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E6198B Switch/Load Unit User Manual

Switch/Load Unit And Card Specifications

Agilent U7177A 24-Channel Medium-Current Load Card Specifications

Parameter

Specification

Path resistance from power bus to load card

connect

0.5

maximum

Load path relay operate/release time

3.3/2.4 msec typical
8/8 msec max,
10 cps maximum

Peak Voltage to Earth

60 V continuous

500 V maximum transient, non-switching (delays to

<60V in 200 mS)

Load carry/switching current

2 A maximum

Relay switching voltage

60 Vdc maximum

Minimum permisissible load

μΑ

10 mV DC

Basic current sense accuracy with standard 0.05

sense resistor

0.1% maximum

* Exclusive of load, with standard 0.05

sense resistor and 10A slo-blo fuse installed. (5

for load currents <0.1A.)

Summary of Contents for E6198B

Page 1: ...Agilent Technologies Agilent TS 5000 Functional Test System E6198B Switch Load Unit User Manual...

Page 2: ...f Software is subject to Agilent Technologies standard commercial license terms and non DOD Departments and Agencies of the U S Government will receive no greater than Restricted Rights as defined in...

Page 3: ...ound The System 2 4 Fuses 2 4 Operator Safety Information 2 4 Safety Symbols and Regulatory Markings 2 5 End of Life Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC 2 7 3 Switch Lo...

Page 4: ...Recommendations 4 2 Load Card Types and IDS 4 4 Connecting an Additional Spare Power Supply 4 5 Configuring the Power Busses 4 6 Setting the UUT Power Supply Remote Local Sense Jumpers 4 8 Configuring...

Page 5: ...77A 24 Channel Load Card 5 38 Card Layout 5 40 Selecting a Power Supply Configuration 5 41 Using the Power Switches as General Purpose Relays 5 41 Connecting Loads 5 42 Load Wiring 5 44 UUT Connection...

Page 6: ...Installing and Removing Mezzanine Cards 5 81 Wiring the Mezzanine Cards 5 82 UUT Connections 5 82 Using the Agilent N9379A 48 Channel High Density Load Card 5 84 Card Layout 5 86 Load Circuit Details...

Page 7: ...7 4 J2 Connector Breakouts 7 4 J3 J4 Connector Breakouts DAC 7 5 J3 or J4 Connector Breakouts Event Detector 7 6 J5 and J6 Connector Breakouts 32 Pin Matrix Cards 7 7 E8794A Components and Schematics...

Page 8: ...4 Card Type R Base 0h B 5 Card Configuration R Base 1h B 5 Status Register R Base 2h B 5 Fixture ID R Base 3h B 6 Digital Input R Base 4h B 6 DAC1 Output MSB W Base 8h B 6 DAC1 Output LSB W Base 9h B...

Page 9: ...ement Matrix Card B 65 Agilent E8783A 64 Pin Matrix Card B 74 Agilent E8794A Custom Card Register Definitions B 83 C Repair Information Support Strategy C 2 Locating Load Card Components C 2 Agilent E...

Page 10: ...x E6198B Switch Load Unit User Manual THIS PAGE IS INTENTIONALLY LEFT BLANK...

Page 11: ...guring the Switch Load Unit Figure 4 1 Example of Load Matrix Custom Cards Loading Order 4 4 Figure 4 2 Component Location Schematic for User Installed External Power Supply 4 5 Figure 4 3 Spare Suppl...

Page 12: ...etail 5 30 Figure 5 21 Typical Agilent E6176A Load Card Flyback Protection Circuit 5 31 Figure 5 22 Agilent E6176A Connectors J1 J2 and Mating Connectors P1 P2 5 32 Figure 5 23 Agilent E6176A Load Wir...

Page 13: ...9A 48 Channel High Density Load Card Block Diagram 5 85 Figure 5 60 Agilent N9379A Layout 5 86 Figure 5 61 Load Circuit Details 5 87 Figure 5 62 Agilent N9379A Mezzanine Card 5 88 6 Using the Pin Matr...

Page 14: ...7 Figure 7 6 E8794A Layout 7 8 Figure 7 7 E8794A Component Locator 7 9 Figure 7 8 E8794A Schematic 7 10 Figure 7 9 Status and Control Interface 7 11 A Switch Load Unit And Card Specifications B Regist...

Page 15: ...e 3 6 J102 Signal Definitions 3 18 Table 3 7 Switch Load Unit J1 Pinout 3 19 Table 3 8 Switch Load Unit J2 Pinout 3 19 Table 3 9 Switch Load Unit J3 Pinout 3 19 Table 3 10 Power Supply Input for each...

Page 16: ...Table C 2 Instrument Matrix Relays C 7 Table C 3 Bypass and Disconnect Relays C 7 Table C 4 Miscellaneous Relays C 7 Table C 5 Measurement Matrix Relays for E8782A C 8 Table C 6 Measurement Matrix Re...

Page 17: ...0 1 Agilent TS 5000 E6198B Switch Load Unit User Manual Agilent Technologies Declaration of Conformity...

Page 18: ...for this product is available on the Agilent Technologies website You can search for the DoC by its product model or description at the following web address http regulations corporate agilent com DoC...

Page 19: ...5000 E6198B Switch Load Unit User Manual Agilent Technologies 1 Legal Information Warranty 1 2 Technology Licenses 1 2 Restricted Rights Legend 1 2 Service And Support 1 3 Agilent On The Web 1 3 Agile...

Page 20: ...n the separate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the t...

Page 21: ...Double click the link to Test Measurement Select your country from the drop down menus The Web page that appears next has contact information specific for your country Agilent By Phone If you do not...

Page 22: ...2 404 93 40 Denmark 45 70 13 15 15 Finland 358 0 10 855 2100 France 0825 010 700 0 125 minute Germany 07031 464 6333 0 14 minute Ireland 1890 924 204 Israel 972 3 9288 504 544 Italy 39 02 92 60 8484...

Page 23: ...fety Information 2 2 Safety Summary 2 2 Safety Notice 2 2 General 2 2 Environmental Conditions 2 3 Before Applying Power 2 3 Ground The System 2 4 Fuses 2 4 Operator Safety Information 2 4 Safety Symb...

Page 24: ...may be impaired if it is used in a manner not specified in the operation instructions CAUTION A CAUTION notice denotes a hazard It calls attention to an operating procedure practice or the like that...

Page 25: ...t covers Component replacement and internal adjustments must be made only by qualified service personnel Products that appear damaged or defective should be made inoperative and secured against uninte...

Page 26: ...t use repaired fuses or short circuited fuse holders To do so could cause a shock or fire hazard For AC inlet fuse use only 5A 250VAC fuse with Time Lag and Low Breaking capacity For other fuse rating...

Page 27: ...ctrical power distribution Safety Symbols and Regulatory Markings Symbols and markings on the system in manuals and on instruments alert you to potential risks provide information about conditions and...

Page 28: ...SA mark with the indicators C and US means that the product is certified for both the U S and Canadian markets to the applicable American and Canadian standards The C tick mark is a registered tradema...

Page 29: ...label see below indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE directive Annex 1...

Page 30: ...2 8 E6198B Switch Load Unit User Manual 2 Safety and Regulatory Information THIS PAGE IS INTENTIONALLY LEFT BLANK...

Page 31: ...6198B Standalone Switch Load Unit Description 3 3 E6198B Integrated Switch Load Unit Description 3 9 Backplane And Breakout Board Connectors and LEDs 3 10 Differentiating E6198B Standalone Option and...

Page 32: ...Switch Load Unit Rating Electrical Mechanical Table 3 1 Switch Load Unit Rating Electrical Parameter Value Input Voltage 100 240 VAC nominal Frequency 50 60 Hz Power 325 W maximum Table 3 2 Switch Lo...

Page 33: ...177A 24 channel load card with current sense Agilent E6178B 8 channel high power load card Agilent N9377A 16 channel dual load load card Agilent N9378A 24 channel low resistance load card Agilent N937...

Page 34: ...In Cards In addition to holding load cards pin matrix cards and custom cards the Switch Load Unit also provides the following capabilities Figure 3 1 Agilent E6198B Standalone Switch Load Unit Front V...

Page 35: ...of digital input 8 bits of digital output Open Drain Out and 8 bits of TTL level digital output Spare Digital Out There is no handshaking capability in the digital I O Typical usage of the digital I O...

Page 36: ...14 bit channels of DAC provide 16 volts at 10 mA each To provide this voltage swing a charge pump is used to step up the 12 volt supply The DAC channels are typically used for controlling differentia...

Page 37: ...upplies connected to power buses 1 4 This sensing compensates the losses in the system wiring to ensure the set voltage is applied to the sense point Switch Load Unit Block Diagram Figure 3 5 shows a...

Page 38: ...Card Agilent E6198B Switch Load Unit Load Card n Pin Matrix Card n Digital In Power Bus Sense Isense Switch Load Unit Circuitry Digital Out DAC 12V 12V Power Bus Power Supply 1 Power Supply 2 Power Su...

