HP 44476A User's Manual
Contents
1. HP 3488A Switch Control Unit HP 44476A B Microwave Switch Module Operating Programming and Configuration Manual WA erciano Copyright Hewlett Packard Company 1986 Manual Part Number 44476 9000 Printed NOVEMBER 1986 Edition Microfiche Part Number 44476 99001 Printed in USA Eli86 RESTRICTED RIGHTS LEGEND Use duplication or disclosure by the Government is subject to restrictions as set forth in subdivision b 3 ii of the Rights in Technical Data and Computer Software clause at 52 227 7013 Hewlett Packard Company 3000 Hanover Street Palo Alto California 94304 Y HEWLETT PACKARD Herstellerbescheinigung Hiermit wird bescheinigt da8 das Ger t System CP AAA TCAIB II in bereinstimmung mit den Bestimmungen von Postverf gung 1046 84 funkentst rt ist Der Deutschen Bundespost wurde das Inverkehrbringen dieses Ger tes Systems angezeigt und die Berechtigung zur Uberpr fung der Serie auf Einhaltung der Bestimmungen einger umt Zusatzinformatian fur Mef und Testger te Werden Me und Testger te mit ungeschirmten Kabeln und oder in offenen MeSaufbauten verwendet so ist vom Betreiber sicherzustellen daf die Funk EntstOrbestimmungen unter Betriebsbedingungen an seiner Grundst cksgrenze eingehalten werden Manufacturer s declaration This is to certify that the equipment IA is in accordance with the Radio Interference Requirements of Directive FITZ 1046 84 The Ger man Bun2. gt x 14 we apa tow ee Be oe bee hk ot A st Lites angkat 7 rete RA res ap RA EE 233 122 BARGE E gt GIES SE SAP este Eh IN eden Dh te gi DO TEIAS oE yes Aussi x Ate an A O ae ASA A pa E Klasse ALANS A re Pre ni Aes ION PR ie RDA Sere eee Le Ma Dat at Microwave Switch Module sie aig Z z EN RS EE aras A ng PAS En A Y IAS ga E ps pees aa 1 15 feo kee Rede 2434521 ered gt Se 735522 E EER ee Lain sls ees gt x ARS Sik SEIS PICOS ANIA OLS see FINO ST Soe RESITA LOMA SWITCH HP 44476A tos TATI AT are itr eel Bie a ZA segs AE q AAR MEGA Wap tk RES READ gt KA LLED aru o 23 3319 CAILTE e hee COAXIAL SAITOH DE 3 Gr BGN TNA ya Quix inet DE WEMLETT FACE ENG Fb ot ae Nas Y a Dent tre arity NA aga endi IKA IANG ve ELSI TEES SERS Selene ees Sst 34i t BGP eee Stee sande ease none Pa 3 31 Sees steely apenas Ie ete yeh tse svg TAH ete OPA TS Se snc tek uma AS AA AERP RAE wane anga Syke eae Seen FPO eto PAYANT Sg ES Eo irnos FLA AA x Put ee SRR ES HA RES 34794 aa eens Css See Anar HP 444765 e e 4 eh BA AAN
3. 06 are valid This summary of errors is tabulated in Table 2 ERROR SUMMARY NO OF VALID MODULE CHANNELS CHANNEL NOS CLOSE S04 CLOSE 09 MEN 00 02 LOGIC ERROR LOGIC ERROR Notes 1 CLOSE S04 CLOSE lt slot gt 04 2 Execute CLOSE S04 and CLOSE S09 separately Table 2 CARD TYPE Command Error Summary Microwave Switch Module 42 Y VIEW Command You use the VIEW command to look at the state open or closed of a particular channel The HP 3488A responds with the string OPEN 1 if the specified channel is open If the specified channel is closed the HP 3488A responds with the string CLOSED 0 In the HP 3488A display the channel address is displayed followed by a colon and the appropriate string If VIEW is sent via the HP IB the controller must read the HP 3488A response 1 or 0 as done for CPAIR CARD MON Command The CARD MON command card monitor is used to display the state of all the channels on a module at once You specify the slot 1 5 of the module you want to monitor Specifying slot 0 in the command will cancel the card monitor function Specifying a negative slot number causes the HP 3488A to go into the MONITOR TRACKING mode In this mode the HP 3488A display shows the slot of the negative slot number ignoring the negative sign but tracks to subsequent slots where channels are opened or closed When used to monitor the HP 44476 modules the display shows the slot number a cha
4. and 09 the module is an HP 44476 you cannot determine whether it is A or B without looking at the module s panel If channel 04 closes and you get a logic error on channel 09 the module is an HP 44477A If both chan neis close no logic error the module is an HP 44471A Syntax CARD TYPE lt s lot gt HP 1B Syntax CTYPE lt slot gt 4 CARD PAIR CARD MON HP IB Interface Commands TRIGGER CLEAR You use the CARD PAIR command to pair two modules of the same type e g two HP 44471As You can pair HP 44476s and 44477s with 44471s This com mand assigns both modules to both slot numbers and a command to close or open a channel on one module closes or opens the same channel on the other module Commands used with CARD PAIR are OPEN CLOSE CARD RESET CHAN and STEP You can also use paired channels in a SCAN LIST Executing a CARD PAIR command cancels any previous CARD PAIR command that involved either of the two slots listed This allows you to have a maximum of two sets of card pairs at one time Syntax CARD PAIR lt slot gt lt slot gt HP IB Syntax CPAIR lt slot gt lt slot gt The CARD MON command card monitor is used to look at the state of a module in the slot you specify Specifying slot 0 will cause the monitor mode to be cancelled If a negative number is used the HP 3488A goes to the MONITOR TRACKING mode First the slot number ignoring the negative sign is monitored The m
5. gt or lt ch address gt lt ch address gt STEP is used to open the previously closed channel and close the next channel in the scan list If STEP is executed and no scan list exists the HP 3488A will generate an error The HP 3488A uses a pointer to keep track of which channel in the scan list is currently closed When STEP is executed that channel is opened and the next item in the list is checked If the next item in the list is a relay or Digital I O line that channel is closed If the next item in the list is a stored setup that setup is recalled Channels that are closed as part of a stored setup will remain closed that is they are not opened by the next execution of the STEP command unless the next item is the recall of a stored setup Syntax STEP Microwave Switch Module 17 CHAN CARD RESET CARD TYPE You use CHAN to open the last channel closed by either STEP or CHAN the most recent command and close the specified channel If no channel is specified with CHAN the HP 3488A will respond with the last channel closed by either STEP or CHAN If no channel has been closed since the last reset then CHAN returns the number 0 If a scan list is in effect when CHAN is executed the HP 3488A will search through the list and position the scan list pointer to the channel specified by CHAN If CHAN specifies a channel that is not in the scan list and the STEP is executed the HP 3488A will open the channel closed by CH
