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4 RU SSPA Chassis Operations Manual

201627 REV X

49

produce a low RF alarm, providing that the low RF alarm option is enabled.

•

At this point, be sure that the forward RF alarm threshold level is set to a value
corresponding to the desired output level for the SSPA in question. The factory pre
-set for this value is always 10 dBm below the specified P

1db

compression point of

the SSPA. However, you may wish to set this level closer to the desired output level
in order to catch any minor fluctuations below the set level. If the level is set too
high, the low RF alarm may be displayed when there are no legitimate problems. If
the RF input signal has been lowered, this will also lower the output of the SSPA
and may cause a low RF alarm.

•

If the user is certain that the amplifier is in an alarmed state due to problems other
than the ones stated above, the user should verify that no other fault conditions are
present. If a power supply fault, current fault, or voltage fault is present, this may
also cause the low RF alarm to show. If any of these is the case, the user should
refer to the sections corresponding to that specific fault.

3.1 Modular SSPA Architecture

The Teledyne Paradise Datacom SSPA Chassis consists of a modular design, which
allows for quick and easy maintenance and replacement in the event of a catastrophic
failure of one of the SSPA components.

3.1.1 Removable Fans (intake and exhaust)

The intake and exhaust fan assemblies can be easily replaced with minimal
interruption of service. Replacement fans are available from Teledyne Paradise
Datacom.

The front panel (intake) fan tray is secured by six captive thumb screws. To remove,
loosen the screws and carefully remove the fan tray from the chassis. See

Figure 3-2

.

Unplug the fan power cord from the connector at the top of the plenum, and carefully
separate the connectors to fully remove the fan plate assembly. See

Figure 3-3

.

Figure 3-2: Remove fan tray from SSPA front
panel.

Figure 3-3: Unplug and separate
quick connectors.

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Содержание 4 RU Chassis

Страница 1: ...r Amplifier Operations Manual 201627 REV X ECO 16725 01 31 2012 Teledyne Paradise Datacom LLC Phone 814 238 3450 328 Innovation Blvd Fax 814 238 3829 State College PA 16803 USA Web www paradisedata com Email sales paradisedata com ...

Страница 2: ...HA United Kingdom 814 238 3450 switchboard 44 0 1376 515636 814 238 3829 fax 44 0 1376 533764 fax Information in this document is subject to change without notice The latest revision of this document may be downloaded from the company web site http www paradisedata com No part of this document may be reproduced or transmitted in any form without the written permission of Teledyne Paradise Datacom ...

Страница 3: ...t Key 16 2 1 1 4 Main Menu key 16 2 1 1 5 Local Remote key 16 2 1 1 6 Mute Unmute key 16 2 1 1 7 Input Sample Port Optional 16 2 1 1 8 Output Sample Port 16 2 1 1 9 Removable Fan Assembly 16 2 1 1 10 Power Toggle 16 2 1 2 Rear Panel Features 17 2 1 2 1 AC Input Port J10 17 2 1 2 2 DC Input Port J10 Option 18 2 1 2 3 DC Input with N 1 External Power Supply Option 18 2 1 2 4 RF Input Port J1 21 2 1 ...

Страница 4: ...P Setup 34 2 2 2 6 More 34 2 2 3 Operation Setup Sub Menu 35 2 2 3 1 Info 35 2 2 3 2 Buzzer 35 2 2 3 3 Mute 35 2 2 3 4 Sys Mode 35 2 2 3 5 Attenuation 35 2 2 3 6 RF Units 35 2 2 4 Fault Monitoring Setup Sub Menu 36 2 2 4 1 BUC Fault 36 2 2 4 2 Auxiliary Faults 36 2 2 4 3 RF Switch Faults 36 2 2 4 4 Fault Latch 37 2 2 4 5 Low RF Automatic Level Control 37 2 2 5 Options Sub Menu 38 2 2 5 1 Backup Us...

Страница 5: ...uired Hardware 53 3 1 4 2 Download Firmware 53 3 1 4 3 Step by Step Procedure 53 3 2 Changing N 1 hierarchy 54 3 2 1 Changing hierarchical order of slave units 54 3 2 2 Exchange N 1 privileges between master and slave units 54 3 2 3 Add an SSPA unit to the system 54 Section 4 1 1 Redundant Operation 57 4 0 Introduction 57 4 1 Hardware 59 4 1 1 Power Supply 59 4 1 2 RF Switch 59 4 1 3 Switch Connec...

Страница 6: ...mmunication Protocol 82 7 2 1 Header Sub Packet 82 7 2 1 1 Frame Sync Word 82 7 2 1 2 Destination Address 82 7 2 1 3 Source Address 82 7 2 2 Data Packet 83 7 2 2 1 Protocol ID 83 7 2 2 2 Request ID 83 7 2 2 3 Command 83 7 2 2 4 Data Tag 84 7 2 2 5 Error Status Data Address 84 7 2 2 6 Data Length 85 7 2 2 7 Data Field 85 7 2 3 Trailer Packet 86 7 2 3 1 Frame Check 86 7 2 4 Timing issues 86 7 3 Acce...

Страница 7: ...nectors 49 Figure 3 4 Rear Panel Fan Assembly 50 Figure 3 5 Remove Fan to Access Power Connectors 50 Figure 3 6 SSPA Module placements 51 Figure 3 7 Loosen thumbscrews from controller card connector plate 52 Figure 3 8 Remove Controller card to gain access to connectors 52 Figure 3 9 4RU RM SSPAs have two module programming connectors 52 Figure 3 10 Insert adapter tail into module programming conn...

Страница 8: ...24 Figure C 4 SSPA Settings Window 125 Figure C 5 IP Setup Window 125 Tables Table 2 1 Switch Port J3 pin outs 21 Table 2 2 Serial Main J4 pin outs 22 Table 2 3 Parallel connector 37 socket D connector 23 Table 2 4 Ethernet Port J9 pin outs 24 Table 4 1 RF Switch Connector Wiring 60 Table 4 2 Link Port J8 Pin Outs 60 Table 4 3 Parallel Connector Highlighting 1 1 Functions 64 Table 5 1 RF Switch Co...

Страница 9: ...hieves the highest power density in the industry and its user friendly modular design provides for easy maintenance and operation The indoor rack mounted unit contains an internal microprocessor which allows full monitoring and control from the front panel s 2x40 Front Panel Display and push buttons or via a remote serial RS 232 or RS 485 or parallel connector Section 1 General Information Figure ...

