CED Power1401-3, Owner'S Handbook Manual

Page 1: ...Cambridge Electronic Design Limited 1st edition 1 1 September 2012 2nd edition 1 2 June 2013 3rd edition 1 3 July 2014 Published by Cambridge Electronic Design Limited Science Park Milton Road Cambridge CB4 0FE UK Telephone 44 0 1223 420186 USA Canada Toll Free 1 800 345 7794 Fax 44 0 1223 420488 Web www ced co uk Email info ced co uk Trademarks and Tradenames used in this guide are acknowledged t...

Page 2: ...rage and operating environment 4 Application software 5 Installing the USB interface Overview 6 Software installation 6 Hardware installation 6 Test software Installing test diagnostics 9 Windows diagnostics 10 Application software Spike2 Signal Running the Power1401 with Spike2 12 Running the Power1401 with Signal 13 Inputs and outputs General 14 Waveform input 15 Waveform output 17 The rear pane...

Page 3: ...uction 34 Earthing 35 Upgrade by users 35 Maintenance operations Introduction 36 Taking the lid off 36 Switch settings 36 I O components 37 Adjustable components other features 38 Memory upgrades 39 Setting the ADC input range 40 Flash ROM 41 Analogue calibration 42 Cleaning the Power1401 43 Trouble shooting Overview 44 Stand alone test 44 LED diagnostic patterns 45 Calling the CED Help Desk 46 In...

Page 4: ...e in Times New Roman SMALL CAPS Use of symbols Where applied the following symbols have the meanings below This symbol declares that the equipment passes the relevant clauses of EU directives on safety and EMC emissions see the certificate reproduced on page 52 Observe precautions against electrostatic discharge The CED Power1401 3 is lead free and conforms to the EU RoHS directive The CED Power14...

Page 5: ... to eliminate the interference problem by doing one or more of the following Potential for Radio Television Interference USA only Re orient the receiving antenna Re orient the position of the Power1401 3 with respect to the receiver Move the Power1401 3 away from the receiver Plug the Power1401 3 into a different outlet so that the Power1401 3 and the receiver are on different branch circuits If n...

Page 6: ...ture enlargement of flash USB2 port integral to processor permitting a significantly faster data transfer rate from 27 MByte sec to 47 MByte sec to host from 10 MByte sec to 45 MByte sec to 1401 New de glitched DAC DAC offset gain calibration by software Life support CED products are not authorized for use as critical components in life support systems without the express written approval of the c...

Page 7: ...ower1401 Connect the USB data cable USB hardware is recognized and correct driver located automatically On some versions of Windows the device driver has to be approved by the user which requires various OK boxes to be clicked For details see page 6 Step 3 Check the installation Run the TRY1401 utility installed with your CED software Click on All On to select all tests click on Run Once to run th...

Page 8: ...1 programming or the use of application programs with the 1401 Examples of screen dumps and user dialog are taken from Windows 7 unless mentioned to the contrary Details will differ slightly in earlier versions of Windows but the operations are all very straightforward and users should not experience any difficulty Windows version The installation kit for your Power1401 comprises Checklist A Power...

Page 9: ...shown Confidence check Your Power1401 was soak tested at CED before shipping To pass the test a Power1401 must not generate a single error in at least 96 hours of testing The next procedure checks that the 1401 hardware is in the same state as it left the factory Ensure that the front panel DC switch marked is off with the button protruding from the panel Insert the power brick output plug into th...

Page 10: ...gnetic interference The Power1401 can be recycled please contact CED for further details When choosing a permanent position for your Power1401 note that it prefers the same sort of environment as suits the host computer The Power1401 normally stands on its base but it will work on its side or upside down if required Position To deal with the heat generated by the microprocessor the Power1401 3 is ...

Page 11: ...quired to use CED application programs is contained in the software manuals Technical histories of some of our programs upgrade information and in many cases downloadable files may be found on www ced co uk Information on application programs The 1401 language support kit for users who wish to program their Power1401 from their host computer includes the 1401 family programming manual for detailed...

Page 12: ...ies To install the software simply insert the CD Typically it will autorun If it does not run setup exe If you are installing Spike2 or Signal the drivers command library and test utilities are loaded at the same time as the application Installations with application software Hardware installation A Power1401 using the USB interface requires a computer with a USB2 port and connector All you have t...

