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APPENDIX A

Dual Amplifier Redundant Configuration using N6143 Controller

If the requirement is for a two-amplifier redundant system, the following wiring can be used.
A personal computer can be used in place of the N6143 controller; commands and protocols
are detailed in this manual.

INV

INHIB

GND

EXT

INTLK

RED

FLT

O/P

RED

SW2

GND

SWITCH

SENSE

RED

SW1

RED

FLT

I/P

N.C.

SERIAL

BUS

SERIAL

BUS

HPA

‘A’

W/G

SWITCH

HPA

‘A’

‘B’

RS485

RTN

SCREEN

Rx+

TERMINATING

RESISTOR

FITTED

INTERNALLY

Tx+

9-WAY

‘D’

TYPE

‘PL1’

N6143

CONTR

OLLER

CON

NECTIONS

ADDRESS

SELECT

(31

)

(+15V)

(RED

SW2)

(RED

SW1)

LOAD

ANTENNA

HPA

‘B’

120R

NOTE

TERMINATING

RESISTORS

120R

1%,

CARBON

FILM

(SHOWN

USING

AST.75/24

TYPE

SWITCH)

120R

HBN63xx-1, Issue 8, Page 45

Содержание Stellar N6312C

Страница 1: ... e2v technologies limited This work must not be copied in whole or in part without the prior written permission of e2v technologies limited e2v technologies Waterhouse Lane Chelmsford Essex CM1 2QU UK Telephone 44 0 1245 493493 Fax 44 0 1245 492492 Internet www e2vtechnologies com Holding Company e2v holdings limited ...

Страница 2: ... from the mains supply The protective earth must be connected to the local system earth point must be capable of carrying 30 A and must conform to the regulations in the British Standard Codes of Practice BS7430 1991 Earthing or equivalent national regulations Mains Supply A mains supply disconnection device must be provided to isolate this amplifier from the mains supply source Either a socket ou...

Страница 3: ... the amplifier may occur if the RF input drive level or the input frequency are outside the limits given in the specification section 8 also summarised in section 3 2 Environmental Do not block or poke objects through the amplifier ventilation slots Do not spray aerosol cleaners directly on to the amplifier surfaces when cleaning Do not operate the amplifier on an unstable or unsafe surface Ensure...

Страница 4: ...ontrol interface socket Has the product been damaged Description of any operational fault or problem Return address 2 The Customer Service Team will issue you a Reference Number for the return 3 Complete a Product Service Report Form a copy can be found at the back of this manual noting in particular any unusual occurrences before or at the time of failure The form must be returned with the produc...

Страница 5: ...N OF THE AMPLIFIER 17 4 1 Applying The Mains Supply 17 4 2 Mains Supply Interruptions 17 4 3 Functions 17 4 4 Upconverter Operation 18 4 5 RF Sample Port 19 5 USER INTERFACES 20 5 1 Pin Identification 20 5 2 User Interface Features 21 6 RS 485 SERIAL BUS 27 6 1 General Description and Features 27 6 2 Protocol 32 6 3 Summary Of Command Messages 35 6 4 Examples Of Command And Response Messages 36 6 ...

Страница 6: ...or plug a control connector plug test results an air inlet cowl 6 32 UNC 2A x 1 2 inch waveguide screws 4 off 1 1 Range of Options The N63xx series of antenna mount amplifiers includes the following variants and options RF output power variants 120 W N6312 150 W N6315 and 180 W N6318 RF system options Product type numbers with a C suffix indicate that the unit is not fitted with an integrated soli...

Страница 7: ...external filters restrictions The frequency of cleaning will be dependent upon the installation and the environment The maintenance plan should be regularly reviewed and modified according to changes in the environment this can be seasonal e g airborne seed pods can cause regular blockages at certain times of the year The paint used on this product is designed to provide maximum reflection of sola...

Страница 8: ...d to prevent the amplifier from working loose under vibration and shock conditions that each installation may impose This is especially important for mobile applications The amplifier should be positioned so as to avoid the direct entry of rain water into the ventilation slots The amplifier is provided as standard with an air inlet cowl the normal orientation of which is pointing towards the base ...

