Edition 4 (E8770-90020 Revision 2) mance of this document or of any met. January 2006 information contained herein. Should Agilent and the user have a separate This manual covers the written agreement with warranty following Agilent WA R N I N G...
Operator Safety Information Safety Symbols and Regulatory Markings End of Life: Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC Switch/Load Unit and Plug-In Cards E6198B Standalone/Integrated Switch/Load Unit Rating Electrical Mechanical E6198B Standalone Switch/Load Unit Description USB Interface Digital I/O...
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Connecting an Additional (Spare) Power Supply Configuring the Power Busses Setting the UUT Power Supply Remote/Local Sense Jumpers Configuring the Current-Sense Jumpers 4-10 Connecting E6198B to the Computer via USB Interface or Parallel Port 4-12 Adding a Second Switch/Load Unit 4-13...
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Local / Remote Sensing 5-57 Selecting a Load Fuse 5-57 Current Monitor 5-58 Selecting and Loading Flyback Protection 5-58 Protection Devices 5-59 Load and UUT Connections 5-60 Using the Agilent N9377A 16-Channel Dual-Load Load Card 5-62 E6198B Switch/Load Unit User Manual...
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5-73 Current Sharing 5-74 External Load Mounting Options 5-74 UUT Connections 5-75 Using the Agilent N9378A 24-Channel Low Resistance Load Card 5-76 Selecting a Power Supply Configuration 5-79 Using the Power Switches as General Purpose Relays 5-79 Connecting Loads 5-80...
List of Figures Legal Information Safety and Regulatory Information Switch/Load Unit and Plug-In Cards Figure 3-1. Agilent E6198B Standalone Switch/Load Unit Front View Figure 3-2. Agilent E6198B Standalone Switch/Load Unit Back View Figure 3-3. Digital Input Example Figure 3-4. Digital Output Example Figure 3-5.
List of Tables Legal Information Table 1-1. Agilent Sales And Support Contact Numbers Safety and Regulatory Information Table 2-1. Environment Requirements Table 2-2. Safety Symbols and Regulatory Markings Switch/Load Unit and Plug-In Cards Table 3-1. Switch/Load Unit Rating (Electrical) Table 3-2. Switch/Load Unit Rating (Mechanical) Table 3-3.
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Table C-3. Bypass and Disconnect Relays Table C-4. Miscellaneous Relays Table C-5. Measurement Matrix Relays for E8782A Table C-6. Measurement Matrix Relays for E8783A C-10 Table C-7. Bypass and Disconnect Relays for E8782A and E8783A C-12 Glossary Of Terms E6198B/E6218A Switch/Load Unit User Manual...
Agilent TS-5000 E6198B Switch/Load Unit User Manual Declaration of Conformity Agilent Technologies...
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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/search.htm If you are unable to locate the DoC, please contact your local Agilent N O T E representative. E6198B Switch/Load Unit User Manual...
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Agilent TS-5000 E6198B Switch/Load Unit User Manual Legal Information Warranty Technology Licenses Restricted Rights Legend Service And Support Agilent On The Web Agilent By Phone Agilent Technologies...
Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms, the warranty terms in the separate agreement shall control.
Agilent By Phone If you do not have access to the Internet, call one of the numbers in Table 1-1 Table 1-1 Agilent Sales And Support Contact Numbers Canada (877) 894-4414 Americas Latin America...
Legal Information Table 1-1 Agilent Sales And Support Contact Numbers (continued) Austria 01 36027 71571 Belgium 32 (0) 2 404 93 40 Denmark 45 70 13 15 15 Finland 358 (0) 10 855 2100 0825 010 700* France *0.125 €/minute...
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Agilent TS-5000 E6198B Switch/Load Unit User Manual Safety and Regulatory Information Safety Information Safety Summary Safety Notice General Environmental Conditions Before Applying Power Ground The System Fuses Operator Safety Information Safety Symbols and Regulatory Markings End of Life: Waste Electrical and Electronic Equipment (WEEE) Directive...
Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Agilent Technologies, Inc. assumes no liability for the customer's failure to comply with these requirements.
(High, Low or Guard). Assure the equipment under test has adequate insulation WA RNING between the cable connections and any operator-accessible parts (doors, covers, panels shields, cases, cabinets, etc.) E6198B Switch/Load Unit User Manual...
Protective earth (ground) terminal Frame or chassis terminal Terminal is at earth potential. Used for measurement and control circuits designed to be operated with one terminal at earth potential. Switch setting indicator. O = Off, | = On. E6198B Switch/Load Unit User Manual...
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The CE mark is a registered trademark of the European Community. This CE mark shows that the product complies with all the relevant European Legal Directives. E6198B Switch/Load Unit User Manual...
With reference to the equipment types in the WEEE directive Annex 1, this product is classified as a “Monitoring and Control Instrumentation” product. Do not dispose in domestic household waste To return unwanted products, contact your local Agilent office, or see: http://www.agilent.com/environment/product for more information.
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Safety and Regulatory Information THIS PAGE IS INTENTIONALLY LEFT BLANK. E6198B Switch/Load Unit User Manual...
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Backplane And Breakout Board Connectors and LEDs 3-10 Differentiating E6198B Standalone Option and System Integrated Option 3-21 This chapter gives an overview of the Agilent E6198B (Standalone and Integrated) Switch/Load Unit (SLU), load cards, and other associated equipment. Agilent Technologies...
Switch/Load Unit and Plug-In Cards E6198B Standalone/Integrated Switch/Load Unit Rating Electrical Table 3-1 Switch/Load Unit Rating (Electrical) Parameter Value Input Voltage 100–240 VAC nominal Frequency 50/60 Hz Power 325 W maximum Mechanical Table 3-2 Switch/Load Unit Rating (Mechanical) Parameter Value Width 484.64 mm...
Figure 3-1 consists of a standard VME type enclosure, a custom high current backplane, and slots for up to 21 optional Agilent plug-in cards. The following plug-in cards are available: • Agilent E6175 8-channel load card • Agilent E6176A 16-channel load card •...
Switch/Load Unit and Plug-In Cards Figure 3-1 Agilent E6198B Standalone Switch/Load Unit Front View Figure 3-2 Agilent E6198B Standalone Switch/Load Unit Back View In addition to holding load cards, pin matrix cards and custom cards, the Switch/Load Unit also provides the following capabilities.
(Spare Digital Out). There is no handshaking capability in the digital I/O. Typical usage of the digital I/O includes: Automation control Digital control of circuitry on the Agilent E8794A Custom Card Digital switches (for example, to indicate door open/closed) Actuator control...
+5V, +12V and -12V from the Switch/Load Unit Power Supply. The +5V supply can deliver 7.5A to 30A, +12V supply can deliver 2.5A to 12.5A, the -12V supply can deliver 700mA to 1A. You can E6198B Switch/Load Unit User Manual...
“Connecting an Additional (Spare) Power Supply for details. Power supplies +5V, +12V and -12V for E6198B have non-resettable N O T E fuses. Spare supply has resettable fuse. If an overload occurs, the fuse(s) open. To reset the fuse(s), remove power from the Switch/Load Unit for approximately 20 seconds.
Load Card #2 Pin Matrix Card #2 Load Card #n Pin Matrix Card #n Note: All plug -in cards are optional --the mix and numbers of cards in your system will be different than shown here E6198B Switch/Load Unit User Manual...
Switch/Load Unit and Plug-In Cards E6198B Integrated Switch/Load Unit Description 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 function selection panel.
LEDs. These components are described 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) 3-10 E6198B Switch/Load Unit User Manual...
Figure 3-8 Switch/Load Unit Breakout Board Connectors (Standalone only) S2A-S2H S3A-S3F S1A-S1D FRONT BACK BREAKOUT BOARD (External Board) The breakout panel is available with the E6198B Standalone option and is easily accessible from the SLU rear. E6198B Switch/Load Unit User Manual 3-11...
Switch/Load Unit and Plug-In Cards Backplane Connector Name Table 3-3 lists the connectors on a E6198B backplane. Table 3-3 Backplane Connectors for E6198B E6198B Reference Designator Description SLU Current Sense: Bussed/Split SLU Power Bus Sense Select: Local/Remote Frame Select T1-T14...