Page 13: ...ta Windows 7 Windows 8 Start Control Panel System Open System by double clicking and select Device Manager This reveals the hardware devices tree The 1401 interface icon will be on a node with an arrow indicating that a device is present Click on this to display the CED 1401 USB interface icon Among the tabs revealed when this is opened the General tab provides overall device status and allows for...

Page 14: ...Start Control Panel System Open System by double clicking select the Hardware tab and press the Device Manager button This reveals the hardware devices tree The 1401 interface icon will be on a node with a boxed indicating that a device is present Click on this to display the CED 1401 USB interface icon Among the tabs revealed when this is opened the General tab provides overall device status and ...

Page 15: ...all from CD under any supported operating system Insert the CD The installation program should run automatically If it does not select Start Run Browse open the CD and choose the file setup exe Click on OK and follow the screen instructions If the 1401 drivers on the CED 1401 installation disk are newer than those on your system setup exe will update them Location of software You can choose where ...

Page 16: ...host computer and Power1401 in the same way TRY1401 TRY1401 program screen displaying 1401 Info The TRY1401 utility is currently installed as the application TRY1432 exe To run TRY1401 select Start All Programs 1401 support TRY1401 Running TRY1401 is self explanatory The check boxes allow different aspects of 1401 function to be tested separately Self test causes the internal self test hardware to...

Page 17: ...t the machine cannot do by itself since they require cables to be routed between various connectors voltages set c The tests are interactive At each step the user is instructed what equipment is needed what to do and what results to expect Some tests can be carried out solely by connecting cables and digital voltmeters to the Power1401 others require the box to be opened in order to adjust potenti...

Page 18: ... of continuous data possibly on many channels Analysis of EEGs during sleep or recording of cardiac output blood pressure and respiration would be typical tasks This application example and the Signal application example below make use of the CED 1902 isolated pre amplifier Spike2 sampling ECG with 1902 control panel 12 ...

Page 19: ...n where a sequence of data is recorded repetitively often synchronized to a repeated stimulus The classic example of this is evoked response recording here segments of brain activity are correlated with recurrent stimuli in order to extract responses buried in the noise Signal controlling 1902s for multi channel data acquisition 13 ...

Page 20: ...ts red to indicate self test and flashes red and green if a hardware error has been detected Normally it glows green indicating that none of the internal voltage rails has drifted outside limits See also LED diagnostic patterns page 45 Front panel LEDs Chips connected directly to the outside world are susceptible to damage from electrostatic discharge or signal overload though in practice this see...

Page 21: ...igital Converter via multiplexers The ADC can convert an input signal to a 16 bit digital value at up to 2 MHz in single channel mode 1 MHz if switching channels Sampling is inherently sequential two channels cannot be sampled simultaneously If simultaneous sampling is required you should consider the PGF8 expansion top box see page 32 Waveform buffering gain The front panel input labelled Trigger...

Page 22: ... voltage range of 0 V to 5 V There is MOSFET circuit protection allowing a safe input range of 10 V This input is held internally to 5 V by a 100 kilohm resistor and has input hysteresis the low going threshold voltage is set at 0 95 V and the high going threshold at 1 2 V Pulses driving the trigger input should be 1 s or longer To pull this input low the driving device must be able to sink 50 A F...

Page 23: ...external signal either the rear panel Event Clock F input see page 21 or the front panel Trigger input so as to synchronize the update rate with external equipment Alternatively they can be updated at a fixed rate set by one of the internal clocks When multiple channels of waveform are output the Power1401 can be programmed to update several DACs simultaneously The maximum update rate is 500 kHz U...

Page 24: ... ADC 11 input 7 ADC 12 return 37 ADC 12 input 8 ADC 13 return 38 ADC 13 input 9 ADC 14 return 39 ADC 14 input 10 ADC 15 return 40 ADC 15 input 11 12 No connection 41 42 No connection 13 DAC 2 return 43 DAC 2 output 14 DAC 3 return 44 DAC 3 output 15 No connection 16 30 No connection Shell Mains earth to cable screen Rear panel analogue socket The mating D plug with solder bucket terminations is IT...

Page 25: ...s relevant Clock output Where external signal pulses are to be timed or counted the application program may use the front panel Event 0 and Event 1 inputs Pulses must be 1 s or wider If there are more than two such signals the rear panel Digital Inputs may be used see page 25 Clock inputs All clock frequencies are normally derived from an internal crystal oscillator Users may sometimes require a t...

