be monitored and controlled. A particular SSPA can be put on line be selecting the command button for either amplifier. The online amplifier will be indicated by the “Online” notation. The standby amplifier will be listed as such as shown in Figure 7-14 (Unit 2).
If the online amplifier enters a fault condition, the redundant switch will automatically route the signal to the Standby amplifier. The faulted amplifier will be colored red in the Redundancy Control Panel display. See Figure 7-16. Figure 7-16: Control Panel showing Unit 1 faulted and signal routed to Unit 2 By clicking on the [Unit1] button (which will be labeled to correspond to the unit’s name), the M&C Status window for Unit1 is activated, so the user may determine the cause of the fault.
7.1.2.3 PC Control using RS485 and Paradise M&C Software Applications requiring long cable runs between the computer and the 1:1 Redundant System may use RS485 communication. The Compact Outdoor Amplifier’s firmware supports networking on a RS485 bus. This type of network can be used to support the 1:1 Redundant System. The RS485 link can typically be run up to 4000 ft. (1200 m) lengths. A good quality twisted pair cable should be used along with proper line terminations.
J3 OUTPUT SAMPLE SSPA 2 J4 MONITOR & CONTROL T E U J5 LINK A F TX - RX + TX + B J6 SWITCH F F C E SWITCH A2 (J6) RX - C 1 B A LINK CABLE SWITCH CABLE F E RF OUTPUT 4 2 3 D SSPA 1 B A J5 LINK F F C E A1 (J6) J6 SWITCH J4 MONITOR & CONTROL T E TX + TX - U F RX + J3 OUTPUT SAMPLE RX - + - Figure 7-19: 1:1 Redundant System with RS485 Half Duplex Communication 58 205486 REV F Operations Manual, HPA2, Compact Outdoor SSPA
7.2 1:2 Redundant Systems The Compact Outdoor Amplifier can also be configured in 1:2 Redundant Systems. The major difference being that the amplifier’s internal controller can not be used for system control. Instead a separate RCP2-1200 Redundant System controller is used to provide system control. The controller can be remotely located from the amplifiers up to 500 ft. Figures 7-20 through 7-23 show a 1:2 Compact Outdoor Amplifier Redundant System.
SYSTEM CONTROL SERIAL COMM RF IN POL 1 RF IN POL 2 Ku-Band 1 :2 SSPA Sy stem Figure 7-22: Outline, 1:2 Redundant System 60 205486 REV F Operations Manual, HPA2, Compact Outdoor SSPA
Figure 7-23: Schematic, 1:2 Redundant System Operations Manual, HPA2, Compact Outdoor SSPA 205486 REV F 61
7.3 1:2 Redundant Systems with L Band Input The 1:2 Redundant System with L Band Input can be configured with internal Block Up Converters that contain internal 10 MHz reference oscillators or configured for use with an external 10 MHz reference source. Systems configured with internal 10 MHz reference are straightforward extensions of the basic 1:2 architecture. Because the 10 MHz reference is integral to the converter there is no possibility of an interruption of the 10 MHz during switchover.
BUC Amp 1 RF OUT-POL 1 L Band Input- POL 1 10MHz BUC Amp 2 L Band Input- POL 2 10MHz RF OUT-POL 2 BUC Amp 3 No path for 10MHz to the Standby BUC RCP2-1200 Redundant Controller Alarm Inputs Switch Drive Figure 7-25: 1:2 Redundant System with External Reference showing the absence of 10 MHz reference to the stand-by BUC A special case of the 1:2 Redundant System exists when an external reference is required of the system.
During Switch-Over, 10MHz is interrupted to Standby BUC BUC Amp 1 L Band Input- POL 1 RF OUT-POL 1 10MHz BUC Amp 2 RF OUT-POL 2 L Band Input- POL 2 10MHz BUC Amp 3 10 MHz, Standby RCP2-1200 Redundant Controller Alarm Inputs Switch Drive Figure 7-26: 1:2 Redundant System with (3) 10MHz inputs through the input switches.
