ITC-18 PCI and USB Users manual - HEKA Elektronik Dr. Schulze
Contents
1. 4 5 6 7 8 9 30 31 32 66 33 34 68 31 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 10 Warranty Information 10 1 Limited Warranty Instrutech Corporation warrants to the first purchaser for a period of two years from the date of purchase that this Instrutech Instrument hereafter referred to as the Product will be free from defective workmanship and materials and agrees that it will at its option either repair the defect or replace the defective Product or part thereof at no charge to the purchaser for parts and labor The Product must be returned to Instrutech Corporation postpaid and insured Instrutech Corporation will return the Product postpaid and insured in the most appropriate method as determined by Instrutech Corporation If a faster shipping service is desired by the customer any additional special delivery expenses must be paid by the customer This warranty does not apply to shipping damage Instrutech Corporation fully insures all shipments Any claims of damage upon receipt must be filed with the carrier and Instrutech Corporation immediately This warranty does not apply to any exterior appearance item of the Product which has been damaged or defaced which has been subjected to misuse and abuse abnormal service or handling or which has been altered or modified in design or construction This warranty does not apply to any interconnection cables supplied wi2. 1 bit 300 microvolt of noise The ITC 18 can access the A D D A and digital I O channels in any sequence This provides the ability of different sampling rates for each channel Digital I O The ITC 18 provides sixteen digital inputs thirty two digital outputs seven sequence RAM trigger outputs and fourteen asynchronous non isolated digital outputs The digital input channels feature level sensitive or latched modes For maximum versatility the inputs can be inverted allowing rising or falling edge triggering Thirty two digital output channels in two banks of sixteen with fourteen channels paralleled with current sink circuitry for driving perfusion valves solenoids or other devices directly Seven programmable trigger outputs for triggering from any location in the scanning sequence RAM and fourteen asynchronous auxiliary digital outputs that can be updated at any time regardless of the ITC 18 s acquisition state are available FIFO Memory The ITC 18 is supplied with a large 1024 kilosample FIFO memory for input and output data The ITC 18 allows data acquisition to be performed independent of the activity of the host computer A large FIFO memory allows for increased acquisition speed while minimizing the use of computer resources Specialized Applications The ITC 18 uses programmable gate arrays that allow the internal hardware to be altered for specialized applications One available application is the Artificial Synapse Dyn
3. 18 front panel to the signal ground connector on the signal source Most patch clamp amplifiers provide a suitable connection point for the signal ground 22 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 5 Troubleshootin Most problems arise from incorrect installation of the hardware and or incorrect use of the software The first thing to check is for proper installation of the hardware interface Check the Instrutech website for a newer version of the driver At times we make changes based on operating system changes enhancements or bug fixes Check to see that the AC line cord is plugged in correctly Check the fuses on the ITC 18 interface rear panel Check the cable connecting the PCI card or the USB host to the ITC 18 interface Make sure both ends are plugged in securely and that the cable is not damaged Check the USB cable connecting the USB 18 and the host computer Make sure both ends are plugged in securely and that the cable is not damaged Make sure that the computers USB port is USB 2 0 Hi speed If all of the above steps fail to resolve the problem then contact your dealer for assistance 23 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 6 Additional Software 6 1 Available Driver Software Instrutech Corporation has available driver software for researchers and developers who wish to write custom applications using the ITC 18 Interface These drivers and appropriat
4. affected by such noise e g slow speed integrating A D converters but high speed high resolution A D and D A converters like the ones used in the ITC 18 are affected by such noise Mounting the electronics in an external box is the most effective way of reducing this noise Optical Isolation The analog electronics of the ITC 18 are optically isolated from the digital electronics and the computer This provides complete electrical isolation between the computer and the measurement The optical isolation is provided to eliminate computer electrical noise from the analog measurements Computers contain digital electronics that switch at high speed producing large electrical transients The computer ground functions as the return path for these transients resulting in substantial high frequency ground noise The ITC 18 has a completely separate analog ground that is isolated from the computer ground Computer ground noise is not coupled into the measurement Optical isolation is almost essential if low noise analog outputs are provided If the analog outputs are not electrically isolated from the computer ground the analog output ground will contain computer generated noise This is one of the major ways by which computer generated noise is introduced into a measurement system The optical isolation of the ITC 18 brings with it another benefit that simplifies complex measurement systems Since the analog inputs and outputs of the ITC 18 floa