Page 26: ... range of Trigger Event 0 and Event 1 is 0 V to 5 V There is MOSFET circuit protection allowing a safe input range of 10 V These inputs are held internally to 5 V by 100 kilohm resistors and have input hysteresis the low going threshold voltage is set at 0 95 V and the high going threshold at 1 2 V To pull these inputs low the driving device must be able to sink 50 A Pulses driving these front pan...

Page 27: ...ion allows a safe input range of 10 V Technical details The sense of the Clock E and ADC external convert inputs may be inverted by a switch option see page 36 but the inputs would all then be held active high if no input is connected The Event Out output is buffered by an NC7SZ04 single gate lead free surface mount inverter that can drive 10 LS TTL loads Note that since this is an output device i...

Page 28: ...t is normally permanently enabled but either or both bytes can be turned tristate off by grounding pin 11 of the output socket if this has been enabled by software those bytes are re enabled whenever pin 11 is high or disconnected Front panel event input LEDs flash or blink on detection of active edge transitions the quiescent state being set by software command Front panel digital output LEDs sim...

Page 29: ... 0 7 pulses for 1 µs if in pulsed mode If in interlocked mode NDRL is set by the data write and cleared by the answering DRL pulse data read 0 7 at least 1 µs wide from the external device There is a 5 V output available on pin 25 of both the digital input and output ports This output is internally protected by a 200 mA circuit breaker and is intended only to power one or two chips for interfacing...

Page 30: ...echnical details Unconnected digital inputs read 1 being pulled internally to 5 V by 4 7 kilohms at the rear panel or 100 kilohms at the front panel Input voltages of more than 2 0 V will always read as a logic 1 To appear as a logic 0 the input must be pulled down below 0 8 V for at least 1 s requiring approximately 50 A at the front panel or 100 ns requiring approximately 1 mA at the rear panel ...

Page 31: ...reserved 22 1 wire port i o 10 User o p buffered reserved 10 Not connected 23 NDRL New data ready 0 7 o p 23 DAL Data available 0 7 i p 11 Output disable i p 11 Not connected 24 DRL Data received 0 7 i p 24 DTL Data transmitted 0 7 o p 12 NDRH New data ready 8 15 o p 12 DAH Data available 8 15 i p 25 5V 200mA maximum 25 5V 200mA maximum 13 Ground 13 Ground Shell Mains earth to cable screen Shell M...

Page 32: ...B_GND to system ground Shell Mains earth to cable screen USB socket Synchronization port The synchronization port enables two or more 1401s to be synchronized Power 3 Power II micro 3 micro mk II or Power serial no P 3xxx onwards in any mix so that there is absolutely no drift in timing between units The Sync socket is an RJ12 connector with 6 pins loaded A screened cable is daisy chained from uni...

Page 33: ...e required voltage rails inside the Power1401 The internal regulators will accept voltages in the range 9 V to 18 V so the Power1401 will run off a car battery See also the Battery Box page 33 An internal relay controlled by the front panel pushbutton switches both 12 V and 0 V When inserting the DC supply plug initial contact is made by mains earth when the sleeve engages the DC inlet screen Main...

Page 34: ...values if the ADC16 is not installed Up to two ADC16s may be added to a Power1401 in which case the second maps onto channels 24 39 and the rear panel ADC inputs onto channels 40 47 The ADC inputs on the ADC16 are of identical design to the ones on the main board with optional selectable gains of unity 2 5 or 10 The input range will be 5 V or 10 V as set on the motherboard using TRY1401 see page 4...

Page 35: ...e achievable Up to two PGA16s may be added to a Power1401 in which case the second maps onto channels 24 39 and the rear panel ADC inputs map onto channels 40 47 The ADC inputs are of similar design to the ones on the main unit only with two cascaded gain stages The input range will be 5 V or 10 V as set for the motherboard using TRY1401 see page 40 The top box makes internal connections to the Po...

Page 36: ...of ADC input mapped as channels 8 15 The inputs are of identical design to the ones on the main unit with optional selectable gains of unity 2 5 or 10 and input range of 5 V or 10 V as set on the motherboard The rear panel ADC inputs are mapped onto channels 16 23 The top box brings two more bits of digital output bits 2 and 3 of the upper byte to front panel BNCs The top box makes internal connec...

