Agilent Technologies 87050A Option K22 Multiport Test Set
Agilent Technologies 87050A Option K22 Multiport Test Set User’s and Service Guide Manufacturing Part Number: 87050-90105 Printed in USA: November 2009 Supersede July 2007 © Copyright Agilent Technologies, Inc.
Warranty Statement THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, AGILENT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Safety Notes The following safety notes are used throughout this document. Familiarize yourself with each of these notes and its meaning before performing any of the procedures in this document. WARNING Warning denotes a hazard. It calls attention to a procedure which, if not correctly performed or adhered to, could result in injury or loss of life. Do not proceed beyond a warning note until the indicated conditions are fully understood and met. CAUTION Caution denotes a hazard.
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Contents 87050A Option K22 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Verifying the Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Meeting Electrical and Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents Safety and Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 Before Applying Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 Connector Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
87050A Option K22 User’s and Service Guide 1
87050A Option K22 Description Description The Agilent 87050A Option K22 Multiport Test Set is designed for use with 50 Ω Network Analyzers, such as the Agilent 8719D/ES, 8720D/ES, and 8722D/ES. The test set provides single connection, multiple measurements of multiport devices with up to twelve ports, such as distribution amplifiers, taps, switches and couplers. Throughput is increased by reducing the number of device reconnects the operator must perform. Switching is performed with mechanical switches.
87050A Option K22 Meeting Electrical and Environmental Requirements Meeting Electrical and Environmental Requirements Electrical The line power module on your test set is an autoranging input. This product has an autoranging line voltage input. Be sure the supply voltage is within the specified range. If the ac line voltage does not fall within these ranges, an autotransformer that provides third wire continuity to earth ground should be used.
87050A Option K22 Figure 1 Meeting Electrical and Environmental Requirements Agilent 87050A Option K22 Physical Dimensions Agilent 87050A Option K22 Options UK6 Option UK6 provides a commercial calibration certificate including actual test data. Data includes test results of 115 tests including reflection, transmission, and isolation from A i/p to B i/p to all test ports.
87050A Option K22 Preparations Preparations 1. Ensure that the "Meeting Electrical and Environmental Requirements" on page 3 are met. 2. Verify that the power cable is not damaged, and that the power source outlet provides a protective earth ground contact. Note that the Figure 2 depicts only one type of power source outlet. Refer to Figure 3 on page 6 to see the different types of power cord plugs that can be used with your test set. Cables are available in different lengths.
87050A Option K22 Figure 3 Preparations Power Cables a Plug Type 250V Cable Part Number Plug b Length Description cm (in.
87050A Option K22 Preparations Electrostatic Discharge Protection Protection against electrostatic discharge (ESD) is essential while removing assemblies from or connecting cables to the network analyzer. Static electricity can build up on your body and can easily damage sensitive internal circuit elements when discharged. Static discharges too small to be felt can cause permanent damage.
87050A Option K22 Getting Started Getting Started Connecting and Turning on the Test Set The test set is designed to be placed underneath the network ana6lyzer in a rack system and connected to it as shown in Figure 5. Use the two SMA 50 Ω jumper cables (08720-20245) that were shipped with the test set. See Table 1 on page 2. Figure 5 Connecting the Test Set to the Network Analyzer After all the proper connections have been made, turn on the test set using the front panel line switch.
87050A Option K22 Getting Started Setting the Test Set Address Switch The test set is shipped with the GPIB address set to 12, which sets the parallel address to 00 as in Figure 6. Refer to "Controlling the Test Set and Making Measurements" on page 11 for the definition of the parallel address. To set the GPIB address, set all five switches so that the sum of the switches in the “on” or “1” position equal the desired address.
87050A Option K22 Getting Started Performing the Operator’s Check For information on how to control the test set, refer to "Controlling the Test Set and Making Measurements" on page 11. The following operator's check is designed to provide you with a high degree of confidence that your test set is working properly. It is not designed to verify specifications. To verify specifications, refer to "Performance Tests" on page 48.
87050A Option K22 Controlling the Test Set and Making Measurements Controlling the Test Set and Making Measurements The 87050A Option K22 is considered a “slave” instrument (a controller must be used to control the test set). There are three ways in which the test set can be controlled: • The controller can talk to the network analyzer via GPIB (HP-IB), which then controls the test set via the parallel connection. • The controller can control the test set directly via GPIB (HP-IB).
87050A Option K22 Commands Commands As mentioned earlier, the test set can be controlled in three ways. The first two involve the use of a separate controller. The third way uses the network analyzer manually. These methods of control are detailed below and on the following page. Computer Control The first way to control the test set is to write GPIB commands to the network analyzer which then writes to the test set via the parallel port.
87050A Option K22 Commands If you are using Quick Basic or Visual Basic, be sure to disable EOI and EOL before sending commands to the test set. Including the semicolon in program commands will not ensure that these commands are disabled as would be the case in HP Basic/RMB. Using the 82335 GPIB Interface and Visual Basic, the following commands will disable EOI and EOL, send the necessary data to the test set, and re-enable EOI and EOL.