5. on Apple MacOS X 10 2 and above and Windows NT 2000 and XP Download the appropriate driver installer from our web site www instrutech com Follow the installation instructions provided with the acquisition software that will be used with this ITC 18 USB interface 3 2 Hardware installation PCI version l Turn the computer OFF 2 Disconnect the power cord to the computer 3 Remove the cover from the computer to access the computer s PCI expansion slots Please follow the instructions outlined in your computer user s manual for removing the cover of the computer Locate an empty PCI bus slot and remove the cover over the case access opening Use caution here to guard against static as outlined in chapter one Remove the PCI 18 or PCI 18V3 card from the static shielding packaging Line up the card edge connector on the PCI board with the female connector on the CPU board Gently press the two together until fully 20 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL seated If any resistance is felt please check for any proper alignment of the connectors Do not force the two boards together It should take minimal pressure to mate the two connectors If excessive force is used here damage could result to the PCI card and the computer main board If your model computer uses a screw to secure the expansion cards in place install the screw and make sure that it is fastened securely Note On some model compu
6. the 7C 8 Replace fuse with a standard 1 5 inch type F 1 8A fuse only DIGITAL I O amp SEQUENCE OUTPUTS Dual 50 pin IDC connector 16 Digital input lines with individual grounds 16 Digital output lines with individual grounds Channel 0 16 Digital output lines with individual grounds Channel 1 and 7 sequencer outputs with individual grounds Please note that the absolute maximum voltage range for the digital inputs is 0 5 volts to 5 5 volts Do not exceed this range or damage can result to the input circuitry EXT CLK optional BNC connector The external clock option allows multiple ITC 18 interfaces to be synchronized by an external master clock Please contact Instrutech or your dealer for availability and specifications If this option is installed the absolute maximum voltage range for this input is 4 volts peak Do not exceed this range or damage can result to the input circuitry HOST COMPUTER 80 pin high density connector Connection to one of the ITC 18 host interface adapters Currently the PCI 18 PCI 18V3 or USB 18 AUX OUTPUTS 34 pin IDC connector 16 auxiliary output lines with individual grounds These signals are not isolated and must use the non isolated ground provided on this connector for proper operation 19 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 3 Installation 3 1 Hardware installation USB version l Install the ITC 18 interface into the ope
7. 0055 isch sed ke See he Be Wises Resse Beaks 16 ITC 18 REAR PANEL CONTROLS i 18 ITC 18 CURRENT DRIVER OUT EXTERNAL CONNECTIONS 19 ITC 18 VR 10 VR 100 CONNECTOR PINS 27 ITC 18 SERIAL PORT CONNECTOR PINS iii 28 ITC 18 CURRENT DRIVER OUT CONNECTOR PINS iii 28 ITC 18 DIGITAL I O AND SEQUENCER OUT CONNECTOR PINS 29 ITC 18 AUXILIARY OUTPUT CONNECTOR PINS iii 30 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL Credits Instrutech Corporation would like to thank the following individuals who have contributed their time and ideas to the development and testing of the ITC 18 computer interface Dr Fred Sigworth Yale University Dan Brown Bruxton Corporation Dr Hubert Affolter Heka electronik INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 1 General Information 1 1 Product intended usage The Instrutech ITC 18 USB or ITC 18 PCI is intended for research use only in a laboratory by persons trained in its use Users are expected to be able to properly operate the ITC 18 USB or ITC 18 PCI and associated instruments The Instrutech ITC 18 USB or ITC 18 PCI is not intended for medical use The Instrutech ITC 18 USB or ITC 18 PCI is not intended for use in life support situations or in situa
8. 29 33 35 37 39 Pin 39 y a a Pin 40 This port is optional and is not provided on standard Pin 1 Vv T Pin 2 Figure 5 ITC 18 VR 10 VR 100 connector pins Assignment PPMCMO0 channel mode PPMCM2 channel mode no connection no connection no connection no connection RSPCO RS 232 RxD Ground PPMPLY Play Rec mode no connection Ground PPMDI data bit 1 PPMD3 data bit 3 PPMDS data bit 5 PPMD data bit 7 PPMD9 data bit 9 PPMDI data bit 11 PPMD 13 data bit 13 PPMSTR valid data flag Ground Assignment Pin ME 8 Do not ground these connections they are used by the VR 10 100 2I INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 9 2 Serial I O Connector Below is a listing of the pin assignments of the male serial port connector on the rear panel of the ITC 18 interface This port is optional and is not provided on standard configuration ITC 18 units s e 000 Figure 6 ITC 18 Serial Port connector pins RxD receive data Ground 7 9 3 Current Driver Out Connector Below is a listing of the pin assignments of the Current Driver Out connector on the rear panel of the 7C 18 interface Figure 7 ITC 18 Current Driver Out connector pins Clamp B bank 2 out channel 12 bank 2 Pin Assignment Ground 7 Ground 10 Ground 28 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL out c