BUC Amp 1 DBTC-16-5-75L+ -16dB RF OUT-POL 1 L Band Input- POL 1 10MHz BUC Amp 2 3 dB PAT-3 ADP-2-1 L Band Input- POL 2 10MHz RF OUT-POL 2 BUC Amp 3 -16dB DBTC-16-5-75L+ L-Band only L-Band Test Input Test Input to Standby to Standby Reference Combiner Assembly RCP2-1200 Redundant Controller Alarm Inputs Switch Drive Figure 7-27: Standard 1:2 Redundant System with External 10MHz Reference using the Reference Combiner Assembly.
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Section 8: Fixed Phase Combined Redundant Systems 8.0 Phase Combining Overview Phase combining amplifiers has long been a popular means of increasing the output power of an amplifier system. Under high power microwave conditions it is common to utilize some form of waveguide hybrid coupler to combine the output power of two amplifiers. This coupler is generally a waveguide tee such as a four port magic tee.
Figure 8-2: 1:1 Fixed Phase Combined System with FPRC-1100 controller A technique has been developed which accomplishes phase combining and provides redundancy with two waveguide transfer switches. A block diagram of such a system is shown in Figure 8-2. This type of system is sometimes referred to as a “Fixed Phase” combined system to differentiate it from the Variable Phase Combiner (VPC) systems commonly used with TWTAs.
power combining. To the operator, the system appears as a single amplifier. The operator can choose between using the system as a phase combined system or a traditional redundant system. 8.1 1:1 Fixed Phase Combined System Components An outline drawing of a 1:1 Fixed Phase Combined Amplifier assembly is shown in Figure 8-3 on the following page.
P/N: L203014-X PARADISE DATACOM FPRC-1100 1:1 PHASE COMBINED SYSTEM CONTROLLER S /N: XXXX M ODEL: XXXXXXXXXXXX Ku-Band Solid State Power A mplifier System SW2 SW1 SW1 SW1 RF - IF IN J1 SW2 SWITCH DETECTED RF INPUT HPA J7 J8 RF OUT HPA 1 RF OUT RF OUT HPA 2 HPA 3 J4 CONTROLLER J6 BUC POWER J9 SERIAL COMM J5 J10 Figure 8-3: Outline, 1:1 Fixed Phase Combined System 70 205486 REV F Operations Manual, HPA2, Compact Outdoor SSPA
8.2 1:1 Fixed Phase Combined System Operation with the FPRC-1100 Under normal system operation, both HPA 1 and HPA 2 are on-line. Their output power is combined at the magic-tee waveguide combiner. The waveguide combiner has an integral RF sampler that provides a sample of the RF output sample at -40 dBc. This port feeds an RF attenuator/diode detector combination. The detector’s output voltage is sent back to the Signal box via a coaxial cable and linked to the FPRC-1100 Redundant Controller.
8.3 1:1 Fixed Phase Combined System with L-Band Input The basic 1:1 Fixed Phase Combined system topology is very similar to a 1:1 redundant system and is shown in Figure 8-5. When in Automatic mode the waveguide switches (S1& S2) either direct the each amplifier output to the waveguide phase combiner or, if lower output power is required, bypass the combiner and send an individual amplifier output to the system output.
8.3.1 1:1 Fixed Phase Combined System with L-Band Input Components An outline drawing of a 1:1 Fixed Phase Combined Amplifier with L-Band Input assembly is shown in Figure 8-6 on the following page.
SYSTEM INTERFACE RF OUT RF OUT CONTROLLER INTERFACE DETECTED J5 HPA2 RF/IF INPUT RF/IF INPUT HPA1 J6 RF INPUT J3 J1 J2 J4 J8 SERIAL COMM PARADISE DATACOM FPRC-1100 1:1 PHASE COMBINED SYSTEM CONTROLLER ∑ J7 Figure 8-6: Outline, 1:1 Fixed Phase Combined System with L-Band Input 74 205486 REV F Operations Manual, HPA2, Compact Outdoor SSPA
8.3.5 Adjusting the Phase Combining The system is phase adjusted for optimum performance across the frequency band at the factory, and no adjustments are typically needed except in the event that a SSPA has been replaced. The SSPAs are manufactured to a delay specification, but an adjustment may be necessary to achieve the best operation in the system. After the new SSPA has been placed in the system, apply power to the system and enable both amplifiers.