Страница 10: ...fications 1 3 Equipment Supplied The following equipment is supplied with each unit SSPA Chassis RM 4 RU high Power Cord Rack Slides Operations Manual Solid State Power Amplifier Chassis 201627 1 4 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 wh...

Страница 11: ...ls that contact the equipment should be properly insulated to prevent the operator from coming in contact with the voltage The work area should be secure and free from non essential items Operators should never work alone on high voltage de vices There should always be another person present in the same work area to assist in the event of an emergency Operators should be familiar with procedures t...

Страница 12: ...to high levels of RF energy has been linked to a variety of health issues Please use the following precautions with high levels of RF power Always terminate the RF input and output connector prior to applying prime AC input power Never look directly into the RF output waveguide Maintain a suitable distance from the source of the transmission such that the power density is below recommended guideli...

Страница 13: ...hould never work alone on hazardous equipment There should always be another person present in the same work area to assist in the event of an emergency Operators should be familiar with procedures to employ in the event of an emergency i e remove all power CPR etc ...

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Страница 15: ...rn green when the amplifier is in Online mode 1 1 Mode or serves as an AC power indicator in standalone mode Local Remote and Mute Unmute LEDs show the current control mode and mute state of the HPA Figure 2 1 illustrates the front panel 2 1 1 1 Front Panel Display The 40x2 character Front Panel Display allows the user to get detailed information about state of the HPA and provides easy customizat...

Страница 16: ...rovides easy way to change Mute state of the SSPA Muting the amplifier via the front panel requires 100 msec maximum 50 msec typical 2 1 1 7 Input Sample Port Optional N type F An optional RF input sample port is located on the lower left corner of the SSPA front panel This provides a 10 dBc coupled sample of the RF input signal It is a type N female connector 2 1 1 8 Output Sample Port N type F T...

Страница 17: ...ly is also power factor corrected enabling the unit to achieve a power factor greater than 0 93 An IEC 6100 3300 F connector is used for SSPAs with 110V input power A connecting cable is included with the amplifier The highest output levels 70 W Ku Band and 140 W C Band should be powered only from a 180 265 VAC source This will keep AC line currents to safe operating levels for the internal EMI fi...

Страница 18: ...re of a single power supply module will not take the amplifier off the air In addition the power supply modules are removable from the front panel while in operation There is never a need to remove the power supply from the equipment bay Weighing only 9 lbs 4 kg and occupying only 1 rack unit of cabinet space the redundant power supply chassis is an excellent companion to the SSPA chassis Power co...

Страница 19: ...627 REV X 19 Figure 2 4 SSPA with Optional N 1 Redundant External Power Supply SAMPLE RF INPUT POWER SAMPLE RF OUTPUT PARADISE DATACOM HPAK 2250 250W Ku BAND IN IN 12VDC 12VDC RF OUT J2 S N XXXX MODEL XXXXXXXXXXXX P N LXXXXXX X PS M C J12 J1 ...

Страница 20: ...the unit This cable connects between the Alarm port of the power supply and the PS M C Port J12 of the SSPA See Figure 2 6 Each power supply module has an alarm output For logic reporting purposes the alarm outputs for power supply modules 1 and 2 are linked as are those for power supply modules 3 and 4 The power supply alarms are monitored by the SSPA Chassis monitor and control system This provi...

Страница 21: ...fier without having a termination or mating connection on the RF Output Port RF Hazard warnings apply C Band units utilize a WR137 rigid waveguide with a CPRG137 grooved flange with through holes X Band units employ a WR112 rigid waveguide with a CPRG112 grooved flange with through holes Ku Band units use a WR75 waveguide with a grooved flange with through holes and S Band units have a type N fema...

Страница 22: ... In order to reload controller board firmware connect this port to a PC Parallel port through straight through cable For a full description see Section 3 Troubleshooting and Maintenance 2 1 2 10 Parallel I O J7 A DB37 female type connector the Parallel I O port contains a series of contact closures for monitoring HPA faults as well as opto isolated inputs for controlling some HPA functions Inputs ...

Страница 23: ... High Temperature Fault Common 27 1 Standalone mode Closed on Regulator Low Voltage Fault 2 1 1 Redundancy Mode Closed on HPA Standby Form C relay NC 28 1 Standalone Mode Opened on Regulator Low Voltage Fault 2 1 1 Redundancy Mode Closed on HPA Online Mode Form C relay NO 9 Regulator Low Voltage Fault Standby Online Common 10 Closed on DC Current Low Fault Form C Relay NC 11 Opened on DC Current L...

Страница 24: ...in a redundant system in order to pass online standby status information between them Leave unconnected unless specified otherwise This connector is discussed further in Section 4 1 4 and Section 5 5 2 1 2 12 Ethernet Port J9 This is a RJ45 connector with integrated magnetics and LEDs This port becomes the primary remote control interface when the Interface option is selected to IPNet as described...

Страница 25: ...ad Item selection is shown in the bottom right corner of the VFD display All selectable items have a sequential number The user can increment or decrement the selected item number by using Left and Right buttons Selection is finalized when the user presses the Enter button Pressing the Main Menu button brings the menu level to the Main Menu page from any stage of the menu selection Some items with...

Страница 26: ...XXXXXXXXXXXXXXXX Firmware XXXXXXXXXX Module1 ID XXXXXXXXXXXXXXXXXXXXXX 1 Info Firmware XXXXXXXXXX Module2 ID XXXXXXXXXXXXXXXXXXXXXX Firmware XXXXXXXXXX Module3 ID XXXXXXXXXXXXXXXXXXXXXX Firmware XXXXXXXXXX Module4 ID XXXXXXXXXXXXXXXXXXXXXX Main Menu 3 Operation Main Menu 3 Operation 5 IPSetup Web Password XXXXXXXXXXXXXXXXXXXXX N 1 Slave Unit Unit operation under system control N 1 Slave unit syste...

Страница 27: ...h may be present within the HPA Fault values could be Fault Normal and N A PS power supply alarm displays Normal if HPA power supplies are normally operational and Fault if one or more power supplies failed LowRF low RF fault Fan cooling system failures Aux Auxiliary fault condition VSWR High Reflected power fault BUC Block Up converter fault If the fault condition doesn t apply to the HPA configu...