87050A Option K22 Commands Network Analyzer Control The third method of sending commands uses the network analyzer to control the test set directly. This method is performed with the standard setup of the network analyzer working with the test set. A parallel cable is connected from the network analyzer output to the test set input on both rear panels.
87050A Option K22 Table 2 Commands Test Port Addresses Connection Path GPIB Command Decimal Binary Equivalent A1 to PORT 1 a1p1 A1 to PORT 2 a1p2 A1 to PORT 3 a1p3 A1 to PORT 4 a1p4 A1 to PORT 5 a1p5 A1 to PORT 6 a1p6 A1 to PORT 7 a1p7 A1 to PORT 8 a1p8 A1 to PORT 9 a1p9 A1 to PORT 10 a1p10 A1 to PORT 11 a1p11 A1 to PORT 12 a1p12 A1 to AUX1 a1aux A1 to B1 a1b1 A1 to B2 a1b2 A1 to B3 a1b3 A1 to B4 a1b4 A2 to PORT 1 a2p1 13 00001101 A2 to PORT 2 a2p2 14 0000111
87050A Option K22 Table 2 Test Port Addresses Connection Path 16 Commands GPIB Command A2 to B1 a2b1 A2 to B2 a2b2 A2 to B3 a2b3 A2 to B4 a2b4 A3 to PORT 1 a3p1 A3 to PORT 2 a3p2 A3 to PORT 3 a3p3 A3 to PORT 4 a3p4 A3 to PORT 5 a3p5 A3 to PORT 6 a3p6 A3 to PORT 7 a3p7 A3 to PORT 8 a3p8 A3 to PORT 9 a3p9 A3 to PORT 10 a3p10 A3 to PORT 11 a3p11 A3 to PORT 12 a3p12 A3 to AUX1 a3aux A3 to B1 a3b1 A3 to B2 a3b2 A3 to B3 a3b3 A3 to B4 a3b4 A4 to PORT 1 a4p1 A4 to
87050A Option K22 Table 2 Commands Test Port Addresses Connection Path GPIB Command Decimal Binary Equivalent 52 00110100 A4 to PORT 9 a4p9 A4 to PORT 10 a4p10 A4 to PORT 11 a4p11 A4 to PORT 12 a4p12 A4 to AUX1 a4aux A4 to B1 a4b1 A4 to B2 a4b2 A4 to B3 a4b3 A4 to B4 a4b4 A1-4 TERMINATED aterm B1 to PORT 1 b1p1 B1 to PORT 2 b1p2 B1 to PORT 3 b1p3 B1 to PORT 4 b1p4 B1 to PORT 5 b1p5 B1 to PORT 6 b1p6 B1 to PORT 7 b1p7 B1 to PORT 8 b1p8 B1 to PORT 9 b1p9 B1 to P
87050A Option K22 Table 2 Test Port Addresses Connection Path 18 Commands GPIB Command Decimal Binary Equivalent B2 to PORT 7 b2p7 72 01001000 B2 to PORT 8 b2p8 73 01001001 B2 to PORT 9 b2p9 74 01001010 B2 to PORT 10 b2p10 75 01001011 B2 to PORT 11 b2p11 76 01001100 B2 to PORT 12 b2p12 77 01001101 B2 to AUX2 b2aux 78 01001110 B3 to PORT 1 b3p1 B3 to PORT 2 b3p2 B3 to PORT 3 b3p3 B3 to PORT 4 b3p4 B3 to PORT 5 b3p5 B3 to PORT 6 b3p6 B3 to PORT 7 b3p7 B3 to P
87050A Option K22 Table 2 Commands Test Port Addresses Connection Path GPIB Command B4 to PORT 10 b4p10 B4 to PORT 11 b4p11 B4 to PORT 12 b4p12 B4 to AUX2 b4aux B1-4 TERMINATED bterm SERIAL NUMBER sn? RESET1 *rst RESET22 *rst2 BOX IDENTITY idn? Decimal Binary Equivalent 105 01101001 Returns serial number in a string over the GP-IB Displays on LCD display only 1. Previously, one reset command (*rst) resided in the firmware.
