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XPA200-7984-I-OPT1, X-Band SSPA

Maintenance and Troubleshooting

XPA200-7984-I-OPT1, Rev.2

6-1

200 Watt

X-Band

Solid State

High Power

Amplifier

RF INPUT SAMPLE

RF OUTPUT SAMPLE

FRONT PANEL

REAR PANEL

SSPA RF INPUT

AC POWER INPUT

CUSTOMER DISCRETE

SSPA RF OUTPUT

RS-485/-232C COMM LINK

COMBINER INTERFACE

SECTION 6

Maintenance and Troubleshooting

6.1 General

This section is intended to provide procedures to assist

operator and maintenance personnel in the checkout, maintenance

and troubleshooting of the SSPA. COMTECH recommends that spare

replacement SSPA’s be used to replace SSPA’S removed from the

system for maintenance. Troubleshooting procedures are provided

for fault isolation to the module level.

The input and output signals, the interconnecting cables and

The location of the modules are as shown in Figure 6-1.

Figure 6-1. SSPA Signal and Interconnecting Cable Diagram

Summary of Contents for XPA-200

Page 1: ...ment supersedes all previously published information regarding this product Product specifications are subject to change without prior notice XPA 200 Solid State High Power Amplifier Installation and Operation Manual Part Number MN XPA200IN IOM Revision 2 ...

Page 3: ...ncorporated into the next revision Change Specifics 1 Section 3 3 2 1 should be amended to include amendments or changes in bold EXT mute on from external J4 control see section 1 ON muted by M C control or via remote control 2 Section 5 8 2 2 should be amended to include amendments or changes in bold Confirmation DEV MUT_xxx cr lf Note On Status queries the MUT command may also return EXT mute on...

Page 4: ...bove 90 degrees C 5 Section 5 8 3 8 should be amended to include amendments or changes in bold Confirmation DEV PACRCS_aabcde cr lf where aa of 0 25 dB steps in HEX above 0dB 0to120 b 1 if Amplifier ON 0 if OFF c 1 if Tx ON 0 if OFF 2 if external mute command 3 if external inhibit command d 1 if unit ONLINE 0 if OFFLINE e 1 if Auto Recovery enabled else 0 6 Section 5 8 3 9 should be amended to inc...

Page 5: ...mmary fault and will cause the unit to mute itself and switchover to the back up unit However the 10V supply to the FET transistors will remain on until the unit reaches the thermal shutdown temperature of 90 degrees C or above For protection reasons the unit will shutdown the 10V supply to the power transistors at temperatures at or above 90 degrees C ...

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Page 7: ...ct the COMTECH Customer Service Representative 1 480 333 4357 for information updates that apply to this product LIMITATIONS of WARRANTY The foregoing warranty shall not apply to defects resulting from improper installation or maintenance abuse unauthorized modification or operation outside of the environmental specifications for this product or for damages that occur as a result of improper repac...

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Page 9: ...intenance of the XPA200 7984 I X Band SSPA Organization of Manual This manual includes the following chapters Section 1 describes the purpose function description options and systems specifications of this product Section 2 describes the unpacking installation and and brief operating instructions for use with the Mitec 2723B Variable Phase Combiner and Redundancy Switching System Section 3 describ...

Page 10: ... please contact the COMTECH Customer Service Representative 1 480 333 4357 Safety Notice This equipment has been designed to minimize exposure of personnel to hazards The operators and technicians must NEVER TURN ON THE UNIT WITHOUT PROPER RF TERMINATIONS Know how to work around with and on high voltage and high RF power level equipment Exercise every precaution to ensure personnel safety Exercise...

Page 11: ...rwise made unusable as a result of an accident or unreasonable use neglect improper or unauthorized service repairs or modifications or other causes not arising out of defects in design material or workmanship To return a COMTECH product for repair or replacement 1 Request a Return Material Authorization RMA number from the COMTECH Customer Service Representative 1 480 333 4357 FAX 1 480 333 2500 ...

Page 12: ...r COMTECH EF Data Corp 2114 W 7th Street Tempe Arizona 85281 U S A Attention Customer Service Department RMA Number For more information regarding the COMTECH warranty policy please refer to the policy page located on the back of the title page Product Application Upgrading or Training Information To obtain product application upgrade or training information Please contact theCustomer Service Repr...