S1A-S1D Toggle switches for Local/Remote S2A-S2H Toggle switches for Frame Select S3A-S3F Toggle switches for Isense Bussed/Split The breakout board is not available with E6198B System Integrated N O T E option. See Figure 3-6. E6198B Switch/Load Unit User Manual...
J801 and J802 provide the high power connections to power busses PB1-PB4. Three supplies with a common connection to PB1 or two independent supplies can be configured on the four power busses. Bulk bypassing between power busses may be desirable in certain applications. 3-14 E6198B Switch/Load Unit User Manual...
Switch/Load Unit backplane connector J102 carries such signals as the Digital I/O, DAC 1 and 2, and the ISense (current sense) lines. When configured as part of a standard Agilent system, J102 of the Switch/Load Unit is connected via cable to a mass interconnect panel.
4 8 4 5 3 9 3 6 3 0 2 7 2 4 2 1 1 5 1 2 For E6198B Standalone option, connector J102 is extended from the N O T E backplane to the breakout board. See Figure 3-8.
Row 27 -12 Vdc Supply Spare Supply Row 28 System Gnd System Gnd Row 29 System Gnd System Gnd Row 30 No Connection No Connection Row 31 System Gnd DAC1 Row 32 System Gnd DAC2 E6198B Switch/Load Unit User Manual 3-17...
Two or more sets of the above lines can be bussed together select from toggle switches. Refer to page 12 for details. Power Bus Sense 1 - 4 The remote sense lines for the power supplies connected to power buses 1 - 4. Chassis ground of the Switch/Load Unit. 3-18 E6198B Switch/Load Unit User Manual...
Local 1 is selected if LOC_S1 is connected with PB1; Remote 1 is selected if REM_S1 is connected with PB1, and so on. Default setting for J3 is Local. Table 3-9 Switch/Load Unit J3 Pinout LOC_S1 REM_S2 LOC_S3 REM_S4 LOC_S1 REM_S1 LOC_S2 REM_S3 LOC_S4 E6198B Switch/Load Unit User Manual 3-19...
T1-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 Jumper Input Voltage -12V +12V +12V +12V 3-20 E6198B Switch/Load Unit User Manual...
Switch/Load Unit and Plug-In Cards Differentiating E6198B Standalone Option and System Integrated Option The key differences between standalone and system integrated option can be found at the SLU rear cover. On a standalone unit, the backplane connectors are extended to the breakout board attached to the SLU rear cover.
Switch/Load Unit and Plug-In Cards Fuse Ratings Fuses are incorporated inside E6198B Switch/Load Unit. There are 10 fuses and 7 fuses for Standalone SLU and Integrated SLU respectively. Please refer Table 3-11 for more detail. Table 3-11 Fuses Ratings Standalone...
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Switch/Load Unit and Plug-In Cards THIS PAGE IS INTENTIONALLY LEFT BLANK. 3-24 E6198B Switch/Load Unit User Manual...
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E6198B Switch/Load Unit User Manual Configuring the Switch/Load Unit Card Location Recommendations Connecting an Additional (Spare) Power Supply Configuring the Power Busses Connecting E6198B to the Computer via USB Interface or Parallel Port 4-12 Adding a Second Switch/Load Unit 4-13...
By adopting these installation defaults, consistency from system to system is maintained. As well, locations are reserved for future expansion if required. For a single Agilent E6198B Switch/Load Unit installed in the system · Install matrix cards first. Slots 15 through 21 are reserved for the matrix and custom modules.
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Install any Agilent E6176A cards next. • Agilent N9377A 16-Channel Load Cards Install any Agilent N9377A cards next. To allow for future expansion, leave an open slot after the last N9377A card. • Agilent E6178B 8-Channel Heavy Duty Load Cards Agilent E6178B 8 channel Heavy Duty cards require 2 slots each.
Load Card 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" more information. E6198B Switch/Load Unit User Manual...
Figure 4-3 Figure 4-3 Spare Supply (Input) Connector on SLU rear (SLU standalone). For SLU System Integrated Option, it is necessary to remove the SLU rear cover to access the Spare Supply connector on the backplane. E6198B Switch/Load Unit User Manual...
Power Bus 1 (PB1). This is the factory default configuration. The grounds for all three supplies are connected together on connector J801. Figure 4-5 Example A: Three Separate Supplies on PB1 - PB4 +12V -12V E6198B Switch/Load Unit User Manual...
Figure 4-7. Figure 4-7 DC Power Bus Connector Of Standalone SLU Power Bus 2 Power Bus 1 Power Bus 3 Power Bus 4 PB Sense 1 PB Sense 3 PB Sense 2 PB Sense 4 E6198B Switch/Load Unit User Manual...
A conceptional view of both types of sensing is shown in Figure 4-8. Figure 4-8 Conceptional View of Local/Remote Sensing Set the power supply sense jumpers in the LOCAL position for sensing the power supply outputs at the PB1 - PB4 terminals. E6198B Switch/Load Unit User Manual...
4-9. Figure 4-9 PB Sense Remote/Local Interface (Standalone SLU) For Integrated, use Jumper to select the mode on PB Sense Remote/Local. See Figure 4-10. Figure 4-10 PB Sense Remote/Local and Frame Select Interface (Integrated SLU) E6198B Switch/Load Unit User Manual...
This can lead to a power bus to power bus short, causing confused and incorrect readings. Figure 4-11 shows the ISense Bussed/Split interface for Standalone SLU. Toggle the switch to choose either Bussed or Split mode. Figure 4-11 ISense Bussed/Split Interface (Standalone SLU) 4-10 E6198B Switch/Load Unit User Manual...
Figure 4-12 ISense Bussed/Split Interface (Integrated SLU) Ensure Load Cards that will be accessed simultaneously for current-sense N O T E readings are located in slots that do not share a common current-sense bus. E6198B Switch/Load Unit User Manual 4-11...
Configuring the Switch/Load Unit Connecting E6198B 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 the PC controller using a standard USB cable.
Address 0. As an example, you can leave the address of the first Switch/Load Unit set to 0 and set the address of the second Switch/Load Unit to 1. Figure 4-14 Frame Select Interface (Standalone SLU) E6198B Switch/Load Unit User Manual 4-13...
• Spacers are only required for the first loadbox (to clear the door latch). • Check the build list for the number of load boxes (E6198B) required. If a second load box (Option E6198B-FG) is required, another set of rails will need to be installed. Allow space for the first load box and 1 EIA space for venting between the two load boxes.
Using the Agilent E6178B 8-Channel Load Card 5-54 Using the Agilent N9377A 16-Channel Dual-Load Load Card 5-62 Using the Agilent N9378A 24-Channel Low Resistance Load Card 5-76 Using the Agilent N9379A 48-Channel High-Density Load Card 5-84 This chapter discusses how to configure load cards and how to use loads with the various load cards.
The card is two slots wide to allow mounting of larger loads. • The Agilent E6176A 16-Channel High Current Load Card is a single-slot design, requiring externally mounted loads. This...
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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 high current applications of up to 30A per channel.
• Power Supply • Load Card • Loads • Unit Under Test (UUT) Figure 5-1 Loads/Sources Conceptual Overview Simplified Load Card Power Bus 2 Unit Under Test Power Supply Power Bus 1 External Loads and Shorts E6198B Switch/Load Unit User Manual...
Agilent E6177A 24-Channel: Card Type is 3 Agilent U7177A 24-Channel: Card Type is 24 Agilent U7177A 8-Channel Heavy Duty: Card Type is 4 Agilent N9378A 24-Channel Low Resistance: Card Type is 5 Agilent N9379A 48-Channel High Density: Card Type is 6...
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FF Grounding selected pins creates binary codes which can be read loadCardGetInfo back through the interface using the action. See the TS-5000 System Software User’s Guide for more information. E6198B Switch/Load Unit User Manual...
• The card is two slots wide (4 cm./1.6 inches) to allow mounting of larger loads. Due to its high current capability, it is recommended that you mount it on the left side (slots 1-4) of the Agilent E6198B Switch/Load Unit enclosure, closest to the incoming power buses. “Card Location Recommendations"...