Страница 28: ...on HPA retains unmuted state during standby period and Cold for cold standby HPA always mutes itself in standby mode and unmutes when switched back on line Ctrl shows HPA control style Local both local and remote control are supported and Remote when only remote control provided keypad locked Switch indicates switching style Auto for automatic fault tracking switching and Manual if redundancy swit...

Страница 29: ...s type of fault will not affect HPA overall summary fault state because the controller card has the ability to track RF module faults independently 2 2 1 9 IP Info Page1 This page is available through the Comm Setup menu and shows SSPA settings related to the IP interface IP Address IP address of the SSPA Consult your network administrator to set this address according to your LAN configuration MA...

Страница 30: ...ws write operation for the RM SSPA SNMP agent Community strings are essentially passwords The user should use the same rules for selecting them as for any other passwords no dictionary words spouse names etc An alphanumeric string with mixed upper and lower case letters is generally a good idea 2 2 1 12 IP Info Page 4 This page indicates the selected password for the web page interface A blank spa...

Страница 31: ...tor unit is not accessible for any reason the value shown will be N A Note If detected power falls below lowest detectable threshold it will read 0 00 In reality RF output power may differ from the displayed value Consult your system datasheet on RF detector dynamic range specifications Ref RF Indicates system reflected RF power This value can be displayed in dBm or Watts depending on the RF Unit ...

Страница 32: ... of detected SSPA unit alarms present in the system N 1 State Displays the current N 1 fault state If the Master unit detects no more than one 1 SSPA chassis alarm the N 1 state will be displayed as Normal otherwise Fault 2 2 1 19 N 1 Master info Page 3 This page displays information related to N 1 system operation and can be accessed by pressing the up arrow button twice from the N 1 Master Info ...

Страница 33: ...e for serial communication Available baud rates include 2400 4800 9600 19200 and 38400 The factory default Baud Rate is 9600 2 2 2 3 System Address Sets the network address of the controller if used on a RS 485 network Choose 1 255 The factory default address is 0 2 ComSetup 3 Sys Addr 1 2400 1 RS232 3 Subnet 1 Community Get 1 Sys Info 2 Baud Rate 2 Terminal 1 255 2 LocalIP 3 Operation 4 Interface...

Страница 34: ...ny of the following to adjust the existing settings Local IP Subnet Mask Default Gateway Lock IP and Local Port 2 2 2 6 More This menu allows the user to set the Community String Selection Set Get and assign the Web Password Use the Up Down keys to browse through selected characters Press the up and down arrow keys simultaneously to erase the selected char acter Press the Left Right keys to naviga...

Страница 35: ...r via remote M C requires 70 msec maximum 30 msec typical 2 2 3 4 Sys Mode Selects the logical state machine used by the controller Available choices are Standalone 1 1 Redundancy and 1 1 Phase Combined 2 2 3 5 Attenuation Allows user to set the desired attenuation between 0 and 20 0 dB 2 2 3 6 RF Units Allows user to set the unit of power measurement between dBm or Watts 2 ComSetup 1 Sys Info 2 B...

Страница 36: ...1 2 10a for a description of how to mute the amplifier using the Alert Mute option 2 2 4 3 RF Switch Faults Determines whether a switch fault should cause a major alarm and attempt to switch or simply show an alert on the front panel the latter case considered a minor alarm Choices are Sys Fault which is the Major Alarm mode and produces a summary alarm and Alert which is the Minor Alarm mode and ...

Страница 37: ...ALC circuit will have the greatest ability to adjust for positive and negative RF input level changes when the amplifier s gain level is typically 65 dB By following the steps below the optimum ALC RF input level can be set quickly 1 Using the front panel menu make sure the amplifier is not in ALC mode 2 Set the amplifier attenuation level to 10 dB 3 Apply a CW RF signal to the amplifier 4 Use a p...

Страница 38: ...including the Fault Indicators Amplifier Selection Signal Path Mimic Display Local Remote Key and Auto Manual Key Press Enter to exit the Lamp Test 2 2 5 4 Password Allows the user to set Enable change or clear Disable a password that prohibits others from changing controller settings A number from 1 255 can be selected Use front panel navigation keys to set the number Up Down arrows change the nu...

Страница 39: ...ngs for units in a 1 1 redundant mode 2 2 6 1 Switching User may select between Auto and Manual switching 2 2 6 2 Standby Select Allows user to select between Standby and Online states 2 2 6 3 Standby Mode User may select either Hot Standby or Cold Standby 2 ComSetup 1 Sys Info 3 Operation 4 Flt Setup 5 Options 1 Switching Main Menu 6 Redundancy 2 Stdby Select 3 Stdby Mode 4 Unit Status 1 HPA1 2 H...

Страница 40: ...ption allows the selection of the unit s N 1 priority address All units in a N 1 array must be unique and with a contiguous N 1 address Due to the architecture of the 4RU chassis a single chassis utilizes one or two addressing units depending on the number of SSPA modules present typically addresses 1 and 2 For a system made up of two 4RU chassis the second chassis utilizes addresses 3 and 4 The u...

Страница 41: ...t Cause Master unit only Displays the cause for the last detected N 1 unit fault Possible values include None for no faults Timeout if a Slave unit fails to respond to a Master request for three 3 consecutive queries or Summary if a unit exhibited a Summary fault 2 3 N 1 Operational Basics single unit A single SSPA unit may be operated in N 1 mode in order to take advantage of the Auto Gain Contro...

Страница 42: ...eafter as the N 1 Address means a higher rank in the N 1 hierarchy The fault free unit with the lowest N 1 ad dress is selected as the N 1 Master unit The remainder of the units become N 1 Slave units Slave unit settings are under full control of the Master unit Any system related setting change made on the Master unit automatically propagates to the Slave units to keep all units under N 1 control...

Страница 43: ...ndividually at every SSPA chassis The setting for enabling disabling sizing the N 1 system is also not controlled by the Master unit This setting allows the user to virtually remove individual SSPA units from the N 1 control array for maintenance and troubleshooting 2 4 3 N 1 Addressing During initial system installation an appropriate N 1 address has to be selected for each unit in the system Eac...

Страница 44: ...an be activated from the SSPA front panel or a re mote interface To toggle Automatic Gain Control press the MAIN MENU key 6 Redundancy 6 N 1 3 Gain Control Select either Auto Gain On or Auto Gain Off When this option is activated the SSPA will automatically reserve 5 dB of attenuator range for future gain compensation This will reduce the maximum SSPA gain by 5 dB The attenuator range will also be...