9. Power requirements 85 264V AC 47 440 Hz 15 Watts Warranty Two years parts and labor All technical specifications are nominal conditions and are subject to change without notice 1 6 Description The ITC 18 is the second generation computer interface from Instrutech Corporation The ITC 18 offers increased capability while retaining all of the exceptional features of it s predecessor the ITC 16 The ITC 18 advances data acquisition to a new level 11 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL Hardware Configuration The ITC 18 is a rack mountable unit It has BNC connectors for the analog inputs and outputs and ribbon cable connectors for the digital lines The ITC 18 is connected to a host computer over a shielded cable to a host interface Host interfaces are available for 3 3 and 5Volt PCI bus and USB 2 0 The PCI and USB host interfaces are compatible with both Macintosh and PC compatible computers Moving the ITC 18 from one platform to another is a simple matter of installing the proper operating system drivers This configuration is unique to data acquisition units Most data acquisition devices are printed circuit boards installed directly in the computer itself The interior of a computer is an electrically noisy environment At the very high speeds of modern computers even a short length of a conductive trace on a PC board acts as an antenna Certain kinds of data acquisition devices are not
10. USER S MANUAL Model ITC 18 PCI and ITC 18 USB DATA ACQUISITION INTERFACE WITH PCI OR USB HOST ADAPTER Es DAC OUTPUT ADC SEUI 3 a 0000 00000000 OD c 18 COMPUTER INTERFACE NSTRUTECH Co Neck InstruTECH USB 18 2 x A OM 20 Vanderventer Avenue Suite 101E Port Washington New York 11050 3752 U S A ns f uU Tel 516 883 1300 Fax 516 883 1558 Internet sales instrutech com support instrutech com Precision Instrumentation for Biological Research x http www instrutech com Rev 13 12 14 2005 2 31 PM INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL Table of Contents Table ot Contents arnie 0A MELO E RO ALLORO heen 2 TE OEP EE 4 Credits NTE 5 1 General Tnforniati ii sosser enn aaa Arn 6 1 1 Product intended usage as 6 122 ACCCSSOLICS Tara 6 1 37 Unpaid 6 1 4 Purchase Information ooooococonononononononononononononononononononononono nono eee eee nono nono no eee 8 15 Technical Specifications Ves 9 16 Desenpton illo aelred 11 1 7 Explanation d ve 15 2 Controls and FUNCION til heise WU A esse IRE Sel 16 2 1 Front Panel Controls A A dz 16 2 2 Rear Panel Controls ii A A ts aa 18 SInstallationis t e lie a ihre Sapa ade ts assed date dr 20 3 1 Hardware installation USB Version erererevevvvnvvvvrnvvrnrvrnsnrnrnrnsnrnensnsnsnrnsnsnsesnsesesen 20 3 2 Hardware installation PCI version eee rene ceci rece eee eee rece eee eee eee eee einen 20 4 Impottant cons
11. amic Clamp The clamped cell is connected to an A D input via a Voltage Clamp amplifier The stimulus is computed based on voltage measured from the cell lookup tables for excitation inhibition and conductance values and other parameters This stimulus is applied to the cell via the current input of the Voltage Clamp amplifier 13 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL The ITC 18 implements Dynamic Clamp in hardware rather than in software In this Dynamic Clamp configuration the ITC 18 samples four co phase A D channels at 50 kHz 20 ms performs the necessary calculations and drives the outputs All calculations are done within one sample clock resulting in an input to output delay of only 20 ms Software Support The ITC 18 has extensive software support Software drivers are available for Windows 3 x Windows 95 98 Windows NT Windows 2000 Windows XP MacOS classic MacOS X Linux National Instruments LabView and for Wavemetrics IGOR Pro XOP s Software packages that support the ITC 18 are ECELL from Instrutech PatchMaster Pulse X Chart and TIDA from Heka Elektronik Acquire and Device Access from Bruxton Corporation AxoGraph from Axon Instruments PulseControl XOP s from Dr Bookman and Strathclyde WinWCP Many custom applications have also been written for the ITC 18 The ITC 18 costs more than low cost data acquisition devices which are built as printed circuit boards mounted in a compute
12. ator The ready indicator will be illuminated when the ITC 18 has been properly initialized by the host computer and the acquisition software If this indicator is not illuminated then the ITC 18 cannot function properly POWER indicator The power indicator will be illuminated when the ITC 18 has been powered on The 7C 18 uses circuitry that will automatically switch the internal power supply when the computer is started or shutdown Provided that the ITC 18 is connected to either the PCI or USB host adapter DAC outputs Four BNC connectors provide access to the four individual deglitched 18 bit 16 bit data digital to analog converter outputs All DAC outputs are thermally stabilized to reduce drift The digital to analog converter output voltage and timing are controlled by the acquisition software The DAC channels have an output range of 10 24 to 10 239 volts These channels are optically isolated from the computer Note Allow a 20 to 30 minute warm up time for proper thermal regulation after initial power up 16 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL O ADC inputs Eight BNC connectors provide access to the eight individual 18 bit 16 bit data analog to digital converter input channels Each A D channel uses a high speed programmable gain instrumentation amplifier to provide individually selectable gain Analog to digital converter channel selection and sampling interval timing is controlled by