Using Load Cards and Loads Figure 5-4 Agilent E6175A 8-Channel Load Card Layout Selecting a Power Supply Configuration Each channel pair connects to the power bus via a Form C SPDT (single-pole, double-throw) relay. This relay has an NO (normally-open) 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.
J4 jumper comb to eliminate possible power bus interaction. Selecting a Current-Sense Method There are two ways to measure current on the Agilent E6175A 8-Channel Load Card; using a sense resistor, or using a LA 25-NP current transducer from LEM Inc.
C A U T I O N Agilent E6175A PC board. Install the LEM module. Install the measuring resistor, R2 (preferably a 100 , 0.1% resistor). Install the shorting jumper from R2 to ground, TP41 to TP42. E6198B Switch/Load Unit User Manual 5-11...
Install the appropriate primary-coil range jumpers. See Figure 5-7. Use a wire gauge appropriate for the current through the load. N O T E Figure 5-6 Component Location for Installing LEM Current Transducer Module 5-12 E6198B Switch/Load Unit User Manual...
* This load card was tested with a LEM Model LA25-NP Current Transducer from LEM USA, Inc. 6643 West Mill Road, Milwaukee, WI, 53218. (414) 353-0711 E6198B Switch/Load Unit User Manual 5-13...
, may results in peak damage to the load card or SLU. The Agilent E6175A 8-Channel Load Card comes with provisions for user-installed flyback voltage protection. Figure 5-9 is a detail of the first channel pair, channels 1 and 2, on the component locator diagram of the 8-Channel Load Card.
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 5-9 Agilent E6175A Flyback Protection Polarity E6198B Switch/Load Unit User Manual 5-15...
UUT and the load card. Figure 5-10 Typical Agilent E6175A Load Card Flyback Protection Circuit Typical small MOV (3mm) axial lead mounted specifications are: Continuous DC voltage: 220 V †...
Sample Load Configurations Four sets of tandem loads, each set sharing a current-sense resistor, may be mounted on the Agilent E6175A Load Card. You may need to drill holes in the sheet metal to attach the loads. On the eight-channel load card, the pairs are labeled 1 through 4 on the PC board silkscreen.
Using Load Cards and Loads shown by J6-1, J6-2, J7-3 and J7-4. Both the power source and return are assumed to be switched through another load card to the UUT. Figure 5-11 Agilent E6175A Load Examples Mother Board Configuration *1 are connected together...
Figure 5-12 Bridge Configuration for Channels 7 and 8 on 8-Channel Load Card Use the following table to determine the appropriate pins on J6 and J7 to jumper to create a bridge circuit on the indicated channels. E6198B Switch/Load Unit User Manual 5-19...
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 mounting area and connectors J1 and Figure 5-13 Agilent E6175A Load Mounting Area and P1/J1 Connectors Load Mounting Area 5-20...
(>3 amp) loads to P1, wire across all three pins in each row (see Figure 5-15 on page 22). Figure 5-14 Agilent E6175A Load Wiring Schematic and P1 Pinouts P1 Connector (Wiring Terminal View) Even # Rows Odd # Rows...
P1 (see Figure 5-15). This ensures current sharing across all pins and prevents premature pin failure from excessive current flow. Figure 5-15 Agilent E6175A Current Sharing Example P1 Connector (Wiring Terminal View) Load 1 Row 16...
Using Load Cards and Loads UUT Connections When configured as part of a standard Agilent system, P2 of 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 wiring guide for connection details.
Using Load Cards and Loads Using the Agilent E6176A 16-Channel Load Card A block diagram of the Agilent E6176A 16-Channel High-Current Load Card is shown in Figure 5-17. The load card layout is shown in Figure 5-18. The single-slot design offers high load density for high-current loads where current transducers and bridge drive configurations are not required.
Using Load Cards and Loads Figure 5-18 Agilent E6176A 16-Channel Load Card Layout Selecting a Power Supply Configuration Each channel connects to the power bus via a Form C SPDT (single pole, double throw) relay. This relay has a NO (normally-open) and a NC (normally-closed) terminal.
UUT is tested. The system integrator is responsible for ensuring the flyback protection devices are installed on the load cards. 5-28 E6198B Switch/Load Unit User Manual...
500 V , may results in peak damage to the load card or SLU. The Agilent E6176A Load Card comes with provisions for user-installed flyback voltage protection. Figure 5-40 is a detail of the first two channels on the component locator diagram of the load card.
UUT's internal protection. If the device's internal protection fails, then the added external protection conducts to protect the UUT and the load card. * The card was tested using a General Electric GE MOV II, MA series MOV 5-30 E6198B Switch/Load Unit User Manual...
Connecting Loads Loads are mounted externally and connected to the load card via wires or cables. The loads are wired to connectors P1 and P2 which mate to the Agilent E6176A’s J1 and J2 connectors, respectively. Figure 5-13 shows these connectors.
Connecting high-current (>4 amp) loads without wiring across all C A U T I O N three pins in the row can cause premature pin failure. Figure 5-24 Agilent E6176A Current Sharing Example P2 Connector P1 Connector (W iring Terminal View)
• Clearly identify all cables to externally mounted loads, including those on a load plate. Use labels, numbers, color coding, or some combination of these methods. Cabling to polarity sensitive devices should be labeled appropriately. E6198B Switch/Load Unit User Manual 5-35...
Figure 5-25 Example: Load Plate with Loads UUT Connections When configured as part of a standard Agilent system, P2 of 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.
Using Load Cards and Loads Using the Agilent E6177A 24-Channel Load Card The Agilent E6177A 24-channel medium-current load card is intended to be used with loads mounted inside the Switch/Load Unit. Figure 5-27 shows a block diagram of the E6177A.
LOAD 1 pins on the load card. When using a channel of the Agilent E6177A as a GP switch make C A U T I O N sure that neither the NO nor NC connectors for that channel are jumpered to the load card power bus terminals on J9.
Loads are 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 area and connectors J1 and 5-42 E6198B Switch/Load Unit User Manual...
Using Load Cards and Loads Figure 5-30 Agilent E6177A Load Mounting Area and P1/J1 Connectors Load Mounting Area E6198B Switch/Load Unit User Manual 5-43...
Using Load Cards and Loads Load Wiring Figure 5-31 is a simplified schematic and P1 connector pinout showing how loads are connected to P1. Figure 5-31 Agilent E6177A Load Wiring Schematic and P1 Pinouts Even # Rows Odd # Rows Channel 1 Power 1...
Using Load Cards and Loads UUT Connections When configured as part of a standard Agilent system, P2 of 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 wiring guide for connection details.
Using Load Cards and Loads Using the Agilent U7177A 24-Channel Load Card The Agilent U7177A 24-channel medium-current load card is intended to be used with loads mounted external to the Switch/Load Unit. Figure 5-33 shows a block diagram of the U7177A.
The factory default is to provide two jumper combs, one that ties all the pins on J3-J8 together and one that ties all the pins on J10-J15 together. The NO pins are jumpered to power bus 2, 5-48 E6198B Switch/Load Unit User Manual...
For instance, to use channel 1 of the load card as a general-purpose switching relay, jumper across the LOAD 1 pins on the load card. See Figure 5-35. E6198B Switch/Load Unit User Manual 5-49...
Using Load Cards and Loads Figure 5-35 Using the 24-Channel Load Card Switches as GP Relays When using a channel of the Agilent U7177A as a GP switch make C A U T I O N sure that neither the NO nor NC connectors for that channel are jumpered to the load card power bus terminals on J9.
Using Load Cards and Loads Figure 5-36 Agilent U7177A Connector J1 and Mating Connector P1 Load Wiring Figure 5-37 is a simplified schematic and P1 connector pinout showing how loads are connected to P1. E6198B Switch/Load Unit User Manual 5-51...
Using Load Cards and Loads UUT Connections When configured as part of a standard Agilent system, P2 of 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 wiring guide for connection details.
Using Load Cards and Loads Using the Agilent E6178B 8-Channel Load Card The Agilent E6178B 8-channel heavy duty load card with current sensing is intended to be used with high power loads mounted outside the Switch/Load Unit. Figure 5-39 shows a block diagram of the Agilent E6178B.