Страница 45: ...ind cause of the failure the operator will need to evaluate the local fault conditions of the failed SSPA unit 2 5 Reflected Power Option When this option is installed the user may measure the amount of reflected RF power present at the amplifier s output flange with a dynamic range of 12 dB starting at the maximum RF output For example an amplifier with 50 dBm 100W of maximum forward RF would be ...

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Страница 47: ...f the front panel display If the voltages are outside of the normal output ranges as described in Section 2 2 1 6 consult the factory 3 0 3 Temperature Fault If you are experiencing a temperature fault follow the steps below Check the ambient are temperature of the room where the SSPA is installed Check the environmental specifications on the specification sheet for your SSPA If the ambient temper...

Страница 48: ...r supply readings on the SSPA front panel Sometimes muting the amplifier corrects the power supply fault Additional troubleshooting requires that the bottom panel be removed Doing so voids the warranty unless performed by an approved service technician Contact the factory before proceeding further 3 0 6 Fan Fault In the case of a fan fault follow the tips below Inspect the fans The user should che...

Страница 49: ...onditions are present If a power supply fault current fault or voltage fault is present this may also cause the low RF alarm to show If any of these is the case the user should refer to the sections corresponding to that specific fault 3 1 Modular SSPA Architecture The Teledyne Paradise Datacom SSPA Chassis consists of a modular design which allows for quick and easy maintenance and replacement in...

Страница 50: ...r warranty as doing so voids the warranty Proceed only with authorization from the factory Remove power from the Rack Mount SSPA The cover plate is held in place with sixteen 6 32 x 1 4 flat head screws Remove these and save the hardware Once the cover is removed disconnect the power cables from each SSPA module Also disconnect the semi rigid coax connections on the RF IN Sample and optional Refle...

Страница 51: ... for Ku band eight 8 10 32 x 5 8 for C band Two module eight 8 6 32 x 5 8 for Ku band 16 10 32 x 5 8 for C band with flat and lock washers These must all be removed before the SSPA module can be removed from the chassis Figure 3 6 shows a variety of module configurations within the rack mount chassis Figure 3 6 SSPA Module placement C band single module left top C band dual module left bottom Ku b...

Страница 52: ...the cavity as shown in Figure 3 8 This exposes the SSPA module programming connectors 3 1 4 Firmware Upgrade Procedure Teledyne Paradise Datacom s digital engineers continually strive to improve the performance of the RM SSPA software and firmware As this occurs software and firmware upgrades are made available The following procedure describes how to install a firmware upgrade for a 4RU RM SSPA M...

Страница 53: ...his zip file contains programmer software avreal32 exe firmware hex file code hex executable batch files prg_LPTx bat prg_LPT1 bat for LPT1 prg_LPT2 for LPT2 and prg_LPT3 for LPT3 dlportio zip this zip file contains parallel port drivers required by Windows OS A document which describes the required hardware and procedure for upgrading the firmware 3 1 4 3 Step by Step procedure a Unpack dlportio ...

Страница 54: ...bility of encountering problems during the firmware upload Not all LPT ports automatically get high priority service from Windows OS If a problem occurs during the verification process simply shut down the console windows by pressing Ctrl C buttons on the keyboard Repeat the update process starting from Step d of this procedure It may take two or three attempts f Replace the RM SSPA Controller Car...

Страница 55: ... or above for system of 8 units select address 9 or above etc 3 For second slave unit change its N 1 address to match previous N 1 ad dress of the first unit 4 Change N 1 address of the first slave unit to match 5 System addressing hierarchy is now exchanged between first and second unit Turn on Auto Gain option if required 3 2 2 Exchange N 1 privileges between master and slave units To delegate m...

Страница 56: ...ain option 3 If the new unit has a known N 1 address in conflict with one of the current SSPA slave units resolve it by changing address of the current Slave unit 4 Add new unit to system Make sure newly added unit assumed N 1 slave mode Make sure current Master unit doesn t detect any N 1 faults 5 Change Master unit N 1 address from value 0 to it s previous value 6 Follow Scenario 1 and 2 if hier...

Страница 57: ...s is designated as on line the other is designated as standby The on line SSPA receives the input RF signal and transmits an amplified RF signal to the RF load The output of the standby SSPA is terminated at the dummy load Figure 4 1 shows a block diagram of a typical 1 1 Redundant System Two modes are available for the standby SSPA Hot or Cold standby An SSPA in Hot standby mode remains fully ope...

Страница 58: ...58 201627 REV X 4 RU SSPA Chassis Operations Manual Figure 4 2 RM SSPA 1 1 Systems with 1RU N 1 Power Supplies RCP2 1100 Legacy 4RU 1 1 Redundant System ...

Страница 59: ...nset is a cabinet ready 200W C Band 1 1 System 4 1 1 Power Supply Each SSPA may depending on the SSPA power level contain up to two 28V power supplies which can supply power to a waveguide switch The state of the 28V power supplies referred to as Boost1 and Boost2 can be monitored from the front panel and through remote serial protocol Power supplies are fully protected from over current and over ...

Страница 60: ...ws the pin outs of J8 Figure 4 4 shows an outline drawing of a typical link cable HPA1 P2 HPA2 P3 RF Switch P1 Description 1 1 B Common 28V 3 3 A Pos 1 2 2 C Pos 2 Table 4 1 RF Switch Connector Wiring Figure 4 3 Outline Drawing Switch Connector Cable J8 Pin Function Description 6 7 Link Out connect to Link In of Second SSPA 8 9 Link In connect to Link Out of Second SSPA 1 2 3 4 Reserved make no co...

Страница 61: ...edundant mode 4 2 1 1 Setting SSPA1 to work in 1 1 mode 1 From the front panel of SSPA1 press the Main Menu key 2 Select item 3 Operation and press Enter key 3 Select item 5 Sys Mode and press Enter key 4 Select item 2 1 1 Mode and press Enter key 4 2 1 2 Setting SSPA1 switching mode 1 From the front panel of SSPA1 press the Main Menu key 2 Select item 6 Redund and press Enter key 3 Select item 1 ...

Страница 62: ...SSPA will revert to the on line state after 1 second Note Only the on line SSPA can be switched to standby The reverse process switching the standby SSPA to the on line state will not work In manual mode the standby SSPA will always accept the on line state regardless of its own fault status The user can verify the state of the waveguide switch by browsing to informative screen 3 on the front pane...

