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36 Using the RF Multiplexers

Chapter 3

Synchronizing the RF Multiplexer

This section discusses synchronizing the RF Multiplexer module to other
instruments when making measurements. In the following example the RF
Multiplexer switches a signal to be measured by a counter. This program
verifies that switching is complete before the counter begins a
measurement.

This example uses a GPIB select code of 7, primary address of 09, and
secondary address of 06 for the Counter and a GPIB select code of 7,
primary address of 09, and secondary address of 15 for the RF Multiplexer.

10 ! Close channel 01 and request confirmation the channel is closed.

20 OUTPUT 70915;"CLOSE (@101);*OPC?"

25 ENTER 70915;OPC_value

30 !Read confirmation.

35 OUTPUT 70915;"CLOSE? (@101)"

40 ENTER 70915;A

50 !At this point (channel is closed) the measurement can be made.

60 OUTPUT 70906: "MEAS:FREQ?"

70 ENTER 70906:Meas_value

80 END

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Содержание E1472A

Страница 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Страница 2: ...73A 74A 75A 50 Ohm and 75 Ohm RF Multiplexers Expanders User s Manual E1472 90003 Manual Part Number E1472 90003 Printed in U S A E1100 Artisan Technology Group Quality Instrumentation Guaranteed 888...

Страница 3: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 4: ...Using This Chapter 17 Warnings and Cautions 17 Setting the Address Switch 18 Selecting the Interrupt Priority 19 Expanding the RF Multiplexer 20 Selecting the Relay Drive Level 22 Connecting User Inp...

Страница 5: ...ppendix B Register Based Programming 51 About This Appendix 51 Addressing the Registers 51 Reading the Registers 52 Manufacturer ID Register 52 Device Type Register 52 Status Control Register 52 Remot...

Страница 6: ...ANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY OR CONDITION WHETHER WRITTEN OR ORAL IS EXPRESSED OR IMPLIED AND AGILENT SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OR CONDITIONS OF MERCHANTABILITY SATISFA...

Страница 7: ...rt circuited fuse holders Keep away from live circuits Operating personnel must not remove equipment covers or shields Procedures involving the removal of covers or shields are for use by service trai...

Страница 8: ...1000 MHz IEC 61000 4 4 1995 EN 61000 4 4 1995 0 5 kV signal lines 1 kV power lines IEC 61000 4 5 1995 EN 61000 4 5 1995 0 5 kV line line 1 kV line ground IEC 61000 4 6 1996 EN 61000 4 6 1996 3 V 0 15...

Страница 9: ...8 Notes Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 10: ...plexer is a VXIbus C Size register based slave device and can operate in a C size VXIbus mainframe using a command module such as the E1406 For other manufacturers mainframes refer to the applicable m...

Страница 11: ...Ohm and 75 Ohm RF Multiplexer Expander modules switching diagram During power off power on and reset channel 0 is connected to COM on each bank Figure 1 1 RF Multiplexers Expanders Switching Diagram...

Страница 12: ...nks of channels bank 0 through bank 5 to form six 4 1 multiplexers The switching sections of the RF Multiplexer and Expander modules are identical See Figure 1 1 for a simplified switching diagram Ban...

Страница 13: ...onment one or more RF Multiplexers with or without Expanders connected can be defined as a switchbox instrument For a switchbox instrument all RF Multiplexer channels within the instrument can be addr...

Страница 14: ...0 43 or 50 53 Use the form ccmmnn for a single channel ccmmnn ccmmnn for multiple channels RF Multiplexer Card Numbers The RF Multiplexer card number depends on the switchbox configuration single modu...

Страница 15: ...installed connected to the RF Multiplexer RMD 5 RMD 4 internal ribbon connector RF Multiplexer Module but is recommended Logical Address Order is not required Physical placement of the Module in the R...