6. or Series 300 computers includes computer output execution time and time for HP 3488A to execute command default conditions or to release interface maximum speed conditions with overlap on it is important to note that the times listed below in the tables are computer HP 3488A HP 44476A or HP 44476B command execution times The actual time re quired for any of the HP 3331XX switches to change state OPEN to CLOSE or from CLOSE to OPEN takes a maximum time of 30 milliseconds in addition to the times in the table l HP Series 300 Controller HP podel Maximum Controller Default Speed Default Switch Operation Turn on Overlap on Turn on Command CLOSE 101 or OPEN 101 CLOSE 101 201 or OPEN 101 201 OPEN 102 CLOSE 203 HP 3488 Opt HP Module 016 44476A 018 444768 016 44476A 018 44476B Conditions Conditions Conditions 016 444 764 018 44476B CLOSE 100 203 301 016 44476A 402 501 or OPEN 100 018 44476B 203 301 402 301 CLOSE 016 44476A lali channels on module 018 44476B CHAN 102 or STEP 016 44476A used with scan iist 018 44476B CARD RESET 016 44476A 018 44476B RECALL 016 444 76A 018 44476B Maximum speed conditions overlap mode on Time listed is time from beginning of execution of output command by controller until HP 3488A releases interface for one OUTPUT statement in Overlap mode HP 3488A may release interface before complete execution of command See Product No
7. AN and then go to the beginning of the scan list Syntax CHAN lt ch address gt CARD RESET is used to set all channels on the HP 44476A B to their power on state You specify the slot number for the card you want to reset Syntax CARD RESET lt slot gt lt slot gt HP IB Syntax CRESET lt slot gt lt slot gt The CARD TYPE command is used to query an HP 3488A slot and determine what type of module is intalled in that slot The HP 3488A responds to this command by displaying the slot number module name and module model num ber The response must be read over the HP IB if the HP IB CTYPE command was given Possible responses are shown in the table below You use the lt key to shift the display and see the model number Microwave Switch Module 18 CARD TYPE MODEL NO DISPLAY Slot is empty NO CARD 00000 Relay Multiplexer Module 444704 RELAY MUX 44470 _ General Purpose Relay Module 44471A GP RELAY 44471 VHF Switch Module 44472 VHF SW 44472 Matrix Module 444734 MATRIX SW 44473 Digital 1 0 Module 444744 DIGITAL IO 44474 Breadboard Module 44473A BREADBOARD 44475 Microwave Switch Module 44476A 8 GP RELAY 44471 Form C Relay Module 444774 GP RELAY 4447 The HP 44476A B and the 44477A modules also display GP RELAY 44471 To determine if the module is an HP 44471 44476 or 44477 try to close channel 04 and channel 09 with separate commands If you get a logic error on chan nels 04
8. HP 3488A Operating Programming and Configuration Manual CLOSE OPEN SCAN LIST STEP The CLOSE command is used to close the normally open contact connect port 1 to the common port after opening the normally closed contact port 2 The CLOSE command does not open any channels that were previously closed You can close more than one channel with the same CLOSE command by separating the channel addresses with a comma channels are closed in the order listed in the command Syntax CLOSE lt ch address gt lt ch address gt lt ch address gt You use the OPEN command to disconnect the normally open contact from the common port and connect the normally closed contact to the common port If more than one channel is specified in the OPEN list channels are opened in the order listed Use the CARD RESET command to open all channels on a module Syntax OPEN lt chk address gt lt ch address gt lt ch address gt SCAN LIST allows you to specify a sequence of channels to be scanned The se quence is specified as a list of up to 85 channel addresses or items relays Digital I O lines or stored setups separated by commas Contiguous channels may be specified by entering the first and last channel addresses separated by a hyphen The STEP command is used to sequentially close channels in the list Syntax SCAN LIST lt ch address gt or lt ch address gt lt ch address gt HP IB Syntax SLIST lt ch address
9. S RAIET La AI A 2771512 SATA 4 3 EE eae ber ears e 2 e 177 AREA RAR Tsee Pata es bree Baas EE REPA AS Po 52 h Figure 3 HP 44476A B Microwave Switch Modules lt sz gt A y ES a3 2 3 J PPLA 3 ers es A 34 24 cee ES ACA o f oe 5 crates eG Z SAR 4 MOBI aaa Et A a esis SS eS y Wav RESITA Y Aia iria 3 Nee E wes AyrA AE z lt ys ae 2 es 5 2222222 PS lt wee nee SRS Z ee Channels A channel refers to one of the three HP 33311B microwave switches mounted on the HP 44476A or one of the two you supply on the HP 44476B The channels are numbered 00 01 and 02 on the A version and 00 and 01 on the B version The outer panel of each module indicates the channel number of each switch You switch a channel by using a complete channel address The channel address is determined by which slot the HP 44476 is installed in Channel addresses are three digit numbers of the form snn where the first number specifies the particular slot 1 through 5 of the 3488A where the HP 44476 is installed The last two digits srt 00 01 or 02 are the channel number For example channel address 102 means slot 1 chan nel 02 The following table shows all possible channel addresses Channel address if HP 44476 module i