Page 39: ...The Agilent E6198B now comes as a system integrated unit or a standalone unit The features and functionality remains the same as the previous E6198A Differences between the two are in the cabling and...

Page 40: ...ibed on the following pages See Table 3 3 for more detail Figure 3 7 Switch Load Unit Backplane Connectors USB port adaptor board Not Shown BACKPLANE SLU T4 T8 T9 T1 T5 T10 T11 T2 T6 T12 T13 T3 T7 T14...

Page 41: ...one option and is easily accessible from the SLU rear Figure 3 8 shows connector locations on the breakout board external board Refer Table 3 5 for the detailed descriptions Figure 3 8 Switch Load Uni...

Page 42: ...ty Connector J104 External Reset reserved J105 5V Indicator 5V Status J106 12V Indicator 12V Status J107 12V Indicator 12V Status J108 READY Indicator Control Status J109 12V Output For Fan J110 12V O...

Page 43: ...tension connector J_3 Utility Connector J102 internal connector J_5 Frame Select Spare Supply Connect to J1 of backplane internal connector J_6 Power Bus Sense Local Remote Connect to J3 of backplane...

Page 44: ...and 16 21 These busses may be connected together to form a single bus or split into independent current sense busses using Switches S3A S3F on breakout board Standalone are shown in their factory def...

Page 45: ...EDs are present on the frontpanel of the SLU Frame LEDs The Frame Access LED flashes to indicate a data access has occurred to that Switch Load Unit The five Slot Address LEDs indicate the slot curren...

Page 46: ...0 Digital In 2 Digital In 4 Digital In 6 Spare_DigOut 0 Spare_DigOut 6 Spare_DigOut 4 Spare_DigOut 2 ISense 1 ISense 4 ISense 3 ISense 2 Power Bus Sense 1 Power Bus Sense 3 System Gnd System Gnd Syst...

Page 47: ...nection 12 Vdc Supply 12 Vdc Supply 12 Vdc Supply 3 Open Drain Out 7 Open Drain Out 5 Open Drain Out 1 Open Drain Out 3 DAC2 DAC1 No Connection System Gnd System Gnd Spare Supply 12 Vdc Supply 12 Vdc...

Page 48: ...D for each mass interconnect fixture and read it back ID sent as TTL level bits Isense 1 4 Isense 1 4 These lines connect to the current sense bus on the Switch Load Unit backplane These lines are use...

Page 49: ...SENSE Bussed Split Default setting for J2 is ISENSE Bussed J3 Pinout Table 3 9 shows pinouts of Power Bus Sense Local Remote Local 1 is selected if LOC_S1 is connected with PB1 Remote 1 is selected if...

Page 50: ...T14 provides the required 5 volts and 12 volts for powering the backplane and Load Cards Table 3 10 shows each jumpers contains difference power supply Table 3 10 Power Supply Input for each Jumpers...

Page 51: ...tandalone unit the backplane connectors are extended to the breakout board attached to the SLU rear cover At SLU rear you will find toggle switches for SLU configuration power and sense buses connecto...

Page 52: ...3 22 E6198B Switch Load Unit User Manual 3 Switch Load Unit and Plug In Cards Figure 3 12 Switch Load Unit Rear View System Integrated Option...

Page 53: ...r the standalone unit Notice the protective cable enclosure covering both the power bus cabling and power sense cabling for better protection For the integrated unit there is no protective cable enclo...

Page 54: ...3 24 E6198B Switch Load Unit User Manual 3 Switch Load Unit and Plug In Cards THIS PAGE IS INTENTIONALLY LEFT BLANK...

Page 55: ...Card Location Recommendations 4 2 Connecting an Additional Spare Power Supply 4 5 Configuring the Power Busses 4 6 Connecting E6198B to the Computer via USB Interface or Parallel Port 4 12 Adding a S...

Page 56: ...rds using the following rules Agilent N9379A 48 Channel Load Cards Install any N9379A cards first starting at slot 1 Agilent E6177A 24 Channel Load Cards Install any E6177A cards next Agilent U7177A 2...

Page 57: ...nt E6178B 8 channel Heavy Duty cards require 2 slots each These cards are installed in even slot locations only Install E6178B cards starting with the first available even slot following the 16 channe...

Page 58: ...ard Types and IDS Each card is assigned a different type and has a 10 pin connector that lets you assign a unique binary code ID number to each card See Load Card Type and Configuration ID for more in...

Page 59: ...cy noise on the supply line The auxiliary supply output Spare Supply appears on Switch Load Unit connector J102 pin 79 and on the Test System Interface TC2 pin N4 For SLU Standalone option you can con...

Page 60: ...ussed together on the PC board providing a common connection for up to three supplies The following examples A and B show the two most common ways of configuring the power busses Example A shows three...

Page 61: ...used if for example one supply requires local sensing while the other requires remote sensing at the UUT For the standalone SLU users can directly connect to the external connector DC Power Bus Connec...

Page 62: ...ross the cables between the load and power supply In remote sense the voltage across the load equals the selected power supply voltage In this configuration the power supply automatically increases th...

Page 63: ...Sense Remote Local swithes to select either Remote or Local mode See Figure 4 9 Figure 4 9 PB Sense Remote Local Interface Standalone SLU For Integrated use Jumper to select the mode on PB Sense Remot...

Page 64: ...rrent sense readings can be made at a time The jumpers are located into J2 connector Figure 3 7 Removing any jumper splits the current sense bus at that point Cards to the left of the removed jumper s...

Page 65: ...ntegrated SLU jumpers are used to select between Bussed Split see Figure 4 12 Figure 4 12 ISense Bussed Split Interface Integrated SLU NOTE Ensure Load Cards that will be accessed simultaneously for c...

Page 66: ...to the Computer via USB Interface or Parallel Port USB interface is introduced in E6198B on top of parallel port interface which is available on the older version on SLU The USB interface connects to...

Page 67: ...he Frame Select toggle switches sets the address of each Switch Load Unit see Figure 4 14 The toggle switches can be set for any address from zero to seven However for the Integrated SLU jumpers must...

Page 68: ...nd secure to the rack using 4 spacers 0380 0317 and 4 dress screws 0570 1272 Spacers are only required for the first loadbox to clear the door latch Check the build list for the number of load boxes E...

Page 69: ...l Load Card 5 25 Using the Agilent E6177A 24 Channel Load Card 5 38 Using the Agilent U7177A 24 Channel Load Card 5 46 Using the Agilent E6178B 8 Channel Load Card 5 54 Using the Agilent N9377A 16 Cha...

Page 70: ...dium Current Load Card for non inductive loads is intended to be used with loads mounted on the card A 9 inch by 4 inch area of sheet metal is open on the front of the card for mounting small loads Th...

Page 71: ...intended to be used with externally mounted loads This card is one slot wide and capable of up to 2A continuous carry current The Agilent E6178B 8 Channel Heavy Duty Load Card is designed for very hig...

Page 72: ...conceptual block diagram of a typical load application having these four main areas Power Supply Load Card Loads Unit Under Test UUT Figure 5 1 Loads Sources Conceptual Overview Unit Under Test V GND...

Page 73: ...24 Channel Low Resistance Card Type is 5 Agilent N9379A 48 Channel High Density Card Type is 6 Agilent N9377A 16 Channel Dual Load Card Type is 7 Except for the N9378A and N9379A each load card is eq...

Page 74: ...n the N9379A load card The configuration pins are normally high with a 10 K pull up resistor resident on the load card producing a value of FFh Grounding selected pins creates binary codes which can b...

Page 75: ...1 4 of the Agilent E6198B Switch Load Unit enclosure closest to the incoming power buses Card Location Recommendations The card type is 01h Load Card Type and Configuration ID The factory default is...

Page 76: ...5 8 E6198B Switch Load Unit User Manual 5 Using Load Cards and Loads Figure 5 3 Agilent E6175A 8 Channel High Current Load Card Block Diagram...

Page 77: ...n and an NC normally closed terminal Each NO terminal is connected to a pin on J3 and each NC terminal is connected to a pin on J4 Each pin on J3 or J4 can be connected to any of the four power bus li...

Page 78: ...cer from LEM Inc Figure 5 5 shows the relationship between the sense resistor Rs and the LEM module current transducer only one or the other is used never both Sense Resistors The card comes factory l...

Page 79: ...load card s printed circuit board Installing a current transducer involves both elements of a channel pair For example if the LEM module were to be installed across channels 1 2 1 Remove the 0 05 cur...

Page 80: ...s 5 Install two bypass capacitors C41 and C42 both 0 01 F 6 Install the appropriate primary coil range jumpers See Figure 5 7 NOTE Use a wire gauge appropriate for the current through the load Figure...

Page 81: ...rimary for Various Current Ranges Table 5 2 Components involved in LEM Module Installation Channel s Isense Resistor Rmvd Measuring Resistor Shorting Jumper Bypass Capacitors 0 01 f LEM Module LEM Tap...