Страница 9: ...emoved and the amplifier mounted closer to a flat surface see figure 2 Figure 2 Mounting distance from a flat surface no cowl When designing the installation a space of approximately 162 mm should be allowed for the disconnection and the bend radius of connection cables see figure 3 Figure 3 Interface connector and cable space allowance 106 mm MIN FLAT SURFACE 162 mm NOM HBN63xx 1 Issue 8 Page 9 ...

Страница 10: ...C 2A x 1 2 inch fully threaded as supplied If the amplifier is to be used in applications where it is exposed to rain or subjected to condensation all attempts should be made to prevent moisture ingress into the waveguide system It is recommended that all external waveguide joints are made using flanges fitted with O rings to prevent moisture ingress The amplifier is supplied with a plain waveguid...

Страница 11: ... to protect it in the event of an over temperature condition When the temperature of either thermal sensor exceeds preset levels the amplifier is automatically removed from the XMIT mode and placed into the STBY mode In the STBY mode the dissipation within the amplifier is greatly reduced and if the airflow is normal the amplifier will rapidly cool At this stage the installation cooling system sho...

Страница 12: ...nd radius is three times the ducting diameter Use the largest cross sectional area of ducting possible Use smooth walled ducting avoid corrugated ducting as it is more restrictive to airflow Transitions in ducting sizes should be smooth avoid step changes Do not use ducting adaptors that reduce the internal cross sectional area of the ducting If the installation dictates restrictive duct systems i...

Страница 13: ...he mains supply The amplifier can be operated from mains supplies of 99 to 265 V ac without any user adjustments Both the live and the neutral connections on the amplifier are fully rated and isolated for maximum line voltage full transient and noise immunity The amplifier is supplied with one mains plug but no cable Additional mains plugs are available from e2v technologies please contact your di...

Страница 14: ...connector must not be used as the mains supply disconnection device It is provided for convenience during installation and for ease of operation It is strongly recommended that the mains supply for the amplifier is fed via a double pole Residual Current Circuit Breaker RCCB The amplifier earth leakage current is 56 mA rms under nominal operating conditions In some circumstances on low voltage 3 ph...

Страница 15: ...be connected to a redundant switched system the control circuitry within the amplifiers can be used to implement a cost effective switch control solution The diagram on the following page shows the wiring connections required to implement a basic redundant switched system using the N6143 as the controlling device The N6143 control unit is connected to the serial interface of both amplifiers allowi...

Страница 16: ...similar resistors should be fitted between pin d Rx and pin e Rx7 also between pin b Tx and pin c Tx7 of the 41 pin amplifier control connector Termination of the serial communications bus is dependent upon the length and type of cable used and should follow normal transmission line practice Figure 6 Redundant switch configuration Notes 1 A wiring schematic diagram is given in the appendices for t...

Страница 17: ...a degradation of RF performance can be expected the amplifier will leave the XMIT mode When the mains supply returns the amplifier will automatically re enter the XMIT mode within 1 second All operating parameters will be as previously set Interrupt 45 seconds a degradation of RF performance can be expected the amplifier will leave the XMIT mode When the mains supply returns the amplifier will rem...

Страница 18: ...ut frequency range 950 to 1450 MHz corresponding to an RF output frequency range 14 0 to 14 5 GHz The UB suffix indicates an upconverter which operates over the RF input frequency range 950 to 1700 MHz corresponding to an RF output frequency range 13 75 to 14 5 GHz The block upconverter comprises four main elements as shown in the block diagram below this modularity gives design flexibility allowi...

Страница 19: ...plification For any upconverted amplifier if the L band input level is too high the mixer can be driven into saturation and intermodulation products may be experienced If the L band input level is too low 5720 dBm signal mixing will be poor possibly with intermittent signal locking 2 If the wider band 750 MHz UB variant is used with exciter chain equipment that is operating over a narrower band 50...

Страница 20: ...t indicator output D SUM FLT IND summary fault indicator output E spare F RF INHIB RF inhibit control input G INV RF INHIB inverted RF inhibit control input H OFF off control input J STBY standby control input K XMIT transmit control input L spare M FWD PW MON forward power monitor analogue output N GND ground P EXT INTLK external interlock input R ADD 0 address select 0 S ADD 1 address select 1 T...