13. e manuals are available in both MacOS and Windows formats They are available from Instrutech Corporation by request They are also available from Instrutech Corporation by Internet WWW or email For access to our WWW site our URL is http www instrutech com By email send a message to support instrutech com If you do not have access to the Internet call Instrutech and request the ITC driver disk for the operating system of your choice 6 2 Igor XOP s Instrutech Corporation has available an XOP for Wavemetrics Igor that will allow researchers and developers to write custom applications using the ITC 18 Interface and Wavemetrics Igor software This XOP and the appropriate manual is available from Instrutech Corporation by request It is also available from Instrutech Corporation by Internet WWW or email For access to our WWW site our URL is http www instrutech com By email send a message to support instrutech com If you do not have access to the Internet call Instrutech and request the ITC 18 XOP diskette 24 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 7 Product Upgrades 7 1 USB 18 adaptability The USB 18 card is designed to be firmware upgradeable by users should this ever become necessary to keep up with new developments in the specification for the USB bus Do not attempt to do such an upgrade without the approval of Instrutech Corporation or one of its authorized agents If this upgrade is performed i
14. e software is run is should give you a successful completion message The computer should then be powered down and the jumper removed from the WE pins Close the computer and turn the power back on The update has now been completed If there is any difficulty in this process please contact your dealer 25 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 8 Product Registration 8 1 Why Register your purchase Instrutech Corporation periodically offers enhancements and updates to our products Without product registration users of our products may miss out on announcements of important enhancements to the products that they are using Instrutech Corporation does not make our customer list available to anyone else Any information that you provide to us is strictly confidential 8 2 How to Register your purchase Product registration can be accomplished in two ways You may fill out and mail in the product registration warranty card supplied with each Instrutech Corporation product You may also register on line at our World Wide Web site at http www instrutech com 26 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 9 Rear Panel Connector PIN Assignments 9 1 VR 10 100 Digital Data Recorder Connector Below is a listing of the pin assignments of the optional VR 10 VR 100 port on the rear panel of the ITC 18 interface configuration ITC 18 units 15 17 19 21 23 25 27
15. ech Corporation immediately if there is any damage Do not dispose of the shipping carton The carrier will want to examine the shipping carton to process a damage claim Instrutech Corporation insures all shipments to cover shipping damage It is also advisable to keep the shipping carton in the event that the instrument must be returned for service Use caution when removing the PCI 18 or PCI 18V3 computer plug in card from the special static shielding bag that it is packed in This board is susceptible to damage and degradation by static discharges Do not remove the board from this static protection until you are ready to install it into the computer Touch the computer chassis to equalize the static charge between yourself and the computer chassis before handling the computer board Following these steps is extremely important to prevent damage to the computer interface card Instrutech Corporation does not warranty the PCI 18 or PCI 18V3 computer card from damage caused by improper handling INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 1 4 Purchase Information Take the time now while getting started to record some purchase information here This will make it easier to locate this information should this become necessary in the future Date of purchase uansett Dealer is Dealer telephone number ITC 18 Serial number USB 18 Serial