Page 82: ...els 1 and 2 on the component locator diagram of the 8 Channel Load Card It shows the location and polarity orientation for channel 1 s RT1 and RT2 and channel 2 s RT3 and RT4 flyback protection device...

Page 83: ...s should be installed with the positive side towards the UUT On each of the four channel pairs the high side should be located as shown in the component locator diagram Figure 5 9 Figure 5 8 8 Channel...

Page 84: ...l MOV 3mm axial lead mounted specifications are Continuous DC voltage 220 V Transient energy 10 1000mS 0 90 Joules watt seconds Transient peak current 8 20mS 100 Amperes Varistor voltage 1 0mA DC 300...

Page 85: ...sed at the external DMM when the corresponding Isense MUX relays are closed The ground return in this example is assumed to be switched through another load card or connected directly to the UUT In th...

Page 86: ...ce Relay Timer Relay Slot Decode Logic J2 Configuration Connector Current Sense Control Address Data Power 5 12V P1 J3 NO PB1 PB2 PB3 PB4 PS 1 PS 2 PS 3 NC J5 J4 Load ISense 1 ISense 2 NO PwrSw3 NC RS...

Page 87: ...ies are not used The power for the bridge is supplied by the module the connection to the UUT power supply is effectively bypassed See Figure 5 12 Use the following table to determine the appropriate...

Page 88: ...ds are mounted on the Agilent E6175A s sheet metal mounting area The loads are wired to connector P1 which mates to the Agilent E6175A s J1 connector Figure 5 13 shows the Agilent E6175A s load mounti...

Page 89: ...P1 Connector Wiring Terminal View Row 15 Row 14 Row 13 Row 12 Row 11 Row 10 Row 9 Row 8 Row 7 Row 6 Row 5 Row 4 Row 3 Row 2 Row 1 Channel 1 Power 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Ch...

Page 90: ...nected together on the PC board When connecting high current 3 amp loads wire across all three pins in each row of P1 see Figure 5 15 This ensures current sharing across all pins and prevents prematur...

Page 91: ...ils You can also make connections directly to P2 Figure 5 16 is a P2 connector pinout showing the details Each even numbered row of P2 represents a single load card channel The three pins in each row...

Page 92: ...d Loads Figure 5 16 Agilent E6175A 8 Channel High Current Load Card UUT Connections NC No Connection P2 Connector Front View E1 NC Channel 8 NC NC NC NC NC NC NC Channel 7 Channel 6 Channel 5 Channel...

Page 93: ...t required The card is one slot wide Card Location Recommendations The card type is 02h Load Card Type and Configuration ID The factory default configuration is explained in Selecting a Power Supply C...

Page 94: ...5 26 E6198B Switch Load Unit User Manual 5 Using Load Cards and Loads Figure 5 17 Agilent E6176A 16 Channel High Current Load Card Block Diagram...

Page 95: ...n J4 J7 and each NC terminal is connected to a pin on J8 J11 Each pin on J8 J11 can be connected to any of the four power bus lines on J12 via jumper wires See Figure 5 27 The terminal block jumper al...

Page 96: ...e sense resistor with a four wire resistor of higher value Selecting a Load Fuse The load fuses used are IEC 5x20 millimeter 5 amp slow blow These fuses may be replaced by fuses with a higher value bu...

Page 97: ...power switch and one flyback protection from the output to the normally closed side of the power switch In Figure 5 41 Channel 1 has two input lines connected to the input Form C switch RT1 connects...

Page 98: ...e protection Protection Devices Zener Diodes MOVs Metal Oxide Varistor or Transzorbs devices mounted at RTx or RTy 2 required per load 1 at NC and 1 at NO provide current path for the inductive load f...

Page 99: ...20mS 450 volts Capacitance 17 pF Typical Transzorb specifications are Breakdown voltage 300V max at 1mA Reverse Standoff voltage 250 volts Maximum reverse leakage 5mA Maximum peak pulse current 5A Ma...

Page 100: ...e connectors Load Wiring Figure 5 23 is a simplified schematic and connector pinouts showing how loads are connected to P1 P2 Loads 1 through 8 connect to P1 and loads 9 through 16 connect to P2 Figur...

Page 101: ...nel 5 Channel 6 Channel 7 Channel 8 Power 2 Power 3 Power 4 Power 5 Power 6 Power 7 Power 8 Load 1 Load 2 Load 3 Load 4 Load 5 Load 6 Load 7 Load 8 Row 16 A C E P2 Connector Wiring Terminal View Row 1...

Page 102: ...ach row of P1 P2 see Figure 5 24 This ensures current sharing across all pins and prevents premature pin failure from excessive current flow CAUTION Connecting high current 4 amp loads without wiring...

Page 103: ...oose to mount the loads externally Mount the loads as close to the load card as possible The dimensions of the load plate for the 16 channel card are Height 23 32 cm 9 18 in Length Max 34 00 cm 13 386...

Page 104: ...nnect wiring guide for connection details You can also make connections directly to P2 Figure 5 26 is a simplified load card schematic and P2 connector pinout showing the details Each row of P2 repres...

Page 105: ...lent E6176A P2 Connector Pinouts P2 Connector Front View E1 Channel 16 Channel 15 Channel 14 Channel 12 Channel 10 Channel 8 Channel 6 Channel 4 Channel 2 Channel 13 Channel 11 Channel 9 Channel 7 Cha...

Page 106: ...ng a Power Supply Configuration on page 41 The Common line PwrX where X is the channel number on the input is brought back out to the input allowing each channel to operate in a general purpose GP con...

Page 107: ...Using Load Cards and Loads 5 E6198B Switch Load Unit User Manual 5 39 Figure 5 27 Agilent E6177A 24 Channel Medium Current Load Card Block Diagram...

Page 108: ...5 40 E6198B Switch Load Unit User Manual 5 Using Load Cards and Loads Card Layout Figure 5 28 shows the E6177A layout Figure 5 28 Agilent E6177A 24 Channel Load Card Layout...

Page 109: ...together and one that ties all the pins on J10 J15 together The NO pins are jumpered to power bus 2 and the NC pins are jumpered to power bus 1 The jumper combs for J3 J8 and J10 Jl5 can be easily cu...

Page 110: ...re mounted on the Agilent E6177A s sheet metal mounting area The loads are wired to connector P1 which mates to the Agilent E6177A s J1 connector Figure 5 30 shows the Agilent E6177A s load mounting a...

Page 111: ...Using Load Cards and Loads 5 E6198B Switch Load Unit User Manual 5 43 Figure 5 30 Agilent E6177A Load Mounting Area and P1 J1 Connectors J1 P1 Load Mounting Area...

Page 112: ...9 C 10 C Channel 11 Load 12 Power 12 9 E 10 E Channel 12 Load 13 Power 13 7 A 8 A Channel 13 Load 14 Power 14 7 C 8 C Channel 14 Load 15 Power 15 7 E 8 E Channel 15 Load 16 Power 16 5 A 6 A Channel 16...

Page 113: ...ables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details You can als...

Page 114: ...s explained in Selecting a Power Supply Configuration The factory default is to load a 0 05 0 1 sense resistor in each channel See Selecting a Current Sense Resistor Value The Common line PwrX where X...

Page 115: ...Using Load Cards and Loads 5 E6198B Switch Load Unit User Manual 5 47 Figure 5 33 Agilent U7177A 24 Channel Medium Current Load Card Block Diagram...

Page 116: ...NC terminal is connected to a pin on J10 J15 Each pin on J3 J15 can be connected to any of the four power busses on J9 via jumper wires See Figure 5 33 The terminal block jumper allows convenient pul...

Page 117: ...ake the sense voltage readable then replace the sense resistor with a four wire resistor of higher value Using the Power Switches as General Purpose Relays The U7177A has a special feature that is sim...

Page 118: ...e loads are wired to connector P1 which mates to the Agilent U7177A s J1 connector Figure 5 36 shows these connectors Figure 5 35 Using the 24 Channel Load Card Switches as GP Relays CAUTION When usin...

Page 119: ...ads 5 E6198B Switch Load Unit User Manual 5 51 Load Wiring Figure 5 37 is a simplified schematic and P1 connector pinout showing how loads are connected to P1 Figure 5 36 Agilent U7177A Connector J1 a...

Page 120: ...5 52 E6198B Switch Load Unit User Manual 5 Using Load Cards and Loads Figure 5 37 Agilent U7177A Load Wiring Schematic and P1 Pinouts...

Page 121: ...ted via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details Yo...

Page 122: ...the external power supplies to the load card not through the Agilent E6198B Switch Load Unit Power Supply Buses Each channel is capable of up to 30 Amps continuous carry into a resistive load Selecti...

Page 123: ...Using Load Cards and Loads 5 E6198B Switch Load Unit User Manual 5 55 Figure 5 39 Agilent E6178B 8 Channel Heavy Duty Load Card Block Diagram...