Страница 63: ...l issue if coaxial RF pass switches are used In general all Teledyne Paradise Datacom SSPAs are well protected against high reflected power conditions which may take place during output microwave switchover However waveguide or coaxial switches will develop an internal electrical arc during switchover if the output power is significant Such conditions will not lead to instant failure but over time...

Страница 64: ...tage Fault 2 1 1 Redundancy Mode Closed on HPA Standby Form C relay NC 1 Standalone Mode Opened on Regulator Low Voltage Fault 2 1 1 Redundancy Mode Closed on HPA Online Mode Form C relay NO 9 Regulator Low Voltage Fault Standby Online Common 10 Closed on DC Current Low Fault Form C Relay NC 11 Opened on DC Current Low Fault Form C Relay NO 29 DC Current Low Fault Common 30 Closed on Low Forward R...

Страница 65: ...as spare backup for ether HPA1 or HPA3 see Figure 5 1 A 1 2 redundancy system normally requires a separate redundancy controller RCP The RCP is used to constantly check the state of the controlled HPAs and in case of malfunction rotate the waveguide switches according to an internal logic table Operation of a 1 2 system with controller is more fully discussed in the Redundant Systems Controller Op...

Страница 66: ...nd on remote interface Typical switchover time is 200mS or less Switchover also can be performed by physical rotation of one or both waveguide switches Unlike internal 1 1 redundancy mode the SSPA will not prevent the operator from turning the switch 5 1 Required hardware Three Teleydne Paradise Datacom RM SSPAs with controller card firmware revision better than 2 50 and I O card version better th...

Страница 67: ...pulsing either position to the ground The system then verifies the position of the switch 5 4 Switch Connector The 6 pin connector J3 Molex P N 43810 002 can be located on the SSPA rear panel This connector is used to interface with the RF switches Teledyne Paradise Datacom recommends the following parts to build a mating pair to this connector all P N by Molex Pin Crimp 39 00 0039 receptacle 39 0...

Страница 68: ...tem is in operation The system will not operate properly Table 5 2 shows the pin outs of J8 Figure 5 3 shows an outline drawing of a typical link cable Figure 5 4 shows a representation of how switch and link cables are connected between the SSPAs and the waveguide switches HPA1 J8 Link Port HPA2 J8 Link Port HPA3 J8 Link Port Pin Description Pin Description Pin Description 7 Link Out to HPA3 8 Li...

Страница 69: ... J3 Switch Port 1 2 3 4 5 6 J8 Link Port 7 8 6 9 HPA1 J3 Switch Port 1 2 3 4 5 6 J8 Link Port 7 8 6 9 HPA2 J3 Switch Port 1 2 3 4 5 6 J8 Link Port 7 8 6 9 HPA3 B C A RF Switch 2 A B C RF Switch 1 Figure 5 4 1 2 System Wiring Diagram L203376 1 L203377 1 ...

Страница 70: ... position in the rack See below for step by step instructions Configuring HPA1 to work in 1 2 redundant mode From front panel of HPA1 press the Main Menu key Select item 3 Operation and press the Enter key Select item 5 Sys Mode and press the Enter key Select item 3 1 2 Mode and press the Enter key Setting HPA1 switching mode From front panel of HPA1 press Main Menu key Select item 6 Redund and pr...

Страница 71: ...PA in standby mode press the Unit1 key and the light should go off If the system is in Auto mode the standby SSPA should accept an on line state if cleared from a summary fault The Unit1 LED on the standby SSPA will illuminate indicating it is online and rotate the waveguide switch es to the correct position to redirect its output power to the selected polarity If the standby SSPA doesn t accept t...

Страница 72: ...keep the selected SSPA online regardless of its state Note In order to function normally all SSPAs must utilize the same switching mode 5 9 Physically rotating transfer switch It is possible to physically rotate the shaft on the transfer switch to change the online and standby amplifiers This can be done in either manual or automatic mode In Auto mode the system will prevent the user from putting ...

Страница 73: ...efer to the 4RU Rack Mount SSPA specification sheet 201355 The block up converters are high performance frequency translation devices which provide excellent phase noise and spurious performance The ZBUC converter also supports FSK communications for remote M C capability The FSK is a 650 KHz signal that is multiplexed onto the L Band input of the unit The ZBUC converter utilizes Teledyne Paradise...

Страница 74: ...ber 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 This ensures that no spurious or off frequency transmission could originate from the amplifier Note Unless the BUC has the built in internal reference option with no 10 MHz reference signal present on the IFL ...

Страница 75: ...e noise performance previously unattainable in PLL design The typical phase noise specification is outlined in Table 6 2 Band selectivity is accomplished using the most aggressive filtering possible while maintaining specified power and spurious performance Table 6 1 ZBUC Converter Frequency Specifications Band Frequency Plan IF Input LO Frequency RF Output C Standard C Band 950 1525 MHz 4 900 GHz...

Страница 76: ...e option installed the internal refer ence also becomes a backup reference which will become active in the event that external system reference is lost External reference is applied to the ZBUC converter via the L Band input IFL and is routed to the frequency synthesizer using the built in demux circuitry Notes 1 The external reference option requires the system operator to provide system referenc...

Страница 77: ...ality grade of 50 ohm cable such as Belden 9913 9914 or 7733 Check the manufacturer s technical data to make sure that the insulation is sufficient for the particular installation including the cable s temperature range Also make sure the coaxial connector from the IFL cable to the amplifier input is wrapped with a weather sealing tape to prevent water intrusion into the coaxial cable Cable Type C...

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Страница 79: ...ont panel commands are disabled with the exception of the Local Remote button See Section 7 1 for details The serial interface supports both RS232 and RS485 standards The control protocol supports two formats the Normal serial protocol as detailed in Section 7 2 and an ASCII based protocol suitable for HyperTerminal applications see Section 7 5 The Ethernet interface provides the ability to contro...

Страница 80: ...ed to connect the SSPA to a network hub and crossover CAT5 is used to connect directly to a computer s Ethernet port 7 1 Remote Control Parallel 7 1 1 Control Outputs The hardware behind the form C relay is a single pole double throw relay Under normal operation no alarms the relays are in an energized state When a fault occurs or the controller is powered off the relays are in a de energized stat...

Страница 81: ... need be pulled low for a minimum of 50 msec For example to make amplifier 2 the standby amplifier pulse pin 36 to ground for 50 msec If the operator then chooses to make amplifier 1 the standby amplifier simply pulse pin 37 to ground for 50 msec The Schematic representation of the control input is shown in Figure 7 3 The external alarm and auxiliary alarm inputs use the same opto isolated input c...