Page 13: ...rs 1 5 1 9 Front Panel Display 1 7 1 10 Front Panel Test Point Samples 1 7 1 11 Rear Panel Connections 1 7 1 12 Prime Power Switch 1 11 2 Installation Operation with Mitec 2723B 2 1 Unpacking and Inspection 2 1 2 2 Rack Mount Installation 2 1 2 3 Combined Redundant System Operation 2 4 and Setup 3 System Operation 3 1 3 1 General 3 1 3 2 Switching Power On 3 1 3 3 Operation 3 3 3 3 1 SSPA Commands...

Page 14: ... 4 5 4 1 Transmission Mode 5 4 5 4 2 Baud Rate 5 4 5 4 3 Format 5 4 5 4 4 Character Set 5 4 5 4 5 Response Timeout 5 5 5 4 6 Bus Inactivity Requirement 5 5 5 5 Access Methods 5 5 5 6 Addresses 5 5 5 6 1 Physical Address 5 5 5 7 Message Structure 5 6 5 7 1 Start Character 5 6 5 7 2 Device Address 5 6 5 7 3 Command 5 6 5 7 4 Confirmation Response 5 7 5 7 5 Error Response 5 7 5 7 6 End of Message 5 7...

Page 15: ... 1 6 2 Maintenance Testing 6 2 6 2 1 Test Point Samples 6 2 6 3 Troubleshooting 6 2 6 3 1 SSPA Faults 6 2 6 3 1 2 DC Power Supply Module 6 3 6 3 1 3 Temperature Fault 6 4 6 3 1 4 Monitor Control Board 6 4 6 4 Returning the SSPA to COMTECH 6 5 6 4 1 Return Material Authorization RMA 6 5 6 4 2 Shipment to COMTECH 6 5 6 5 Product Application Upgrading or Training Information 6 6 7 Addendum 7 1 7 1 Ge...

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Page 17: ... output is 53 0 dBm minimum at 1 dB compression A functional block diagram is shown in Figure 1 1 The SSPA is designed to be hard mounted in a standard 19 inch rack or cabinet or to be rack mounted using COMTECH slide mechanisms provided with the SSPA to allow it to be serviced without its removal from the rack Two internally mounted exhaust fans are mounted on the chassis for cooling An AC power ...

Page 18: ...OPT1 REV 3 1 2 POWER AMPLIFIER AS 0558 RF INPUT RF OUTPUT MONITOR CONTROL AS 0200 5V 5V AUX PS SWITCH CONTROL AS 0206 12V 12V CONTROL MONITOR PS 2 28Vdc PS 1 10Vdc 10Vdc 5Vdc Interlock FAN2 FAN1 Prime Power Input PS 2 10Vdc Figure 1 1 FUNCTIONAL BLOCK DIAGRAM ...

Page 19: ...nter Freq Summary Fault Form C 1 00dB full band LED Power Green Fault Red Stored Fault Red Third Order Intermod Tx ON Yellow Intercept 60 5dBm Min 62 0dBm Typ Online Yellow Products 30dBc typ 25dBc max Remote Yellow 3 dB total back off two tones ªf 1MHz Mechanical AM to PM Conversion Height 12 25 inches 2 0 degrees typ 3 0 max rated output Width 19 inches Depth 24 inches Weight 100 lbs Group Delay...

Page 20: ...nly 0 to 40C Operation above 40C not recommended Humidity 10 to 95 noncondensing operation 1 7 Front Panel Controls The front panel contains a User Interface Key Pad which is used by a local operator to input commands to the SSPA The key pad is used to select the configuration for operating and monitoring the status of the SSPA In conjunction with the front panel two line twenty four character LCD...

Page 21: ...xecuted using the Enter key After pressing the Clear key the display will return to the previous selection Right and Left Arrow Keys These keys are used to select or change an operating mode within a function or to input or change the configuration input data numbers Up and Down Arrow Key These keys are used to move to the next operation mode or to move the cursor to select a specific parameter or...