Page 124: ...a load that is floating with respect to the power system Other configurations are possible For example the negative terminals of two external power supplies could be connected together at the UUT and...

Page 125: ...alled load fuses are x 1 30 amp slow blow These fuses may be replaced by fuses with a lower value depending on your load requirements The Agilent E6178 was qualified with a Bussman MDL 30 fuse This fu...

Page 126: ...m over the temperature range Offset Error 0 3 Amps Typical over the temperature range 0 7 Amps Maximum over the temperature range The error due to the offset component can be reduced by measuring the...

Page 127: ...flyback Select the protection device so that it conducts at a voltage higher than the UUT s internal protection If the device s internal protection fails then the added external protection conducts to...

Page 128: ...2 shows how the Agilent E6178B Load Card is wired Connect loads between J11 J18 and J31 J38 Loads are external to the load card and connected to the load card via cables Connectors J11 and J31 connect...

Page 129: ...Using Load Cards and Loads 5 E6198B Switch Load Unit User Manual 5 61 Figure 5 42 Agilent E6178B Load Card Wiring...

Page 130: ...include The card is one slot wide Card Location Recommendations The card type is 07h Load Card Type and Configuration ID Each channel is capable of up to 7 5 amp continuous carry into a resistive load...

Page 131: ...PB1 PwrSw1 J3 Configuration Connector Relay Timer Relay Slot Decode Logic Protection Mother Board Interface 180 180 UUT Loads P2 Load Switches External Mount Loads NO1 RS NC1 LdSense 1 LdSense 1 Flyb...

Page 132: ...1 K30 3 K30 2 K30 4 K30 5 K30 7 K30 6 K32 5 K32 4 K32 6 K32 7 K32 9 K32 8 K33 1 K33 0 K31 7 K31 6 K31 9 K31 8 K32 0 K32 1 K32 2 K32 3 Relays Sense elements flyback clamps Fuses Reed relays Isense Rel...

Page 133: ...on J8 J11 NC together The NO pins are jumpered to power bus 2 and the NC pins are jumpered to power bus 1 The jumper combs for J4 Jll can be easily cut to provide bus or pin isolation between the var...

Page 134: ...and channel 2 RT503 and RT504 flyback protection devices when they are installed This pattern is repeated for the other fourteen channels The flyback protection devices have one flyback protection fro...

Page 135: ...he location of the polarization dot as shown in the flyback component locator diagram Figure 5 45 MOV Metal Oxide Varistor or back to back zener diodes are recommended for flyback voltage protection P...

Page 136: ...20mS 450 volts Capacitance 17 pF Typical Transzorb specifications are Breakdown voltage 300V max at 1mA Reverse Standoff voltage 250 volts Maximum reverse leakage 5mA Maximum peak pulse current 5A Ma...

Page 137: ...to the J1 connector and loads 9 through 16 connect to the J2 connector Each pin is rated for 2A continuous The following figures show details to help you correctly wire loads to the connectors Figure...

Page 138: ...h Load Unit User Manual 5 Using Load Cards and Loads CAUTION Connecting high current loads 2 amp per pin can cause premature pin failure Be sure to read Current Sharing of this manual before wiring hi...

Page 139: ...A C E B D A C E B D 8Pwr J1 Load 8 1 A C E Chan8 D B Load 8 2 A C E B D A C E B D A C E B D 9Pwr Load 9 1 A C E Chan9 D B Load 9 2 A C E B D A C E B D A C E B D 16Pwr Load 16 1 A C E Chan16 D B Load...

Page 140: ...wr 5Load 1 5Load 2 5Pwr Chan5 5Pwr 6Load 1 6Load 2 6Pwr Chan6 6Pwr 7Load 1 7Load 2 7Pwr Chan7 7Pwr 8Load 1 8Load 2 8Pwr Chan8 8Pwr J2 Connector Wiring Terminal View Row 30 Row 31 Row 32 Row 21 Row 20...

Page 141: ...1 4Load 1 20 12Load 1 12Load 1 12Load 1 12Load 1 12Load 1 19 4Load 2 4Load 2 4Load 2 4Load 2 4Load 2 19 12Load 2 12Load 2 12Load 2 12Load 2 12Load 2 18 4Pwr 4Pwr 4Pwr 4Pwr 4Pwr 18 12Pwr 12Pwr 12Pwr 12...

Page 142: ...ns in each row of the connectors see Figure 5 52 This ensures current sharing across all pins and prevents premature pin failure from the excessive current flow External Load Mounting Options As with...

Page 143: ...is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for c...

Page 144: ...number on the input is brought back out to the input allowing each channel to operate in a general purpose GP configuration This lets you switch in an external power supply while bypassing the power...

Page 145: ...Relay Slot Decode Logic P1 PB1 PB2 PB3 PB4 PS 1 PS 2 PS 3 GPIB J3 Configuration Connector External Mount Loads NO1 NC1 Pwr1 Load Switches NO24 Pwr24 NC24 Chan1 Current Sense Control Address Data Power...

Page 146: ...oad10 4 Load15 1 Load15 2 Load15 3 Load15 4 Load16 1 Load16 2 Load16 3 Load16 4 Load21 3 Load21 4 Load22 3 Load22 4 Load5 1 Load5 2 Load5 3 Load5 4 Load6 1 Load6 2 Load6 3 Load6 4 Load11 3 Load11 4 Lo...

Page 147: ...er The NO pins are also jumpered to power bus 2 and the NC pins are jumpered to power bus 1 You can easily cut the combs for J802 J807 and J808 J813 to provide bus or pin isolation between the various...

Page 148: ...he load card You may need to hold the load card at an angle to see the printing from the front when the mezzanine cards are installed The Mezzanine ID pins are located in pairs numbered 1 4 at the top...

Page 149: ...the card from the connectors especially when multiple cards are installed Use the indentations on the sides of the card to loosen the card with the prying tool then grasp the card and gently rock it...

Page 150: ...the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wirin...

Page 151: ...Using Load Cards and Loads 5 E6198B Switch Load Unit User Manual 5 83 Figure 5 58 Agilent N9378A UUT Connector...

Page 152: ...mber on the input is brought back out to the input allowing each channel to operate in a general purpose GP configuration This lets you switch in an external power supply while bypassing the power bus...

Page 153: ...3 GPI B J3 Configuration Connector J801 NC J802 J807 NO2 4 NC24 Mezzanine Card Loads NO1 NC1 Load Switches Pwr1 2 NO 24 2 1 24 2 1 5A fuses User installed jumpers Com1 Chan1 Com2 Chan2 Load1 1 Load1 2...

Page 154: ...ad22 2 Load22 1 Load21 2 Load21 1 Load19 2 Load19 1 PB1 PB2 PB4 PB3 24 NC 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 0 NO Ch7 Ch8 Mezzanine Card 2 Uppper Mezzanine Card 3 Uppper Mezzani...

Page 155: ...ected to any of the four power busses on J801 via jumper wires Figure 5 54 The terminal block jumpering allows convenient pull up or pull down of the various inputs It also lets you terminate a UUT lo...

Page 156: ...r Switches as General Purpose Relays for more information Connecting Loads Loads are mounted on the Agilent N9379A s mezzanine cards Figure 5 62 Up to 16 loads can fit on each mezzanine card with two...

Page 157: ...anine cards are installed The Mezzanine ID pins are located in pairs numbered 1 4 at the top of the card This lets you identify each mezzanine card using a four digit binary number least significant d...

Page 158: ...5 90 E6198B Switch Load Unit User Manual 5 Using Load Cards and Loads THIS PAGE IS INTENTIONALLY LEFT BLANK...

Page 159: ...igure and use the Agilent Pin Matrix Cards which slots into the Switch Load unit Register descriptions for these cards are located in Appendix B of this manual NOTE This chapter describes using the Ag...

Page 160: ...imply add more Agilent E8793A 32 Pin Matrix Cards to the bus Features Key features of the cards include 16 x 5 high speed reed relay Instrument Matrix Agilent E8793A only 32 x 4 high speed reed relay...

Page 161: ...gilent E8793A also contains two additional sets of Analog Bus access on connector J1 Other than these differences the two cards are electrically and functionally identical The following discussion app...

Page 162: ...s or other user defined applications For example you can close any of these auxiliary relays to connect a digital sensing source or other low impedance system resource such an event detector or digita...

Page 163: ...OM 96 Pin DIN C To Instruments 96 Pin DIN C Backplane Access To Switch Load Unit 96 Pin DIN C Row Aux UUT Common To UUT 96 Pin DIN C Rear Aux Access Disconnect Relays J2 J1 J3 Bypass Relays 32 x 4 Mea...

Page 164: ...ector Decoding and Driver Circuits 96 Pin DIN C Backplane Access To Switch Load Unit 96 Pin DIN C Row Aux UUT Common To UUT 96 Pin DIN C Rear Aux Access Disconnect Relays J2 J3 Bypass Relays 32 x 4 Me...