Страница 82: ...for a node to synchronize to a known point of transmission 7 2 1 2 Destination Address The destination address field specifies the node for which the packet is intended It may be an individual or broadcast address The broadcast address is 0xFF This is used when a packet of information is intended for several nodes on the network The broadcast address can be used in a single device connection when ...

Страница 83: ... frame without change This byte serves as a request tracking feature 7 2 2 3 Command This one byte field tells the receiver how to use the attached data There are only four 4 possible values for this field The sender and receiver are limited to two commands For example if the sender issued Set Request command receiver must answer with Get Request and Get Response form of the command The byte value...

Страница 84: ...ted this byte position is replaced with the Error Status fields The various error codes are given in Table 7 3 Note that the Request and Response frames are different Tag Name Byte Value Minimum valid length of Data Field Description System Tag Settings 0 1 byte This tag allows accessing various system settings on remote unit Host access status Full Read Write access Settings can be modified at an...

Страница 85: ...nerally the Bad Checksum error code will be added to the response from the amplifier if the word size of the information is 16 bits or 2 bytes Each data word is placed in the frame with its least significant byte first All data with length of 2 bytes must be represented as integer type with maximum value range from 32767 to 32767 Error Code Name Byte Value Possible Cause No Errors 0 Normal Conditi...

Страница 86: ...hecksums are generated by summing the value of each byte in the packet while ignoring any carry bits A simple algorithm is given as Chksum 0 FOR byte_index 0 TO byte_index packet_len 1 Chksum chksum BYTE byte_index MOD 256 NEXT byte_index 7 2 4 Timing issues There is no maximum specification on the inter character spacing in messages Bytes in messages to amplifier units may be spaced as far apart ...

Страница 87: ...Maximum length of the data fields in both directions should not exceed 32 bytes In the diagram represented in Figure 7 8 Request frame A is the Packet Wrapper frame It contains Request frame B intended to be redirected to the remote SSPA Protocol ID 0 Request ID 0 to 255 Command 0 1 Data Tag 6 Response Length n 11 m Data Length 11 to 11 m Header 4 Bytes Command Preamble 6 Bytes Request Frame B 11 ...

Страница 88: ...ersion Re quest ID Command Data Tag Data Address Data Length Data Table 7 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 2 Set Response 3 Get Response 8 Data Tag 0 System Settings 1 System Thresholds 2...

Страница 89: ...Network Address Valid Values 0 255 9 1 Serial Interface 1 RS232 0 2 RS485 1 3 IPNet 2 Version 2 50 SNMP 3 Version 4 00 10 1 Auxiliary Fault Handling 1 Disable Fault Checking 0 2 Major Fault 1 3 Minor Fault 2 4 Major Fault SSPA Mute 3 11 1 Auxiliary Fault Logic 1 Fault on Logic High 0 2 Fault on Logic Low 1 12 1 RF Switch Fault Handling 1 Disable Fault Checking 2 Major Fault 1 3 Mi nor Fault 2 4 Sw...

Страница 90: ...yte 1 34 1 IP Gateway Byte 2 35 1 IP Gateway Byte 3 36 1 IP Gateway Byte 4 LSB 37 1 Subnet Mask Byte 1 MSB 38 1 Subnet Mask Byte 2 39 1 Subnet Mask Byte 3 40 1 Subnet Mask Byte 4 LSB 41 1 Receive IP Port Byte 1 MSB 42 1 Receive IP Port Byte 2 LSB 43 1 IP Lock Address Byte 1 MSB 44 1 IP Lock Address Byte 2 45 1 IP Lock Address Byte 3 46 1 IP Lock Address Byte 4 LSB Version numbers listed indicate t...

Страница 91: ...n 100 if reading is not available at this time 6 2 Booster Power Supply 1 Output Voltage 0 1V per 1 value Value will return 100 if reading is not available at this time 7 2 Booster Power Supply 2 Output Voltage 0 1V per 1 value Value will return 100 if reading is not available at this time 8 2 SSPA Core Temperature 1 C per 1 value Value will return 100 if reading is not available at this time Vers...

Страница 92: ...an Fault No Fault 0 Fault 1 N A 2 13 1 Low Forward RF Fault No Fault 0 Fault 1 N A 2 14 1 High Reflected RF Fault No Fault 0 Fault 1 N A 2 15 1 RF Switch 1 Position Fault 1 N A 2 Pos1 3 Pos2 4 16 1 RF Switch 2 Position Fault 1 N A 2 Pos1 3 Pos2 4 17 1 Optional Faults Port Byte 1 Valid value range 0 255 18 1 Optional Faults Port Byte 2 Valid value range 0 255 19 1 I O Board ID Byte Bit 0 0 Bit 1 0 ...

Страница 93: ...sion 4 40 Table 7 9 ADC Data Addressing Details Data Address Min Data Length bytes Description Limits and valid values 0 2 Current Value of ADC Channel 0 Reserved for future expansion 1 2 Current Value of ADC Channel 1 Reserved for future expansion 2 2 Current Value of ADC Channel 2 Reserved for future expansion 3 2 Current Value of ADC Channel 3 Reflected RF Power Valid range 0 1023 4 2 Current V...

Страница 94: ...t Originating PC Host 5 0 Protocol Version Compatibility Field must always be 0 6 111 Request ID byte is set by originator will be echoed back by respondent 7 1 Command field for Get type of the request 8 0 System Settings tag indicates which data from respondent required in response frame 9 1 Data Address field indicates the beginning data address inside of the System Settiongs data set to 1 firs...

Страница 95: ...tings 19 0 Data field 9 contains data element 9 of the System Settings 20 0 Data field 10 contains data element 10 of the System Settings 21 0 Data field 11 contains data element 11 of the System Settings 22 0 Data field 12 contains data element 12 of the System Settings 23 0 Data field 13 contains data element 13 of the System Settings 24 0 Data field 14 contains data element 14 of the System Set...

Страница 96: ...port settings For example if the SSPA is set at 9600 Baud the remote terminal must be also configured as ASCII terminal at 9600 Baud no parity 8 bit data with 1 stop bit serial connection The SSPA will not echo back any incoming characters so local echo must be enabled on the remote terminal To establish a remote control session with the SSPA terminal the user must type UNIT XXX in the terminal wi...