Page 22: ... Status C Power Green Indicates that power is applied to the SSPA when the LED light is on C Tx ON Yellow Indicates that the transmit function of the SSPA is on when the LED light is on The indicator light reflects the actual condition of the transmit function C On Line Yellow Indicates that the SSPA is operating on line to transmit data C Remote Yellow Indicates that the SSPA is being operated in...

Page 23: ... Point Samples Two test point connections are located on the front panel for monitoring the RF input and the RF output A type N female connector is provided for the RF sample test points 1 11 Rear Panel Connections The following is a list of the connectors on the rear panel Connector J1 SSPA RF Input RF in Connector J2 SSPA RF Output RF output Connector J3 AC Prime Power Input AC in Connector J4 C...

Page 24: ...ble 1 1 J6 COM1 connector Pin Out Pin RS 232C RS 485 4 Wire RS 485 2 Wire 1 no connect GND Ground GND Ground 2 TD Transmit Data no connect no connect 3 RD Receive Data no connect no connect 4 no connect TX Signal RX TX Signal 5 GND Ground TX Signal Complement RX TX Signal Complement 6 DSR Unit Ready always high no connect no connect 7 RTS Request to Send Looped to CTS no connect no connect 8 CTS C...

Page 25: ...ing connector is a MS3116F14 19P Table 1 2 J4 Customer Discrete Control Connector Pin Out Pin Signal Name Description A External Mute Cmd External Mute Command TTL input high mutes the unit B External Mute Common External Mute Common G Local Online Common Local Online Status Common H Local Online NO Tied to pin G when Online else open N Summary Fault Common Summary Fault Status Common P Summary fa...

Page 26: ...cifications is contained in Table 1 3 The mating connector is a MS3116F14 19P Table 1 3 J5 Combiner Interface Connector Pin Out Pin Description Pin Description A Inhibit Command L not used B VPC A B Antenna M not used C not used N not used D not used P not used E VPC Output Common R not used F VPC A B Antenna S Local SumFlt Common G not used T Local SumFlt NO H Inhibit Common U not used J not used...

Page 27: ... pin A is of the first make last break type The pin out specifications are contained in Table 1 4 A mating connector of type CA3106E20 19SB is included for the customer Table 1 4 J3 AC Prime Power Input Connector Pin Description A Ground B Neutral C Line 1 12 Prime Power Switch The on off prime power switch is located on the rear of the chassis adjacent to the prime power input connector The circu...

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Page 29: ...packing materials should be retained for possible re shipment Check to determine that all parts materials and documentation have been shipped with the SSPA The SSPA should be inspected for possible damage and then tested for proper operation If the shipment is incomplete or there is mechanical damage or the SSPA does not operate properly notify the COMTECH Customer Service representative immediate...

Page 30: ...ts P1 P2 P3 and to each J5 of SSPA A and SSPA B as indicated by the labels on the cable Note that this cable is setup for the bottom SSPA be SSPA A Attach the supplied waveguide termination to the load port of the Mitec 2723B such that the termination resides above the unit See outline drawing Attach user supplied coaxial cables and waveguide between the Mitec 2723B and each XPA200 Refer to Figure...

Page 31: ...cess Port P4 9 pin Pin 2 Rd Pin 3 Pin 3 Td Pin 4 Pin 5 Gnd Pin 5 Table 2 1 Typical RS 232 Connection to Mitec P4 2 Physical remote cabling information for each Comtech SSPA is described in section 5 3 of this manual It is recommended to set SSPA A to address 001 and SSPA B to address 002 These and other communication parameters can be set via the front panel of each SSPA as described in section 3 ...

Page 32: ...ld not cause any concern because the load is rated for 1000W convection cooling and the maximum power possible into the load is approximately 525W VPC Function VPC Pos Applied Power Power Observed at Load less I L Power Observed at Antenna less I L A to Antenna 1 A and B Full Power of B Full Power of A A B to Antenna 2 A only Half Power of A Half Power of A B only Half Power of B Half Power of B A...

Page 33: ... to antenna A to load 3 Connect a power meter to the Mitec calibrated load measuring port see 2723B test data for exact calibration data Adjust output power of SSPA A to desired level by adjusting input RF power or by using the SSPA A attenuation setting B To set the output power of SSPA B 1 Mute SSPA A via remote or front panel controls To prevent unwanted power from SSPA A going to antenna 2 Set...