Page 37: ...unity 2 5 or 10 and input range of 5 V or 10 V as set on the motherboard Finally there is a pair of DACs mapped onto DAC 2 3 When this card is installed the rear panel ADC inputs are mapped onto channels 16 23 and the rear panel DACs onto channels 4 and 5 The normal input voltage range of the digital inputs is 0 V to 5 V The safe range is 10 V and they present an impedance of 100 kilohm as with th...

Page 38: ...circuits include Trigger A and Trigger B inputs with programmable thresholds a phase locked loop PLL and a programmable frequency multiplication of the Trigger A frequency The latter two functions are useful when triggering information comes from smoothly varying systems such as rotating shafts The PGF8 generates three digital outputs Event Outputs 0 and 1 and Trig Out on BNCs handily positioned d...

Page 39: ...nt to note that when using the CED 3003 there is no direct connection to mains earth from either the Battery Box or the 1401 If earthing is not provided through external equipment e g signal returns tied to mains earth at source the 1401 chassis can be earthed via the M3 stud on the rear panel Mains earth Particular care must be taken when disposing of this unit It may be returned to CED Ltd for r...

Page 40: ...to raise its height to 2 U or 3 U Inner can expansion The outer case of the Power1401 3 is built from 1 U aluminium extrusions The side pieces have integral card guides into which the inner can assembly slides The front and rear panels are bolted to the side pieces The top and bottom plates are plastic coated steel panels that slide into grooves in the side pieces and are retained by the font and ...

Page 41: ...he Power1401 earth rail is connected to mains earth via the DC power socket and the earth leads of the power supply Upgrade by users For most kinds of daughterboard it is feasible for a user to expand a Power1401 in the field though we do prefer units to be sent back to CED No particular electronic expertise is required the task should be well within the capability of an averagely practical person...

Page 42: ...the green yellow earth wire from the side It may be quite tight Undo the six M3 combi screws with captive shakeproof washers using a 1 pt Pozidriv screw driver Gently pull the lid up and off Note the position of the graphite impregnated gasket strips They are quite delicate so store them safely The circuit board is now ready to be worked on To reassemble the Power1401 simply reverse this procedure...

Page 43: ...0 in sockets IC91 74LCX244MTC Dig In hi byte IC92 74LCX244MTC Dig In lo byte IC93 SN74HCT244PWE4 Dig Out hi byte IC94 SN74HCT244PWE4 Dig Out lo byte IC95 74LCX244MTC Handshake in IC96 SN74HCT244PWE4 Handshake out IC110 111 112 MAX367CWN Input protection IC109 NC7SZ04M5X_NL User out IC113 NC7WZ14P6X_NL User in Output disable IC115 116 117 118 OPA604APG4 4 off ADCin 14 12 10 8 in sockets IC85 86 87 ...

Page 44: ...1 10 VR18 20 right ADCin 9 8 Offset adjust VR9 10 above ADC 5V gain 10V gain VR11 12 below ADC 10V offs 5V offs Options switch Posn 1 at bottom Fan plug Fan duct if fitted Fan CPU heat sink Relay Expansion headers DC DC 5V 3V3 DC DC 15V ICE debug socket Analogue input expansion coax Digital output handshake pin headers DDR DIMM Board ident serial no FPGA CPLD Flash Event Out link DAC 2 3 coaxes Mu...

Page 45: ...GByte non ECC DDR DIMM that will run in the Power1401 3 Suitable 2 GByte memory DIMM The standard short self test will take about 1 second The long test which tests the memory takes about 1 minute per gigabyte to run it position 7 of the internal options switch must be set i e in the Off position see page 36 Self test and the memory The long self test must be run if you have fitted a 2 GByte DDR I...

Page 46: ...e supplied with the default setting of 5 V unless you have asked for it to be supplied with the range set to 10 V Note that analogue performance is inherently poorer on the 10 V range ADC inter channel cross talk rises disproportion ately faster with sampling rate and DAC settling time is longer Warning To alter the voltage range select Start All Programs 1401 support TRY1401 Inside the File menu ...