Страница 16: ...Lists CLOSe 10001 Connect channel 01 to COM 00 on the RF Multiplexer module card 01 CLOSe 10101 20101 Connect channel 01 to COM 00 on the Expander 1 module cards 01 and 02 SCPI Command Format You can...

Страница 17: ...close the channel has not been sent to the switchbox This example uses BASIC as the program language The computer interfaces to the mainframe using GPIB The GPIB interface select code is 7 the primary...

Страница 18: ...modules that may be connected to the RF Multiplexer CHANNEL WIRING INSULATION All channels that have a common connection must be insulated so that the user is protected from electrical shock in the ev...

Страница 19: ...e see the command module user s guide for addressing information Otherwise see Figure 2 1 to change the setting NOTE The address switch selected value must be a multiple of 8 if the module is the firs...

Страница 20: ...rity You can select eight different interrupt priority levels Level 1 is the lowest priority and Level 7 is the highest priority Level X disables the interrupt The module s factory setting is Level 1...

Страница 21: ...shown in Figure 2 3 cross out unused RMD number 4 Connect the 3 1 cables to the Expander modules as follows RMD3 cable to Expander module 01 Bank 3 5 connector RMD2 cable to Expander module 01 Bank 0...

Страница 22: ...ule Connections A2 A3 E1472A or Module 00 E1474A E1475A Module 01 E1473A or RMD1 Shield RMD0 P400 P200 RMD4 A1 A2 E1473A or E1475A Module 02 A1 A2 RMD2 Shield RMD3 Shield RMD5 Artisan Technology Group...

Страница 23: ...ays may be permanently damaged if the incorrect relay drive level is selected Change the relay drive level only when ALL relays used modules 00 AND 01 AND 02 require a 5V or 24V drive level CAUTION PO...

Страница 24: ...3 Chapter 2 Figure 2 4 Relay Drive Level Selection Torx Screws Nuts Connector SMB 24V J400 12V 12V 5V 24V 5V Location Level Drive Relay J200 Artisan Technology Group Quality Instrumentation Guaranteed...

Страница 25: ...high frequency circuits or pulse circuits where a rise fall time is critical Long cables can add delay time which can cause timing problems All test equipment such as counters spectrum analyzers and...

Страница 26: ...racteristic impedance 75 Ohm to minimize reflection loss The 75 Ohm SMB connectors are significantly different than the standard 50 Ohm SMB connectors Carefully plug the connectors in and out to minim...

Страница 27: ...Type N plug is available from Trompeter Electronics1 part number UPL 95 5 The cable used is RG179 Figure 2 7 Connection to Network Analyzer with 75 Ohm S Parameter Test Set 1 Trompter Electronics 3118...

Страница 28: ...used for other devices Figure 2 8 Connection to Network Analyzer with 50 Ohm S Parameter Test Set 8753A NETWORK ANALIZER 50 Ohm to 75 Ohm Minimum Loss Pad 75 ohm Type N HP 1250 1529 Female to Female T...

Страница 29: ...5631 8120 5593 430mm 17 8120 5632 8120 5594 925mm 36 8120 5633 8120 5595 Table 2 2 Straight SMB Female Plug to Straight SMB Female Plug Length 50 Ohm Part Number 75 Ohm Part Number 125mm 5 8120 5091 8...

Страница 30: ...17 8120 5606 8120 5601 925mm 36 8120 5607 8120 5602 Table 2 5 Right Angle SMB Female Plug to Bulkhead mount BNC Female Jack a Length 50 Ohm Part Number 75 Ohm Part Number 125mm 5 8120 5613 8120 5618...

Страница 31: ...male Plug 1250 2377 131 8901 811 13 75 Ohm Type N Jack to 75 Ohm SMB Female Plug N A 134 1069 021 14 75 Ohm Type N Jack to 75 Ohm SMB Male Jack N A 134 1069 031 15 Right Angle Jack Receptacle 1250 233...

Страница 32: ...nnel n0 to COMmon When the RF Multiplexer is powered up or down signals connected to the channel n0 connector will also be connected to the COMmon connector Table 3 1 RF Multiplexer Commands Used in C...