In this system, amplifiers 1 and 3 are normally online. The outputs of 1 and 3 are directed by the waveguide switches into a fixed phase combiner such as a waveguide “magic tee” style combiner. In the event of a failure of either on line amplifier, the standby amplifier, 2, can be switched in place of either 1 or 3 and the system maintains full output power. The 1:2 Fixed Phase Combined Amplifier System can be configured with any of the Compact Outdoor Amplifiers listed in Appendix E in either C or Ku band.
COMM J5 SERIAL BUC J6 POWER J9 CONTROLLER J4 RF OUT HPA 3 RF OUT HPA 2 RF OUT J2 J8 J3 SWITCH HPA 1 J7 HPA DETECTED RF INPUT J10 C-Band Fixed Phase Combi ned System Figure 8-8: Outline, 1:2 Fixed Phase Combined System Operations Manual, HPA2, Compact Outdoor SSPA 205486 REV F 77
The Signal Box also contains two phase shifters. These phase shifters are in cascade with the RF input to HPA 1 and HPA 3. These allow the system to achieve optimum power combining and are factory set for optimum combining across the full bandwidth of the amplifier. They should not normally require adjustment in the field unless and amplifier has been replaced. 8.5 1:2 Fixed Phase Combined System Operation with FPRC-1200 Under normal system operation, HPA 1 and HPA 3 are on-line.
8.5.1 Output Power Adjustment Each 1:2 Fixed Phase Combined SSPA System has been factory set for optimal Phase Combining before shipment and should not need adjustment during installation and operation. In the event that an amplifier is replaced, it may then be necessary to make additional phase adjustment. The two phase adjusters are located inside the Signal Box and are labeled PA1 and PA2.
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Section 9: L-Band Operation 9.0 Block Up Converter Overview The Compact Outdoor SSPA is available with various L-Band up converter options. The primary up converter option is the Zero dBm Block Up Converter, ZBUC. ZBUC is offered in four C-Band configurations, two Ku-Band options, and one X-Band model. The ZBUC is not available in S-Band units. See Table 9-1 for specifications for the respective models. The ZBUC offers ultra low phase noise for applications where phase noise is an overriding factor.
Block Up Converter Module SSPA Module 55 - 75 dB Gain L Band Input DeMux Reference Input Optional FSK Phase Locked Local Oscillator Optional Internal Reference FSK Optional FSK Monitor & Control Figure 9-2: Compact Outdoor Block Diagram of BUC / SSPA System It is important to remember the requirement of a 10 MHz reference oscillator when operating an SSPA with BUC (SSPB). If the 10 MHz reference is not present, the M&C will report a BUC alarm and the SSPA module will mute.
9.2 ZBUC Theory of Operation The ZBUC is a low gain block up converter with a P1dB of 0dBm. This topology allows the system to be integrated with little impact on the general electrical specifications of the SSPA module. The ZBUC utilizes single up conversion from L-Band to the desired RF band. The local oscillator circuits are designed to maintain the lowest possible output phase noise.
Notes: 1) The external reference option requires the system operator to provide system reference to the ZBUC/SSPB. The system will not lock and will have no output without external reference applied. 2) Internal reference option allows for either internal or external reference operation.
9.5 Typical System Configuration This section shows the Compact Outdoor SSPB in a common system application. Figure 9-3 shows the Compact Outdoor used with a Paradise Datacom Evolution Series PD25 modem. Indoor Equipment Outdoor Equipment PARADISE DATACOM IFL Cable RS485 M&C IF: 950 - 1450 MHz (-30 to -20 dBm ) at Compact Outdoor SSPB Ref: 10 MHz (-5 dBm to +5 dBm) at Compact Outdoor SSPB Figure 9-3: Compact Outdoor SSPB with PD25 Evolution Modem 9.
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Section 10: Remote Control Interface 10.0 Serial Communication Protocol This section describes the basic serial communication protocol between the Compact Outdoor SSPA and a host computer. Serial port settings must be configured for 8 bit data at no parity, with 1 stop bit. The Amplifier will only respond to properly formatted protocol packets. The basic communication packet is shown in Figure 10-1. It consists of a Header, Data, and Trailer sub-packet.