87050A Option K22 Figure 8 Commands Switch and Port Configuration Driver Daughter Board Controller Interface Mother Board Power Supply Display LCD Board SW 12 5 SW 10 2 6 5 1 3 6 2 4 4 SW 14 SW 15 5 3 4 6 1 1 3 SW 11 5 2 2 1 21 6 4 2 1 21 3 2 21 5 4 6 3 2 1 21 2 1 1 1 5 5 2 4 6 2 1 21 SW 13 3 1 21 2 6 5 2 3 2 SW 61 SW 50 A i/p 1-4 3 SW 17 SW 16 1 6 2 Aux1 1 2 3 4 5 6 7 Test Ports 10 9 8 11 B i/p 4-1 Aux2 12 Agilent 8705
87050A Option K22 Table 3 Commands Switch Count Commands Switch Number GPIB Command J10 sw10? J11 sw11? J12 sw12? J13 sw13? J14 sw14? J15 sw15? J16 sw16? J17 sw17? J50 sw50? J51 sw51? J52 sw52? J53 sw53? J54 sw54? J55 sw55? J56 sw56? J57 sw57? J58 sw58? J59 sw59? J60 sw60? J61 sw61? To read the individual Switch Count, send the following two commands: OUTPUT 712;"sw10?" ENTER 712;J10$ The example above illustrates the J10 command only, to enter additional comma
87050A Option K22 Commands Individual GPIB Switch Selection Individual positioning of switches sw14, sw15, sw16, sw17 and sw50 through sw61 is also available with Rev0106. This allows the user to customize the 87050A Option K22 multiport configuration and to minimize the switch count “wear and tear” on the instrument. The new GPIB commands for this feature are listed in Table 4 on page 23. You must take care as to where the switches are in relation to the desired port selection when using these commands.
87050A Option K22 Table 4 Commands Additional GPIB Commands Connection Path GPIB Command Switch 14 set to 1 sw141 Switch 14 set to 2 sw142 Switch 14 set to 3 sw143 Switch 14 set to 4 sw144 Switch 14 set to 5 sw145 Switch 14 set to 6 sw146 Switch 15 set to 1 sw151 Switch 15 set to 2 sw152 Switch 15 set to 3 sw153 Switch 15 set to 4 sw154 Switch 15 set to 5 sw155 Switch 15 set to 6 sw156 Switch 16 set to 1 sw161 Switch 16 set to 2 sw162 Switch 16 set to 3 sw163 Switch 16 se
87050A Option K22 Calibrating the Test System Calibrating the Test System After the test set has warmed up for at least two hours, you should calibrate the instrument before making any measurements. Refer to your network analyzer user’s guide to determine the type of calibration appropriate for the measurements you will be making. You will need to calibrate each measurement path separately and store the calibration as an instrument state in the network analyzer.
87050A Option K22 Making Measurements Making Measurements The following examples assume that you are using a parallel port connection with an 8720D, with the test set's parallel address set to “0”. See "Setting the Test Set Address Switch" on page 9 for information on setting the test set's address. Measuring Transmission Refer to Figure 11 for the following discussion.
87050A Option K22 Example Programs Example Programs These programs are written in HP BASIC and are for use with an HP 9000 series 200/300/700 computer. The programs are briefly described below and the control program is listed following the description. CONTROL A program that demonstrates the control of the 87050A Option K22 via GPIB and/or the parallel port. This program can be used to manually select any port combination.
87050A Option K22 170 Nwa_addr=716 180 Ts_addr=712 Example Programs ! 8720D GPIB ADDRESS (IF USED) ! option K22 GPIB ADDRESS (IF USED) 190 ! 200 ! 210 CLEAR SCREEN 220 PRINT USING "3/,K,/";"***** DEMONSTRATION PROGRAM FOR Multiport K22 MANUAL CONTROL *****" 230 PRINT "Either direct GPIB control to the K22 may be selected (H), or" 240 PRINT "indirect control via the Parallel Port (P) of the 8720D." 250 REPEAT 260 Answ$="P" 270 OUTPUT 2;Answ$&CHR$(255)&"H"; 280 BEEP 300,.
87050A Option K22 Example Programs 490 PRINT "and Test port to be used (respectively). Setting a port to `0' will" 500 PRINT "terminate the corresponding port." 510 PRINT "Unless both numbers are `0', the two values cannot be the same." 520 PRINT "To terminate program, press STOP or PAUSE" 530 PRINT 540 PRINT "Example: 1,2,2,3 sets the switch box A1 I/P to Port 2 and B2 I/P to" 550 PRINT "Port 3. 2,4,2,0 sets A2 I/P port to Port 4; B2 I/P is not used.
87050A Option K22 820 Example Programs Refl=Set_no 830 CASE 2 840 Bin=Set_no 850 CASE 3 860 Trans=Set_no 870 CASE ELSE 880 PRINT "Too many numbers" 890 END SELECT 900 Counter=Counter+1 910 END WHILE 920 Set_no=VAL(Command$) 930 Trans=Set_no 940 IF NOT (((Refl<>Trans) OR (Refl=0 AND Trans=0) OR (Trans=13 AND Refl=13)) AND Refl<14 AND Trans<14 AND Refl>=0 AND Trans>=0) THEN 950 DISP "Port selections MUST be different if non-zero; Range= 0 to 13. Try again!" 960 BEEP 1500,.