Страница 33: ...s cc card number 01 99 mm module number 00 02 nn channel number 00 03 10 13 20 23 30 33 40 43 50 53 NOTE The following examples are shown using multiple configurations multiple module switchbox and si...

Страница 34: ...on of up to four devices under test DUT to up to four test instruments With this configuration only one channel in bank 0 one row can be connected to one channel in bank 1 one column at a time This ex...

Страница 35: ...5 CLOS 101 SYST ERR 20 ENTER 70915 Err_num 30 IF VAL Err_num 0 THEN 40 PRINT Error Err_num 50 STOP 60 END IF 70 program continues Example Error Checking Using Interrupts The other approach involves th...

Страница 36: ...D 200 210 When an error occurs clear the RF Multiplexer to regain 220 control Execute a Serial Poll to clear the service request 230 bit in the Status Register Read all error messages in the 240 RF Mu...

Страница 37: ...select code of 7 primary address of 09 and secondary address of 06 for the Counter and a GPIB select code of 7 primary address of 09 and secondary address of 15 for the RF Multiplexer 10 Close channe...

Страница 38: ...ions like reset self test status byte query etc Common commands are four or five characters in length always begin with the asterisk character and may include one or more parameters The command keywor...

Страница 39: ...second level command but do not send the preceding implied command In this case the instrument assumes you intend to use the implied command and it responds as if you had sent it Examine the portion o...

Страница 40: ...For example CLOS 101 CLOS 101 SCPI also allows several commands within the same subsystem to be linked with a semicolon For example ROUT CLOS 101 ROUT CLOS 101 or ROUT CLOS 101 CLOS 101 SCPI Command...

Страница 41: ...d is not guaranteed Channel Range The RF Multiplexer will accept and execute channel ranges ccmmnn ccmmnn without generating an error but the result is to close the last channel in each bank within th...

Страница 42: ...el Closure This example closes channels 01 and 02 of a two module switchbox card number 01 module 00 and 01 and queries channel closure Since the channels are programmed to be closed 1 1 is returned C...

Страница 43: ...nd queries channel closure Since the channels are programmed to be closed 0 0 is returned CLOS 10001 10102 Connect channel 01 to COM00 on the RF Multiplexer module 00 and channel 02 to COM00 on the Ex...

Страница 44: ...witchbox Parameters Comments RF Multiplexer Module Description The SYSTem CDEScription number command returns Hex 4 1 75 Ohm RF Mux or Hex 4 1 50 Ohm RF Mux Example Reading the Description of Card 1 M...

Страница 45: ...ted module card in a switchbox to its power on state Parameters Comments RF Multiplexer Module Power On State The power on state is all channels relays open Note that SYSTem CPON ALL and RST connects...

Страница 46: ...rror message in the error queue The error message can be up to 255 characters long Clearing the Error Queue An error number message is removed from the queue each time the SYSTem ERRor command is sent...

Страница 47: ...e between multiple instruments RCL n Recall saved state Recalls previously stored RF Multiplexer configuration n 0 to 9 is the location in memory where the desired previously stored set up is located...

Страница 48: ...ist CLOSe channel_list OPEN channel_list Close Channel s Query Channel s closed Query channel s opened SYSTem ERRor CDEScription number CTYPe number COPTion number CPON number ALL Returns error number...

Страница 49: ...48 RF Multiplexer Command Reference Chapter 4 Notes Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 50: ...z 65 1 3 GHz 50 3 GHz 20 typical 10 MHz 85 100 MHz 75 500 MHz 65 1 3 GHz 45 VSWR 10 MHz 1 05 100 MHz 1 15 500 MHz 1 25 1 3 GHz 1 35 3 GHz 1 5 10 MHz 1 05 100 MHz 1 15 500 MHz 1 25 1 3 GHz 1 35 Risetim...