Page 34: ...which may keep unwanted signal from the actual antenna 1 Connect a power meter to the Mitec calibrated load measuring port see 2723B test data for exact calibration data 2 Select VPC position 1 A to Antenna B to Load Adjust SSPA B input signal level and attenuation to achieve desired output power level from SSPA B For example 40 0 dBm 3 Select VPC position 3 B to Antenna A to Load Adjust SSPA A in...

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Page 37: ...me Power Switch to the on position check to ensure that the installation is complete and verify that the SSPA is connected to the proper prime power source RF input and RF output Switch the ON OFF Prime Power Switch on the rear panel to ON Verify that the cooling fans are operating and that the POWER ON LED STATUS indicator light is on After the prime power is switched on the STATUS indicators sho...

Page 38: ...ow key Selects the operating menu and data values Down Arrow LCD Display Displays commands and data entered into the key pad STATUS Indicator Green Prime power is applied when the light is on POWER ON STATUS Indicator yellow Transmit function operating when the light is on TRANSMIT ON STATUS Indicator yellow In Remote Control Mode when the light is on REMOTE STATUS Indicator yellow Operating on li...

Page 39: ...olled by operator input commands initiated through the six button key pad on the front panel The key pad is the local operator s interface to control configure and monitor the status of the SSPA Operator inputs and commands entered into the key pad are displayed by the front panel twenty four character two line LCD display See Section 5 0 for Remote Control Operation There are five operating comma...

Page 40: ...LEGEND KEY PAD RIGHT LEFT DOWN UP ENTER CLR DISPLAY See Para 3 3 2 DOWN ENTER SELECT CONFIGURATION MENU UP ATTENUATION 10 00 dB AMPLIFIER ON MUTE OFF See Para 3 3 2 1 ENTRY MODE REMOTE See Para 3 3 2 2 FAULT RECOVERY MANUAL See Para 3 3 2 3 Figure 3 2 Configuration Menu Commands ...

Page 41: ... 3 DOWN UP 12V 12 2 12V 12 0 VCC 4 9 5V 4 9 28 VDC PS 27 9 10VPS1 10 3 10VPS2 10 3 AMPLIFIER TEMP 44C FORWARD RF PWR 53 0 DBM REVERSE RF PWR 26 2 DBM RF FET Q1 XXXmA RF FET Q2 XXXmA RF FET Q5 X X AMPS RF FET Q6 X X AMPS RF FET Q3 X X AMPS RF FET Q4 X X AMPS RF FET Q18 X X AMPS RF FET Q19 X X AMPS RF FET QX X X AMPS RF FET QX X X AMPS Figure 3 3 Monitor Status Menu Commands ...

Page 42: ... CLR DISPLAY ENTER See Para 3 3 4 DOWN UP SELECT CURRENT FAULTS MENU See Para 3 3 4 1 28 VDC PS OK 10VPS1 OK 10VPS2 OK POWER FAULTS 12V OK 12V OK VCC OK 5V OK See Para 3 3 4 1 AMPLIFIER TEMP OK FAN 1 OK FAN 2 OK See Para 3 3 4 3 See Para 3 3 4 2 Para 3 3 4 3 M C PROCESSORS OK Figure 3 4 Currents Faults Menu Commands ...

Page 43: ...L E C T S T O R E D F A U L T S M E N U E N T E R S e e P a r a 3 3 5 D O W N U P S T F A U L T X X 1 9 2 0 0 5 O K F I N E L O C K 0 2 1 5 9 5 S e e P a r a 3 3 5 3 C L E A R A L L S T O R E D F A U L T S N O S e e P a r a 3 3 5 2 T O T A L F A U L T S S T O R E D X X L A S T 1 9 2 0 0 5 0 2 1 5 9 5 S e e P a r a 3 3 5 1 Figure 3 5 Stored Faults Menu Command ...