87050A Option K22 Example Programs 1140 PRINT TABXY(1,23),"serial number is ";Sn$ 1150 ELSE 1160 IF POS(Command$,"SWITCH")>0 THEN 1170 Nu$=TRIM$(Command$[7,Command_length]) 1180 OUTPUT 712;"sw"&Nu$&"?" 1190 ENTER 712;Count$ 1200 PRINT TABXY(1,24),"switch no ";Nu$;" has ";Count$ 1210 ELSE 1220 DISP "Unknown command" 1221 WAIT 3 1230 END IF 1240 END IF 1250 END IF 1260 LOCAL Isc 1270 END LOOP 1280 END 1290 ! 1300 SUB Set_switches(Addr,Main_port$,Input_select$, Switched_port$,Cont
87050A Option K22 Example Programs 1480 Set_switches:! 1490 ! 1500 SELECT UPC$(TRIM$(Main_port$)) 1510 CASE "REFL" 1520 SELECT UPC$(TRIM$(Input_select$)) 1530 CASE "0","TERMINATE" 1540 Hswitch_code$="aterm" 1550 Pswitch_code$="52" 1560 CASE "1","A1" 1570 SELECT UPC$(TRIM$(Switched_port$)) 1580 CASE "1","PORT 1" 1590 Hswitch_code$="a1p1" 1600 Pswitch_code$="0" 1610 CASE "2","PORT 2" 1620 Hswitch_code$="a1p2" 1630 Pswitch_code$="1" 1640 CASE "3","PORT 3" 1650 Hswitch_code$="a1p3"
87050A Option K22 1840 Pswitch_code$="8" 1850 CASE "10","PORT 10" 1860 Hswitch_code$="a1p10" 1870 Pswitch_code$="9" 1880 CASE "11","PORT 11" 1890 Hswitch_code$="a1p11" 1900 Pswitch_code$="10" 1910 CASE "12","PORT 12" 1920 Hswitch_code$="a1p12" 1930 Pswitch_code$="11" 1940 CASE "13","AUX 1" 1950 Hswitch_code$="a1aux" 1960 Pswitch_code$="12" 1970 CASE "0","TERMINATE","RESET" 1980 Hswitch_code$="aterm" 1990 Pswitch_code$="52" 2000 CASE ELSE 2010 DISP "Unrecognized Switched_p
87050A Option K22 2180 CASE "5","PORT 5" 2190 Hswitch_code$="a2p5" 2200 Pswitch_code$="17" 2210 CASE "6","PORT 6" 2220 Hswitch_code$="a2p6" 2230 Pswitch_code$="18" 2240 CASE "7","PORT 7" 2250 Hswitch_code$="a2p7" 2260 Pswitch_code$="19" 2270 CASE "8","PORT 8" 2280 Hswitch_code$="a2p8" 2290 Pswitch_code$="20" 2300 CASE "9","PORT 9" 2310 Hswitch_code$="a2p9" 2320 Pswitch_code$="21" 2330 CASE "10","PORT 10" 2340 Hswitch_code$="a2p10" 2350 Pswitch_code$="22" 2360 CASE "11",
87050A Option K22 2530 SELECT UPC$(TRIM$(Switched_port$)) 2540 CASE "1","PORT 1" 2550 Hswitch_code$="a3p1" 2560 Pswitch_code$="26 2570 CASE "2","PORT 2" 2580 Hswitch_code$="a3p2" 2590 Pswitch_code$="27" 2600 CASE "3","PORT 3" 2610 Hswitch_code$="a3p3" 2620 Pswitch_code$="28" 2630 CASE "4","PORT 4" 2640 Hswitch_code$="a3p4" 2650 Pswitch_code$="29" 2660 CASE "5","PORT 5" 2670 Hswitch_code$="a3p5" 2680 Pswitch_code$="30 2690 CASE "6","PORT 6" 2700 Hswitch_code$="a3p6" 2710
87050A Option K22 2890 2900 Example Programs Pswitch_code$="37" CASE "13","AUX 1" 2910 Hswitch_code$="a3aux" 2920 Pswitch_code$="38" 2930 CASE "0","TERMINATE","RESET" 2940 Hswitch_code$="aterm" 2950 Pswitch_code$="52" 2960 2970 2980 CASE ELSE DISP "Unrecognized Switched_port$ parameter; """&Switched_port$&"""" STOP 2990 END SELECT 3000 CASE "4","A4" 3010 SELECT UPC$(TRIM$(Switched_port$)) 3020 CASE "1","PORT 1" 3030 Hswitch_code$="a4p1" 3040 Pswitch_code$="39" 3050 CASE "2","POR
87050A Option K22 3240 Hswitch_code$="a4p8" 3250 Pswitch_code$="46" 3260 CASE "9","PORT 9" 3270 Hswitch_code$="a4p9" 3280 Pswitch_code$="47" 3290 CASE "10","PORT 10" 3300 Hswitch_code$="a4p10" 3310 Pswitch_code$="48" 3320 CASE "11","PORT 11" 3330 Hswitch_code$="a4p11" 3340 Pswitch_code$="49" 3350 CASE "12","PORT 12" 3360 Hswitch_code$="a4p12" 3370 Pswitch_code$="50" 3380 CASE "13","AUX 1" 3390 Hswitch_code$="a4aux" 3400 Pswitch_code$="51" 3410 CASE "0","TERMINATE","RESET"