Страница 97: ...RF dBm N A Ref RF dBm N A Active Keys U p Enter D own Enter C lrearFlt M enu Enter E nd Enter D PS Normal Aux N A LowRF N A VSWR N A Fan Normal BUC N A Active Keys U p Enter D own Enter C lrearFlt M enu Enter E nd Enter M 1 Sys Info 2 Com Setup 3 Operation 4 Flt Setup 5 Options 6 Redund Active Keys 0 9 Enter R efresh Enter M enu Enter E nd Enter 3 1 Info 2 Buzzer 3 Mute 4 Control 5 Sys Mode 6 Atte...

Страница 98: ...zing the benefits of an Ethernet IP interface These benefits include Unsurpassed system integration capabilities Widely available and inexpensive set of support equipment network cable network hubs Ability to control equipment over Internet Ease of use Implementation of the raw Ethernet interface is not practical due to the limitations it places on M C capabilities by the range of a particular LAN...

Страница 99: ...th standard IP services Paradise Datacom recommends usage of ports 1038 and 1039 These ports are not assigned to any known application As an application layer protocol which actually carries meaningful data the standard Teledyne Paradise Datacom RM SSPA serial protocol was selected This protocol proves to be extremely flexible and efficient It is also media independent and can be easily wrapped in...

Страница 100: ...mote access After selecting the IP parameters you may turn on IP interfaces through front panel Main Menu 2 Com Setup 4 Interface 3 IPNet Enter Ethernet Interface is now the primary remote control interface and the RS232 485 Main port is disabled You may adjust any IP settings when the IPNet interface is turned on as needed without losing your IP link All new settings will become effective only af...

Страница 101: ...Open a Command Prompt window and type ARP a the press Enter The current table will be displayed If you see the RM SSPA IP address entry in the table delete it by issuing the command ARP d XXX XXX XXX XXX and press Enter XXX XXX XXX XXX is the IP address of the RM SSPA unit Now try the PING command again More information about how to set up a network connection with the RM SSPA can be found in Appe...

Страница 102: ...played on the various links within the M C application These links include tabs for Status and Faults Communication Settings General Settings and Fault Settings Status and Faults A view of critical device operational parameters including Output Power Power Supply voltages and current and fault statuses A red indicator light is displayed when a fault condition occurs a green indicator light indicat...

Страница 103: ...LC provided SNMP capabilities to rack mountable amplifiers those using Digicore Firmware Version 4 00 or better These amplifiers support the most popular SNMPv1 format SMIv1 RFC1155 SNMP Get SNMP GetNext and SNMP Set commands SNMP Traps are currently unsup ported In order to utilize SNMP protocol the user has to enable this feature through the front panel or by remote serial protocol SNMP uses the...

Страница 104: ...ex rwn Integer32 settingIndex 1 rwn Integer32 settingValue 2 r n OctetString settingTextValue 3 thresholds 2 thresholdsEntry 1 thresholdIndex rwn Integer32 thresholdIndex 1 r n Integer32 thresholdValue 2 r n Enumeration thresholdStatus 3 r n OctetString thresholdText 4 conditions 3 conditionsEntry 1 conditionsIndex rwn Integer32 conditionsIndex 1 r n Integer32 conditionsValue 2 r n Counter conditi...

Страница 105: ...to 5 branches paradiseDevice paradiseDeviceA paradiseDeviceB paradiseDeviceC and modem paradiseDevice branch currently is used for all Paradise Datacom LLC SNMP enabled devices except Modem See the Evolution Modem manual for specific MIB information Branches for Devices A B and C are reserved for future use paradiseDevice Field contains tables that hold specific device information Settings Thresho...

Страница 106: ... info for RM SSPA SNMP device see Table 7 11 Read write access for settingsValue column thresholds Table provides information about device internal limits and subsystems info For detailed table information refer to Table 7 12 Read only access conditions Table contents device fault status information Read only access For detailed conditions table info see Table 7 13 ...

Страница 107: ...ic 12 INTEGER RFSWFltHandle Ignore 0 Major 1 Minor 2 1 3 6 1 4 1 20712 2 1 1 1 2 12 RF switch fault handling 13 INTEGER FaultLatch Disable 0 Enable 1 1 3 6 1 4 1 20712 2 1 1 1 2 13 Fault latch state 14 INTEGER BUCFltHandle Ignore 0 Major 1 Minor 2 Major Mute 3 1 3 6 1 4 1 20712 2 1 1 1 2 14 Internal BUC fault handling 15 INTEGER BUCFltLofic FaultOnHigh 0 FaultOnLow 1 1 3 6 1 4 1 20712 2 1 1 1 2 15...

Страница 108: ...0712 2 1 1 1 2 37 Device Subnet Mask byte1 MSB 38 INTEGER IPSubnetByte2 0 255 1 3 6 1 4 1 20712 2 1 1 1 2 38 Device Subnet Mask byte2 39 INTEGER IPSubnetByte3 0 255 1 3 6 1 4 1 20712 2 1 1 1 2 39 Device Subnet Mask byte3 40 INTEGER IPSubnetByte4 0 255 1 3 6 1 4 1 20712 2 1 1 1 2 40 Device Subnet Mask byte4 LSB 41 INTEGER IPPortByte1 0 255 1 3 6 1 4 1 20712 2 1 1 1 2 41 Device Port address byte1 MS...

Страница 109: ...tx10 0 200 1 3 6 1 4 1 20712 2 1 2 1 2 5 Power Supply 2 output voltage 6 INTEGER Booster1Voltage Voltx10 0 320 1 3 6 1 4 1 20712 2 1 2 1 2 6 Booster 1 output voltage 7 INTEGER Booster2Voltage Voltx10 0 320 1 3 6 1 4 1 20712 2 1 2 1 2 7 Booster 2 output voltage 8 INTEGER SSPACoreTemperature C 100 100 1 3 6 1 4 1 20712 2 1 2 1 2 8 SSPA core temperature Table 7 12 Detailed Thresholds 9 INTEGER N1FwdR...

Страница 110: ...wForwardRFFault NoFault 0 Fault 1 N A 2 1 3 6 1 4 1 20712 2 1 3 1 2 13 Low forward RF fault state 14 INTEGER HighReflectedRFFault No Fault 0 Fault 1 N A 2 1 3 6 1 4 1 20712 2 1 3 1 2 14 High reflected RF fault state 15 INTEGER RFSwitch1Position Fault 1 N A 2 Pos1 3 Pos2 4 1 3 6 1 4 1 20712 2 1 3 1 2 15 PF switch position1 fault state 16 INTEGER RFSwitch2Position Fault 1 N A 2 Pos1 3 Pos2 4 1 3 6 1...