10.1.3 Source Address The source address specifies the address of the node that is sending the packet. All unique addresses, except the broadcast address, are equal and can be assigned to individual units. The host computer must also have a unique network address. 10.2 Data Packet The data sub-packet is comprised of 6 to 32 bytes of information. It is further divided into 7 fields as shown in Figure 10-3. The first 6 fields comprise the command preamble while the last field is the actual data.
10.2.4 Data Tag The data tag specifies the type of internal resource or information needed to be accessed on the Compact Outdoor Amplifier. The data associated with certain tags is read only. Therefore only the “Get” command byte would be associated with these data tags. The data tag byte values are given in Table 10-2.
10.2.5 Error Status / Data Address This byte is a tag extension byte and specifies the first data element of the tagged data. If the Data Length is more then 1 byte, then all subsequent data fields must be accessed starting from the specified address. For example if the requestor wants to access the amplifier’s unique network address, it should set data tag 0 (System settings tag) and data address 8 (see System Settings Details table).
10.3 Trailer Packet 10.3.1 Frame Check The trailer component contains only one (1) byte called the Frame Check Sequence, shown in Figure 10-7. HEADER (4 bytes) DATA (6-32 bytes) TRAILER (1 byte) Frame Check Checksum (1 byte) Figure 10-4: Trailer Sub-Packet This field provides a checksum during packet transmission. This value is computed as a function of the content of the destination address, source address and all Command Data Substructure bytes.
Table 10-4: Request Frame Structure Byte position Byte Value (Hex) Description 1 0xAA Frame Sync 1 2 0x55 Frame Sync 2 3 Destination Address -//- 4 Source Address -//- 5 Protocol Version Protocol compatibility hole, must be set to 0 6 Request ID Service Byte 7 Command 0, Set Request; 1, Get Request 8 Data Tag 0, System Settings; 1, System Thresholds; 2, Temp.
Table 10-6: System Settings Data Values Data Address # Bytes Description 1 1 System Operation Mode 2 1 System Hierarchical Address Single Amplifier = 255; Dual 1:1 = 1 (version 3.60); 1:1 Redundant = 0 HPA 1= 0; HPA 2= 255 3 1 Unit Start Up State (in Redundancy) Standby Amplifier = 0 On Line Amplifier = 1 4 1 Mute State 5 1 Attenuation Level (dB down from maximum gain) [1 bit for every 0.
Table 10-7: System Condition Addressing Data Address # Bytes Description Limits and valid values 1 2 Present DAC value (Read Only in Temp Co Mode) 0 to 1023 2 2 Present Temperature + 125 2-Byte Value 0 fault clear; 1 fault set 0 mute clear; 1 mute set 0 standby state, 1 on line state 3 2 Fault, Mute, and State Conditions Lower Byte Bit 0 = Summary Fault Bit 1 = High Temp Fault Bit 2 = Low DC Current Fault Bit 3 = Low DC Voltage Fault Bit 4 = External Mute Status Bit 5 = Internal Mute Status B
Table 10-8: ADC (Analog-Digital Converter) Addressing Data Address # Bytes 0 2 Current value of ADC channel 0 Reserved Value Range: 0 to 1023 Conversion: N/A 1 2 Current value of ADC channel 1 RF Power Detector #1 Reflected Value Range: 0 to 1023 Conversion: N/A 2 2 Current value of ADC channel 2 Analog Gain Adjust Voltage Value Range: 0 to 1023 Conversion: 1 value = 2.
10.5 Examples 10.5.1 Example 1 Table 10-10 shows an example of a communication exchange between a PC and Compact Outdoor Amplifier.
The Compact Outdoor Amplifier replies with the response string of Table 10-11. Table 10-11. Example 1 SSPA Response String Byte Position Byte Value (Hex) 1 AA Frame Sync Byte 1 2 55 Frame Sync Byte 2 3 A Destination Address of PC request originator 4 5 Source address of Responding Amplifier 5 0 Protocol Version Compatibility Field must always be 0 6 6F 7 3 Command field for “Get” type response 8 0 “SSPA Settings” tag indicates which data from respondent included in response frame.
10.5.
Figure 10-5: Example 2 Protocol Debugger Window in M&C Software. Note Byte values given in decimal representation.
10.5.3 Example 3 Check SSPA Faults and Condition Status ● SSPA Network Address = 5 ● Host Computer Network Address = 10 ● Request ID = 0x6F Table 10-14.