87050A Option K22 3590 3600 Pswitch_code$="53" CASE "2","PORT 2" 3610 Hswitch_code$="b1p2" 3620 Pswitch_code$="54" 3630 CASE "3","PORT 3" 3640 Hswitch_code$="b1p3" 3650 Pswitch_code$="55" 3660 CASE "4","PORT 4" 3670 Hswitch_code$="b1p4" 3680 Pswitch_code$="56" 3690 CASE "5","PORT 5" 3700 Hswitch_code$="b1p5" 3710 Pswitch_code$="57" 3720 CASE "6","PORT 6" 3730 Hswitch_code$="b1p6" 3740 Pswitch_code$="58" 3750 CASE "7","PORT 7" 3760 Hswitch_code$="b1p7" 3770 Pswitch_code$="
87050A Option K22 3950 3960 Pswitch_code$="65" CASE "0","TERMINATE","RESET" 3970 Hswitch_code$="bterm" 3980 Pswitch_code$="105" 3990 CASE ELSE 4000 DISP "Unrecognized Switched_port$ parameter; """&Switched_port$&"""" 4010 STOP 4020 END SELECT 4030 CASE "2","B2" 4040 SELECT UPC$(TRIM$(Switched_port$)) 4050 CASE "1","PORT 1" 4060 Hswitch_code$="b2p1" 4070 Pswitch_code$="66" 4080 CASE "2","PORT 2" 4090 Hswitch_code$="b2p2" 4100 Pswitch_code$="67" 4110 CASE "3","PORT 3" 4120 Hs
87050A Option K22 4290 CASE "9","PORT 9" 4300 Hswitch_code$="b2p9" 4310 Pswitch_code$="74" 4320 CASE "10","PORT 10" 4330 Hswitch_code$="b2p10" 4340 Pswitch_code$="75" 4350 CASE "11","PORT 11" 4360 Hswitch_code$="b2p11" 4370 Pswitch_code$="76" 4380 CASE "12","PORT 12" 4390 Hswitch_code$="b2p12" 4400 Pswitch_code$="77" 4410 CASE "13","PORT AUX 2" 4420 Hswitch_code$="b2aux" 4430 Pswitch_code$="78" 4440 CASE "0","TERMINATE","RESET" 4450 Hswitch_code$="bterm" 4460 Pswitch_code
87050A Option K22 4640 4650 Pswitch_code$="82" CASE "5","PORT 5" 4660 Hswitch_code$="b3p5" 4670 Pswitch_code$="83" 4680 CASE "6","PORT 6" 4690 Hswitch_code$="b3p6" 4700 Pswitch_code$="84" 4710 CASE "7","PORT 7" 4720 Hswitch_code$="b3p7" 4730 Pswitch_code$="85" 4740 CASE "8","PORT 8" 4750 Hswitch_code$="b3p8" 4760 Pswitch_code$="86" 4770 CASE "9","PORT 9" 4780 Hswitch_code$="b3p9" 4790 Pswitch_code$="87" 4800 CASE "10","PORT 10" 4810 Hswitch_code$="b3p10" 4820 Pswitch_code
87050A Option K22 4990 CASE "4","B4" 5000 SELECT UPC$(TRIM$(Switched_port$)) 5010 CASE "1","PORT 1" 5020 Hswitch_code$="b4p1" 5030 Pswitch_code$="92" 5040 CASE "2","PORT 2" 5050 Hswitch_code$="b4p2" 5060 Pswitch_code$="93" 5070 CASE "3","PORT 3" 5080 Hswitch_code$="b4p3" 5090 Pswitch_code$="94" 5100 CASE "4","PORT 4" 5110 Hswitch_code$="b4p4" 5120 Pswitch_code$="95" 5130 CASE "5","PORT 5" 5140 Hswitch_code$="b4p5" 5150 Pswitch_code$="96" 5160 CASE "6","PORT 6" 5170 Hswi
87050A Option K22 5350 Hswitch_code$="b4p12" 5360 Pswitch_code$="103" 5370 Example Programs CASE "13","PORT AUX 2" 5380 Hswitch_code$="b4aux" 5390 Pswitch_code$="104" 5400 CASE "0","TERMINATE","RESET" 5410 Hswitch_code$="bterm" 5420 Pswitch_code$="105" 5430 CASE ELSE 5440 DISP "Unrecognized Switched_port$ parameter; """&Switched_port$&"""" 5450 STOP 5460 END SELECT 5470 CASE ELSE 5480 DISP "Unrecognized Main_port$ parameter; """&Main_port$&"""" 5490 STOP 5500 END SELECT 551
87050A Option K22 Front Panel Front Panel Figure 12 Front Panel Features A i/p 2 A i/p 1–4 50 Ω Connector Line Power Switch Aux 1 Port Connection Status B i/p 4–1 B i/p 2 50 Ω Connector Ground Connector Ports 1–12 Aux 2 Line Power Switch The test set line POWER switch is located at the bottom left corner of the front panel. See Figure 12. The line POWER switch turns the power to the test set either on or off.