16. f the sixteen digital output channels The status of the digital output channels are controlled by the acquisition software These digital channels output standard TTL levels 5 volts and 0 volts These channels are optically isolated from the computer These channels are optimized to drive 75 ohm BNC cables into an AC HC ACT HCT or 8 TTL load O TRIG IN A BNC connector provides access to the external trigger input A TTL trigger pulse can be given to start data acquisition The 7C 8 will be triggered with a positive logic pulse with a minimum duration of 150ns This input is not isolated The absolute maximum voltage range for this input is 0 5 volts to 5 5 volts Do not exceed this range or damage can result to the input circuitry 17 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL O TRIG OUT A BNC connector provides access to the sequencer out data bit 0 This sequence bit will switch with each timer period and does not use a time slot Can be used as a gate output signal for triggering a scope or other instrument when data acquisition has started The true functionality of this output is software dependent This output is not isolated 2 2 Rear Panel Controls 0 7 N MEA DIGITAL I O and SEQUENCER OUTPUTS AUX eatin 20 mm NO F2A CURRENT DRIVER OUT ey EXT ET COMPUTER es AO a o O 4 e O Q Figure 3 ITC 18 Rear Panel Controls O FUSE Replace fuse with a standard 20 mm type F 2A
17. fuse only Littelfuse 217002 POWER CONNECTOR Accepts standard three wire IEC female type power cords The appropriate power cord will be provided with the ITC 18 The ITC 18 will function with a line voltage from 88 to 264 volts AC Acceptable line frequencies are from 47 hertz to 440 hertz The maximum power used by the 7C 8 is fifteen watts WARNING To avoid a shock hazard the ITC 18 must be plugged into a properly grounded receptacle CURRENT DRIVER OUT DB 25 female connector The ITC 18 provides 14 digital output channels that can be used either as standard TTL levels or as current sink To use as current sink channels the connections to the external device is as follow 18 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL gt DIGITAL VO and SEQUENCER OUTPUTSEXT CLK SERIAL I O a 0 Power Digital Output Ground Figure 4 ITC 18 Current Driver Out external connections O FUSE Supply A See HOST COMPUTER VR 10 VR 100 100 240 VOLTS 90000000000 ka 00000000 IN ClampA Maximum power supply voltage 50 Volts Note The current sink grounds are fuse protected in case current is fed back to the ITC 18 interface A low impedance connection should be made if a common ground external power supply is used As shown maximum drive current is 350 mA Current driver out ground fuse This fuse will open when current is fed back into
18. hannel 3 bank 1 out channel 2 bank 1 out channel 1 bank 1 out channel 0 bank 1 9 4 Digital I O and Sequence Out Connector Below is a listing of the pin assignments of the Digital I O and Sequence Out port on the rear panel of the ITC 18 interface Pin 49 Pin 1 y 7N Pin 50 Pin2 Figure 8 ITC 18 Digital I O and Sequencer Out connector pins Pin Top Connector Bottom Connector Pin _ Top amp Bottom Connector topo Ground noconseton 2 Ground 3 TTLinputbt8 TiLinputbto 4 Ground 5 TILimputbito TrLimputbitl 6 Ground 7 TILimputbicio TrLinputbit2 8 Ground 9 TrLinputbitll TILimputbit3 29 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 9 5 Auxiliary Output Connector Pin 33 Pin 1 NY Vv K A Pin 34 Pin 2 Figure 9 ITC 18 Auxiliary output connector pins om Grow om 5 Grow __ 2 2 2 2 2 13 15 17 19 1 3 5 7 9 31 33 30 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 9 6 USB 18 Asynchronous Digital I O Connector Below is a listing of the pin assignments of the Digital I O port on the USB 18 host interface adapter The Digital I O port is a standard 68 pin mini DIN connector same as SCSI cables Pin Assignment Pin Assigmment 10 11 12 13 ___Timro 60 AsynehronousTILINT 2 2 2 2 2 2 Asynchronous TTL IN 1 Asynchronous TTL IN 0 Ground
19. iderations ua ilaele 22 TL A ET 22 4 2 Differential analog to disgital INputsi 1 rinata le 22 5 TEO ESO A A A A A daar ako Ga 23 6 Additional Software coa 24 6 1 Available Driver Software oooooococononononononononononononononononononono conoce nono eee eee eee eee einen 24 6 2 SER Po oak e O 24 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL T Product LU PAS avanse eee 25 Td USB I amp adaptability c ironia aa glia aaa 25 T2 PS se 25 8 Product Registration iaia ae 26 8 1 Why Register your Puras a 26 8 2 How to Register your purchase rin ri cies 26 9 Rear Panel Connector PIN Assignments ii alito 27 9 1 VR 10 100 Digital Data Recorder Connector 27 9 2 Seral VO COREL Lura AEE 28 9 3 Current Driver Out Connector sad 28 9 4 Digital I O and Sequence Out Connector sesssrensvrennssssvennnnsnnsssnnssnnnsessvennnrsnnsssnnsserse 29 9 5 Auxiliary Quiput Connector ciro a A aia 30 9 6 USB 18 Asynchronous Digital I O Connector 31 LO Warranty Information a aa aaa ad e Gada Aan 32 10 1 Limited Wat A 32 10 2 Obtaining Warranty Service a 32 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL FIGU FIGU FIGU FIGU FIGU FIGU FIGU FIGU FIGU RE 1 RE 2 RE 3 RE 4 RE 5 RE 6 RE 7 RE 8 RE 9 Table of Figures EXPLANATION OF SYMBOLS spirer lt 65 40055 denen essen gerusk ee a reser eda 15 ITC 18 FRONT PANEL CONTROLS 32600