Page 165: ...he disconnect relays are either under manual or automatic control When in automatic mode when you close a matrix relay the disconnect relay associated with that column also closes When in manual mode...

Page 166: ...ed to bypass the series protection resistors You can bypass the protection on a column by column basis Reset State The card resets to its default state whenever Operating power is first applied Operat...

Page 167: ...nnel who are aware of the hazards involved should install remove or configure the Switch Load Unit or plug in cards Before you remove any installed card disconnect AC power from the mainframe and from...

Page 168: ...nd INST7 INST8 25 Gnd INST8 INST9 24 Gnd INST9 INST10 23 Gnd INST10 INST11 22 Gnd INST11 INST12 21 Gnd INST12 INST13 20 Gnd INST13 INST14 19 Gnd INST14 INST15 18 Gnd INST15 INST16 17 Gnd INST16 N C 16...

Page 169: ...1 Example Instrument Connections Agilent E3750 61621 E6170 61612 Floating Instruments Agilent E3750 61604 E6170 61614 Single Ended Instruments No Connection Signal Drain Signal Low No Connection INST2...

Page 170: ...6 12 E6198B Switch Load Unit User Manual 6 Using the Pin Matrix Cards Figure 6 7 shows two typical BNC cables used for instrument connetions to J1 J2 Connector Pinouts Figure 6 7 Instrument BNC Cables...

Page 171: ...23 UUT Common System Ground Aux23 22 UUT Common System Ground Aux22 21 UUT Common System Ground Aux21 20 UUT Common System Ground Aux20 19 UUT Common System Ground Aux19 18 UUT Common System Ground Au...

Page 172: ...UUT Common Aux7 Row7 8 UUT Common Aux8 Row8 9 UUT Common Aux9 Row9 10 UUT Common Aux10 Row10 11 UUT Common Aux11 Row11 12 UUT Common Aux12 Row12 13 UUT Common Aux13 Row13 14 UUT Common Aux14 Row14 15...

Page 173: ...Card can be installed in any available Switch Load Unit slot The Analog Bus connection cables require that all 32 Pin Matrix Cards be in adjacent slots so the cables will reach Figure 6 10 shows a ty...

Page 174: ...nnections simply add more Agilent E8783A Pin Matrix Cards to the bus Features Key features of the cards include 24 x 5 high speed reed relay Instrument Matrix and 40 x 4 high speed reed relay Measurem...

Page 175: ...Matrix It also contains two additional sets of Analog Bus access on connector J1 The Agilent E8783A contains 64 x 4 Measurement Matrix only Features Common to Both Cards The Pin Matrix Modules contain...

Page 176: ...user defined applications For example you can close any of these auxiliary relays to connect a digital sensing source or other low impedance system resource such an event detector or digital input car...

Page 177: ...ux39 Aux40 160 Pin DIN C Rear Aux Access J2 J1 96 Pin DIN C To Instrument Abus Access Abus Connector J3 Aux1 Aux2 Aux3 Aux38 Aux39 Aux40 Decoding and Driver Circuits DAC1 DAC2 DACCOM P1 96 Pin DIN C B...

Page 178: ...Aux62 Aux63 Aux64 160 PinDINC Rear AuxAccess J2 AbusConnector J3 Aux1 Aux2 Aux3 Aux62 Aux63 Aux64 DecodingandDriver Circuits P1 96 PinDINC BackplaneAccess ToSwitch LoadUnit P2 160 PinDINC Row Aux UUT...

Page 179: ...the Column Control Protection Bypass Register When executed OAR re triggers the relay timer Reset Bit 0 in the Control Register programmatically resets the card Resetting the card clears all internal...

Page 180: ...ollowing pages shows the pinouts for the Agilent E8782A and E8783A user connectors Figure 6 14 Column Disconnect and Bypass Protection Relays WARNING SHOCK HAZARD Only service trained personnel who ar...

Page 181: ...INST5 INST6 27 Gnd INST6 INST7 26 Gnd INST7 INST8 25 Gnd INST8 INST9 24 Gnd INST9 INST10 23 Gnd INST10 INST11 22 Gnd INST11 INST12 21 Gnd INST12 INST13 20 Gnd INST13 INST14 19 Gnd INST14 INST15 18 Gn...

Page 182: ...ure 6 6 For E8782A the instrument number extends to instrument 24 The typical BNC cables used for instrument connections to J1 J2 Connector Pinouts are shown in Figure 6 7 Figure 6 16 shows the pinout...

Page 183: ...m Ground NC NC 21 Aux12 UUT Common System Ground NC NC 20 Aux13 UUT Common System Ground NC NC 19 Aux14 UUT Common System Ground NC NC 18 Aux15 UUT Common System Ground NC NC 17 Aux16 UUT Common Syste...

Page 184: ...ux14 UUT Common System Ground UUT Common AUX 46 18 Aux15 UUT Common System Ground UUT Common AUX 47 17 Aux16 UUT Common System Ground UUT Common AUX 48 16 Aux17 UUT Common System Ground UUT Common AUX...

Page 185: ...x9 NC UUT Common 10 Row 10 NC Aux10 NC UUT Common 11 Row 11 NC Aux11 NC UUT Common 12 Row 12 NC Aux12 NC UUT Common 13 Row 13 NC Aux13 NC UUT Common 14 Row 14 NC Aux14 NC UUT Common 15 Row 15 NC Aux15...

Page 186: ...Aux13 Aux45 UUT Common 14 Row 14 Row 46 Aux14 Aux46 UUT Common 15 Row 15 Row 47 Aux15 Aux47 UUT Common 16 Row 16 Row 48 Aux16 Aux48 UUT Common 17 Row 17 Row 49 Aux17 Aux49 UUT Common 18 Row 18 Row 50...

Page 187: ...Matrix Card can be installed in any available Switch Load Unit slot The Analog Bus connection cables require that all 64 Pin Matrix Cards be in adjacent slots so the cables will be able to reach each...

Page 188: ...6 30 E6198B Switch Load Unit User Manual 6 Using the Pin Matrix Cards THIS PAGE IS INTENTIONALLY LEFT BLANK...

Page 189: ...r Breakouts 7 4 E8794A Components and Schematics 7 8 The Agilent E8794A Custom Card provides a general purpose breadboard card for system integrators to add custom circuitry The card can also emulate...

Page 190: ...nnels In addition 32 configuration lines are brought from the custom card to the TC connectors on the Test System Interface Figure 7 1 shows the J2 J6 connectors used to route channels and signals to...

Page 191: ...neral purpuse breakout input J3 and J4 route DAC and or Event Detector lines 96 Pin DIN C connector Routes Config Lines to Test System Interface 96 Pin DIN C connector to backplane Brings 12 V Data Ad...

Page 192: ...1604 is used to connect J2 to the Test System Interface WARNING STATIC ELECTRICITY Static electricity is a major cause of component failure To prevent damage to electrical components observe anti stat...

Page 193: ...3 1 CH12 LS CH12 LO CH12 HI CH12 HS CH11 LS CH11 LO CH11 HI CH11 HS CH10 LS CH10 LO CH10 HI CH10 HS CH9 LS CH9 LO CH9 HI CH9 HS CH4 LS CH4 LO CH4 HI CH4 HS CH3 LS CH3 LO CH3 HI CH3 HS CH2 LS CH2 LO CH...

Page 194: ...left breakout connections or J4 right breakout connections Pin Number Signal Pin Number Signal 64 62 60 58 56 54 52 50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 63 61 59 57 5...

Page 195: ...tor breakouts when cable part number E3751 61601 is used to connect the 32 Pin Matrix Card s to J5 and J6 Figure 7 5 J5 and J6 Breakouts 32 Pin Matrix Cards Aux32 J6 UUTCommon J5 J6 J5 Note Pinout for...

Page 196: ...omponents and Schematics Figure 7 6 shows the E8794 layout Figure 7 7 shows a more detailed view for locating components Figure 7 9 shows a schematic view of the E8794A custom card Figure 7 9 shows a...

Page 197: ...Using the Custom Card 7 E6198B Switch Load Unit User Manual 7 9 Figure 7 7 E8794A Component Locator...

Page 198: ...7 10 E6198B Switch Load Unit User Manual 7 Using the Custom Card Figure 7 8 E8794A Schematic...

Page 199: ...Using the Custom Card 7 E6198B Switch Load Unit User Manual 7 11 Figure 7 9 Status and Control Interface...

Page 200: ...7 12 E6198B Switch Load Unit User Manual 7 Using the Custom Card THIS PAGE IS INTENTIONALLY LEFT BLANK...

Page 201: ...4 Agilent E6177A 24 Channel Medium Current Load Card Specifications A 5 Agilent U7177A 24 Channel Medium Current Load Card Specifications A 6 Agilent E6178B 8 Channel Heavy Duty Load Card Specificati...