87050A Option K22 Front Panel Figure 13 Physical Description of 3.5 mm Connector CAUTION Refer to your analyzer’s documentation for damage limits to the RF IN and RF OUT ports. Make sure that your test setup will not cause those limits to be exceeded. The A i/p 1 through 4 Connectors The A i/p 1 through 4 connectors are female 3.5 mm 50 Ω connectors.
87050A Option K22 Rear Panel Rear Panel Figure 14 Rear Panel Features Parallel Port Input Parallel Port Output Printer Test Set Switch Address Switch Line Module GPIB (HP-IB) Connector The PARALLEL PORT INPUT Connector This input is connected to the network analyzer. The analyzer provides control signals that drive the switches inside the test set. In pass-through mode, it also accepts signals required to drive a printer.
87050A Option K22 Rear Panel Address Switch The address switch sets the GPIB (HP-IB) and/or parallel address of the test set. See "Setting the Test Set Address Switch" on page 9 for information. Line Module The line module contains the power cable receptacle and the line fuse. Power Cables The line power cable is supplied in one of several configurations, depending on the destination of the original shipment. Each instrument is equipped with a three-wire power cable.
87050A Option K22 Specifications Specifications The section provides the specifications of the 87050A Option K22. Table 5 Agilent 87050A Option K22 Specifications Parameter Specification Frequency Range 50 MHz to 20 GHz Isolation1 1) –85 dB2 2) –100 dB3 3) –95 dB4 4) –90 dB5 5) –90 dB6 Return Loss7 6) –24 dB8 7) –20 dB9 8) –14 dB4 9) –10 dB5 10) –8 dB6 Insertion Loss10 11) –2.5 dB11 12) –3.5 dB 13) –4.5 dB Input Power Damage Level >1 Watt RF + dc 1.
87050A Option K22 Performance Tests Performance Tests This section contains information to verify the performance of your test set, how to troubleshoot it if necessary, theory of operation and a block diagram. Performance testing consists of measuring insertion loss, return loss, and isolation between all ports. Please read all applicable safety warnings and cautions in "Safety and Regulatory Information" on page 68 before servicing the test set.
87050A Option K22 Performance Tests Insertion Loss Step 1. Recall full 2-port calibration. Step 2. Connect the cable that is attached to PORT 1 of the 8720D to the A i/p 1 port of the 87050A Option K22. Step 3. Connect the cable from PORT 2 of the analyzer to PORT 1 of the 87050A Option K22. Using the “CONTROL” program provided (see "Example Programs" on page 26), select reflection port 1. e.g., “1,1,0,0” (the selected transmission port does not matter). Verify using Table 5 on page 47.
87050A Option K22 Performance Tests Isolation Isolation need only be measured on adjacent ports. Two 50 Ω loads are required for this test. Step 1. Recall full 2-port calibration. Make sure the calibration is active and that averaging is “on” when making measurements. Step 2. Connect a 50 Ω load to both the A i/p 2 and B i/p 2 ports of the 87050A Option K22. Step 3. Connect the two cables that are attached to the network analyzer to ports 1 and 2 of the 87050A Option K22. The exact order does not matter.
87050A Option K22 Performance Tests Performance Test Record NOTE The following pages (Performance Test Record) are designed to be duplicated and used as a template for all of the input ports during each of the performance tests (Insertion Loss, Return Loss, and Isolation). At the top of each page, circle the appropriate input port (A or B) and number (1-4), and write in the test date.
87050A Option K22 Performance Tests A / B i/p Port 1 2 3 4 Table 6 Date _______________ Agilent 87050A Option K22 Insertion Loss Test Record Test Description Port Minimum Specifications Measured Results Measured Uncertainty Port 1 –2.5 dB ___________ ±0.3 dB Port 2 –2.5 dB ___________ ±0.3 dB Port 3 –2.5 dB ___________ ±0.3 dB Port 4 –2.5 dB ___________ ±0.3 dB Port 5 –2.5 dB ___________ ±0.3 dB Port 6 –2.5 dB ___________ ±0.3 dB Port 7 –2.5 dB ___________ ±0.
87050A Option K22 Performance Tests A / B i/p Port 1 2 3 4 Table 7 Date _______________ Agilent 87050A Option K22 Insertion Loss Record Test Description Port Minimum Specifications Measured Results Measured Uncertainty Port 1 –4.5 dB ___________ ±0.3 dB Port 2 –4.5 dB ___________ ±0.3 dB Port 3 –4.5 dB ___________ ±0.3 dB Port 4 –4.5 dB ___________ ±0.3 dB Port 5 –4.5 dB ___________ ±0.3 dB Port 6 –4.5 dB ___________ ±0.3 dB Port 7 –4.5 dB ___________ ±0.