T rating which is required to meet the Agilent E6178 surge current specifications. Refer to the module specifications for more information. To maintain Agilent E6178 safety and reliability, replace fuse with C A U T I O N Bussman type MDL-30 fuse only.
Using Load Cards and Loads Current Monitor Each channel on the Agilent E6178 uses a LEM model LA 55-TP Current Transducers with a 75 0.01%, 0.3W low TC (±2.5 ppm/°C) resistor for sensing the current through each channel. The sense relays are switched independently from the channel load relays.
If the device's internal protection fails, then the added external protection conducts to protect the UUT and the load card. Figure 5-41 Typical Agilent E6178B Load Card Flyback Protection Circuit Typical MOV (3mm) axial lead mounted specifications are: Continuous DC voltage: 220 V Transient energy (10/1000mS): 0.90 Joules (watt-seconds)
Connectors J11 and J31 connect to Channel 1, connectors J12 and J32 connect to Channel 2, etc. When configured as part of a standard Agilent system, P2 of 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.
Using Load Cards and Loads Using the Agilent N9377A 16-Channel Dual-Load Load Card The Agilent N9377A 16-channel dual-load load card with current sensing is intended to be used with high power loads mounted outside the Switch/Load Unit. The dual-load feature permits testing for some common test scenarios: •...
These fuses may be replaced by fuses with a higher value, but not to exceed 8 amps. The maximum fuse rating must not exceed an I T value of 102-126. C A U T I O N E6198B Switch/Load Unit User Manual 5-65...
The flyback protection devices have one flyback protection from the output to the normally open side of the power switch, and one flyback protection from the output to the normally closed side of the power switch. 5-66 E6198B Switch/Load Unit User Manual...
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 protect the UUT and the load card. E6198B Switch/Load Unit User Manual 5-67...
The loads are wired to connectors which mate to the Agilent N9377A’s J1 and J2 connectors, respectively. Figure 5-48 shows these connectors. Figure 5-48 Agilent N9377A Connectors J1/J2 and Mating Connectors J1/J2 Mating Connector for J1 K317...
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Using Load Cards and Loads Connecting high-current loads (>2 amp per pin) can cause C A U T I O N premature pin failure. Be sure to read “Current Sharing" of this manual before wiring high-current loads. 5-70 E6198B Switch/Load Unit User Manual...
Connecting high-current (>2 amp) loads without wiring across all C A U T I O N five pins in the row can cause premature pin failure. Figure 5-52 Agilent N9377A Current Sharing Example J1 Connector (Wiring Terminal View) Row 32 Load 1.1...
Using Load Cards and Loads UUT Connections When configured as part of a standard Agilent system, P2 of 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 wiring guide for connection details.
Using Load Cards and Loads Using the Agilent N9378A 24-Channel Low Resistance Load Card The Agilent N9378A 24-channel high-density load card is designed to work with loads mounted on mezzanine cards inside the Switch/Load Unit with up to eight quadruple loads per card.
Using Load Cards and Loads Connecting Loads Loads are mounted on the Agilent N9378A’s mezzanine cards (Figure 5-56). Up to four loads per channel can fit on each mezzanine card. • The mezzanine cards plug into the 1-3 upper and 1-3 lower positions on the load card.
= channel number 1, 3, 5, 13, 15, or 17 UUT Connections When configured as part of a standard Agilent system, P2 of 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.
Using Load Cards and Loads Using the Agilent N9379A 48-Channel High-Density Load Card The Agilent N9379A 48-channel high-density load card is designed to work with loads mounted on mezzanine cards inside the Switch/Load Unit with up to eight dual loads per card.
J802–J807 together and one that ties all the pins on J808–J813 together. The NO pins are also jumpered to power bus 2, and the NC pins are jumpered to power bus 1. You E6198B Switch/Load Unit User Manual 5-87...
“Using the Power 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 loads per channel. See...
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0xF . The left pin of each pair is the digital input, and the right pin is ground. Shorting a wire across the pair pulls the bit to the low binary state. E6198B Switch/Load Unit User Manual 5-89...
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Using Load Cards and Loads THIS PAGE IS INTENTIONALLY LEFT BLANK. 5-90 E6198B Switch/Load Unit User Manual...
Using the 32-Pin Matrix Cards Using the 64-Pin Matrix Cards 6-16 This chapter describes how to configure 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.
Both the Agilent E8792A and E8793A 32-Pin Matrix Modules contain a 32 x 4 Measurement Matrix for switching signals to and from the Analog Bus. The Agilent E8792A also contains a 16 x 5 Instrument Matrix that connects external measuring instruments to the Analog Bus.
Analog Bus which carries the signal between the UUT (unit under test) and instruments connected to the Analog Bus through the Agilent E8792A. This 32 x 4 structure lets you connect any system resource to any pin on the UUT.
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Additional features include an integrated relay timer, the ability to open all relays with a single bit, and series protection resistors that can be bypassed programmatically. These features are individually described the following paragraphs starting on page 6-7. E6198B Switch/Load Unit User Manual...
Using the Pin Matrix Cards Figure 6-2 Agilent E8792A Detailed Block Diagram 16 x 5 Instrument Matrix DAC1 Inst1 DAC2 Inst2 DACCOM Inst3 Inst4 Inst5 Inst6 Inst7 Inst8 96-Pin DIN C Inst9 96-Pin DIN C To Instruments Inst10 Backplane Access...
Resetting the card clears all internal registers, which resets all board functionality to its default, power-up state. Resetting also clears all relay registers, sets column disconnect relay control to automatic mode, and starts the relay timer. E6198B Switch/Load Unit User Manual...
User Connectors and Pinouts The figures and tables on the following pages show the pinouts for the Agilent E8792A and E8793A user connectors. E6198B Switch/Load Unit User Manual...
Switch/Load Unit or whenever working on a card. J1 Connector Pinouts Figure 6-5 shows the pinouts for connector J1 which provides instrument and Abus access. J1 is available only on the Agilent E8792A 32-Pin Matrix Card. E6198B Switch/Load Unit User Manual...
Instrument and Abus Access INST13 INST14 INST14 INST15 INST15 INST16 INST16 Abus1 UUT Common Abus2 UUT Common Abus3 UUT Common Abus4 UUT Common Abus1 UUT Common Abus2 UUT Common Abus3 UUT Common Abus4 UUT Common 6-10 E6198B Switch/Load Unit User Manual...
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 6-12 E6198B Switch/Load Unit User Manual...
UUT Common System Ground Aux7 UUT Common System Ground Aux6 UUT Common System Ground Aux5 UUT Common System Ground Aux4 UUT Common System Ground Aux3 UUT Common System Ground Aux2 UUT Common System Ground Aux1 E6198B Switch/Load Unit User Manual 6-13...
Aux24 Row24 UUT Common Aux25 Row25 UUT Common Aux26 Row26 UUT Common Aux27 Row27 UUT Common Aux28 Row28 UUT Common Aux29 Row29 UUT Common Aux30 Row30 UUT Common Aux31 Row31 UUT Common Aux32 Row32 6-14 E6198B Switch/Load Unit User Manual...
Using the Pin Matrix Cards Installing in the Switch/Load Unit The Agilent E8792A/E8793A 32-Pin Matrix 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).
Using the Pin Matrix Cards Using the 64-Pin Matrix Cards Conceptual Overview The Agilent E8782A Pin Matrix contains 40 x 4 Measurement Matrix for switching signals to and from the Analog Bus. It also contains a 24 x 5 Instrument Matrix that connects external measuring instruments to the Analog Bus.
Agilent E8783A Pin Matrix Card. Differences Between the Cards The Agilent E8782A contains a 24 x 5 Instrument Matrix and 40 x 4 Measurement Matrix. The Instrument Matrix is used to connect measurement or source instruments to the Analog Bus.
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Additional features include an integrated relay timer, the ability to open all relays with a single bit, and series protection resistors that can be bypassed programmatically. These features are individually described in the following paragraphs starting page 6-21. 6-18 E6198B Switch/Load Unit User Manual...
Using the Pin Matrix Cards Figure 6-12 Agilent E8782A Detailed Block Diagram 24X5 Instrument Matrix DAC1 Inst1 DAC2 DACCOM Inst2 Inst3 96-Pin DIN C Backplane Access 96-Pin DIN C To To Switch/Load Unit Instrument Decoding and Driver Circuits Inst22 Inst23...