Page 202: ...imum Combined Power Bus Current all buses 60 A maximum continuous Switch Load Unit to Power Supply Cable Resistance per bus 0 03 standard supplied Agilent cable with connectors included Switch Load Un...

Page 203: ...0 msec maximum 30 cps maximum Peak voltage to Earth 60 V continuous 500 V maximum transient non switching delays to 60V in 200 mS Load carry switching current 7 5 A maximum non switching continuous Lo...

Page 204: ...operate release time 10 8 msec typical 16 10 msec maximum 30 cps max Peak voltage to Earth 60 V continuous 500 V maximum transient non switching delays to 60V in 200 mS Load carry switching current 7...

Page 205: ...of load with standard 0 05 sense resistor and 10 A slo blo fuse installed 5 for load currents 0 1 A Load path relay operate release time 3 3 2 4 msec typical 8 8 msec max 10 cps maximum Peak voltage t...

Page 206: ...elease time 3 3 2 4 msec typical 8 8 msec max 10 cps maximum Peak Voltage to Earth 60 V continuous 500 V maximum transient non switching delays to 60V in 200 mS Load carry switching current 2 A maximu...

Page 207: ...ed 120 A maximum 10 mS 14 Vdc resistive Power Bus Carry Current continuous 30 A maximum Load Switching Power 500 W max 25Vdc max resistive load 100 W max 40Vdc max resistive load Load Switching Voltag...

Page 208: ...mum transient non switching decays to 60V in 200mS Load carry switching current 7 5 A maximum non switching continuous Load carry peak current 15 A max non switching 100 msec 2 duty cycle Load switchi...

Page 209: ...d connect 0 5 maximum Exclusive of load Load path relay operate release time 4 4 msec max 10 cps maximum Peak voltage to Earth 60 V continuous 500 V maximum transient non switching decays to 60V in 20...

Page 210: ...connect 0 5 maximum Exclusive of load Load path relay operate release time 4 4 msec max 10 cps maximum Peak voltage to Earth 60 V continuous 200 V maximum transient non switching decays to 60V in 200...

Page 211: ...ed Bandwidth 10 MHz Minimum Balanced Pair Bandwidth 5 MHz Minimum Parameter Specification Power Requirements Voltage 5 Vdc Capacitance DUT pin to UUT Common Open channel 100 pF Closed channel 300 pF R...

Page 212: ...racteristics Agilent E8792A and E8793A Parameter Specification Type Dry reed Switching Speed Close 500 ms Open 400 ms Switching Characteristics 1 0 A carry 0 5 A while switching 7 5 Volt Amps max inst...

Page 213: ...ance 1 Unbalanced Pair Bandwidth 10MHz Minimum Balanced Pair Bandwidth 5MHz Minimum Parameter Specification Power Requirements Voltage 5 Vdc Capacitance DUT pin to UUT Common Open channel 100 pF Close...

Page 214: ...reduce problems caused by relay failure Use the methods below to determine when a relay may be near failure The best method or combination of methods and the failure criteria depend on the application...

Page 215: ...of life no load Replacement Strategy The best strategy depends on your application Replace individual relays if they are used more often or at higher loads than others If all the relays see similar l...

Page 216: ...A 16 E6198B Switch Load Unit User Manual A Switch Load Unit And Card Specifications THIS PAGE IS INTENTIONALLY LEFT BLANK...

Page 217: ...83 This appendix provides register based programming information for the Agilent E6198B Switch Load Unit backplane the individual load cards the pin cards and the custom card This information can hel...

Page 218: ...ree registers as show in Table B 1 Table B 2 shows the values returned from each card s Card Type register Table B 1 Standard Registers Register Offset Register Name Description 00h Card type See Tabl...

Page 219: ...n slot 20 of the first Switch Load Unit would be Frame 1 0012 Slot 20 101002 Register 0 000000002 Base Address 00110100000000002 or 3400h Agilent E8792A 1010 0Ah Fully loaded pin card includes instrum...

Page 220: ...000002 on the Switch Load Unit selected Table B 3 summarizes the Switch Load Unit registers Table B 3 Switch Load Unit Registers Register Offset Definitions Type Base 0h Card Type Read Only Base 1h Ca...

Page 221: ...tus register provides readback of the current Reset and Busy status of the backplane Busy is an open collector line that any slot can drive to indicate its status typically a relay timer The state of...

Page 222: ...Spare_DigIn 0 Spare_DigIn 7 of the system resource access connector J104 DAC1 Output MSB W Base 8h Writing to the DAC1 Output register sets the Most Significant Bit MSB of the DAC1 digital input DAC1...

Page 223: ...1 to this register wait 5 mS and then write a 0 to this register DACs will reset to 0 Vout NOTE To set the value of the DAC output always write the MSB first followed by the LSB register offset 9h Th...

Page 224: ...e_DigOut 7 outputs will directly reflect the contents of this register 1 high 0 low DAC2 Output MSB W Base Dh Writing to the DAC2 Output register sets the Most Significant Bit MSB of the DAC2 digital...

Page 225: ...ut register sets the Least Significant Bit LSB of the DAC2 digital input NOTE To set the value of the DAC output always write the MSB first followed by the LSB The output of the DAC will not update un...

Page 226: ...control Status control Base 3h Current select Current select Load select 1 8 Current Sense Current select Current select Mezzanin e card 1 config Mezzanin e card 1 config Base 4h Load select 1 8 Load...

Page 227: ...the card follow Base Ch N A N A N A N A N A N A Load select Load select Base Dh N A N A N A N A N A N A Load select Load select Base Eh N A N A N A N A N A N A Load select Load select Base Fh N A N A...

Page 228: ...er reads back the card s status Currently the status is defined as the state of the relay timer The relay timer has two timers wire OR d together One timer is designed for the slower armature relays 1...

Page 229: ...1112 unselected 0012 corresponds to current sense select on channels 1 and 2 0102 corresponds to current sense select on channels 3 and 4 0112 corresponds to current sense select on channels 5 and 6...

Page 230: ...rm C double pole single throw and the register uses positive logic 1 Normally open NO shorted to COM normally closed NC is open 0 NC shorted to COM NO is open The power buses selected depend on how th...

Page 231: ...ack the Card Type 02h of the card Read Only Power On Reset State 02h Card Configuration R Base 1h This register reads back the Card Configuration The Card Configuration is determined by the user to di...

Page 232: ...are not used Valid current sense selection values are 000012 100002 Selecting values 000002 or 100012 111112 will NOT select current sensing for any channel 000012 corresponds to current sense select...

Page 233: ...armature relay timer Write Only State 1 closed 0 open Power On Reset State 0 Power Select 1 8 W Base 6h This register controls the Pull Up Down Power Select armature relays for channels 1 8 These rel...

Page 234: ...orm C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected depend upon how the card is configured by the user Writing to this reg...

Page 235: ...the card follow Card Type R Base 0h This register reads back the Card Type 03h of the card Read Only Power On Reset State 03h Card Configuration R Base 1h This register reads back the Card Configurati...

Page 236: ...r starts the relay timer Write Only State 1 closed 0 open Power On Reset State 0 Load Select 9 16 W Base 4h This register controls the Load Select switch armature relays for channels 9 16 The register...

Page 237: ...nnels 1 8 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configur...

Page 238: ...s register controls the Pull Up Down Power Select armature relays for channels 17 24 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO...

Page 239: ...the Card Type 18h of the card Read Only Power On Reset State 18h Card Configuration R Base 1h This register reads back the Card Configuration The Card Configuration is determined by the user to distin...

Page 240: ...current sense relay to be selected Writing to this register starts the reed relay timer Write Only Undefined bits are not used Valid current sense selection values are 0000012 0110002 Selecting values...

Page 241: ...eset State 0 Load Select 9 16 W Base 5h This register controls the Load Select switch armature relays for channels 9 16 The register uses positive logic 1 closed Writing to this register starts the re...

Page 242: ...ese relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing t...

Page 243: ...orted to COM NC is open 0 NC shorted to COM NO is open Power On Reset State 0 Power Select 17 24 W Base 9h This register controls the Pull Up Down Power Select armature relays for channels 17 24 These...

Page 244: ...inuous current on one channel at a time See Using the Agilent U7177A 24 Channel Load Card for more information Card Type R Base 00h This register reads back the Card Type 04h of the card Card Configur...

Page 245: ...selects are encoded This allows for a single channel to be selected At reset no channel is selected Load Select W Base 04h The register controls the Load Select switch armature relays K1 K8 of the car...

Page 246: ...relay and writing a 0 opens de energizes the relay The reset and power on state for all relays is open The block diagram in Figure shows the location of the various registers CAUTION It is possible t...

Page 247: ...D to read this register Note also that the N9377A load card supports a CC8 bit for offset register base 2h See Status Card Configuration Bit 8 R Base 2h Read Only Undefined bits read back as all 1s FF...