10. SMA Single pole double throw break before make Latching DC O 2 GHz lt 1 15 DC 12 4 GHz lt 1 25 18 0 GHz lt 1 40 DC 2GHz lt 1 15 DC 12 4 GHZ lt 1 25 50 Load DC 18 9 GHz lt 1 40 C watt average 100 watts peak Also less than 7 Vdc Repeatability Typical 0 03 d3 after 1 000 000 switchings HP 44476B Specifications HP 3488A Option 018 The HP 44476B Switching Speeds are identical to those of the HP 444764 The HP 44476B Specifications are a function of which HP microwave switch is installed into the module For more information on the switch characteristics refer to the HP 33311B HP 33311C HP 33312B HP 33313B Data Sheets HP Part Numbers 5952 8153 5952 8171 and 5954 6384 respectively Environmental Operating 0 55 C 32 130 F Storage 40 75 C 40 165 F Humidity 95 0 40 C 32 104 F Weight kg lbs kg i lbs Maximum Total General Relays All channels use magnetically latching relays When power is removed from the HP 34884 all channels remain in their previously programmed state Power on or RESET com mand opens all channels HP 44476A Average Switch Life 10 operations Connectors HP 44476A B Microwave Switch SMA Connector Microwave Switch Moduie 20 Switching Speeds Time for the command OUTPUT 709 Switch Operation Command to be executed fin msec via HP 18 using HP Mode 83
11. after a calibration Transfer switching can be accomplished with two 3 port microwave switches supplied on the HP 44476A or one 4 or 5 port microwave switch you supply on the HP 44476B Figure 9 shows a transfer switching example using both the HP 44476A and 44476B modules Refer to Figure 1 far the simplified schematic of the HP 44476A The 4 port example of Figure 9 shows the equivalent circuit of the HP 33312B being used as a transfer switch The HP 33312B s internal 50 ohm load can terminate the device under test when the device is out of the signal path The 5 port HP 33313B can be used in this application mounted on the HP 44476B where the fifth port is used to ex ternally terminate the DUT with a resistor other than 50 ohms HP 444764 PANEL REFER TO FIGURE 1 FOR SIMPLIFIED SCHEMA Fit x aa i pe E HP 4447594 MODULE yaaa SOLENOID COMMON SOLENOID DRIVE PIN et DRIVE PIN DRIVE PIN e2 AN ny Non ds z i HP 333128 OPT 215 4 PORT MICROWAVE SW HP 444768 PANEL PORT DESIGNATIONS 444740P F 4 Figure 9 Transfer Switch Application HP 444754 TRANSFER SWITCH EXAMPLE HP 44475B8 333128 TRANSFER SWITCH EXAMPLE Microwave Switch Module 15 Matrix Application Figure 10 shows a 3 X 4 matrix application using two HP 44476A modules and three HP 44476B modules that have HP 33312B Option 011 4 port microwave switches installed by the user Figure 10 is illustrated with connections between r
12. an contact the orange wire routed to ground through the drive relay and short the 5V power supply This causes the HP 3488A to reset all modules also reset Microwave Switch Module Y SIDE VIEW DRIVE JUMPER PLUG Z TOP VIEW Figure 5 Drive Jumper Orientation LAY DRIVE JUMPERS M2 5 X 18 FLAT AGAINST PC BOARD PANHEAD SCREWS DISTANCE MOUNTS BE TWEEN MI CROWAVE HOLES em Swi TOR CAN 3E USED WITH SONMHF Swi TCs HP SIS11B or HEIL RE HPSS 1G MOUNTING AREA y 16 42 D 14 1 mm H ir ot J ALL MOUNTING HOLES THREADED FOR M2 5 SCREWS KANAN FS Figure 6 Mounting the Microwave Switch Microwave Switch Module 8 Using the HP 44476 This section provides you information on how to close and open channels what the power on state of the module is and what the reset state of the module is A full description of the commands used in this section can be found in the Command Summary section along with the syntax for each command ACIS POSSIBLE OPERATOR INJURY The HP 44476A HP 34884 Option 016 and the HP 44476B HP 34884 Option 018 contain latching drive relays HP 3331X Microwave Switches also have latching solenoids The state of the drive relays and HP 33311B Microwave Switches on the HP 444764 can only be altered by program control In case of a power or equipment failure the relays will remain in whatever state they were last progra
13. d specifications at the time of shipment from the factory Hewlett Packard further certifies that its calibration measurements are traceable to the National Institute of Standards and Technologies to the extent allowed by the the Institute s calibration facility and to the calibration facilities of other International Standards Organization members WARRANTY This Hewlett Packard instrument product is warranted against defects in materials and workmanship for a period of one year from date of shipment except that in the case of certain components listed in Section I of this manual the warranty shall be for the specified period During the warranty period Hewlett Packard Company will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by hp Buyer shall prepay shipping charges to hp and hp shall pay shipping charges to return the product to Buyer However Buyer shall pay all shipping charges duties and taxes for products returned to hp from another country Duration and conditions of warranty for this instrument may be superceded when the instrument is integrated into becomes a part of other hp instrument products Hewlett Packard warrants that its software and firmware designated by hp for use with an instrument will execute its programming instructions when properly installed on that instrument Hewle
14. despost was notified that this equioment was put into circulation the right to check the series for compliance with the requirements was granted Additional Information for Test and Measurement Equipment if Test and Measurement Equipment is operated with unscreened cables and or used for measurements on open set ups the user has to assure that under operating conditions the Radio Interference Limits are still met at the border of his premises NOTICE The information contained in this document is subject to change without notice HEWLETT PACKARD MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL IN CLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Hewlett Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished by Hewlett Packard va v RE mr a This document contains proprietary information which is protected by copyright All rights are reserved No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company eee Ur HEWLETT PACKARD CERTIFICATION Hewlett Packard Company certifies that this product met its publishe