B) control the relays used to bypass the series protection resistors. You can bypass the protection on a column-by-column basis. To prevent damage to card, bypas the protection resistors only C A U T I O N when absolutely necessary. E6198B Switch/Load Unit User Manual 6-21...
User Connectors and Pinouts The figures and tables on the following pages shows the pinouts for the Agilent E8782A and E8783A user connectors. SHOCK HAZARD. Only service-trained personnel who are aware WA RNING of the hazards involved should install, remove, or configure the Switch/Load Unit or plug-in cards.
Using the Pin Matrix Cards J1 Connector Pinouts Figure 6-15 shows the pinouts for connector J1 which provides instrument and Abus access. J1 is available only on the Agilent E8782A 64-Pin Matrix Card. Figure 6-15 J1 Pinouts--Instrument and Abus Access INST1...
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Figure 6-7. Figure 6-16 shows the pinouts for connector J2 which provides rear Aux line access for E8782A. Figure 6-17 shows the pinouts for connector J2 which provides rear Aux line access for E8783A. 6-24 E6198B Switch/Load Unit User Manual...
UUT Common System Ground Aux27 UUT Common System Ground Aux28 UUT Common System Ground Aux29 UUT Common System Ground Aux30 UUT Common System Ground Aux31 UUT Common System Ground Aux32 UUT Common System Ground E6198B Switch/Load Unit User Manual 6-25...
Aux30 UUT Common System Ground UUT Common AUX 62 Aux31 UUT Common System Ground UUT Common AUX 63 Aux32 UUT Common System Ground UUT Common AUX 64 J2 160 Pin DIN Rear Aux Access 6-26 E6198B Switch/Load Unit User Manual...
Row 26 Aux26 UUT Common Row 27 Aux27 UUT Common Row 28 Aux28 UUT Common Row 29 Aux29 UUT Common Row 30 Aux30 UUT Common Row 31 Aux31 UUT Common Row 32 Aux32 UUT Common E6198B Switch/Load Unit User Manual 6-27...
Row 30 Row 62 Aux30 Aux62 UUT Common Row 31 Row 63 Aux31 Aux63 UUT Common Row 32 Row 64 Aux32 Aux64 UUT Common P2 160 Pin DIN Row, Aux & UUT Common To UUT 6-28 E6198B Switch/Load Unit User Manual...
Using the Pin Matrix Cards Installing in the Switch/Load Unit The Agilent E8782A/E8783A 64-Pin 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 slot).
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Using the Pin Matrix Cards THIS PAGE IS INTENTIONALLY LEFT BLANK. 6-30 E6198B Switch/Load Unit User Manual...
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The Agilent E8794A Custom Card provides a general-purpose breadboard card for system integrators to add custom circuitry. The card can also emulate the Agilent TS-5430 Series I. This chapter describes how to configure and use the E8794A. Register descriptions for the custom card are located in Appendix B of this manual.
TS-5430 Series I Emulation The E8794A may be used to provide routing and breadboard support similar to that found on the Agilent TS-5430 “Personality Board”. Digital I/O, matrix, Aux channels, routing area and ICA interface connections that were found on the TS-5430 “Personality Board”...
Using the Custom Card Figure 7-1 Custom Card Features 32 Configuration lines DAC or Event Detector (if present) 2 x 32 Aux channels E6198B Switch/Load Unit User Manual...
Interface Figure 7-2 J2 Configuration Lines Pinouts CCard Com No Connect CCard Pin 1 To Test System Interface CCard Pin 32 No Connection CCard Com Note: Pinout shown is valid when using cable p/n E6170-61604 E6198B Switch/Load Unit User Manual...
J3/J4 connector breakouts when cable part number E6170-61615 is used to connect J3/J4 to the Agilent E1418 16-Channel DAC. The DAC’s top connector is cabled to J3, the DAC’s bottom connector is cabled to J4. Figure 7-3 J3/J4 Breakouts for Agilent E1418 DAC...
The Event Detector can be cabled to either J3 or J4. Figure 7-4 shows the J3 or J4 connector breakouts. Connections are made to either J3 or J4 to the Agilent E6174 Event Detector. Figure 7-4 J3 or J4 Connector Breakouts for Agilent E6174 Event Detector Signal Number Signal...
UUTCom (J6) J5 Breakouts J6 Breakouts UUTCommon (J6) Aux32 (J6) UUTCommon (J5) Aux32 (J5) Note: Pinout for Aux and UUT Common connections is valid when cable p/n E3751-61601 is used to connect to pin matrix cards. E6198B Switch/Load Unit User Manual...
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 schematic for the status and control interface. Figure 7-6 E8794A Layout E6198B Switch/Load Unit User Manual...
Switch/Load Unit And Card Specifications Agilent E6198B Switch/Load Unit Specifications Parameter Specification Power Bus Resistance 0.02 maximum Power Bus Current 30 A maximum continuous Peak Power Bus Current 40 A maximum (<0.1 second, duty cycle <10%) Peak Power Bus Voltage...
Switch/Load Unit And Card Specifications Agilent E6175A 8-Channel High-Current Load Card Specifications Parameter Specification Path resistance from power bus to load card 0.25 maximum connect (Exclusive of load, with standard 0.05 sense resistor and 10 A slo-blo fuse installed. (5 for load currents <1A.)
Switch/Load Unit And Card Specifications Agilent E6176A 16-Channel High-Current Load Card Specifications Parameter Specification Path resistance from power bus to load card maximum connect Exclusive of load, with standard 0.05 sense resistor and 10 A slo-blo fuse installed. (5 for load currents <...
Switch/Load Unit And Card Specifications Agilent E6177A 24-Channel Medium-Current Load Card Specifications Parameter Specification Path resistance from power bus to load card maximum connect Exclusive of load, with standard 0.05 sense resistor and 10 A slo-blo fuse installed. (5 for load currents <0.1 A.)
Switch/Load Unit And Card Specifications Agilent U7177A 24-Channel Medium-Current Load Card Specifications Parameter Specification maximum Path resistance from power bus to load card connect Load path relay operate/release time 3.3/2.4 msec typical 8/8 msec max, 10 cps maximum Peak Voltage to Earth...
Switch/Load Unit And Card Specifications Agilent E6178B 8-Channel Heavy Duty Load Card Specifications Parameter Specification Path resistance from power bus to load card 0.030 typical, 0.075 maximum connect (Exclusive of load with factory installed fuse.) Load path relay operate/release time...
Switch/Load Unit And Card Specifications Agilent N9377A 16-Channel Dual-Load Load Card Specifications Parameter Specification Switch topology 16 channels with 2 loads per channel, off-board loads Path resistance from power bus to load card maximum connect Exclusive of load, with standard 0.05 sense resistor and 10 A slo-blo fuse installed.
Switch/Load Unit And Card Specifications Agilent N9378A 24-Channel Low-Resistance Load Card Specifications Parameter Specification Switch topology 24 channels with 4 loads per channel with common, on-board loads Path resistance channel to common 0.130 maximum (Exclusive of load.) Path resistance from power bus to load card...
Switch/Load Unit And Card Specifications Agilent N9379A 48-Channel High-Density Load Card Specifications Parameter Specification Switch topology 48 channels with 2 loads per channel with common, on-board loads Path resistance channel to common 0.300 maximum (Exclusive of load) Path resistance from power bus to load card...
Number of Analog Instrument Channels Analog Channel Voltage (Max.): 200 volts Resistance: <1 Unbalanced Bandwidth: 10 MHz (Minimum) Balanced Pair Bandwidth: 5 MHz (Minimum) General Specifications (Agilent E8792A and E8793A) Parameter Specification Power Requirements Voltage:+5 Vdc Capacitance - DUT pin to UUT Common...
Switch/Load Unit And Card Specifications Relay Characteristics (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. instantaneous switching Other Relay Parameters...
Number of Analog Instrument Channels Analog Channel Voltage (Max.):200 volts Resistance:< 1Ω Unbalanced Pair Bandwidth:10MHz (Minimum) Balanced Pair Bandwidth:5MHz (Minimum) General Specifications (Agilent E8782A and E8783A) Parameter Specification Power Requirements Voltage:+5 Vdc Capacitance – DUT pin to UUT Common Open channel:100 pF...