Page 44: ...ara 3 3 6 DOWN UP SELECT UTILITY FUNCTIONS MENU SERIAL MODE RS232C ADDR XXX BAUD YYYY P ZZ TIME 10 20 05AM DATE 09 15 94 SERIAL PORT DATA FORMAT 7 DATA 2 STOP PARITY DISPLAY CONTRAST XX DISPLAY BRIGHTNESS XX FORWARD RF POWER MONITOR OFFSET 0 0dBm REVERSE RF POWER MONITOR OFFSET 0 0dBm LAMP TEST OFF Figure 3 6 Utility Functions Menu Commands ...

Page 45: ...Menu press a DOWN or UP arrow button on the key pad The SSPA will step to the next Command Function Menu each time a DOWN or UP arrow button is pressed The current Command Function Menu will be displayed on the LCD display The Command Function Menus are shown in Figure 3 1 To select a specific Command Function Menu press the ENT key pad button If a function is selected in error press the clear CLR...

Page 46: ...rement or decrement the value of a digit A specific new parameter or new value is selected by pressing the ENT button If a parameter or value is selected in error press the clear CLR button which will return the SSPA to the original parameter or value to allow another selection Each time the clear CLR button is pressed the SSPA will return to the menu level prior to the last ENT command 3 3 2 Conf...

Page 47: ...d displays the status of All SSPA power supplies SSPA internal temperature RF output power level RF FET currents Q1 through Q19 3 3 4 Current Faults Menu Displays the status of the current fault conditions The LCD display will indicate FT when a fault condition exists The display will indicate OK when a fault has not occurred 3 3 4 1 Power Faults Displays the DC voltage power supply faults The DC ...

Page 48: ...ry as they occur The stored faults remain in memory until a clear command is entered 3 3 5 1 Total Stored Faults Displayed the total number of faults stored The most recent fault stored is displayed on the LCD display 3 3 5 2 Clear All Stored Faults Input command to clear all faults The command is YES or NO which is displayed on the LCD display 3 3 5 3 Display Stored Fault The local operator can s...

Page 49: ...m DISPLAY CONTRAST The default is 15 with values from zero 0 to thirty 30 DISPLAY BRIGHTNESS The default is 15 with values from zero 0 to thirty 30 FORWARD RF POWER MONITOR OFFSET This function allows the operator to calibrate fine tune the RF Power Monitor for a specific carrier frequency The RF Power Monitor is calibrated in the factory at the SSPA center frequency The operator can adjust offset...

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Page 51: ... GENERAL This option or application uses a Mitec variable phase combiner for redundany use which is totally different than the standard Comtech Communications redundancy operating features Section 2 contains the specialized redundancy system features for this option Also see the Mitec 2723B manual for more detailed information ...

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Page 53: ... as well as all monitor and status information is available via the remote port 5 2 ELECTRICAL INTERFACE The remote control interface supports either 2 wire RS 485 4 wire RS 485 or RS 232C The default port is 2 wire RS 485 Selection of the interface type is made via front panel menu selection 5 2 1 RS 232C Levels pulse shapes and impedances conform to EIA standards for asynchronous operation 5 2 2...

Page 54: ...interface terminals that require this handshaking Most of today s PC s are provided with RS 232C serial ports that do not require the hardware handshaking In these instances the interface can be reduced to three 3 signals TD RD and GND 5 3 2 2 RS 485 Both 2 wire and 4 wire applications are supported The 4 wire interface provides independent signal wires for each of the receive RX signal and its co...

Page 55: ... FUNCTION 1 GND Ground 4 RX TX Signal Loop In 5 RX TX Signal Complement Loop In 8 RX TX Signal Loop Out 9 RX TX Signal Complement Loop Out 5 3 2 2 2 RS 485 4 wire The pinout for the 2 wire interface is provided below Note that all five 5 signals are required PIN NAME FUNCTION 1 GND Ground 4 TX Transmit Signal 5 TX Transmit Signal Complement 8 RX Receive Signal 9 RX Receive Signal Complement 5 3 3 ...

Page 56: ...is method requires the external system monitor and control unit to initiate all communications by command and the SSPA to respond with either confirmation or an error message The confirmation may contain status information 5 4 2 Baud Rate The default serial port Baud Rate is 9600 Baud rates of 4800 2400 and 1200 and 300 are also supported 5 4 3 Format The following parameters are the default chara...