15. ent unless another person capable of rendering first aid and resuscita tion is present DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT Because of the danger of introducing additional hazards do not install substitute parts or perform any unauthorized modification to the instrument Return the instrument to a Hewlett Packard Sales and Service Office for service and repair to ensure that safety features are maintained DO NOT OPERATE A DAMAGED INSTRUMENT Whenever it is possible that the safety protection features built into this instrument have been impaired either through physical damage excessive moisture or any other reason REMOVE POWER and do not use the in strument until safe operation can be verified by service trained personnel If necessary return the instrument to a Hewlett Packard Sales and Service Office for service and repair to ensure that safety features are maintained DANGEROUS PROCEDURE WARNINGS Warnings such as the example below precede potentially dangerous procedures throughout this manual In structions contained in the warnings must be followed WARNING Dangerous voltages capable of causing death are present in this instrument Use extreme caution when handling testing and adjusting Kip HEWLETT PACKARD Operating and Safety Symbols LINE 7 La Py R lt 4 a ATTENTION Static Smnslt ve Davices NOTE CAUTION WARNING Symbols Used On Products And In Manuals AC line volta
16. g of the scan list Pairing Cards You use the CARD PAIR to pair two HP 44476 modules together Additionally you can pair the HP 44476A and B modules with the HP 44471 A General Purpose Relay Module or the HP 44477A Form C Relay Module Any combination of HP 44471A 44476A 44476B and 44477A can be paired When different module types are paired you must be aware of which channels are present on each module because this command causes identically numbered channels in each module to operate together Executing a command to close or open one channel causes the same channel on the paired module to close or open Additionally you can use paired slots in a scan list Commands used with the CARD PAIR function are OPEN CLOSE CARD RESET CHAN and STEP Executing a CARD PAIR command cancels a CARD PAIR command that previously paired one of the slots specified by the new CARD PAIR command For example if slots and 2 are paired pairing slots 2 and 4 cancels the slot 1 and 2 pair You can have more than one pair of slots slot paired with slot 2 and slot 3 paired with slot 4 establishes two pairs The following example closes a pair of channels 10 OUTPUT 709 CPAIR 1 3 tPairs slots 1 and 3 CPAIR CARD PAIR 20 OUTPUT 709 CLOSE 1901 ICloses channels 101 and 30 simultaneously Microwave Switch Module 11 Executing the CARD PAIR command without specifying slot numbers allows you to determine if any slots are paired together Four number
17. ge input receptacle Instruction manual symbol affixed to product Warns and cautions the user to refer to respective instruction manual procedures to avoid personal injury or possible damage to the product Indicates dangerous voltage terminals connected to interior voltage exceeding 1000 volts Protective conductor terminal Indicates the field wiring terminal that must be connected to earth ground before operating equipment protects against electrical shock in case of fault Clean ground low noise Indicates terminal that must be connected to earth ground before operating equipment for single common connections and protection against electrical shock in case of fault Frame or chassis ground Indicates equipment chassis ground terminal normally connects to equipment frame and all metal parts Affixed to product containing static sensitive devices use anti static handling procedures to prevent electrostatic discharge damage to components NOTE Calls attention to a procedure practice or condition that requires special attention by the reader CAUTION Calls attention to a procedure practice or condition that could possibly cause damage to equipment or permanent loss of data WARNING Calls attention to a procedure practice or condition that could possibly cause bodily injury or death Contents HP 44476A B Microwave Switch Module TT ONCENG e A k uU QU Ta a E A ds Da anga A l Module Deset
18. ic error and will not cause a change in the module Scanning Channels You can declare a sequence of channels called a scan list and step through these channels break before make The SCAN LIST and STEP commands are used to establish and execute a scan through the channels in the order listed in the scan list When the last channel in the list is closed the next STEP command begins scan ning the scan list again The following example scans through channels 500 501 502 and 501 two times The scan will be channels 500 501 502 501 500 501 502 501 10 OUTPUT 709 SLIST 500 502 501 ISLIST SCAN LIST 20 FOR I 1 TO 8 30 OUTPUT 709 STEP 40 NEXT 1 You can use the CHAN command to open the last channel closed by a STEP command or another CHAN command before closing the channel specified in the CHAN statement If no channel is specified in the CHAN command the HP 3488A will respond with the last channel closed by either STEP or CHAN If no channel has been closed since the last reset then CHAN returns the number 0 If a scan list is in effect and CHAN is executed specifying a channel within the list the HP 3488A will search through the list and position the scan l st pointer to the channel specified The next STEP command will ad vance the scan from the channel specified by CHAN If CHAN closes a channel that is not in the scan list and STEP is executed the HP 3488A will open the channel closed by CHAN and then go to the beginnin