Страница 21: ...the user interface connector when condition is true Example 1 amplifier in the OFF mode is indicated by pin A on the user interface connector closing to pin P Example 2 MUX 0 fault line is at binary 1 when pin X on the user interface connector closes to pin P OFF IND Indicates power is applied and that the unit is in the OFF mode WARMUP IND Indicates the TWT cathode three minute warm up timer is o...

Страница 22: ...the fault clears M Manual reset Units that exhibit faults with this reset code will be immediately removed from the XMIT mode and placed into the STBY mode The unit will remain in this mode for a period of 4 minutes before returning to the OFF mode unless the fault clears and the XMIT mode is reselected P Prime power reset Units that exhibit faults with this reset code will be immediately removed ...

Страница 23: ...nput is modified while the CTRL O R input is asserted See section 5 2 6 Minimum pull down time 1ms Maximum external switch on resistance 100 O OFF Selects the OFF mode directly from any of the other three operating modes WARMUP STBY or XMIT STBY Selects the STBY mode directly from the XMIT mode When selected from the OFF mode the unit is placed into the WARMUP mode for three minutes before automat...

Страница 24: ...1 If the external interlock is open in any other mode the fault condition is indicated but the amplifier mode is not changed If this feature is not required this pin should be linked to GND within the 41 pin user interface connector GND XMIT available Not Connected Inhibit XMIT 5 2 6 Control Inputs Type 3 The following control inputs set the modes of operation of the unit They are designed to be l...

Страница 25: ... supply is applied to the unit the three minute WARMUP mode is initiated and subsequently the unit automatically enters the STBY mode If the XMIT control input is linked to GND the unit then enters the XMIT mode Switching the XMIT control input between GND and open circuit will switch the unit between XMIT and STBY In addition as the mains supply is applied to the unit the internal digital electro...

Страница 26: ... that when asserted the RF output from the unit is switched to the antenna RED SW 2 should be connected so that when asserted the RF output from the unit is switched to the dummy load RS TX RS TX7 RS RX RS RX7 RS GND Provides connection for a RS 485 or RS 422 interface allowing connection as a slave to an asynchronous half duplex multi drop four wire bus This gives full remote control and monitori...

Страница 27: ... the standby mode full details of the operating modes are given in section 4 3 warm up If set indicates that the amplifier is operating in the warm up mode full details of the operating modes are given in section 4 3 off If set indicates that the amplifier is operating in the off mode full details of the operating modes are given in section 4 3 D2 output to antenna When using the redundant switch ...

Страница 28: ...V overload If set indicates that the amplifier has seen an internal HV overload fault trip The amplifier will revert to the standby mode and automatically attempt to reset three times for full reset details see section 5 2 1 PFC fault If set indicates that the amplifier has seen an internal power factor corrector fault trip The amplifier will revert to the off mode automatically prime power must b...

Страница 29: ...plifier will revert to the off mode automatically prime power must be removed and re applied to reset the trip 6 1 3 Redundancy Mode The following simple command messages that do not have an associated return of data allow control of the built in redundancy waveguide switching feature see section 3 6 for details of operation see section 6 4 1 for details of message format 6 1 3 1 Enable Manual Red...

Страница 30: ...RF Control The following simple command messages that do not have an associated return of data allow control of the RF by switching on off the power supply to the active RF input components if fitted see section 6 4 1 for details of message format 6 1 7 1 Enable RF Cancels the RF inhibit mode described below 6 1 7 2 Inhibit RF Inhibits the RF output from the unit by removing the power to the activ...

Страница 31: ...de 6 1 11 Forward Power A command message requesting data that results in a response showing the RF output power in watts If a request is sent in any mode other than transmit the response will show zero forward power see section 6 4 2 for details of command and response format 6 1 12 Interface Set Up To use the serial communications interface the amplifier must be placed into the remote mode of op...