Page 57: ...In this control network the SSPA is paralleled on a common RS 485 cable and has a unique physical address Only one RS 485 port is required on the system s monitor and control computer 5 5 2 RS 232C For RS 232C control a direct RS 232C cable connection is made to each SSPA to be accessed If an external Monitor and Control Computer is used one RS 232 port per SSPA is required 5 6 ADDRESSES All SSPAs...

Page 58: ...amples Example 10 direct addressing 5 7 3 Command A Command is a variable length character string beginning with a and containing either an instruction or an instruction and data for a SSPA to act upon If data is passed by command it is appended to the instruction by an underscore _ If data is retrieved by command underscore follows the instruction flagging the SSPA to supply data in a response In...

Page 59: ...bols are followed by a text string explaining the error for the convenience of a human operator For this document ER is used for the generic case examples response Example DEV COM ER Error Message cr lf 5 7 6 End Of Message End of message strings were devised in such a way that an orderly screen presentation would result when SSPAs are controlled by simple ASCII terminals 5 7 6 1 Command Ending Th...

Page 60: ... Date DEV DAT_mm dd yy cr mm Month Confirmation DEV DAT_mm dd yy cr lf dd Day yy Year Retrieve Date DEV DAT_ cr Confirmation DEV DAT_mm dd yy cr lf 5 8 1 3 Physical Address The default Physical Address from is 1 Set Physical Address DEV SPA_xxx cr xxx 1 to 255 Confirmation DEV SPA_xxx cr lf Retrieve Phys Addr DEV SPA_ cr Confirmation DEV SPA_xxx cr lf 5 8 1 4 Baud Rate The default baud rate is 960...

Page 61: ...ontrast The default is 15 Set Contrast DEV CON_xx cr xx 0 to 30 Confirmation DEV CON_xx cr lf Retrieve Contrast DEV CON_ cr Confirmation DEV CON_xx cr lf 5 8 1 7 LCD Brightness The default is 15 Set Brightness DEV LCD_xx cr xx 0 to 30 Confirmation DEV LCD_xx cr lf Retrieve Brightness DEV LCD_ cr Confirmation DEV LCD_xx cr lf 5 8 1 8 Lamp Test The default is off Test Lamps DEV LAM_xxx cr xxx ON or ...

Page 62: ...nation or other aspects of the application that may be significant to operations The message length corresponds to capability of the LCD and is 48 characters in total The second line begins at character 25 therefore blanks must be used after line 1 information in order to space to line 2 A carriage return ends the command Trailing blanks will be generated to fill the LCD field The AID display will...

Page 63: ... output mute control via the remote interface using this command The default is on Mute Output DEV MUT_xxx cr xxx ON or OFF Confirmation DEV MUT_xxx cr lf Retrieve Mute Status DEV MUT_ cr Confirmation DEV MUT_xxx cr lf 5 8 2 3 Attenuator The default is 10 dB Set Attenuator DEV ATT_ yy yy cr Confirmation DEV ATT_yy yy cr lf Retrieve Attenuator DEV ATT_ cr Confirmation DEV ATT_ yy yy cr lf Note yy y...

Page 64: ...Configuration Status DEV RCS_ cr Confirmation DEV RCS_ cr ATT_yy yy cr Attenuator AMP_nnn cr Amplifier ON OFF TX_nnn cr Transmit ON OFF ONL_nnn cr Online ON OFF AFR_nnn cr Auto Flt Recovery ON OFF 5 8 3 2 Maintenance Status Maintenance Status DEV RMS_ cr Confirmation DEV RMS_ cr V 28_xx x cr 28 VDC Supply V 12_xx x cr 12 VDC Supply V 12_xx x cr 12 VDC Supply V 5_x x cr 5 VDC Supply V 5_x x cr 5 VD...

Page 65: ...r FET9 current in amps FET10_x x cr FET10 current in amps FET11_x x cr FET11 current in amps FET12_x x cr FET12 current in amps FET13_x x cr FET13 current in amps FET14_x x cr FET14 current in amps FET15_x x cr FET15 current in amps FET16_x x cr FET16 current in amps FET17_x x cr FET17 current in amps FET18_x x cr FET18 current in amps FET19_x x cr lf FET19 current in amps 5 8 3 4 Utility Status U...