Страница 51: ...50 RF Multiplexer Specifications Appendix A Notes Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 52: ...witch The register offset for the desired register Example Addressing a Status Control Register This example shows how to address the Status Control Register of an RF Multiplexer module in a C Size VX...

Страница 53: ...egister based device Device Type Register Reading this register returns 0180h if the device is the E1474A RF Multiplexer module with or without Expander module s connected The E1474A E1475A use the sa...

Страница 54: ...to the RMD4 5 connector Returns FF11h if a module is connected and FFFFh if a module is not connected Returns FF00h if E1472A E1473A modules are connected If you are using the E1474A to control additi...

Страница 55: ...on the RF Multiplexer Module All other bits must be set to 0 Only one channel per bank can be closed at a time Any bit pattern not shown in Table B 1 results in the lowest numbered channel being close...

Страница 56: ...d Module 02 ID Returns FFFFh when Expander module number 02 is not connected Returns FF00h when E1473A Expander module number 02 is connected Returns FF11h when E1475A Expander module number 02 is con...

Страница 57: ...COMmon only one channel per bank can be closed at one time All other to 0 Table B 11 Expander Module 02 Banks 0 2 Channel Enable Registers RMD4 b 18h 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Write CH23 C...

Страница 58: ...0 19 RMC30 17 RMC32 15 PWR2 13 RMD3 10 11 RMD3 8 9 RMD3 7 7 RMD3 5 5 PWR2 3 RMD3 2 1 RMD3 0 60 GROUND 58 RMC11 56 RMC13 54 RMD1 11 52 RMD1 9 50 PWR2 48 RMD1 6 46 RMD1 4 44 RMD1 3 42 RMD1 1 40 GROUND...

Страница 59: ...17 19 2 4 8 6 10 12 14 16 18 20 Ch 23 53 Ch 22 52 K9 K8 Ch 20 52 Ch 20 50 Ch 21 51 K7 K5 Ch 10 40 Ch 11 41 K4 Ch 10 40 Ch 12 42 Ch 13 43 K6 Ch 01 31 Ch 00 30 K1 K2 Ch 03 33 Ch 02 32 COM 00 30 K3 15 P1...

Страница 60: ...RMCx2 57 37 17 57 37 17 5 RMCx3 56 36 16 56 36 16 6 PWR2 PWR4 55 35 15 55 35 15 7 RMDx 11 54 34 14 54 34 14 8 RMDx 10 53 33 13 53 33 13 9 RMDx 9 52 32 12 52 32 12 10 RMDx 8 51 31 11 51 31 11 11 PWR2...

Страница 61: ...he driver board to the 5V position see Figure 2 4 NOTE All relays connected through J400 must now be 5 volt relays From the Register maps Channel 01 on RMD2 is Bit 01 To close channel 01 relay K1 Figu...

Страница 62: ...of module in a switchbox that is not supported by the module e g channel 99 of a multiplexer module 2006 Command not supported on this card Sending a command to a module card in a switchbox that is u...

Страница 63: ...62 RF Multiplexer Error Messages Appendix C Notes Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 64: ...relay life follow Relay Load In general higher power switching reduces relay life In addition capacitive inductive loads and high inrush currents for example turning on a lamp or starting a motor redu...

Страница 65: ...age Using this method the contact resistance is measured several 5 10 times and the variance of the measurements is determined An increase in the variance indicates deteriorating performance Number of...

Страница 66: ...ion of conformity 7 definition instrument 12 description general 11 RF multiplexers 10 detecting error conditions 34 Device Type register 52 documentation history 6 E error conditions detecting 34 err...

Страница 67: ...relays end of life determination 63 relay life factors 63 replacement strategy 63 Remote Module ID registers 53 reset conditions 31 restricted rights statement 5 RF multiplexers description 10 ROUTe C...

Страница 68: ...E1472 90003 Manual Part Number E1472 90003 Printed in U S A E1100 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 69: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 70: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

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