Page 248: ...per slot is allowed these channel selects are encoded This allows selection of zero or only one current sense relay at a time Writing to this register starts the reed relay timer Write Only Undefined...

Page 249: ...adx to Chanx for channels 9 16 See Figure B 10 Write Only State 0 open 1 closed Power On Reset State 0 all channels open Power Select 1 8 W Base 6h This register controls the Pull Up Down Power Select...

Page 250: ...power buses selected depend upon how the card is configured by the user Writing to this register starts the armature relay timer Write Only State 1 NO shorted to Pwr node State 0 NC shorted to Pwr no...

Page 251: ...ent N9378A low resistance load card lets you attach as many as four loads per channel Loads are mounted onboard on a series of mezzanine cards that plug into the load card The N9378A card also provide...

Page 252: ...tInfo to read this register Read Only x undefined Status Control R W Base 2h This register reads back the card s status It also can be used to reset the board or open all relays OAR Card status is def...

Page 253: ...ed Mezzanine Card 1 Configuration R Base 3h This register reads configuration information from the 1 upper and 1 lower mezzanine cards Card configuration is determined by the user to distinguish diffe...

Page 254: ...its 4 7 1 lower card MC1L 0 MC1L 3 Power On Reset State 1 Mezzanine Card 2 Configuration R Base 4h This register reads configuration information from the 2 upper and 2 lower mezzanine cards See Figure...

Page 255: ...information from the 3 upper and 3 lower mezzanine cards Card configuration is determined by the user to distinguish different load configurations There are four bits available for each card which pe...

Page 256: ...osed 0 open Power On Reset State 0 Load Select 5 6 W Base 8h This register controls the power selection relays for channels 5 and 6 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose...

Page 257: ...State 0 Load Select 9 10 W Base Ah This register controls the power selection relays for channels 10 and 9 with four possible loads on each channel Write Only State 1 closed 0 open Power On Reset Sta...

Page 258: ...n Power On Reset State 0 Load Select 15 16 W Base Dh This register controls the power selection relays for channels 16 and 15 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose Chan1...

Page 259: ...e 0 Load Select 19 20 W Base Fh This register controls the power selection relays for channels 20 and 19 with four possible loads on each channel Write Only State 1 closed 0 open Power On Reset State...

Page 260: ...each channel Write Only State 1 closed 0 open Power On Reset State 0 Power Select 1 8 W Base 12h This register controls the Pull Up Down Power Select armature relays for channels 1 8 These relays are...

Page 261: ...0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Write Only State 1 NO shorted to Pwr node State 0...

Page 262: ...ation Loads are mounted onboard on a series of mezzanine cards that plug into the load card You can attach as many as two loads per channel See Using the Agilent N9379A 48 Channel High Density Load Ca...

Page 263: ...e card s status It also can be used to reset the board or open all relays OAR Card status is defined as the state of the relay timer The relay timer is designed for the armature relays 4ms The timer r...

Page 264: ...s available for each card which permits identification of the mezzanine card location and proper orientation Use the action loadCardGetInfo to read this register Figure B 12 shows the layout of the me...

Page 265: ...fault read back is FFh but you can pull down bits to zero as required to create a configuration byte unique to the loads installed Read Only Lower nibble bits 0 3 1 upper card MC2U 0 MC2U 3 Upper nibb...

Page 266: ...ach channel Write Only State 1 closed 0 open Power On Reset State 0 Load Select 5 8 W Base 7h This register controls the power selection relays for channels 5 through 8 with two possible loads on each...

Page 267: ...Select 13 16 W Base 9h This register controls the power selection relays for channels 13 through 16 with two possible loads on each channel Write Only State 1 closed 0 open Power On Reset State 0 Bit...

Page 268: ...pen Power On Reset State 0 Load Select 25 28 W Base Ch This register controls the power selection relays for channels 25 through 28 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose...

Page 269: ...e 0 Load Select 33 36 W Base Eh This register controls the power selection relays for channels 33 through 36 with two possible loads on each channel Write Only State 1 closed 0 open Power On Reset Sta...

Page 270: ...pen Power On Reset State 0 Load Select 44 48 W Base 11h This register controls the power selection relays for channels 45 through 48 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose...

Page 271: ...to Pwr node Power On Reset State 0 all channels connected to NC Power Select 17 32 W Base 13h This register controls the Pull Up Down Power Select armature relays for channels 17 32 Each bit controls...

Page 272: ...o channels These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configu...

Page 273: ...92A returns a card type of 1010 dddd 1010 Agilent E8793A returns card type of 1110 dddd 1011 Card Configuration R Base 1h Pin card configuration register and firmware revision FWR register Initial fir...

Page 274: ...ed to low side of DMM ISensRly 0 opens relay from Inst16 Spare16 to ISense default 1 closes relay from Inst16 Spare16 to Isense OAR 0 causes no change 1 causes all relays to open NOTE See description...

Page 275: ...elays Not Used Base 5h NOTE The only difference between OAR and Reset is OAR leaves the state of Manual the same Reset clears the Manual setting NOTE Register offset 3h used only for a placeholder to...

Page 276: ...9 16 W Base Bh 1110 Bits 7 6 5 4 3 2 1 0 Write Aux8 Aux7 Aux6 Aux5 Aux4 Aux3 Aux2 Aux1 Bits 7 6 5 4 3 2 1 0 Write Aux16 Aux15 Aux14 Aux13 Aux12 Aux1 Aux10 Aux9 Bits 7 6 5 4 3 2 1 0 Write Aux24 Aux23...

Page 277: ...e 11h 1710 Bits 7 6 5 4 3 2 1 0 Write Row24 Row23 Row22 Row21 Row20 Row19 Row18 Row17 Bits 7 6 5 4 3 2 1 0 Write Row32 Row31 Row30 Row29 Row28 Row27 Row26 Row25 Bits 7 6 5 4 3 2 1 0 Write Row8 Row7 Ro...

Page 278: ...9 16 W Base 17h 2310 Bits 7 6 5 4 3 2 1 0 Write Row8 Row7 Row6 Row5 Row4 Row3 Row2 Row1 Bits 7 6 5 4 3 2 1 0 Write Row16 Row15 Row14 Row13 Row12 Row11 Row10 Row9 Bits 7 6 5 4 3 2 1 0 Write Row24 Row2...

Page 279: ...lay 9 16 W Base 1Bh 2710 Abus1 to Instrument Bus Instrument Relay 1 8 W Base 1Ch 2810 Bits 7 6 5 4 3 2 1 0 Write Row24 Row23 Row22 Row21 Row20 Row19 Row18 Row17 Bits 7 6 5 4 3 2 1 0 Write Row32 Row31...

Page 280: ...ument Bus Instrument Relay 1 8 W Base 22h 3410 Bits 7 6 5 4 3 2 1 0 Write Inst16 Inst15 Inst14 Inst13 Inst12 Inst1 Inst10 Inst9 Bits 7 6 5 4 3 2 1 0 Write Inst8 Inst7 Inst6 Inst5 Inst4 Inst3 Inst2 Ins...

Page 281: ...atrix card with auxiliary returns a card type of 6710 ddddddd 1000011 Card Configuration R Base 1h Instrument matrix card configuration and firmware revision FWR register Initial firmware revision 0h...

Page 282: ...Not Used Base 3h Register offset 3h used only for placeholder to make software addressing simpler Abus control and protection bypass relay W Base 4h Instrument matrix card Abus and protection bypass r...

Page 283: ...ay 9 16 W Base Ah 1010 Auxilary Relay 17 24 W Base Bh 1110 Bits 7 6 5 4 3 2 1 0 Write Inst16 Inst15 Inst14 Inst13 Inst12 Inst11 Inst10 Inst9 Bits 7 6 5 4 3 2 1 0 Write Inst24 Inst23 Inst22 Inst21 Inst...

Page 284: ...0 Instrument Relay 17 24 W Base 10h 1610 Bits 7 6 5 4 3 2 1 0 Write Aux32 Aux31 Aux30 Aux29 Aux28 Aux27 Aux26 Aux25 Bits 7 6 5 4 3 2 1 0 Write Aux40 Aux39 Aux38 Aux37 Aux36 Aux35 Aux34 Aux33 Bits 7 6...

Page 285: ...0 Row Relay 33 40 W Base 15h 2110 Bits 7 6 5 4 3 2 1 0 Write Row8 Row7 Row6 Row5 Row4 Row3 Row2 Row1 Bits 7 6 5 4 3 2 1 0 Write Row16 Row15 Row14 Row13 Row12 Row11 Row10 Row9 Bits 7 6 5 4 3 2 1 0 Writ...

Page 286: ...W Base 19h 2510 Row Relay 9 16 W Base 1Ah 2610 Bits 7 6 5 4 3 2 1 0 Write Inst8 Inst7 Inst6 Inst5 Inst4 Inst3 Inst2 Inst1 Bits 7 6 5 4 3 2 1 0 Write Inst16 Inst15 Inst14 Inst13 Inst12 Inst11 Inst10 I...