19. ics for 50 ohm transmission systems operating from dc to 18 GHz The HP 444764 is Option 016 for the HP 3488A Switch Control Unit e The HP 44476B is like the A version but does not have coaxial switches installed The module panel has two 53 8 X 9 6 mm cutouts for multi port coaxial switches with mounting holes that allow you to install two 3 4 or 5 port 5V coaxial switches The HP 44476B is Option 018 for the HP 3488A Switch Control Unit Module Description HP 44476A Description The HP 44476A module contains three HP 33311B Option 011 Microwave Switches designated as channels 00 Ol and 02 See Figure 1 These switches have the following features Broad bandwidth dc 18 GHz useable to 24 GHz High isolation gt 90 dB to 18 GHz Excellent repeatibility typically 0 03 dB after 1 000 000 switchings Internal 50 ohm terminations e o The HP 3331 1B Option 011 allows 5V coil voltage drive voltage operation instead of the standard 24 V This is necessary since the HP 44476 only provides 5V for driving microwave switches Switch operation is controlled by form C relays K901 K902 and K903 The HP 33311B is a break before make switch controlled by a latching solenoid Once switched coil voltage can be removed and the switch remains in the switched position Internal coil contacts open and remove coil voltage after a switching operation to minimize the amount of heat dissipated near the switch contacts HP 33311B Pi
20. ipti6n y Z 7 aaa ka a e aa Wan WE e Ae BS We OR E 2 3 I HP 44476A Description uy ey a ee teh ak HP 335118 Pivot Armature gt o cs a AA EO OK ea pa Re we a a l HP 44476B Description Ieee aa Wei oh S Ses RNA a E OLS res A dee ete te h S 3 Channo a ae iw is SUS See ee ey A AE BE AAA SAA Se Q ee A e Ae q 5 Internal 45V Power Supply lt lt od w yp wy Ge ee Be ee k OUO SUR S U TE tdo 5 Installing the HPE AAA O o w L ele ek SS ee I ee AA ee ew 6 HP 44476B Configurationy cios essa a k se ez e ae ez ee Awe v 7 RISING IheriP444762 aa dl ae ee wu os ein ALE Oe e oe ew ew ee os ee eee 3 9 PAPE COMAS a na a a EA me BG a a SN N NUS SCD OQ A OUR ee 9 Power On and Reset States tt vs sz a e a va e v a e r e e e s e e 9 Power ranore Stale co ee a ce oe Ra Ee AA A Q d 10 STE Cannes soe We usq sk a Sw a a a a ce A a Ge da 10 Closing Channeli de ake EG Ade hp ae ES ee Bh ra S 2 Ee ee BENG 10 Open ME C Hannelie sr a ad Ss a Be at i ANA Ee Go 10 Scanning Channels O AA GA Ga e anga a eS 11 PATAS CAROS aci boZ pokok o e EE A nao e NA amp ed 11 Ote CONS atado diia e ias a A Ge amp a E RR SN CAT p Jp se a 12 Card Type Command ml e A a a is are dt de ewe 12 View COMMANGS a a el E a ad A S a ee aos oe So ee ke eS Q DAY 13 Card Monitor Contan e g a WG Be Baw 3 eH ed Mo A Go Ee ee is 13 Application Examples go 7 A E A A u a S X oe St he S 14 Ge
21. ive jumpers W1 and W2 The following procedure gives you instructions for orienting and connecting the drive jumpers to your microwave switches and then mounting these switches on the HP 44476B module L Orient the drive jumpers WI and W2 with the corresponding microwave switch as shown in Figure 5 This orientation will make the switch operation agree with the silkscreen on the module panel Solder the drive jumpers to your microwave switches 2 Figure 6 shows an HP 33313B Option 011 5 port switch mounted on the module Two panhead M25 x 18 mm long screws through the switch and into the module panel mount the switch The tapped holes in the panel accomodate HP 3331X type microwave switches The illustrated portion of Figure 6 identifies which mounting holes go with which type of microwave switch Also shown are the maximum switch dimensions that can be accomodated by the HP 44476B if non HP switches are used 3 Plug the drive jumpers into the module connectors do not install unused jumpers The channel number is silkscreened on the module PC board next to the connector The drive jumper plug is keyed to fit into the module connector one way only After drive jumpers are installed lay them flat against the PC board so they stay beneath the component side shield when installed See Figures 5 and 6 Do not leave an unused drive jumper plugged into the module during operation If left in stalled the yellow wire connected to the 5Y supply c
22. microwave switches on HP IB Hewlett Packard Interface Bus is Hewlett Packard s implementation of IEEE Standard 488 1978 and ANSI MC1 1 Microwave Switch Module 9 299927 the HP 44476A so that port 2 is connected to the common port and port is connected to a 50 ohm termination to ground For microwave switches you supply for the HP 44476B you must determine the state in which the form C drive relays set these switches This state is called the power on state and can be reached by pressing the 3488A RESET button or giving a CARD RESET command to the slot in which you have the module installed Power Failure State If a power failure occurs the latching form C drive relays and microwave switches retain the state they were last programmed to See the WARNING which follows the heading Using the HP 44476 When power is reinstated the HP 3488A resets all modules and the relays and microwave switches on the HP 44476A are set to the power on state Using Channels The HP 44476 microwave switches are controlled by the HP 3488A CLOSE OPEN CARD RESET CHAN and STEP commands In the following paragraphs you will find example programs or program segments containing these commands A description of the effect these commands have on the switches is also given When using channels all switching activity must be directed to channels 00 01 and 02 only Attempting to close a channel greater than 02 will result in either a logic or execution er