20. mproperly the USB 18 card will malfunction and become unusable First you must acquire the proper upgrade software from Instrutech Corporation or one of its representatives These upgrades will be announced on our Web site Update software will be made available in MacOS and Windows formats After the software is run is should give you a successful completion message The USB 18 should then be unplugged from the USB port and then reconnected The update has now been completed 7 2 PCI 18 adaptability The PCI 18 PCI 18V3 card is designed to be firmware upgradeable by the user should this ever become necessary to keep up with new developments in the specification for the PCI bus Do not attempt to do such an upgrade without the approval of Instrutech Corporation or one of its authorized agents If this upgrade is performed improperly the PCI 18 or PCI 18V3 card will malfunction and become unusable First you must acquire the proper upgrade software from Instrutech Corporation or one of its representatives These upgrades will be announced on the Instrutech Web site The cover of the computer must be removed to access the PCI card in order to install a jumper A programming jumper needs to be installed across the pins labeled WE Install this shunt with the computer powered off After this shunt is installed power on the computer and run the software for your system Update software will be made available in MacOS and Windows formats After th
21. number ee PCI 18 Serial number Other notes INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 1 5 Technical Specifications Unless otherwise noted ambient temperature 25 degrees Celsius Analog Input Channels Number of channels Type of ADC Input connector Resolution Acquisition rate Input range Aperture delay Aperture jitter Conversion speed Differential nonlinearity Drift Input impedance Signal to noise ratio Crosstalk Programmable Gain Gain Settling time Nonlinearity Max input voltage Input CMRR Digital Inputs Digital inputs Input type Operational mode Minimum pulse width Input connectors Max input voltage Triggers Input 8 differential optically isolated successive approximation BNC on front panel 18 bit converter 16 bit data 1 in 3200 200 kHz aggregate 10 24 to 10 239 Volts 10 ns 50 ps rms software selectable 5 us to 82 ms in 1 25 us steps 0 002 of FSR 50 ppm C IMQ 90dB lt 1 LSB software selectable instrumentation grade 1 2 5 or 10V V 3 5 us to 0 01 all gains 0 0003 of FSR 40 Volts 100dB 16 logic level optically isolated CMOS logic compatible software selectable level sense or latching Latched mode will hold the value until read by the software Level sensing will change with all level transi
22. oads bits 0 to 3 on front panel BNC 32 bits on rear panel multi pin connector 14 optically isolated AC HCT ACT HCT VCT logic compatible or 8 TTL loads max 14 bits on rear panel DB 25 multi pin connector 10 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL Output sink current 350mA maximum for each bank of 7 outputs Asynchronous outputs Number 16 non isolated Output driver HC logic compatible Output connector 34 pin multi pin connector Sequencer outputs Number 7 optically isolated Output driver AC HCT ACT HCT VCT logic compatible or 8 TTL loads Output connectors 7 bits on rear panel multi pin connector USB host interface The USB 18 host interface is a USB 2 0 Hi speed adapter that interfaces the ITC 18 rack unit to a host computer that has USB 2 0 Hi speed ports The USB 18 will interface with slower USB ports but performance will be diminished PCI host interface The PCI 18 PCI interface card is a 5 volt slave PCI host card that interfaces the ITC 18 rack unit to the host computer The PCI 18V3 PCI interface card is a 3 3 volt slave PCI host card that interfaces the ITC 18 rack unit to the host computer FIFO memory Standard 1024 kilosample FIFO External Clock Optional 12 8 megahertz external clock will synchronize multiple ITC 18 interfaces Dimensions W 19 H 1 75 D 10 5 Weight 8 pounds W 47 5 cm H 4 375 cm D 26 25 cm Weight 3 6 kg
23. r without electrical isolation and multiplexing a single A D converter For this extra cost it provides a major improvement in the quality of acquired data making measurements possible that would not otherwise be feasible 14 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 1 7 Explanation of symbols Symbol Description N Alternating current Currant alternatif Wechselstrom Corriente alterna Corrente variabile On Supply Allum alimentation An Netz Encendido suministro Sotto tensione Off Supply teint alimentation Aus Netz Apagado suministro Fuori tensione Caution Attention Vorsicht Cuidado Cautela DPHE Protective conductor terminal Borne du conducteur de protection Schutzleiterpol Terminal de conductor protector Morsetto di filo di protezione Figure 1 Explanation of symbols 15 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 2 Controls and Functions 2 1 Front Panel Controls Circled numbers reference to the diagram of the front panel i Do DAC OUTPUT ADC INPUT 4 READY T T T T T I Y 3 4 5 6 7 SIGNAL 000000 A A A A _ da T 1 A A tn AN ITC 18 comput R INTERFACE INSTRUTECH alen Great Neck N Y U pol 0 0000 O o o Figure 2 ITC 18 Front Panel Controls O READY indic