Switch/Load Unit And Card Specifications Relay Characteristics (Agilent E8782A and E8783A) Parameter Specification Type Dry reed Switching Speed Close: 500 µs Open: 300 µs Switching Characteristics 1.0A carry 0.5A while switching 200VDC Switching voltage Life Time @ No load: 1x10...
Relays that wear out normally or fail due to misuse should not be N O T E considered defective and are not covered by the product’s warranty. E6198B Switch/Load Unit User Manual A-15...
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Switch/Load Unit And Card Specifications THIS PAGE IS INTENTIONALLY LEFT BLANK. A-16 E6198B Switch/Load Unit User Manual...
This information can help you with troubleshooting components of the load cards or Switch/Load Unit. Agilent strongly recommends that you address the registers and C A U T I O N relays through drivers that track the state of all the Switch/Load Unit relays from the moment of start-up.
Use slot number 0 for Switch/Load Unit backplane access. For Switch/Load Unit Pin Matrix, Load or Custom cards, slot numbers are depending on the slot availability; 1-21 for E6198B. For ease of configuration and for software auto detection, all of...
Where SSSSS is any binary value from slot numbers. For example: The base address for a load card inserted in slot 20 of the first Switch/Load Unit would be: Frame 1:001 Slot 20:10100 Register 0:00000000 Base Address: 0011010000000000 or 3400 E6198B Switch/Load Unit User Manual...
Open Drain Output Write Only Base + C h Digital Output Write Only Base + D h DAC2 Output MSB Write Only Base + E h DAC2 Output LSB Write Only Base + F h Not Used E6198B Switch/Load Unit User Manual...
Register Definitions Card Type (R)Base + 0 This register reads back 1E ) for E6198B for the Switch/Load Unit. Bits Read Card Type Setting (E6198B) 1E h • Read Only • Power On/Reset State = 1E ) for E6198B. Card Configuration (R) Base + 1...
LSB is written. See “DAC Scaling". Bits Write DAC1 DAC1 DAC1 DAC1 DAC1 DAC1 Output LSB (W) Base + 9 Writing to the DAC1 Output register sets the Least Significant Bit (LSB) of the DAC1 digital input. E6198B Switch/Load Unit User Manual...
To reset the Switch/Load Unit including DACs, Open Drain outputs and all Load and Pin Cards, write a 1 to this register, wait 5 mS and then write a 0 to this register. DACs will reset to 0 Vout. Bits Write Reset E6198B Switch/Load Unit User Manual...
N O T E by the LSB (register offset E ). The output of the DAC will not update until the LSB is written. See “DAC Scaling". Bits DAC2 DAC2 DAC2 DAC2 DAC2 DAC2 Write E6198B Switch/Load Unit User Manual...
To set the value of the DAC output, always write the MSB first, followed N O T E by the LSB. The output of the DAC will not update until the LSB is written. “DAC Scaling". Bits Write DAC2 DAC2 DAC2 DAC2 DAC2 DAC2 DAC2 DAC2 E6198B Switch/Load Unit User Manual...
Load select select 1-8 select select select 17-24 Base+9 h Power Power Load Load select select select select 9-16 Base+A h Power Load Load select select select 17-24 Base+B h Load Load select select B-10 E6198B Switch/Load Unit User Manual...
N O T E Agilent E6175A 8-Channel High-Current Load Card The Agilent E6175A Load Card is a highly flexible load card for high-current loads mounted directly on a sheet metal panel attached to the load card. The card provides current sense (both resistive and transducer type), pull-up/down, flyback protection, and bridge load capabilities.
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The card remains in the busy state until both timers have timed out. Purpose Undefined BUSY~ Setting all 1s state • Read Only • Undefined bits readback as all 1s • BUSY~: 0 = Busy, 1 = Ready B-12 E6198B Switch/Load Unit User Manual...
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• Power On/Reset State = 0 Select Value 0,5-7 1 (001) 2 (010) 3 (011) 4 (100) Relays none K1, K2 K3, K4 K5, K6 K7, K8 Channels None 1, 2 3, 4 5, 6 7, 8 E6198B Switch/Load Unit User Manual B-13...
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Setting state state state state • Write Only • State: 1 = NO shorted to COM, NC is open; 0 = NC shorted to COM, NO is open • Power On/Reset State = 0 B-14 E6198B Switch/Load Unit User Manual...
Register Definitions Agilent E6176A 16-Channel High-Current Load Card The Agilent E6176A Load Card is designed for high-current loads mounted outside the load card. The card provides current sense, pull-up/down, and flyback protection. The card also provides Card Type, Card Configuration, and Status readback of the built in relay timers.
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- no current sense relays selected. (Example: Setting the current sense register to 00110 selects channel six. Therefore relays K11 and K12 would be closed.) • Power On/Reset State = 0 Select 0,17-31 Relays none K11, K13, K15, B-16 E6198B Switch/Load Unit User Manual...
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This register controls the Pull Up/Down Power Select armature relays for channels 1-8. These relays are Form C and the register uses positive logic: 1 = NO shorted to COM, NC is open; 0 = NC E6198B Switch/Load Unit User Manual B-17...
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• Write Only • State: 1 = NO shorted to COM, NC open; 0 = NC shorted to COM, NO open • Power On/Reset State = 0 B-18 E6198B Switch/Load Unit User Manual...
Register Definitions Agilent E6177A 24-Channel Medium-Current Load Card The Agilent E6177A Load Card is a load card for moderate current loads mounted on a sheet-metal panel attached to the load card. The card provides pull-up/down selection, Card Type, Card Configuration, and Status readback of the built-in relay timers.
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Writing to this register starts the relay timer. Purpose CH 16 CH 15 CH 14 CH 13 CH 12 CH 11 CH 10 CH 9 Setting state state stat state state state state state • Write Only B-20 E6198B Switch/Load Unit User Manual...
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• Write Only • State: 1 = NO shorted to COM, NC is open; 0 = NC shorted to COM, NO is open • Power On/Reset State = 0 E6198B Switch/Load Unit User Manual B-21...
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• Write Only • State: 1 = NO shorted to COM, NC is open; 0 = NC shorted to COM, NO is open • Power On/Reset State = 0 B-22 E6198B Switch/Load Unit User Manual...
Register Definitions Agilent U7177A 24-Channel Medium-Current Load Card With Current Sense The Agilent U7177A Load Card is designed for moderate current loads mounted outside the load card. The card provides current sense, pull-up/down selection, Card Type, Card Configuration, and Status readback of the built in relay timers.
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- corresponds to current sense select on channel 2. 001101 - corresponds to current sense select on channel 13. 010000 - corresponds to current sense select on channel 16. 000000 or nnnnnn > 011000 - no current sense relays selected. B-24 E6198B Switch/Load Unit User Manual...
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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 relay timer. E6198B Switch/Load Unit User Manual B-25...
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COM, NO is open. The power buses selected are determined by how the card is configured. Writing to this register starts the relay timer. Purpose Setting state state state state state state state state B-26 E6198B Switch/Load Unit User Manual...
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Writing to this register starts the relay timer. Purpose CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17 Setting state state state state state state state state E6198B Switch/Load Unit User Manual B-27...
• State: 1 = NO shorted to COM, NC is open; 0 = NC shorted to COM, NO is open • Power On/Reset State = 0 Agilent E6178B 8-Channel 30 Amp Load Card Register Definitions The Agilent E6178B following Features: • Fuse protected at 30A (slow blow), •...
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(K1-K8) of the card, one bit per channel. The register uses positive logic, i.e. 1=closed. At reset no channel is selected. CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH 1 E6198B Switch/Load Unit User Manual B-29...
30 Amps. Agilent N9377A 16-Channel Dual-Load Load Card The Agilent N9377A dual-load load card lets you use the same channel to test of shorts to ground and Vbatt or tests that require two types of load for different parts of the test.
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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 (>16 ms) and the second designed for the faster reed relays E6198B Switch/Load Unit User Manual B-31...