Page 66: ...to Fault FT if any of the items in paragraph 5 8 4 5 are faulted Summary Alarm DEV SAS_ cr xx OK or FT Confirmation DEV SAS_xx cr lf 5 8 3 7 Terminal Status Change The TSC_ command can be used to determine if the status of the terminal has changed since it was last polled If any of the parameters listed in the RCS or RUS commands have changed as a result of user operations or if any new fault cond...

Page 67: ...ply scaled 100mV per count in Hex cc 12 supply scaled 100mV per count in Hex dd 5 supply scaled 100mV per count in Hex ee 5 supply scaled 100mV per count in Hex ff 10 supply 1 scaled 100mV per count in Hex gg 10 supply 2 scaled 100mV per count in Hex hhh Signed temperature in degrees C 10 to 95 iii RF forward pwr 1 dBm steps above 32 0 dBm in Hex jjj RF reverse pwr 1 dBm steps above 25 0 dBm in He...

Page 68: ...unt ss FET19 current in Hex scaled 100mA per count 5 8 3 11 Packed Utility Status Packed Utility Status DEV PACRUS_ cr Confirmation DEV PACRUS_abbcdeeff cr lf where a com1 mode 0 RS 232 1 RS 485 2 2 RS 485 4 bb Address in hex 01 to FF c 0 if Baud Rate 9600 1 if Baud rate 4800 2 if Baud rate 2400 3 if Baud rate 1200 4 if Baud rate 300 d 0 if Parity Even 1 if Parity Odd ee LCD Contrast 0 to 30 ff LC...

Page 69: ...eve Total Alarms DEV TSA_ cr Confirmation DEV TSA_TOTAL nnn cr LAST hh mm ss mm dd yy cr lf 5 8 4 2 Clear All Stored Alarms Clear Alarms DEV CAA_YES cr Confirmation DEV CAA_CLEARED cr lf 5 8 4 3 List All Alarms List All Alarms DEV LAA_ cr Confirmation DEV LAA_ cr xxx yyyyyyyyyyy hh mm ss mm dd yy cr xxx yyyyyyyyyyy hh mm ss mm dd yy cr xxx yyyyyyyyyyy hh mm ss mm dd yy cr xxx yyyyyyyyyyy hh mm ss ...

Page 70: ... Error Responses may be generated by configuration commands DEV COM LO DEVICE IN LOCAL MODE cr lf 5 9 3 Time Outs A time out should be assumed if there is no response in 1 0 seconds The station monitor and control computer should try at least three times Possible sources of timeouts are as follows 1 Incorrect Device Address 2 Faulty Cable 3 Faulty Connector 4 I O fault on remote interface 5 I O fa...

Page 71: ...xx cr 5 8 2 2 Set Attenuation DEV ATT_xx xx cr 5 8 2 3 Select Auto Fault Recovery DEV AFR_xxx cr 5 8 2 4 Status Commands Paragraph Retrieve Configuration Status DEV RCS_ cr 5 8 3 1 Retrieve Maintenance DEV RMS_ cr 5 8 3 2 Retrieve FET Status DEV RFS_ cr 5 8 3 3 Retrieve Utility Status DEV RUS_ cr 5 8 3 4 Retrieve Alarm Status DEV RAS_ cr 5 8 3 5 Summary Alarm Status DEV SAS_ cr 5 8 3 6 Terminal St...

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Page 73: ...Troubleshooting 6 1 General This section is intended to provide procedures to assist operator and maintenance personnel in the checkout maintenance and troubleshooting of the SSPA COMTECH recommends that spare replacement SSPA s be used to replace SSPA S removed from the system for maintenance Troubleshooting procedures are provided for fault isolation to the module level The input and output sign...

Page 74: ...ese sample ports is located on the front panel 6 3 Troubleshooting SSPA operating problems can be identified by first observing the status indicators on the front panel When a fault condition is indicated the specific fault or faults can be identified in the Current Faults Function Menu Figure 3 4 which is accessed through the local operation key pad and displayed on the LCD display located on the...