Table 10-16. Example 3 SSPA Response String Byte Position Byte Value (hex) Description 1 AA Frame Sync Byte 1 2 55 Frame Sync Byte 2 3 A Destination Address of PC request originator 4 5 Source address of the respondent 5 0 Protocol Version Compatibility Field must be always 0 6 6F Echo of the Originator’s Request ID byte 7 3 “Get Response” designator 8 3 Data Tag 3.
Figure 10-6: Example 3 Protocol Debugger Window in M&C Software. Note Byte values given in decimal representation.
Section 11: Remote Operation 11.0 Remote Operation The Paradise Datacom Compact Outdoor SSPA utilizes Terminal Mode Serial Protocol (TMSP) as a secondary serial protocol for Management and Control through a Remote Serial Interface. TMSP allows the user to access internal SSPA functions via a remote ASCII Terminal or its equivalent (such as HyperTerminal for Windows). TMSP is accomplished through either the RS-232 or RS-485, half duplex, serial communication link. U.S.
11.1 Menu Structure All Compact Outdoor TMSP menus are organized in logical sublevels: Informative and Main Menu Selection. At the beginning of the session, the SSPA will prompt the user with the first menu of the Informative sublevel. The user can access the Main menu from any informative sublevel by sequentially selecting the “M” and “Enter” keys on the remote terminal keyboard. Figure 11-1 shows the Main menu structure hierarchy. There are five main levels of the menu selection: 1. Sys.
11.1.1 System Information sub-menu The informative sublevel of the menu structure contains five (5) pages, as shown in Figure 11-2. Atten.(dB):XX.X Alarms:XXXXXX RFOut(dBm):XX.X Temp.(C):XXX Active Keys:(U)p+Enter; (D)own+Enter; (C)lrearFlt; (M)enu+Enter; (E)nd+Enter Voltage:XXXXXX Current:XXXXXX Temperature:XXXXXX Spare:XXXXXX Active Keys:(U)p+Enter; (D)own+Enter; (C)lrearFlt; (M)enu+Enter; (E)nd+Enter BUC:XXXXXX AUX:XXXXXX Int.Mute:XXXXXX Ext.
11.1.1.3 Sys Info Page 3 This page reflects various SSPA faults and conditions. • BUC – Displays the block upconverter (BUC) fault (if equipped). Values “Fault” or “Normal”; • Aux – Displays the auxiliary fault condition. Values – “Fault” or “Normal”; • Int.Mute – Displays the internal mute condition (mute state controlled by internal SSPA hardware, such as serial protocol command or automatic over temperature shutdown). Values – “Off” or “On”; • Ext.
11.1.1.6 Communication Setup sub menu This menu allows the user to select the parameters for communication between the SSPA and the remote monitor and control station. All changes made on this menu will take effect only after a hardware reset of the SSPA controller card. This can be accomplished by either cycling the SSPA AC power or selecting the menu item from Terminal mode “Options” “Reset” menu item. Protocol This selection allows the user to change the SSPA default serial protocol setting.
11.1.1.8 Fault Setup sub menu This menu allows the user to customize Auxiliary fault setup. Aux. Action Allows the selection of the final effect of the auxiliary fault on an SSPA operation. Selection: Fault (Major Fault), Fault + Mute, Alert (Minor Fault). Aux. Check Allows the user to select the fault-triggering event. Logic High – fault occurs on “open” unconnected state of auxiliary input line. Logic Low – fault occurs on “close” shorted to ground state of the auxiliary input line.
11.2 Configuring SSPA and PC to work with terminal mode protocol Each unit is shipped from the factory with “String” type of protocol selected as the default serial protocol. To switch the SSPA to work with Terminal mode protocol, the user must use the supplied M&C utility software and establish a connection with the SSPA (see Compact Outdoor Amplifier Quick Start Guide for details). 1. Establish connection with the SSPA by using Paradise Datacom Quick Start Cable and PC’s RS232 serial port. 2.
11.2.1 Remote Terminal Set-up The following procedure will guide the user through the setup of a remote terminal, using Windows 95/98 HyperTerminal software. Prior to configuring the PC configurations, the SSPA must be connected to the PC COM port and configured to use TMSP at 9600 Baud. 1. Start the Windows HyperTerminal Program (default Windows location at Programs Accessories HyperTerminal). 2.