Page 287: ...Instrument Relay 9 16 W Base 1Fh 3110 Bits 7 6 5 4 3 2 1 0 Write Row24 Row23 Row22 Row21 Row20 Row19 Row18 Row17 Bits 7 6 5 4 3 2 1 0 Write Row32 Row31 Row30 Row29 Row28 Row27 Row26 Row25 Bits 7 6 5...

Page 288: ...se 25h 3710 Bits 7 6 5 4 3 2 1 0 Write Inst24 Inst23 Inst22 Inst21 Inst20 Inst19 Inst18 Inst17 Bits 7 6 5 4 3 2 1 0 Write Row8 Row7 Row6 Row5 Row4 Row3 Row2 Row1 Bits 7 6 5 4 3 2 1 0 Write Row16 Row15...

Page 289: ...W Base 29h 4110 Row Relay 9 16 W Base 2Ah 4210 Bits 7 6 5 4 3 2 1 0 Write Inst8 Inst7 Inst6 Inst5 Inst4 Inst3 Inst2 Inst1 Bits 7 6 5 4 3 2 1 0 Write Inst16 Inst15 Inst14 Inst13 Inst12 Inst11 Inst10 I...

Page 290: ...tracking must be done in software Card Type R Base 0h Returns measurement matrix card type Measurement matrix card without auxiliary returns a card type of 7010 ddddddd 1000110 Measurement matrix car...

Page 291: ...ses board reset and triggers the relay timer Clears itself afterward Not Used Base 3h Register offset 3h used only for placeholder to make software addressing simpler Abus control and protection bypas...

Page 292: ...16 W Base 7h Auxilary Relay 17 24 W Base 8h Auxilary Relay 25 32 W Base 9h Auxilary Relay 33 40 W Base Ah 1010 Bits 7 6 5 4 3 2 1 0 Write Aux8 Aux7 Aux6 Aux5 Aux4 Aux3 Aux2 Aux1 Bits 7 6 5 4 3 2 1 0...

Page 293: ...Eh 1410 Row Relay 9 16 W Base Fh 1510 Bits 7 6 5 4 3 2 1 0 Write Aux48 Aux47 Aux46 Aux45 Aux44 Aux43 Aux42 Aux41 Bits 7 6 5 4 3 2 1 0 Write Aux56 Aux55 Aux54 Aux53 Aux52 Aux51 Aux50 Aux49 Bits 7 6 5...

Page 294: ...10 Bits 7 6 5 4 3 2 1 0 Write Row24 Row23 Row22 Row21 Row20 Row19 Row18 Row17 Bits 7 6 5 4 3 2 1 0 Write Row32 Row31 Row30 Row29 Row28 Row27 Row26 Row25 Bits 7 6 5 4 3 2 1 0 Write Row40 Row39 Row38 Ro...

Page 295: ...ase 1Bh 2710 Bits 7 6 5 4 3 2 1 0 Write Row8 Row7 Row6 Row5 Row4 Row3 Row2 Row1 Bits 7 6 5 4 3 2 1 0 Write Row16 Row15 Row14 Row13 Row12 Row11 Row10 Row9 Bits 7 6 5 4 3 2 1 0 Write Row24 Row23 Row22 R...

Page 296: ...ase 21h 3310 Bits 7 6 5 4 3 2 1 0 Write Row56 Row55 Row54 Row53 Row52 Row51 Row50 Row49 Bits 7 6 5 4 3 2 1 0 Write Row64 Row63 Row62 Row61 Row60 Row59 Row58 Row57 Bits 7 6 5 4 3 2 1 0 Write Row8 Row7...

Page 297: ...ase 27h 3910 Bits 7 6 5 4 3 2 1 0 Write Row40 Row39 Row38 Row37 Row36 Row35 Row34 Row33 Bits 7 6 5 4 3 2 1 0 Write Row48 Row47 Row46 Row45 Row44 Row43 Row42 Row41 Bits 7 6 5 4 3 2 1 0 Write Row56 Row5...

Page 298: ...10 Bits 7 6 5 4 3 2 1 0 Write Row24 Row23 Row22 Row21 Row20 Row19 Row18 Row17 Bits 7 6 5 4 3 2 1 0 Write Row32 Row31 Row30 Row29 Row28 Row27 Row26 Row25 Bits 7 6 5 4 3 2 1 0 Write Row40 Row39 Row38 Ro...

Page 299: ...alue configuration Control register W Base 2h Writing a 1 to bit seven generates a reset pulse duration 250 nS which you can use to reset on board circuitry The reset pulse is self clearing Digital In...

Page 300: ...drain with a light pull up 100 k ohm Writing a 1 sets the output of a open collector driver on meaning that the output voltage is pulled low The reset state of this register is 0h all outputs off This...

Page 301: ...C 1 Agilent TS 5000 E6198B Switch Load Unit User Manual Agilent Technologies C Repair Information Support Strategy C 2 Locating Load Card Components C 2...

Page 302: ...can determine which relay is defective you can repair the module The relays are through hole technology and easy to replace Locating Load Card Components Agilent E6175A 8 Channel High Current Card Se...

Page 303: ...Repair Information C E6198B Switch Load Unit User Manual C 3 Figure C 1 Agilent E6175A Component Locator Rear View...

Page 304: ...the E6176A The component locator diagram Blue Figure shows the solder side or back of the Agilent E3750 66504 through hole PC board This load card uses the 0490 1517 Form C relay Two Agilent 0490 183...

Page 305: ...n relays Individual relays can be replaced on the Agilent E8792A and E8793A 32 pin matrix modules All relays are 5V 1A reed relays The Agilent part number for an 8 pack of relays is 0490 1838 The tabl...

Page 306: ...8 K418 K518 Row19 K119 K219 K319 K419 K519 Row20 K120 K220 K320 K420 K520 Row21 K121 K221 K321 K421 K521 Row22 K122 K222 K322 K422 K522 Row23 K123 K223 K323 K423 K523 Row24 K124 K224 K324 K424 K524 Ro...

Page 307: ...07 K1407 K1007 Inst8 K1108 K1208 K1308 K1408 K1008 Inst9 K1109 K1209 K1309 K1409 K1009 Inst10 K1110 K1210 K1310 K1410 K1010 Inst11 K1111 K1211 K1311 K1411 K1011 Inst12 K1112 K1212 K1312 K1412 K1012 In...

Page 308: ...lumn3 Abus3 is K305 Relay component numbers are silk screened on the back of the PC board Note that E8782A with ID 6610 and E8783A with ID 7010 do not have Row to Aux relays Table C 5 Measurement Matr...

Page 309: ...2 K232 K332 K432 K932 Row9 K133 K233 K333 K433 K933 Row10 K134 K234 K334 K434 K934 Row11 K135 K235 K335 K435 K935 Row12 K136 K236 K336 K436 K936 Row13 K137 K237 K337 K437 K937 Row14 K138 K238 K338 K43...

Page 310: ...3 K363 K463 K963 Row40 K164 K264 K364 K464 K964 Table C 6 Measurement Matrix Relays for E8783A Column1 Abus1 Column2 Abus2 Column3 Abus3 Column4 Abus4 Row to Aux Row1 K101 K201 K301 K401 K901 Row2 K10...

Page 311: ...27 K227 K327 K427 K927 Row28 K128 K228 K328 K428 K928 Row29 K129 K229 K329 K429 K929 Row30 K130 K230 K330 K430 K930 Row31 K131 K231 K331 K431 K931 Row32 K132 K232 K332 K432 K932 Row33 K133 K233 K333 K...

Page 312: ...ow55 K155 K255 K355 K455 K955 Row56 K156 K256 K356 K456 K956 Row57 K157 K257 K357 K457 K957 Row58 K158 K258 K358 K458 K958 Row59 K159 K259 K359 K459 K959 Row60 K160 K260 K360 K460 K960 Row61 K161 K261...

Page 313: ...G 1 Agilent TS 5000 E6198B Switch Load Unit User Manual Agilent Technologies Glossary Of Terms...

Page 314: ...back up to the UUT load side of the card and jumpering a channel s internal load terminals allows the user to utilize the load switch as a GP relay Current Sensing Determining the current through a f...

Page 315: ...removing jumper plugs on JP1 JP2 and JP3 Current sensing is performed on any load card channel across a four terminal current sense resistor Two load cards are designed to connect to the current sense...

Page 316: ...tacts A Form C Single Pole Double Throw switch has two possible states The default or un powered state is its normal state The two terminals on the switch are therefore called normally open or normall...

Page 317: ...ment or system on itself to verify the functionality of the instrument or system Sense See Current sensing Slot Decode Logic The circuitry that interprets the data that represents the physical slot a...

Page 318: ...G 6 E6198B Switch Load Unit User Manual G Glossary Of Terms THIS PAGE IS INTENTIONALLY LEFT BLANK...

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