Страница 32: ...another amplifier or on a multi drop system the bus termination is only required on one equipment typically the furthest from the master device A screened cable terminated to the backshell of the user interface connector should be used to prevent radio frequency interference from adversely affecting operation when connecting the screen of the cable to the backshell a full 3608 electrical connectio...

Страница 33: ...cular function for the HPA to perform The character can be in the range ASCII 0 to 5DEL4 Hex 30h to 7Fh data A parameter qualifying a command or data returned in response to a command Characters can be in the range ASCII 5SP4 to 5DEL4 Hex 20h to 7Fh checksum Bit by bit exclusive OR of all characters in message between and including the delimiters Characters can be in the range ASCII 5NUL4 to 5DEL4...

Страница 34: ...ommands will be acknowledged in the form shown below 5NAK4 address command data 5ETX4 checksum Not acknowledge with explanation for the command rejection Any command containing a parity framing overrun or checksum error will be ignored and consequently the master must re issue the command 6 2 7 Message Timing The maximum time between each character of a message must not exceed 10 ms and a pause of...

Страница 35: ...o local L 4C UC Inhibit RF N 4E UC Off O 4F UC Forward power P 50 US Remote enable R 52 UC Standby S 53 UC Reflected power see note T 54 US Attenuator U 55 US High power alarm V 56 US Low power alarm W 57 US Transmit X 58 UC Set address Y 59 UC p Set baud rate Z 5A UC p Type UC user command UC p user command with parameter US user status data request Note Input power and reflected power are not mo...

Страница 36: ... to antenna 7 37 This HPA to load 8 38 Enable RF E 45 Helix record top of file F 46 Go to local L 4C Inhibit RF N 4E Off O 4F Remote enable R 52 Standby S 53 Transmit X 58 Command Gen 5STX4 address S 5ETX4 checksum ASCII 5STX4 5S 5ETX4 g Hex 02 35 53 03 67 Response Gen 5ACK4 address S 5ETX4 checksum ASCII 5ACK45S5ETX4c Hex 06 35 53 03 63 6 4 2 Command Messages Requesting Data Command ASCII Hex War...

Страница 37: ...ress 0 mmmmnn 5ETX4 checksum ASCII 5ACK4506315015ETX45NUL4 Hex 06 35 30 36 33 31 35 30 31 03 00 The amplifier type is returned as 631501 N6315 operating with control software issue 01 Command ASCII Hex Status 1 31h Command Gen 5STX4 address 1 5ETX4 checksum ASCII 5STX4515ETX45ENQ4 Hex 02 35 31 03 05 Response Gen 5ACK4 address 1 D1 D2 D3 D4 D5 D6 D75ETX4 checksum ASCII 5ACK451P A A 5ETX4Q Hex 06 35...

Страница 38: ...ow power alarm enabled bit 2 HV overload bit 1 RF enabled bit 1 0 bit 0 remote enabled bit 0 PFC fault D5 D6 bit 7 parity bit 7 parity bit 6 1 bit 6 1 bit 5 0 bit 5 0 bit 4 0 bit 4 0 bit 3 external interlock bit 3 0 bit 2 reflected power bit 2 0 bit 1 mean helix current bit 1 case too hot bit 0 peak helix current bit 0 Upconverter fault D7 bit 7 parity bit 6 1 bit 5 0 bit 4 0 bit 3 baseplate too h...

Страница 39: ...ng is sent as nnn where nnn is in watts leading zeros not required The alarms are disabled by setting to zero A 0 B 0 The attenuator setting is sent as nnn where nnn is in nominal units leading zeros not required If the is omitted the command will be considered invalid and a not acknowledge response sent 6 4 6 Response To An Invalid Command Message Command messages will be classed as invalid if th...

Страница 40: ...AMOS issue 1 or higher Before attempting to control the amplifier using the RS 485 4 wire multi drop bus check the following Ensure that the data connector is correctly wired Rx Rx7 are not reversed etc Check that the amplifier data rate is the same as that of the master should be set to 9600 baud Ensure that the amplifier has a unique address Check that the master has the same data format as the ...