4. On the next dialog window, choose the following settings: Bits per Second – 9600; Data bits – 8; Parity – None; Stop bits – 1; Flow control – none. Then click “OK.” See Figure 11-7. Figure 11-7: COM Properties window 5. The SSPA will not normally echo back characters typed by the user in the Terminal window. For added security and convenience, it is recommended to turn on Local Echo on HyperTerminal itself.
Your PC is now configured to communicate with the Compact Outdoor SSPA in Terminal mode. To establish a session with SSPA, type UNIT#170. Note: On a RS485 network, avoid using the global address (170). Instead, use the unique SSPA address. An example of the terminal mode session shown on Figure 11-9.
Appendix A: Quick Start Cable Figure A-1. Quick Start Cable Schematic “Quick-Start” Cable Connects between Compact Outdoor Amplifier M&C port ,J4, and Computer COM Port.
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Appendix B: Alternate System Configurations Mixing New Generation Compact Outdoor Amplifiers with Units Manufactured Prior to 2003 Configuring redundant systems with older model Compact Outdoor amplifiers with new generation models will require a different switch cable configuration than those shown in Section 7. Older generation amplifiers are generally those manufactured prior to year 2003. This switch cable can be ordered from the factory as part number 201608.
Alternate Redundant System Configurations Mixing Compact Outdoor SSPA with other manufacturer Amplifier Configuring redundant systems with other manufacturers amplifiers can be achieved by using an external controller such as the Paradise Datacom RCP2-1100. The external controller is required because the internal controller in the Compact Outdoor Amplifier is specifically designed to operate with other Compact Outdoor SSPAs.
Appendix C: Baud Select Lines on J4 Baud Select Lines on J4, Monitor & Control Connector Pins j and e of M&C connector J4 allow the user to have some control over the serial interface, bypassing EEPROM settings for Protocol, Baud Rate or Network Address. This feature becomes important if the user accidentally selects the wrong protocol or baud rate of the SSPA and wants to revert the unit to a known state. These pins have internal pull-ups and if left disconnected will remain in logic high state.
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Appendix D: VSAT BUC Protocol Support VSAT BUC protocol support In order to provide seamless integration with the legacy SierraCom VSAT BUC product line, compatible serial protocol was introduced to the CO SSPA protocol selection. This protocol is supported in I/O board firmware version 3.50 or better. In order to enable SierraCom protocol, connect to a SSPA unit over Standard String Protocol. Select the relevant option from System Settings Table 10-6 (data address 16). Cycle SSPA power.
Table D-2: Packet Structure Byte Name Description Value 1 Address Address of SSPA 0x01 to 0x0f 2 Command Request Status Transmit on/off Change Address Set Carrier Frequency † Gain Adjust 0x01 0x02 0x03 0x04 0xFF 3 Data Byte 1 Not used if command = 0x01 ‡ Tx control if command = 0x02 New address if command = 0x03 Carrier Frequency if command = 0x04 Gain Adjust 0xAA 0 = Off, 1 = On 0x01 to 0x0f MSbyte 0x01 4 Data Byte 2 5 Data Byte 3 Not used if command = 0x01 ‡ Not used if command = 0x02
Table D-4: Power Class Values† Value Power 0x1 2 watt 0x2 4 watt 0x3 5 watt 0x4 8 watt 0x5 10 watt 0x6 16 watt 0x7 20 watt 0x8 25 watt 0x9 40 watt 0xA 55/60 watt 0xB 30 watt 0xC 125 watt 0xD 80 watt 0xE 100 watt 0xF 170 watt † Closest value of power class is reported; actual power level of the unit may differ.
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Appendix E: Documentation The following pages comprise the specification sheets for the Paradise Datacom Compact Outdoor Solid State Power Amplifiers: S-Band, C-Band, X-Band or Ku-Band: Drawing Number 205485 Ka-Band: Drawing Number 207151 See the Paradise Datacom web site at http://www.paradisedata.com for the latest revision of these documents. Also included are the Block Diagram, Schematic and Outline Drawing for the specific model ordered.
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