Page 75: ... a voltage level exceeding 10 of the power supply voltage Check the output of the DC Power Supply Module Check all connections to make sure they are secure If the voltage exceeds 10 or the fault still exists return the SSPA to COMTECH for repair Power Supply 12 VDC A fault FT indicates a voltage level exceeding 10 of the power supply voltage Check the output of the DC Power Supply Module Check all...

Page 76: ...check all connections If the fault still exists remove the SSPA and return it to COMTECH for repair 6 3 1 3 Temperature Fault SSPA OVER TEMPERATURE FAULT A fault FT indicates that the SSPA is over temperature Make sure adequate ventilation is supplied to the unit and that the airflow path is not obstructed See installation instructions Sect 2 Also make sure the ambient air is within the 0 50 degre...

Page 77: ...ECH for repair See Section 7 for additional troubleshooting help 6 4 Returning the SSPA to COMTECH 6 4 1 Return Material Authorization RMA To return an in warranty or out of warranty SSPA to COMTECH for repair or replacement 1 Request a Return Material Authorization RMA number from the COMTECH Customer Service Representative 1 480 333 4357 2 Provide the Customer Service Representative with the fol...

Page 78: ...shipping damage Ship the SSPA prepaid to COMTECH Provide the following address on the shipping label with the RMA number clearly marked on the label and the shipping container COMTECH EF Data Corp 2114 W 7th Street Tempe Arizona 85281 U S A Attention Customer Service Department RMA Number 6 5 Product Application Upgrading or Training Information To obtain product application upgrade or training in...

Page 79: ...AUSES SOLUTIONS Unit does not turn on no display no front panel lights no fans Power cord not plugged in Faulty wiring to 28V power supply 28V power supply fault Check power cord connections With input power cord removed check wiring and connections to 28V power supply Check output of 28Vdc power supply Either one or both fans do no turn on Faulty wiring bad Note At power up the fans are sequenced...

Page 80: ... Replace Fan if faulty or return to factory for repair or replacement Display not turning on missing text incorrect backlighting etc Firmware not properly seated Faulty wiring bad connections Failed display failed display control card Failed circuitry on AS 0200 or AS 0206 Ensure U11 and U12 on AS 0200 are properly seated Ensure good cable connections from M C cards AS 0200 and AS 0206 to display ...

Page 81: ...d Use the MONITOR menu to check the internal level of PS1 and PS2 The levels should be near 10V If not correct use a voltmeter to measure the voltage where the 8 wires enter the amplifier unit WITH UNIT OFF tighten connections if necessary Check the 25 pin ribbon cable connections at the amplifier module and at AS 0200 This can usually be determined by using the MONITOR menu to check the DC curren...

Page 82: ...ut off the unit i e turn off the 10V supplies if the heatsink temperature becomes excessive This prevents the transistors from overheating and destruction After cooling down below the trip point the unit will automatically restart Do not exceed 50C ambient input air temperature Recommend 40C maximum Remove obstructions to ensure adequate air flow and proper amplifier cooling Check fan operation as...

Page 83: ...aulty Power Supply Check cable and connection from both PS1 and PS2 to amplifier module On outside of module measure voltage Expected voltage 10 5Vdc Use MONITOR menus to check transistor currents Record excessive values and return entire unit to manufacturer for repair Return failed power supply for repair Replace with new power supply Faulty Improper Redundancy Switch operation Faulty wiring or ...

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Page 87: ...XPA200 7984 I X Band SSPA Addendum XPA200 7984 I 0PT1 Rev 2 7 6 7 4 PARTS LIST next pages ...

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Page 95: ...x 103 1 609 x 103 1 609 1 mm 0 03937 1 kilometer 0 621 Temperature Conversions Units of Weight Unit Gram Ounce Avoirdupois Ounce Troy Pound Avoir Pound Troy Kilogram 1 gram 0 03527 0 03215 0 002205 0 002679 0 001 1 oz avoir 28 35 0 9115 0 0625 0 07595 0 02835 1 oz troy 31 10 1 097 0 06857 0 08333 0 03110 1 lb avoir 453 6 16 0 14 58 1 215 0 4536 1 lb Troy 373 2 13 17 12 0 0 8229 0 3732 1 kilogram 1...

Page 96: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX ...

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