Страница 41: ...to minimum only on units fitted with DEVA option RF Inhibit facility active Check external RF inhibit circuitry If external RF inhibit circuit is not used check user interface connector mating half has a link between pins H and P see section 5 2 BASEPLATE OVER TEMPERATURE condition Inadequate cooling for the amplifier see section 3 3 Obstruction within the cooling airflow sys tem The lower lid is ...

Страница 42: ...e bung still fitted to amplifier wave guide output or other foreign object within waveguide including water moisture MEAN HELIX OVER CURRENT TRIP fault Contact your distributor PEAK HELIX OVER CURRENT TRIP fault Contact your distributor INTERMODULATION PRODUCTS too high out of specification With the upconverter option L band drive level too high see section 4 4 UPCONVERTER fault With the upconvert...

Страница 43: ...6315 150 W N6318 165 W Gain at rated power C variants 36 dB typical D variants 62 dB typical UA and UB variants 50 dB typical DUA and DUB variants 47 dB typical all other types 65 dB typical RF input level C variants 30 dBm max DUA DUB UA and UB variants 0 dBm max 710 dBm min all other types 10 dBm max Prime power voltage 99 to 265 V frequency 47 to 63 Hz power 1050 W max power factor 0 95 nom 8 2...

Страница 44: ... km 40 000 ft max Vibration MIL STD 810E common carrier and field transportation Shock IEC Publication 68 2 27 Part 2 Test Ea 25 g for 11 ms half sine Electromagnetic compatibility EMC Directive 89 336 EEC Safety Low Voltage Directive 73 23 EEC 8 4 RF Characteristics This amplifier meets the requirements of INTELSAT EUTELSAT for TWTAs in the Ku band Full details are shown on the appropriate data s...

Страница 45: ...F INHIB GND EXT INTLK RS Tx RS Rx RS Tx 7 RS Rx 7 RED FLT O P RED SW2 RS GND SWITCH SENSE RED SW1 RED FLT I P N C SERIAL BUS SERIAL BUS H P R S U b c d e m n k t q B 1 2 4 3 HPA A W G SWITCH HPA A HPA B 9 6 5 4 3 1 Rx7 RS485 0V RTN SCREEN Rx Tx7 Rx to Rx7 TERMINATING RESISTOR FITTED INTERNALLY Tx 9 WAY D TYPE PL1 N6143 CONTROLLER CONNECTIONS ADDRESS SELECT 31 H 15V RED SW2 RED SW1 p LOAD ANTENNA H...

Страница 46: ...e obtained by using manual toggle switches An example of the interface wiring for this is as follows A B C D E U J K L P r s k m n p q t t q p n m k s r P L K J U E D C B A H E B A C G J D F OFF STBY XMIT AUTO MAN SELECT SELECT A B XMIT STBY OFF HPA B WAVEGUIDE SWITCH HPA A HBN63xx 1 Issue 8 Page 46 ...

Страница 47: ...the antenna the N6145 controller is required as shown below With the amplifiers connected in this way an RF INHIBIT will be generated as the CRCA waveguide switch changes position HPA A k b c d e p P R H t HPA B t p R H k b c d e p S U 120 O 1 4 W TO CRCA 3 5 8 9 5 3 8 9 HPA A INTERFACE HPA B INTERFACE N6145 CONTROLLER 1 5 9 3 6 4 AMP INT N6143 CONTROLLER HBN63xx 1 Issue 8 Page 47 ...

Страница 48: ...mplifier mode of operation The N6081D is a low cost single amplifier controller that also provides the amplifier parameter display it uses the low voltage DC supply from the amplifier so it does not require a mains power connection Examples of the interface wiring for this method of control are as follows H P R b c d e p HPA 120 O 1 4 W Cable screened twisted pair 5 9 3 6 4 1 N6143 CONTROLLER USIN...

Страница 49: ...er 3 minutes warm up 2 To enter the OFF state switch 2 must be in the STBY position prior to the OFF state being selected via switch 1 3 The resistor values will depend on the type of LED used 4 If specific fault indication is required this circuit can be used Refer to section 5 2 1 for codes Printed in England A B C D E U W X Y Z a H J K L P R OFF WARM UP STBY XMIT SUM FLT SEE NOTE 4 MUX 0 1 2 3 ...

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