23. mmed to Any application requiring a failsafe method of insuring that the circuits under control are in a known state after a power or equipment failure must be provided for by the installer When power is reinstated relays go to the power on stale Any reference to port 1 or port 2 of the HP 44476 modules refers to the ports as designated on the module panel The microwave switch SMA connectors protrude through this panel The examples used in this manual are intended for Hewlett Packard Series 80 Series 200 or Series 300 computers using HP BASIC language They assume an H P 1B interface select code of 7 and a device address of 09 factory address setting resulting in a combined HP 1B address of 709 We recommend you retain this address to simplify programming HP IB Commands Some HP 3488A commands are abbreviated when used as HP IB commands The Command Summary sec tion of this manual lists the HP 3488A syntax for each command For those commands where the HP IB language syntax is different a line labeled HP IB Syntax follows the HP 3488A syntax line showing the dif ference Complete information is contained in the Command Directory section of the HP 3488A Operating Programming and Configuration Manual Power On and Reset States When you apply power to the HP 3488A the form C drive relays on the HP 44476 have their normally open NO contacts open and normally closed NC contacts closed These relays drive the
24. n manufacture and intended use of the instrument Hewlett Packard Com pany assumes no liability for the customer s failure to comply with these requirements This is a Safety Class 1 instrument GROUND THE INSTRUMENT To minimize shock hazard the instrument chassis and cabinet must be connected to an electrical ground The instrument is equipped with a three conductor ac power cable The power cable must either be plugged into an approved three contact electrical outlet or used with a three contact to two contact adapter with the grounding wire green firmly connected to an electrical ground safety ground at the power outlet The power jack and mating plug of the power cable meet International Electrotechnical Commission IEC safety standards DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE Do not operate the instrument in the presence of flammable gases or fumes Operation of any electrical instru ment in such an environment constitutes a definite safety hazard KEEP AWAY FROM LIVE CIRCUITS Operating personnel must not remove instrument covers Component replacement and internal adjustments must be made by qualified maintenance personnel Do not replace components with power cable connected Under certain conditions dangerous voltages may exist even with the power cable removed To avoid injuries always disconnect power and discharge circuits before touching them DO NOT SERVICE OR ADJUST ALONE Do not attempt internal service or adjustm
25. neral Purpose Switch Application 0 0 0 0 00 00 eee e e ie eek a 14 Transfer Switch Application 15 Matrix Application J T v a a av e e a au au cue OK es Ge a a a s 16 Command Summa 17 ROSE bv de ire ow eB ss oe 2 a ke ee Ge Ge ee ne Ae Se BA 3 S SD ap Sy IS 17 OPEN a daa dd a Qui yuna SS us A eee A X G 3 s 17 A A EEN Be ea 17 PIEP PS E As S 2 ete un RA 17 CHAN 23 au r Sus 2 2 s a ces anga id ee Na 320 nin AS AE AA 1 18 CARD REESE DL x 40d SE 3 de 3 329 E a a an WI GRR a Bina eo ee B ET 18 CARD TYDE S ata 00 E 05 2 cor wh ce cast oh tes aco E EG EN ie S Gt S 2 aba Se Ua 18 CARD PAIR pe WE Pe a ye Fae E AN Ts ah nde ep Ta ec A Z ec O AA s 19 CARD MONITOR crean e Y a He en dle des se es DD ee ea ae 19 HP IB Interface Commands oaoa a ea kk eg 19 IRIGOER rania a u S 2 uQ sh im A a ea er Re She aw dd e SE E Q 19 CDP Tuz Ack 2 ah Se a dae he ens dos a anche ts S ee a de ee a Z nah a 19 x HP 44476A B Microwave Switch Module Introduction This manual contains a description of the HP 44476A and 44476B Microwave Switch Modules You will also find information on configuring installing and programming the modules Additionally there is a section which gives several application examples for the modules Brief definitions of the A and B versions follow e The HP 44476A is a 3 channel single pole double throw coaxial switch module The coaxial switches have excellent electrical characterist
26. nnect the HP 348854 power cord from the back of the in strument prior to installing a module Use anti static procedures when removing configuring and installing a module The module as well as the HP 34884 contains CMOS devices which are susceptible to static discharges To install an HP 44476 Microwave Switch Module in the HP 3488A you perform the following steps l Remove the ac power cord from the HP 3488A before installing the module 2 Face the HP 3488A rear panel toward you 3 Determine the slot in which you will install the module Figure 4 illustrates the five slots that are available for installing modules You can install the HP 44476 in any one of the five slots 4 Hold the module by the metal shields component side down Insert the module into the slot guides and slide the module toward the front of the instrument Push firmly until the assembly snaps into place Secure the module in the slot by tightening the panel s two captive screws To remove the module simply loosen the screws at each end of the panel Then pull the module out of the mainframe by holding on to the captive screws at each end of the panel Microwave Switch Module 6 SLOT 1 SLOT 2 SLOT 3 Figure 4 HP 3488A Rear Panel Available Module Slots HP 44476B Configuration The B version is not supplied with microwave switches You mount user supplied microwave switches on the module after connecting the channel 00 and 01 dr