24. rating position Make sure that the interface can reach the computer with the supplied cable Do not extend this cable Unreliable operation can result if this cable is extended Install the SC 12 cable between the ITC 18 interface labeled HOST COMPUTER and the USB 18 labeled To ITC 18 The connectors on either end of the cable are keyed and will only mate when properly inserted Fix the connectors in place with the screws attached to the connector This is important to ensure a good electrical contact Install the USB cable to the USB 18 labeled To USB and an available USB 2 0 Hi speed port on the computer Connect the power cord to the ITC 18 The internal power supply used in the ITC 18 is an auto switching multi voltage supply that will operate from 100 volts to 260 volts Make sure that the ITC 18 power cord is plugged into a properly grounded AC receptacle Improper grounding of the ITC 18 could result in an electrical shock hazard It is advisable to plug all equipment into a common outlet strip this will minimize power line induced noise in the system Equipment plugged into different outlets can cause excessive sixty hertz noise to be induced into the acquired data Before powering up please recheck all connections If all connections are proper then the power led will illuminate once the computer is started You are now ready to power up the system and install the driver software The ITC 18 USB is supported
25. s are proper then the power led will illuminate once the computer is started 9 You are now ready to power up the system and install the driver software The ITC 18 PCI is supported on MacOS Classic MacOS X 10 2 and above Windows 9x ME NT 2000 XP and Linux Download the appropriate driver installer from our web site www instrutech com Follow the installation instructions provided with the acquisition software that will be used with this ITC 18 PCI interface 21 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL 4 Important considerations 4 1 Warm up The ITC 18 digital to analog converter circuitry uses a sophisticated thermal stabilization technique to provide complete stability of the DAC outputs over time For optimal stability of the DAC outputs the ITC 18 requires 20 to 30 minutes of warm up time During this initial 20 minutes after the ITC 18 is turned on DAC drift will occur This drift can be as large as 6 mV during the initial warm up period After this warm up period the DAC outputs will be extremely stable 4 2 Differential analog to digital inputs The ITC 18 analog to digital converter inputs are true differential inputs For proper operation of the A D converter the cable connecting the A D input to the signal source must have a complete shield High quality 75 ohm BNC to BNC cables are recommended for optimum performance connection should be made between the SIGNAL GROUND connector on the ITC
26. t with respect to ground the ITC 18 and computer are not a source of ground loop problems Analog Circuitry The ITC 18 provides eight 18 bit A D converters that feature individually programmable input range of 1 2 5 or 10 volts Using separate A D converters for each analog input channel eliminates crosstalk between channels and improves the frequency response of the analog inputs 12 INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL Typical data acquisition devices use a single A D converter with a multiplexer to select between input channels The multiplexer usually an integrated circuit is a single point where all analog input signals connect Crosstalk both from the multiplexer itself and from closely spaced printed circuit board traces causes signals appearing at one analog input to appear at other inputs as well The amount of crosstalk is usually frequency dependent High frequency signals can be affected significantly The ITC 18 design is particularly important when making measurements using multiple high frequency signal sources and analyzing the signals for correlation An added benefit to the ITC 18 design is that all analog inputs can be sampled simultaneously This simplifies analysis of high frequency correlation between signals since there is no time offset between sample points on the input channels The ITC 18 provides four 18 bit D A converters that feature high accuracy with less than
27. ters the rear bracket may not line up correctly against the inside of the computer case For these computers loosen the two screws on the PCI card that hold the rear bracket in place Adjust the bracket for a better fit and re tighten the screws 4 Re install the cover of the computer Install the ITC 18 interface into the operating position Make sure that the interface can reach the computer with the supplied cable Do not extend this cable Unreliable operation can result if this cable is extended 6 Install the SC 18 cable between the ITC 18 interface and the PCI computer board The connectors on either end of the cable are keyed and will only mate when properly inserted Fix the connectors in place with the screws attached to the connector This is important to ensure a good electrical contact 7 Connect the power cord to the ITC 18 The internal power supply used in the ITC 18 is an auto switching multi voltage supply that will operate from 100 volts to 260 volts Make sure that the ITC 18 power cord is plugged into a properly grounded AC receptacle Improper grounding of the ITC 18 could result in an electrical shock hazard It is advisable to plug all equipment into a common outlet strip this will minimize power line induced noise in the system Equipment plugged into different outlets can cause excessive sixty hertz noise to be induced into the acquired data 8 Before powering up please recheck all connections If all connection