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• CSS: current sense select (Isense). Bits 0-4 select the channel to connect to the Isense bus. • Valid CSS values are: 01-10 . For example, selects ch1 selects ch2 etc. selects ch15 selects ch16 B-32 E6198B Switch/Load Unit User Manual...
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1-8. (See Figure B-10.) 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 E6198B Switch/Load Unit User Manual B-33...
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This register controls the load selection relays for channels 1-8, letting you switch between two different loads for that channel. (See Figure B-10.) For x=1-8:. Chan8 Chan7 Chan6 Chan5 Chan4 Chan3 Chan2 Chan1 Purpose B-34 E6198B Switch/Load Unit User Manual...
• Power On/Reset State = 0 (all Loadx.1 connected to Loadx) Agilent N9378A 24-Channel Low-Resistance Load Card The Agilent 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 provides an output relay in a general-purpose configuration.
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(>4ms). The timer restarts whenever the registers controlling the respective relays are written to or the card is reset. The card remains in the busy state until the timer has timed out. Read Busy B-36 E6198B Switch/Load Unit User Manual...
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There are four bits available for each card, which permits identification of the mezzanine card location and proper orientation. Use the action to read loadCardGetInfo this register. Figure shows the layout of the mezzanine cards. E6198B Switch/Load Unit User Manual B-37...
• Power On/Reset State = 1 Mezzanine Card #2 Configuration (R) Base + 4 This register reads configuration information from the #2 upper and #2 lower mezzanine cards. (See Figure B-11 for a picture of the mezzanine card layout.) B-38 E6198B Switch/Load Unit User Manual...
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• Read Only • Lower nibble (bits 0-3) = #1 upper card (MC3U.0-MC3U.3) • Upper nibble (bits 4-7) = #1 lower card (MC3L.0-MC3L.3) • Power On/Reset State = 1 E6198B Switch/Load Unit User Manual B-39...
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This register controls the power selection relays for channels 5 and 6 with four possible loads on each channel. Chan6.4 Chan6.3 Chan6.2 Chan6.1 Chan5.4 Chan5.3 Chan5.2 Chan5.1 Purpose Setting state state state state state state state state B-40 E6198B Switch/Load Unit User Manual...
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Chan10.4 Chan10.3 Chan10.2 Chan10.1 Chan9.4 Chan9.3 Chan9.2 Chan9.1 Setting state state state state state state state state • Write Only • State: 1 = closed 0 = open • Power On/Reset State = 0 E6198B Switch/Load Unit User Manual B-41...
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This register controls the power selection relays for channels 16 and 15 with four possible loads on each channel. Chan16.4 Chan16.3 Chan16.2 Chan16.1 Chan15.4 Chan15.3 Chan15.2 Chan15.1 Purpose Setting state state state state state state state state B-42 E6198B Switch/Load Unit User Manual...
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Chan20.4 Chan20.3 Chan20.2 Chan20.1 Chan19.4 Chan19.3 Chan19.2 Chan19.1 Setting state state state state state state state state • Write Only • State: 1 = closed 0 = open • Power On/Reset State = 0 E6198B Switch/Load Unit User Manual B-43...
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This register controls the Pull Up/Down Power Select armature relays for channels 1-8. These relays are Form C and the register uses positive logic: 1 = NO shorted to COM, NC is open; 0 = NC B-44 E6198B Switch/Load Unit User Manual...
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Power Select 17-24 (W) Base + 14 This 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; E6198B Switch/Load Unit User Manual B-45...
• Power On/Reset State = 0 (all channels connected to NC) Agilent N9379A 48-Channel High-Density Load Card The Agilent N9379A high-density load card provides 48 channels with two loads per channel. It is not equipped for current sensing and does not provide flyback voltage protection.
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• Unused bits for write can be either 0 or 1 (does not matter) • For BUSY~ (Read Only): 0 = Busy 1 = Ready • For Reset (Write Only): 0 = no change 1 = causes board reset (non-latched) E6198B Switch/Load Unit User Manual B-47...
, but you can pull down bits to zero as required to create a configuration byte unique to the loads installed. Purpose MC1L.3 MC1L.2 MC1L.1 MC1L.0 MC1U.3 MC1U.2 MC1U.1 MC1U.0 Setting state state state state state state state state B-48 E6198B Switch/Load Unit User Manual...
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Card configuration is determined by the user to distinguish different load configurations. There are four bits available for each card, which permits identification of the mezzanine card location and proper orientation. Use the action to read this register. loadCardGetInfo E6198B Switch/Load Unit User Manual B-49...
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This register controls the power selection relays for channels 5 through 8 with two possible loads on each channel. Purpose Chan8.4 Chan8.3 Chan7.2 Chan7.1 Chan6.2 Chan6.1 Chan5.2 Chan5.1 Setting state state state state state state state state • Write Only • State: B-50 E6198B Switch/Load Unit User Manual...
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Chan16.2 Chan16.1 Chan15.2 Chan15.1 Chan14.2 Chan14.1 Chan13.2 Chan13.1 Setting state state state state state state state state • Write Only • State: 1 = closed 0 = open • Power On/Reset State = 0 E6198B Switch/Load Unit User Manual B-51...
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This register controls the power selection relays for channels 25 through 28 with two possible loads on each channel. Chan28.2 Chan28.1 Chan27.2 Chan27.1 Chan26.2 Chan26.1 Chan25.2 Chan25.1 Purpose Setting state state state state state state state state B-52 E6198B Switch/Load Unit User Manual...
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Chan36.2 Chan36.1 Chan35.2 Chan35.1 Chan34.2 Chan34.1 Chan33.2 Chan33.1 Setting state state state state state state state state • Write Only • State: 1 = closed 0 = open • Power On/Reset State = 0 E6198B Switch/Load Unit User Manual B-53...
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This register controls the power selection relays for channels 45 through 48 with two possible loads on each channel. Chan48.2 Chan48.1 Chan47.2 Chan47.1 Chan46.2 Chan46.1 Chan45.2 Chan45.1 Purpose Setting state state state state state state state state B-54 E6198B Switch/Load Unit User Manual...
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Writing to this register starts the relay timer. Purpose Pwr31-32 Pwr29-30 Pwr27-28 Pwr25-26 Pwr23-24 Pwr21-22 Pwr19-20 Pwr17-18 Setting state state state state state state state state • Write Only E6198B Switch/Load Unit User Manual B-55...
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• Write Only • State: 1 = NO, shorted to Pwr node • State: 0 = NC, shorted to Pwr node • Power On/Reset State = 0 (all channels connected to NC) B-56 E6198B Switch/Load Unit User Manual...
Thus, state tracking must be done in software. Card Type (R)Base + 0 Returns the pin card type: • Agilent E8792A returns a card type of 10 : (dddd = 1010). • Agilent E8793A returns card type of 11 : (dddd = 1011).
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DAC2Rly: 0 opens relay from Inst1 (DMM Hi) to DAC2 (default), 1 closes relay from Inst1 (DMM Hi) to DAC2 The above values are valid for the Agilent E8792A only. N O T E When measuring DAC1 or DAC2, system ground must be connected to low side of DMM.
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Not Used Base + 5 Register offset 5 used only for a placeholder to make software N O T E addressing simpler. E6198B Switch/Load Unit User Manual B-59...
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Base + 8 Bits Write Auxiliary Relay 25-32 (W) Base + 9 Bits Write Abus1 to Row Row Relay 1-8 (W) Base + A Bits Write Row Relay 9-16 (W) Base + B Bits Write B-60 E6198B Switch/Load Unit User Manual...
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Row Relay 1-8 (W) Base + E Bits Write Row Relay 9-16 (W) Base + F Bits Write Row Relay 17-24 (W) Base + 10 Bits Write Row Relay 25-32 (W) Base + 11 Bits Write E6198B Switch/Load Unit User Manual B-61...
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Base + 14 Bits Write Row Relay 25-32 (W) Base + 15 Bits Write Abus4 to Row Row Relay 1-8 (W) Base + 16 Bits Write Row Relay 9-16 (W) Base + 17 Bits Write B-62 E6198B Switch/Load Unit User Manual...