27. nnel number that is closed and commas that separate channel numbers An open channel is represented by a blank See Figure 7 SLOT CLOSED CHANNELS SLABA BNET Cia CONTROL LINT Figure 7 HP 44476 CARD MON Display The format of the display is where S represents the slot number being monitored and N is a channel number Channel numbers 0 1 and 2 are the only numbers valid for the HP 44476 Whether CARD MON is executed from the HP 3488A front panel or via the HP IB CMON the response is displayed on the HP 3488A front panel Microwave Switch Module 13 Application Examples This section gives several application examples for the HP 44476A B Microwave Switch Module General Purpose Switch Application The HP 44476A is shown in Figure 8 with one channel used to switch separate signal sources for a multiband receiver testing application When not switched to the receiver the unused signal source is terminated in SON by the HP 33311B switch HP 44476A PANEL PORT DESIGNATIONS 2 E js 14 c ON o 333118 jan gt AM 2 c ANN 333118 SIGNAL SOURCE A 33311B TO RECEIVER HP 44476A MODULE 444760P F 8 Figure 8 General Purpose Switch Application Microwave Switch Module 14 Transfer Switch Application Transfer switching is used to insert a component or device in or out of a signal path It can also be used in a test setup to switch in a device under test
28. onitor will display the next slot having an open or close command executed and track any subsequent openings or closures The format of the monitor mode display is S ALN yy 5995 where s represents the slot number being monitored and n is a channel number Only the first three n s are valid for the HP 44476A B channels 00 01 and 02 The HP 44476B does not use one of the three channels since only two micro wave switches can be mounted You can close the unused channel and the card monitor display will show it closed but no channel activity actually takes place Syntax CARD MON lt s ot gt HP IB SYNTAX CMON lt slot gt Only two interface commands other than those listed in the previous summary affect the state of the HP 44476A B channels TRIGGER Group Execute Trigger and CLEAR Device Clear or Selected Device Clear TRIGGER performs the same function as the HP 3488A STEP command it opens the last channel closed and closes the next channel in the scan list The CLEAR command either a Device Clear or Selected Device Clear resets the HP 3488A and all modules installed The HP 44476A B goes to its power on state Microwave Switch Module 19 Specifications HP 44476A Specifications HP 3488A Option 016 Solenoid Internal 50 2 terminations automatic coil Switch Type disconnect Frequency Range DC 18 GHz insertion Loss DC 2 GHz lt 0 25 dB DC 18 GHz lt 0 50 dB DC 18 GHz gt 90 dB SWR 3 mm
29. ow 4 and column A row 3 and column B and row 2 and column C The switches are used to provide the through connection and cross connection functions in the 3 X 4 matrix Typically this matrix could be used to route signals from three different units under test to four different pieces of test equipment such as a power meter spectrum analyzer counter and modulation analyzer The microwave switches internal 50 ohm loads serve to terminate unused rows to prevent resonances SPECTRUM ANALYZER PORT 1 COMMON PORT 2 SOLENOID COMMON SOLENOID DRIVE PIN DRIVE PIN DRIVE PIN DRIVE PIN DRIVE PIN DRIVE PIN 2 i AN da ANG x HP 33312B OPT 211 HP 33311BZC OPT 11 4 PORT MICROWAVE Sw S PORT MICROWAVE SW sen PORT COMMON PORT PORT 2 PORT 1 PORT 2 PORT 3 PORT 4 2 1 5 4 3 2 L i i NO SMA HP 44475A PANEL HP 444768 PANEL PORT DESIGNATIONS PORT DESIGNATIONS RAAT F 16 Figure 10 Matrix Application Microwave Switch Module 16 0 Command Summary This section gives you a summary of the HP 3488A commands that control the HP 44476 Following each command is a description of the command and the command syntax In addition to the HP 3488A com mands the HP IB interface commands TRIGGER and CLEAR affect the HP 44476 and are discussed in this section For more information on commands for these modules refer to the Command Directory section in the
30. ror Closing Channels The CLOSE command is used to close the normally open port and open the normally closed port of one or more channels normally open NO port 1 normally closed NC port 2 Port 2 is normally closed to the common port C For example the following statement closes the NO port and opens the NC port 2 of channels 00 and 01 on a module in slot 5 of the HP 3488A OUTPUT 709 CLOSE 500 501 For the HP 44476A only channels 00 01 and 02 are valid Attempting to close channels 03 09 will result in a logic error since those channels are not present Attempting to close channels greater than 09 will result in an execution error The HP 44476B has the same valid channels as the A version but you may not be using all of the channels depending on how many microwave switches you mount Opening Channels You use an OPEN command to open a previously closed switch This will connect the normally closed port port 2 to the common port port C When more than one channel is specified in the OPEN command channels are opened in the order listed For example the following statement opens channel 00 then channel O in slot 5 OUTPUT 709 OPEN 500 5014 Microwave Switch Module 10 If all channels on a module are to be opened you can use the CARD RESET command instead of listing all the channels in an OPEN command Opening channels not present 03 09 with an OPEN command will not result in a log
31. s are returned to the HP 3488A display separated by commas The first two numbers specify the slots of the first pair the last two numbers specify the slots of the last pair A display of 0 0 indicates there is no pair established If the HP IB CPAIR command is executed the HP 3488A loads the response in the output buffer and the sys tem controller must retrieve the information as shown in the following example 10 OUTPUT 709 CPAIR 20 ENTER 709 AS 30 DISP AS Controller displays active pairs Other Commands You can use three commands to query the HP 44476 to determine card type and to determine status of the channels These commands are CARD TYPE VIEW and CARD MON CARD TYPE Command This command causes the HP 3488A to display the slot number module name and model number of the module installed in the slot specified The HP 44476 is an exception it will not display 44476 but will respond with GP RELAY 44471 since the HP 44471 relay drive circuit is used in the HP 44476 and HP 44477A To determine if the module is truly an HP 44471 try to close channels 04 and 09 with separate CLOSE commands If an HP 44471 is present both channels 04 and 09 will close If an HP 44476 is present you will receive a logic error message on the display for both channels since only channels 00 01 or 02 are valid on the microwave switch module If an HP 44477A is present only channel 09 will result in a logic er ror since channels 00 through