28. th the Product This warranty does not apply if any unauthorized repairs modifications or alterations have been made to the Product This warranty applies to software products only to the extent of maintenance release software to correct improper operation of the Product Software updates to increase the capabilities of the present product are not to be provided under the terms of this warranty Updates will be sent at no cost to the customer by normal common carrier routes If faster delivery is desired the customer must assume any additional expenses for special delivery service No sales organizations other than Instrutech Corporation itself are authorized to make any warranties other than those described above or to extend the duration of any warranties beyond the time period described above on the behalf of Instrutech Corporation If Instrutech Corporation agrees to such a modification of this warranty Instrutech will furnish a modified copy of this agreement which must be presented if a claim is being made under these modified terms 10 2 Obtaining Warranty Service Warranty service of this Product can be obtained by returning the Product post paid and insured to Instrutech Corporation or one of its sales agents Prior authorization before shipping the product is advised for the most expedient service 32
29. the acquisition software The ADC channels have an input range of 10 24 to 10 239 volts These channels are optically isolated from the computer These channels are differential inputs If the BNC connector shield is left unconnected unexpected results can occur Use only high quality 75 ohm BNC cables for optimal results The absolute maximum input range for these inputs is 40 volts Do not exceed this level or damage can result to the input circuitry SIGNAL GROUND connector A 3 mm banana receptacle provides connection to the internal analog ground This low noise ground is provided for connecting to the recording amplifier This ground connection is not connected to the 7C 8 case or to the computer power supply ground If desired the user should provide an external connection between the case and the instrument rack The mating plug for this connector is a Keystone Electronics Corporation part number 6077 O TTL digital inputs Four BNC connectors provide access to four out of the sixteen digital input channels The digital input channels are controlled by the acquisition software These digital input channels accept standard TTL levels 5 volts and 0 volts These channels are optically isolated from the computer The absolute maximum voltage range for these inputs is 0 5 volts to 5 5 volts Do not exceed this range or damage can result to the input circuitry O TTL digital outputs Four BNC connectors provide access to four out o
30. tions Active high or active low 150 ns for either operational mode bits 0 to3 on front panel BNC 16 bits on rear panel multi pin connector 40 Volts INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL Number 1 hardware selectable isolated non isolated Input type CMOS logic compatible Ou Operational mode Minimum pulse width Input connector Max input voltage ut Number Output driver Output connector Max output current Analog Outputs Number of channels Type ofDAC Output connector Resolution Output Range Conversion speed Gain error Gain linearity Gain drift Signal to noise ratio Output impedance Short circuit to ground Output load current Digital Outputs Standard Number Output driver Output connector High current drive Number Output driver Output connector software selectable edge mode software selectable inverted sense 150 ns BNC on front panel 40 Volts 1 hardware selectable isolated non isolated AC HCT ACT HCT VCT or 8 TTL loads BNC on front panel 6 mA 4 pseduo differential optically isolated double buffered multiplying BNC 18 bit converter 16 bit data 1 in 65536 10 24 to 10 239 volts software selectable 5 us to 82 ms 0 2 of FSR lt 2dB 25 ppm of FSR C 116dB 200Q for output overload protection indefinite 8 mA typical 32 optically isolated AC HCT ACT HCT VCT logic compatible or 8 TTL l
31. tions were improper operation or failure of the ITC 18 USB or ITC 18 PCI can result in personal injury Instrutech Corporation makes no representation that the design implementation testing or manufacture of the ITC 18 USB or ITC 18 PCI meet reasonable standards for use as a medical product As stated in the Instrutech Limited Warranty Statement supplied with each product Instrutech Corporation expressly disclaims all warranties to buyer except the limited warranty set forth above including without limitation to any and all implied warranties of merchantability and fitness for a particular purpose 1 2 Accessories The following items should have been packed with your ITC 18 USB or ITC 18 PCI Computer Interface 1 Power cord 110 volt or 220 volt type depending on application 1 ITC 18 Computer interface 1 USB 18 or PCI 18 or PCI 18V3 host interface adapter 1 SC 18 12 Cable assembly USB version only 1 SC 18 Cable assembly PCI version only 1 four foot USB Cable assembly USB version only 1 ITC 18 Warranty card 1 USB 18 or PCI 18 or PCI 18V3 Warranty card 1 User s manual If any of these items are missing please contact Instrutech Corporation immediately 1 3 Unpacking After unpacking the ITC 18 and accessories from the shipping carton please inspect each piece for any signs of shipping damage Please contact the delivering carrier and INSTRUTECH CORPORATION ITC 18 PCI AND ITC 18 USB USER S MANUAL Instrut
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