Page 47: ... the Downloads page of CED s website www ced co uk You will find detailed instructions there on downloading the files Monitor and FPGA upgrades are implemented by updating the flash ROM using the TRY1401 utility To open TRY1401 select TRY1401 Start All Programs 1401 support TRY1401 From File select Update Flash The destination for the new monitor is set automatically to block 2 and the FPGA image ...

Page 48: ... To make use of this program you will need a fine trimming tool or a 1 4 mm flat bladed jeweller s screwdriver a few BNC to BNC cables and a BNC tee junction and an accurate digital voltmeter DVM with a resolution of 10 V on the 5 V range It is most important that you allow the Power1401 to warm up with power on for at least thirty minutes before you start the calibration to allow the system to re...

Page 49: ...d annually to remove deposits of foreign matter with a soft cloth moistened with a mild detergent solution Avoid spilling drops of water or any other liquid on the Power1401 Note this product is not designed to withstand aggressive or caustic cleansing products Check the BNC connectors and rear panel plugs and sockets for pieces of paper or fluff If any are seen remove them with a pin Check cables...

Page 50: ... the ADC and DAC LEDs dance in characteristic patterns If all is well the indicator then turns green The yellow LEDs continue to flicker only stopping when the Power1401 is reconnected to a working computer If the indicator flashes red and green at the end of the power up self test the Power1401 self test firmware has detected a problem It is likely that TRY1401 will be able to provide details of ...

Page 51: ...ory read Test numbers LEDs show the test number LSB on the left Frozen pattern LEDs halt on the number of the failed test Binary ramp LEDs count up in binary Dancing DACs the two leftmost LEDs toggle their original states at 1 Hz As per program As before LEDs continue doing whatever they were doing before 1401 status Yellow LEDs Indicator Normal running As per program Green Memory test Bar graph R...

Page 52: ...k to CED You must first get a returns number from CED Ship by Federal Express UPS or DHL Worldwide DO NOT use TNT or a freight forwarding company We advise you to dispatch the machine to us using a door to door express service and CIF not FOB CED is not responsible for the safety of the equipment until it is inside our premises If you are dispatching from outside the EU it is essential to call us ...

Page 53: ...ogue Expansion numbering 28 r p Analogue Expansion numbering 29 r p Analogue Expansion numbering 30 r p Analogue Expansion numbering 30 r p Analogue Expansion numbering 31 r p Digital Inputs 19 24 r p Events 21 r p Events ADC convert 16 Clock E inputs 21 Clock F 17 19 Event Out 21 RS232 port 26 27 Synchronization port 26 USB 26 Cooling fan 4 CPU crash LED pattern 45 Crystal oscillator 19 20 D DACs...

Page 54: ...39 Mode selector 3 41 Monitor 41 upgrades 41 MOSFET protection 14 16 20 21 24 O Options DIL switch 36 39 Outer case 34 Output drive capability Clock 2 20 DACs 17 Event Out 21 f p Digital Out 0 1 24 r p Digital Output 24 Over temperature LED pattern 4 14 45 P Physiological recordings 12 Power brick 3 6 14 27 35 51 Power on self test 14 36 39 41 Primary boot loader 41 Programming manual 5 R Rack mou...

Page 55: ...tor upgrades 41 Send email report 44 Waveform I O voltage range 40 U USB data cable v 6 26 44 USB port 26 W Waveform input channels 15 gain 15 Waveform output channels 17 Waveform system accuracy 42 Windows 7 5 Windows 8 5 Windows Device Manager 7 8 Windows Vista 5 Windows XP 5 ...

Page 56: ...User notes 50 ...

Page 57: ...ts Input impedance 100 kilohms to 5 V Safe voltage range 10 volts Shortest pulse width 1 microsecond Low voltage 0 8 volts Clocks Accuracy drift 0 70 C 50 parts per million Rear panel digital and event inputs Input impedance 4 7 kilohms minimum Safe voltage range 10 volts Shortest pulse width 100 nanoseconds Low voltage 0 8 volts Low current 1 5 milliamps maximum Digital outputs Drive capability 2...

Page 58: ...bridge CB4 0FE UK Tel 44 0 1223 420186 Conforms with the protection requirements of Council Directive 2004 108 EC relating to Electromagnetic Compatibility by the application of the following harmonized EMC standard EN61326 1 2006 Class B COMPLIES FCC CFR47 Part 15 Subpart B Class A COMPLIES Signature Date Peter Rice Technical Director 12 September 2012 ...