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8.3

Environmental

(for operation outside these parameters, refer to e2v
technologies for guidance)

Operating temperature . . . . . . . . . . . . . . . . . .

40 to +45

Derating . . . . . . . . . . . . . . . . . . .

C/300 m above sea level

Storage temperature . . . . . . . . . . . . . . . . . . .

40 to +80

Relative humidity (non-condensing) . . . . . . . . . . . . . . . . .

100%

Altitude:

operating

. . . . . . . . . . . . . . . . . . .

4.5 km (15,000 ft) max

non-operating. . . . . . . . . . . . . . . . . .

12 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 sheet.

Содержание Stellar N6312

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...

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 Pract...

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...

Страница 4: ...ntrol 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 Comple...

Страница 5: ...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...

Страница 6: ...r 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 va...

Страница 7: ...xternal 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 i...

Страница 8: ...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 positio...

Страница 9: ...moved 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 a...

Страница 10: ...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 ingres...

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 int...

Страница 12: ...d 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 Transition...

Страница 13: ...e 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...

Страница 14: ...onnector 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...

Страница 15: ...e 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 wir...

Страница 16: ...imilar 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...

Страница 17: ...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 operatin...

Страница 18: ...t 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...

Страница 19: ...lification 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...

Страница 20: ...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 contr...

Страница 21: ...he 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...

Страница 22: ...he 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 perio...

Страница 23: ...put 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 th...

Страница 24: ...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...

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...

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 R...

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...

Страница 28: ...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 de...

Страница 29: ...lifier 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...

Страница 30: ...F 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 s...

Страница 31: ...e 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 zer...

Страница 32: ...nother 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...

Страница 33: ...ular 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...

Страница 34: ...mmands 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...

Страница 35: ...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...

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 5...

Страница 37: ...ess 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...

Страница 38: ...w 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 int...

Страница 39: ...g 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 n...

Страница 40: ...MOS 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 et...

Страница 41: ...o 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...

Страница 42: ...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...

Страница 43: ...315 150 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 l...

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...

Страница 45: ...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...

Страница 46: ...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 X...

Страница 47: ...he 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...

Страница 48: ...plifier 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 re...

Страница 49: ...r 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 spe...

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