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Base + 18 Bits Write Row Relay 25-32 (W) Base + 19 Bits Write UUT Common to Instrument Bus The following values are valid for the Agilent E8792A only. Instrument Relay 1-8 (W) Base + 1A Bits Write Inst Inst Inst...
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Base + 21 Bits Write Inst Inst Inst Inst Inst Inst Inst Inst Abus4 to Instrument Bus Instrument Relay 1-8 (W) Base + 22 Bits Write Inst Inst Inst Inst Inst Inst Inst Inst B-64 E6198B Switch/Load Unit User Manual...
Inst Inst Inst Agilent E8782A 24-Instrument, 40-Measurement Matrix Card For relays, writing a 1 closes the relay, writing a 0 opens the relay. Register read back for the relay states is not provided. Thus, state tracking must be done in software.
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Register offser 5 used only for placeholder to make software addressing simpler. UUT Common to Instrument Bus Instrument Relay 1-8 (W) Base + 6 Bits Write Inst Inst Inst Inst Inst Inst Inst Inst B-66 E6198B Switch/Load Unit User Manual...
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Not available for Instrument matrix card without auxiliary. Auxilary Relay 1-8 (W) Base + 9 Bits Write Auxilary Relay 9-16 (W) Base + A Bits Write Auxilary Relay 17-24 (W) Base + B Bits Write E6198B Switch/Load Unit User Manual B-67...
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Instrument Relay 9-16 (W) Base + F Bits Write Inst Inst Inst Inst Inst Inst Inst Inst Instrument Relay 17-24 (W) Base + 10 Bits Write Inst Inst Inst Inst Inst Inst Inst Inst B-68 E6198B Switch/Load Unit User Manual...
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Row Relay 9-16 (W) Base + 12 Bits Write Row Relay 17-24 (W) Base + 13 Bits Write Row Relay 25-32 (W) Base + 14 Bits Write Row Relay 33-40 (W) Base + 15 Bits Write E6198B Switch/Load Unit User Manual B-69...
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Base + 18 Bits Write Inst Inst Inst Inst Inst Inst Inst Inst ABUS2 to Row Row Relay 1-8 (W) Base + 19 Bits Write Row Relay 9-16 (W) Base + 1A Bits Write B-70 E6198B Switch/Load Unit User Manual...
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Instrument Relay 1-8 (W) Base + 1E Bits Write Inst Inst Inst Inst Inst Inst Inst Inst Instrument Relay 9-16 (W) Base + 1F Bits Write Inst Inst Inst Inst Inst Inst Inst Inst E6198B Switch/Load Unit User Manual B-71...
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Row Relay 9-16 (W) Base + 22 Bits Write Row Relay 17-24 (W) Base + 23 Bits Write Row Relay 25-32 (W) Base + 24 Bits Write Row Relay 33-40 (W) Base + 25 Bits Write B-72 E6198B Switch/Load Unit User Manual...
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Base + 28 Bits Write Inst Inst Inst Inst Inst Inst Inst Inst ABUS4 to Row Row Relay 1-8 (W) Base + 29 Bits Write Row Relay 9-16 (W) Base + 2A Bits Write E6198B Switch/Load Unit User Manual B-73...
Card Type (R) Base + 0 Returns measurement matrix card type: Measurement matrix card without auxiliary returns a card type of 7010 : (ddddddd=1000110) Measurement matrix card with auxiliary returns a card type of 7110 : (ddddddd=1000111) Bits Read B-74 E6198B Switch/Load Unit User Manual...
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0 opens the relay and writing 1 closes the relay. Bits Write • Writing to PB4-PB1 sets state of protection bypass relays. • Writing to AB4-AB1, sets state of Abus disconnect relays. E6198B Switch/Load Unit User Manual B-75...
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Auxilary Relay 9-16 (W) Base + 7 Bits Write Auxilary Relay 17-24 (W) Base + 8 Bits Write Auxilary Relay 25-32 (W) Base + 9 Bits Write Auxilary Relay 33-40 (W) Base + A Bits Write B-76 E6198B Switch/Load Unit User Manual...
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Base + C Bits Write Auxilary Relay 57-64 (W) Base + D Bits Write ABUS1 to Row Row Relay 1-8 (W) Base + E Bits Write Row Relay 9-16 (W) Base + F Bits Write E6198B Switch/Load Unit User Manual B-77...
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Row Relay 33-40 (W) Base + 12 Bits Write Row Relay 41-48 (W) Base + 13 Bits Write Row Relay 49-56 (W) Base + 14 Bits Write Row Relay 57-64 (W) Base + 15 Bits Write B-78 E6198B Switch/Load Unit User Manual...
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Row Relay 17-24 (W) Base + 18 Bits Write Row Relay 25-32 (W) Base + 19 Bits Write Row Relay 33-40 (W) Base + 1A Bits Write Row Relay 41-48 (W) Base + 1B Bits Write E6198B Switch/Load Unit User Manual B-79...
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Row Relay 1-8 (W) Base + 1E Bits Write Row Relay 9-16 (W) Base + 1F Bits Write Row Relay 17-24 (W) Base + 20 Bits Write Row Relay 25-32 (W) Base + 21 Bits Write B-80 E6198B Switch/Load Unit User Manual...
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Base + 24 Bits Write Row Relay 57-64 (W) Base + 25 Bits Write ABUS4 to Row Row Relay 1-8 (W) Base + 26 Bits Write Row Relay 9-16 (W) Base + 27 Bits Write E6198B Switch/Load Unit User Manual B-81...
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Row Relay 33-40 (W) Base + 2A Bits Write Row Relay 41-48 (W) Base + 2B Bits Write Row Relay 49-56 (W) Base + 2C Bits Write Row Relay 57-64 (W) Base + 2D Bits Write B-82 E6198B Switch/Load Unit User Manual...
Register Definitions Agilent E8794A Custom Card Register Definitions Card Type (R) Base + 0 The Custom Card always returns a card type of 20 Bits Read Configuration (R) Base + 1 Configuration registers are programmable by the user and may be used to identify what version of custom card is installed.
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Nominal output value 0 volts +5 Volts or pull up value The reset state of this register is 0 (all outputs off). This output can be used for general-purpose relay, lamp and solenoid drive requirements. B-84 E6198B Switch/Load Unit User Manual...
Repair Information Support Strategy Rebuilt exchange assemblies are available for many Agilent VXI modules. However, there are no exchange assemblies available for the load cards. If a load card fails, you have two choices: purchase a new load card or troubleshoot the problem and repair it.
This load card uses the 0490-1517 Form C relay. Two Agilent 0490-1839 relays, switched in parallel, are used to connect the Isense+ and Isense- signals. Figure C-2 Agilent E6176A 16-Channel Load Card Component Locator (Rear View) E6198B Switch/Load Unit User Manual...
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 tables on the following pages list the component number for each possible relay.
Individual relays can be replaced on the Agilent E8782A and E8783A 32-pin matrix modules. All relays are 5V, 1A reed relays. The Agilent part number for an 8-pack of relays is 0490-2063. The tables on the following pages list the component number for each possible relay.
Agilent TS-5000 E6198B Switch/Load Unit User Manual Glossary Of Terms Agilent Technologies...
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A standardized maintenance procedure designed to ensure system accuracy. In this manual it refers to removing those items that require calibration - the DVM and the Frequency Counter - and shipping them to an Agilent bench site for calibration. • Card Plug-in devices that are installed into either the Switch/Load Unit or a VXI mainframe.
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Logical Address - The address set on a VXlbus module that is unique to that system. This usually corresponds to its slot number. • LEM Module A current transducer with multiple primary coil taps that allows it to be set for five different current levels. E6198B Switch/Load Unit User Manual...
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Switch/Load Unit (locally) or at the inputs of the UUT (remotely). Remote sensing guarantees the voltage value set will be applied at the sense point, and losses in the system will be compensated for. E6198B Switch/Load Unit User Manual...
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• Unit Under Test (UUT) The automotive module or printed circuit board being tested. • VME Computer backplane architecture standard. • VXI Computer backplane architecture standard that incorporates both the VMEbus and GPIB communications features. E6198B Switch/Load Unit User Manual...
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Glossary Of Terms THIS PAGE IS INTENTIONALLY LEFT BLANK. E6198B Switch/Load Unit User Manual...