87050A Option K22 Performance Tests A / B i/p Port 1 2 3 4 Table 8 Date _______________ Agilent 87050A Option K22 Return Loss Test Record Test Description Port Minimum Specifications Measured Results Measured Uncertainty Port 1 –24 dB ___________ ±1.5 dB Port 2 –24 dB ___________ ±1.5 dB Port 3 –24 dB ___________ ±1.5 dB Port 4 –24 dB ___________ ±1.5 dB Port 5 –24 dB ___________ ±1.5 dB Port 6 –24 dB ___________ ±1.5 dB Port 7 –24 dB ___________ ±1.
87050A Option K22 Performance Tests A / B i/p Port 1 2 3 4 Table 9 Date _______________ Agilent 87050A Option K22 Return Loss Test Record Test Description Port Minimum Specifications Measured Results Measured Uncertainty Port 1 –14 dB ___________ ±0.6 dB Port 2 –14 dB ___________ ±0.6 dB Port 3 –14 dB ___________ ±0.6 dB Port 4 –14 dB ___________ ±0.6 dB Port 5 –14 dB ___________ ±0.6 dB Port 6 –14 dB ___________ ±0.6 dB Port 7 –14 dB ___________ ±0.
87050A Option K22 Performance Tests A / B i/p Port 1 2 3 4 Table 10 Date _______________ Agilent 87050A Option K22 Return Loss Record Test Description Port Minimum Specifications Measured Results Measured Uncertainty Port 1 –8 dB ___________ ±0.5 dB Port 2 –8 dB ___________ ±0.5 dB Port 3 –8 dB ___________ ±0.5 dB Port 4 –8 dB ___________ ±0.5 dB Port 5 –8 dB ___________ ±0.5 dB Port 6 –8 dB ___________ ±0.5 dB Port 7 –8 dB ___________ ±0.
87050A Option K22 Performance Tests A / B i/p Port 1 2 3 4 Table 11 Date _______________ Agilent 87050A Option K22 Isolation Test Record Test Description Port Minimum Specifications Measured Results Measured Uncertainty Port 1 –85 dB ___________ ±5 dB Port 2 –85 dB ___________ ±5 dB Port 3 –85 dB ___________ ±5 dB Port 4 –85 dB ___________ ±5 dB Port 5 –85 dB ___________ ±5 dB Port 6 –85 dB ___________ ±5 dB Port 7 –85 dB ___________ ±5 dB Port 8 –85 dB ___________
87050A Option K22 Performance Tests A / B i/p Port 1 2 3 4 Table 12 Date _______________ Agilent 87050A Option K22 Isolation Test Record Test Description Port Minimum Specifications Measured Results Measured Uncertainty Port 1 –95 dB ___________ ±5 dB Port 2 –95 dB ___________ ±5 dB Port 3 –95 dB ___________ ±5 dB Port 4 –95 dB ___________ ±5 dB Port 5 –95 dB ___________ ±5 dB Port 6 –95 dB ___________ ±5 dB Port 7 –95 dB ___________ ±5 dB Port 8 –95 dB ___________
87050A Option K22 Performance Tests A / B i/p Port 1 2 3 4 Table 13 Date _______________ Agilent 87050A Option K22 Isolation Record Test Description Port Minimum Specifications Measured Results Measured Uncertainty Port 1 –90 dB ___________ ±7 dB Port 2 –90 dB ___________ ±7 dB Port 3 –90 dB ___________ ±7 dB Port 4 –90 dB ___________ ±7 dB Port 5 –90 dB ___________ ±7 dB Port 6 –90 dB ___________ ±7 dB Port 7 –90 dB ___________ ±7 dB Port 8 –90 dB ___________ ±7 dB
87050A Option K22 Assembly Replacement and Post-Repair Procedures Assembly Replacement and Post-Repair Procedures The following table contains the list of replaceable parts for the 87050A Option K22 test set. If any of these parts or assemblies are replaced, you must perform all performance tests to verify conformance to specifications. Table 14 Replaceable Parts Replacement Part Agilent Part Number Qty smm3.
87050A Option K22 Table 14 Assembly Replacement and Post-Repair Procedures Replaceable Parts Replacement Part Agilent Part Number Qty RF Cable, Port 3-T 08720-20195 2 RF Cable, Port 4-T 08720-20196 2 RF Cable, Port 5-T 08720-20197 2 RF Cable, Port 6-T 08720-20198 2 RF Cable, RT1-6 08720-20204 2 RF Cable, RT7-12 08720-20205 2 RF Cable, A i/p 1 08720-20225 1 RF Cable, A i/p 2 08720-20226 1 RF Cable, A i/p 3 08720-20227 1 RF Cable, A i/p 4 08720-20228 1 RF Cable, B i/p 1 0
87050A Option K22 Table 14 Assembly Replacement and Post-Repair Procedures Replaceable Parts Replacement Part Agilent Part Number Qty User’s and Service Guide 87050-90105 1 Switch, 1P4T 87104-60001 2 Switch, 1P6T 87106-60009 4 Cable Assembly, ac Line 87130-60007 1 NOTE The above parts are unique to this special option. To order replacement parts, please contact the Component Test PGU Support Group at (707) 577-6802 with the part number, module/model number and option number.