Страница 111: ...following sequence from the SSPA Main Menu Main Menu 2 Com Setup 5 IP Setup 3 Subnet Then by using the navigation keys adjust the unit subnet mask Press the Enter key when complete 4 Set up the unit Community Set and Get strings Select the following se quence from the SSPA Main Menu Main Menu 2 Com Setup 5 IP Setup 6 More 1 CommunitySet or 2 CommunityGet Then by using the navigation keys adjust th...

Страница 112: ...radise Datacom LLC MIB file into the Getif Mibs sub folder 2 Start the GetIf application 3 Select the unit IP address and community strings in the relevant text boxes on the Parameters tab see Figure 7 12 and then click the Start button 4 Select the MIBBrowser tab 5 Click on iso main entity on the MIB tree then click the Start button 6 See update data in output data box Figure 7 13 Figure 7 12 Get...

Страница 113: ...EV X 113 Figure 7 14 Getif MBrowser window setting settingValue 5 to a value of 1 7 Select settingValue 5 entity SSPA Mute set the value to 1 and click the Set button 8 Observe the Mute state on the SSPA change to a Mute On state See Figure 7 14 ...

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Страница 115: ...J6 Ethernet Port of the RM SSPA controller to a host PC through a cross over null modem network cable see Appendix B for wiring details 2 If the PC NIC card has not previously been set do so now using the following proce dure otherwise skip to Step 3 2 1 From Windows Control Panel select Network icon 2 2 Select TCP IP properties of your LAN card The window shown in Figure A 1 will appear 2 3 Selec...

Страница 116: ...8 Reply from 192 168 0 3 bytes 32 time 10ms TTL 128 Reply from 192 168 0 3 bytes 32 time 10ms TTL 128 Ping statistics for 192 168 0 3 Packets Sent 4 Received 4 Lost 0 0 loss Approximate round trip times I milli seconds Minimum 0ms Maximum 0ms Average 0ms Your network LAN card is now set up 3 On the RM SSPA unit front panel select sequentially Main Menu 2 Com Setup 5 IPSetup 2 LocalIP and then sele...

Страница 117: ... bytes 32 time 10ms TTL 128 Reply from 192 168 0 0 bytes 32 time 10ms TTL 128 Reply from 192 168 0 0 bytes 32 time 10ms TTL 128 Ping statistics for 192 168 0 3 Packets Sent 4 Received 4 Lost 0 0 loss Approximate round trip times I milli seconds Minimum 0ms Maximum 0ms Average 0ms 5 Run the Teledyne Paradise Datacom Universal M C package on the host PC to check all M C functions Refer to Appendix C...

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Страница 119: ... stripe e g white orange is a cable with a white background and an orange stripe The straight through and crossover patch cables are terminated with CAT 5 RJ 45 modular plugs RJ 45 plugs are similar to those you ll see on the end of your tele phone cable except they have eight versus four or six contacts on the end of the plug and they are about twice as big Make sure they are rated for CAT 5 wiri...

Страница 120: ...tic fields are opposite and have a tendency to cancel the effect of each other This reduces the line s impact on the other pair of wires and the rest of the world The second and the primary means of reducing cross talk between the pairs in the ca ble is the double helix configuration produced by twisting the wires together This con figuration produces symmetrical identical noise signals in each wi...

Страница 121: ...cable ends in the preceding diagrams they correspond to the 568A and 568B RJ 45 jacks and are shown in Figure B 6 Figure B 4 Ethernet Wire Color Code Standards Figure B 5 Wiring Using 568A Color Codes Figure B 6 Wiring Using 568A and 568B Color Codes 568A CABLE END 568B CABLE END ...

Страница 122: ...ble will work in a 568A network Here are some essential cabling rules 1 Try to avoid running cables parallel to power cables 2 Do not bend cables to less than four times the diameter of the cable 3 If you bundle a group of cables together with cable ties zip ties do not over cinch them It s okay to snug them together firmly but don t tighten them so much that you deform the cables 4 Keep cables aw...

Страница 123: ... the appropriate boxes in the New Rackmount SSPA dialog A Unit ID is not required although it is recommended If a Unit ID isn t entered the Unit ID will be assigned by the M C To add a unit connected to a serial port you must supply a Port and a Baud Rate To add a unit connected via UDP TCP IP you must supply either a Hostname or an IP Address Specify the Unit s Unique Address in the Amplifier Add...

Страница 124: ... reflects the current conditions or state of the Rack Mount SSPA In addition the status screen allows for Mute Unmute of the carrier and manual adjustment of the on board Attenuator for gain control The second screen is the faults screen shown in Figure C 3 It shows the user the status of all faults on board the Rack Mount SSPA Each RF Module in the SSPA is monitored for faults in addition to the ...

Страница 125: ...eset for it to use the new IP Address Until the SSPA is reset it will use the old IP Address The Amplifier Local Port is the port that the SSPA listens to for UDP requests The SSPA also answers requests using the same port If the Amplifier Local Port is changed the SSPA must be reset The Gateway Address and Subnet Mask are standard settings for TCPI IP communications If either of these settings is...

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Страница 127: ...er attenuation level to 10 dB 3 Apply a CW RF signal to the amplifier 4 Use a power meter to measure the output power of the amplifier 5 Adjust the RF input level until the desired output power level is achieved 6 Follow the steps listed above to activate the ALC control The ALC will take over the control of the output level and maintain the RF output level set point The ALC has the ability to acc...

Страница 128: ...thin 2 dBm range and then perform fine adjustment to get the output signal to within a 0 3 dBm range from the set value For changes less than 5 dBm the ALC circuit will not use coarse adjustment at all Overall time lag will be cumulative from the coarse and fine adjustment procedures Coarse adjustment speed is approximately 5 dBm sec Fine adjustment speed is approximately 0 5 dBm sec ...

Страница 129: ... HPA_2000 Series of Teledyne Paradise Datacom 4RU Rack Mount Solid State Power Amplifiers This package consists of Specification Sheet 201355 check our web site http www paradisedata com for the most recent version of this document Outline Drawing specific to your unit Block Diagram specific to your unit and Schematic specific to your unit ...

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