32. s in slot number Table 1 Possible Channel Addresses Internal 5V Power Supply The HP 44476B allows you to install your own 5V microwave switches and operate them from the HP 3488A 5V power supply You must consider the switching current requirement of your switches so that the current limit is not exceeded For HP 44476B use the 5V power supply provided for connection to your switches can supply a maximum of 0 5A total all slots and continuously before being current limited The HP 33311B C 33312B and 33313B Option 011 Microwave Switches are controlled by latching solenoids and automatically disconnect from the power supply after a switching operation The 5V power supply current is sufficient to switch the HP latching type microwave switches If non HP switches are used latching types are recommended The total current requirement of switches you use should not exceed the power supply current limit Microwave Switch Module 5 Installing the HP 44476 This section gives you information on how to install the HP 44476 There is no configuration required of the A module prior to installation in the HP 3488A Switch Control Unit The B module requires mounting of your microwave switches and connection of the form C relay drive circuits to these switches before installa tion in the HP 3488A Only qualified service trained personnel should remove configure or instali the HP 44476A B modules Disco
33. scription The HP 44476B differs from the A version in two ways 1 It is not supplied with microwave switches but does have the form C relays You provide your own microwave switches mount them on the assembly and connect one of the module s form C relay drive circuits to each switch 2 Instead of three cutouts the HP 44476B panel has two 538 X 9 6 mm cutouts for HP 33313B Option 011 5 port 5Y microwave switches supplied by the user The panel will also allow mounting of the HP 33311B Option 011 18 GHz 3 port HP 33311C Option 011 26 5 GHz 3 port or HP 33312B Option 011 4 port microwave switches Figure 2 is a simplified schematic of the HP 44476B Figure 3 illustrates both the A and B modules for comparison DRIVE FORM JUMPERS DRIVE RELAYS T a a e a x Wi LK ong i j H l USER de H INSTALLED RELAY 41 CROWAVE CHANNEL 00 K921 s 2 LS gt sete COM I ll i il ii I 3 4 NA c A NANA i y ANG BA Ng A E W2 T A ee pe AA ve K Q oao l i I USER l w i INSTALLED i RELAY 5 i MICROWAVE CHANNEL 81 5 LAA ie e SWITCH COM N H I El i jf f 3 lt tt ORG j y DAH NA tet Ng KEN J e ee E A TA z f CHANNEL 2 AVAILABLE i RELAY NO BUT NOT USED i i i gg ds a Ss 4 Lagi BBY enn TO DRIVE JUMPERS YEL 0906 y VE Figure 2 HP 44476B Simplified Schematic Microwave Switch Module 3 were MS pide and al w
34. te 3488A 1 for more information Overiap mode provides negligible speed improvement for Model 85 controller Maximum Scan Rate Chans sec Using HP 3488A External Increment amp Channel Closed with Opt 014 display off HP 3488A only Option 016 018 Accessory HP 244764 B
35. tt Packard does not warrant that the Operation of the instrument or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifica tions for the product or improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HEWLETT PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES HEWLETT PACKARD SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSE QUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY ASSISTANCE Product maintenance agreements and other customer assistance agreements are available for Hewlett Packard products For any assistance contact your nearest Hewlett Packard Sales and Service Office Addresses are provided at the back of this manual A 3 11 83 HEWLETT A PACKARD SAFETY SUMMARY The following general safety precautions must be observed during all phases of operation service and repair of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of desig
36. vot Armature When a coil is energized and a switching operation occurs a pivot armature in the microwave switch also operates the other set of contacts For example in Figure 1 when a ground is applied to the top switch coil the solenoid connects port 1 to the common port of the channel ports described here are as silkscreened on Microwave Switch Module 1 1 PORT 1 MODULE 2 PORT 2 DRIVE PANEL NO NORMALLY OPEN JUMPERS DESIGNATORS NC NORMALLY CLOSED FORM C C COMMON DRIVE RELAYS CHANNEL 00 CHANNEL Dt Z one NO 5 CHANNEL NC i o2 H U L901 5V ES Ba TO DRIVE JUMPERS YEL x c906 x NOTE TERMINAL DESIGNATIONS INSIDE THE DASHED BOXES REFER TO THE HP333118 ONLY MODULE PANEL DESIGNATORS OUTSIDE THE DASHED BOXES ARE THOSE SILKSCREENED ON THE HP44476A PANEL ANY REFERENCE IN THIS MANUAL TO A PORT REFERS TO THE MODULE PANEL DESIGNATORS 444760P F 1 Figure 1 HP 444764 Simplified Schematic w Microwave Switch Module 2 the module panel and referred to in the Figure 1 note The top coil circuit is then opened due to the a switching operation The pivot armature also operates with the switch operation and disconnects port 2 from 0 the common port of the channel and connects it to a 50 ohm termination At the same time the bottom coil contact is closed making the bottom coil circuit ready for a switch operation in the opposite direction when a ground is applied HP 44476B De
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