87050A Option K22 Troubleshooting and Block Diagram Troubleshooting and Block Diagram This section contains information on troubleshooting the test set to assembly level only. Following these procedures should enable you to determine whether the power supply, front panel, or main switch board need replacing. A block diagram is included at the end of this section as an aid in troubleshooting. Theory of operation information can be found in the next section of this manual.
87050A Option K22 Troubleshooting and Block Diagram Front Panel Board Turn the instrument power on and verify the following: • Verify the condition of each of the switching paths by issuing commands to switch each of the paths to either the transmission or reflection path. Ensure that the LCD indicates the appropriate path. • If the LCD indicates a wrong path, the problem can lie with either the front panel board or the main switch board. Measure the RF path to determine where the problem is.
87050A Option K22 Block Diagram Figure 16 Troubleshooting and Block Diagram 87050A Option K22 2 5 SW 10 6 A i/p 1-4 4 1 4 1 1 SW 15 2 SW 12 3 6 SW 50 5 5 Power Supply 3 Aux1 6 3 21 1 2 2 2 1 3 4 SW 14 6 2 1 1 5 3 21 2 6 2 1 1 SW 16 4 8 9 3 Display LCD Board 5 21 6 7 Test Ports 2 1 Controller Interface Mother Board 5 21 4 Agilent 87050A Option K22 Multi-Function Switch Matrix 2 21 10 2 1 1 2 6 4 5 3 3 Aux2 SW 61 1 SW 11 4 2 SW 17 6 2
87050A Option K22 Theory of Operation Theory of Operation The theory of operation begins with a general description of the Agilent 87050A Option K22 multiport test set. This is followed by more detailed operating theory. The operation of each group is described briefly, to the assembly level only. Detailed component-level circuit theory is not provided. System Theory The test set consists of three main components: a power supply, front panel display, and main switch board.
87050A Option K22 Theory of Operation When a port is not connected, it is automatically terminated in 50 Ω. Only one test port can be connected to any one of the A i/p ports and only one test port can be connected to any one of the B i/p ports at any given time. The test set consists of twelve 1×2 switches, six 1×6 switches, and two 1×4 switches. The 1×2 switches divide each of the input ports (1 through 12) into two separate paths.
87050A Option K22 Safety and Regulatory Information Safety and Regulatory Information Introduction Review this product and related documentation to familiarize yourself with safety markings and instructions before you operate the instrument. The documentation contains information and warnings that must be followed by the user to ensure safe operation and to maintain the product in a safe condition. Before Applying Power Verify that the premises electrical supply is within the range of the instrument.
87050A Option K22 Safety and Regulatory Information General Safety Considerations Cautions Cautions applicable to this instrument. CAUTION The Mains wiring and connectors shall be compatible with the connector used in the premise electrical system. Failure, to ensure adequate earth grounding by not using the correct components may cause product damage, and serious injury. CAUTION Always use the three prong AC power cord supplied with this product.
87050A Option K22 Safety and Regulatory Information Warnings Warnings applicable to this instrument. WARNING Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended. Discard used batteries according to manufacturer’s instructions. WARNING This is a Safety Class I product (provided with a protective earthing ground incorporated in the power cord). The mains plug shall be inserted only into a socket outlet provided with a protective earth contact.
87050A Option K22 Safety and Regulatory Information Regulatory Information This section contains information that is required by various government regulatory agencies. Instrument Markings The instruction documentation symbol. The product is marked with this symbol when it is necessary for the user to refer to the instructions in the documentation. This symbol indicates that the instrument requires alternating current (ac) input.
87050A Option K22 Safety and Regulatory Information Battery Collection Do not throw batteries away but collect as small chemical waste, or in accordance with your country’s requirements. You may return the battery to Agilent Technologies for disposal. Refer to "Contacting Agilent" on page 74 for assistance.
87050A Option K22 Electrostatic Discharge Protection Electrostatic Discharge Protection Protection against electrostatic discharge (ESD) is essential while removing assemblies from or connecting cables to the network analyzer. Static electricity can build up on your body and can easily damage sensitive internal circuit elements when discharged. Static discharges too small to be felt can cause permanent damage.
87050A Option K22 Agilent Support, Services, and Assistance Agilent Support, Services, and Assistance Service and Support Options The analyzer’s standard warranty is a one-year return to Agilent Technologies service warranty. NOTE There are many other repair and calibration options available from the Agilent Technologies support organization. These options cover a range of service agreements with varying response times.
