Related Manuals for Digitimer D188
Summary of Contents for Digitimer D188
- Page 1 Digitimer D188 REMOTE ELECTRODE SELECTOR OPERATOR’S MANUAL For Research Use Only “ Digitimer” is a registered trade mark of Digitimer Limited...
- Page 2 Digitimer Ltd – D188 Operator’s Manual Version 1.2 Digitimer Limited 37 Hydeway Welwyn Garden City Hertfordshire AL7 3BE Tel: +44 (0)1707 328347 Fax: +44 (0)1707 373153 E-mail: sales@digitimer.com technical@digitimer.com Website: www.digitimer.com...
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Page 3: Table Of Contents
Section 4 System Operation .........................15 Introduction ..............................15 Connecting the D188 to an Electrical Stimulator ..................16 Connecting to a Digitimer DS5, DS7A, DS7AH, DS7R or DS8R Stimulator ..........16 Connecting to a Digitimer DS2A, DS3 or DS4 Stimulator ..............16 Connecting to other Stimulators ......................16 Connecting the D188 to Stimulating Electrodes ..................16... - Page 4 Digitimer Ltd – D188 Operator’s Manual Version 1.2 1:1 Digital Control ..........................17 4:8 Digital Control ..........................18 Delay/De-bounce ..........................18 Minimum Switching Times & Stimulus Pulse Duration.................18 Digital Control Voltage Requirements ....................19 Using the API for Third Party Software Control ..................19 Example Applications ..........................19...
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Page 5: Section 1 General Information
Although the D188 has been designed with human applications in mind, the D188 is not a medical device, so its use is limited to research applications. It should not be used for patient treatment or diagnostic... -
Page 6: Unpacking The D188
1.5mm DIN42802 touch-proof connectors. Mains Connections The D188 is shipped with a 100V-240V input power supply and plug adaptor plates for UK, European (Schuko) or North American wall sockets. For countries that do not use one of these types of socket, we... -
Page 7: Specifications
Digitimer Ltd – D188 Operator’s Manual Version 1.2 Specifications Maximum Stimulus Input Voltage: 400V. Maximum Stimulus Input Current: Minimum Switching Interval: 1ms. Digital Input Requirements: TTL Logic (5V). Front Panel Connections: Common (COM) Inputs: One red, one black 1.5mm DIN 42802 male sockets. - Page 8 Digitimer Ltd – D188 Operator’s Manual Version 1.2...
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Page 9: Section 2 D188 Installation
Digitimer Ltd – D188 Operator’s Manual Version 1.2 Section 2 D188 Installation Hardware Overview D188 Front Panel LED Indicator Stimulator Input Sockets (one pair) Electrode Connection Sockets (8 pairs) D188 Rear Panel 15-way Digital 12V Power Input Input Socket USB “B” Socket... -
Page 10: D188 Digital Input Socket
Installing the D188 Remote Electrode Selector Hardware Once the software has been installed on the host PC, the D188 can be connected to the computer. 1. Connect the supplied USB cable between the D188 and a free USB port on the host PC. - Page 11 2. Connect the 12V power supply adaptor to a powered wall socket the other end to the D188 rear panel power input. 3. There may be a delay of up to a minute as the D188 device drivers are detected and installed by the Windows operating system.
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Page 12: Section 3 Software Overview
Software Overview Introduction The D188 Control App Software is a virtual front panel for the D188 and allows the operator to manually switch channels using a left mouse click or keyboard number keys. The software also controls the operating modes of the D188, whether the LEDs associated with an active channel are illuminated and the Delay/De-bounce setting. -
Page 13: Usb (Manual) Control Mode
It is then possible to activate individual channels by left clicking on each numbered button or using the 1 to 8 keys on the keyboard. The active channel is indicated by a green circular highlight within the software and a front panel LED on the D188 itself. - Page 14 Digitimer Ltd – D188 Operator’s Manual Version 1.2...
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Page 15: Section 4 System Operation
Once the operator is familiar with the D188 hardware and understands how the control software is operated, the next step is connection of the D188 to the source of stimulation, the stimulation electrodes and the digital trigger source. A schematic of a typical setup is given below. -
Page 16: Connecting The D188 To An Electrical Stimulator
D185-HB4 Output Extension Cables. If a D185-HB4 cable is not used, we offer the D188-12, which is a 50cm pair of cables with 4mm touch- proof connectors at the stimulator end and 1.5mm touch-proof female connectors at the D188 end. -
Page 17: Using Multiple D188'S With A Single Stimulus Source
Using Multiple D188’s with a Single Stimulus Source In order to use more than one D188 and a single stimulator, it will be necessary for the user to connect the stimulus source, in parallel, to the COM inputs of each D188. In this case, our D185-HB1 output adaptor cable would be a suitable alternative to our D185-HB4. -
Page 18: 4:8 Digital Control
If eight digital outputs are not available, the operator can choose to use four digital outputs, defining a 4- bit binary string that the D188 receives through pins 1 – 4 (D0 – D3). As with 1:1 mode, channels remain active while the appropriate inputs are held TTL high. -
Page 19: Digital Control Voltage Requirements
Digital Control Voltage Requirements In the 1:1 mode the D188 requires +4V (@ 50µA), but when operated in 4:8 control mode, i.e. specifying the active channel using a 4-bit binary string rather than using 8 digital inputs, then the required voltage is lower and a device generating +3.3V would be adequate. - Page 20 Digitimer Ltd – D188 Operator’s Manual Version 1.2 Digitimer Limited 37 Hydeway Welwyn Garden City Hertfordshire AL7 3BE Tel: +44 (0)1707 328347 Fax: +44 (0)1707 373153 E-mail: sales@digitimer.com technical@digitimer.com Website: www.digitimer.com File Reference: N:\Docs\Company\Manuals\D188\D188_Manual_v1.2.docx Last updated: 30/09/21...
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