Stimulate different sites with 1ms switching times
The D188 Remote Electrode Selector allows you to direct an electrical stimulus of up to 1A (at 400V) from a single stimulator to one of up to eight pairs of electrodes. The D188 is supplied with “virtual front panel” software compatible with WindowsTM 7 and higher, which permits manual switching between stimulation sites via a key-press or mouse click. However, the D188 was predominantly designed for situations where stimulation delivery needs to be rapidly switched between sites under remote, digital control. With switching times of 1ms, the D188 Electrode Selector can be used for demanding stimulation applications involving multi-location stimulation in studies of pain, cognitive behaviour or sensory perception. An example of a typical stimulation system incorporating the D188 is given in the diagram below.
Multiple control methods
Precisely timed remote control is possible through the use of TTL compatible digital lines from your data acquisition system. One to one control requires eight digital inputs, however, the D188 Remote Electrode Selector can also operate in a multiplexed mode where only four digital inputs are required. Alternatively, a USB connection to the host computer allows software control of the D188 via a DLL-based API, which can be accessed using your preferred software (C, C++, Visual Basic, C# etc). The D188 is recognized and controllable as a serial device within LINUX operating systems, although our virtual front panel software is not LINUX compatible.
Designed for human research applications
The D188 is silent in operation and the software control panel allows the operator to toggle the LED indicator lights on and off. As a result, the subject of stimulation is not provided with any audible or visual cues of stimulus delivery. The D188 Electrode Selector is not a medical device and use is restricted to human research applications, however, it has been designed to meet certain aspects of IEC 60601-1 relating to safety.
The D188 is not supplied with any cables for connection to a Digitimer stimulator output, however, depending on your requirements, it is possible to purchase compatible cables.
Multiple Stimulator Connection Options
Connection via D185-HB4 Output Adaptor Cable
For connection via a D185-HB4 Output Extension Cable, please order the D188-09 (2m) or D188-10 (50cm) cables.
Direct Connection to Digitimer DS5, DS7A/AH or DS8R Stimulator Outputs (4mm)
For direct connection to the stimulator 4mm sockets, please order the D188-12 (50cm) cables.
Direct Connection to Digitimer DS2A, DS3 or DS4 Stimulator Outputs (2mm)
For direct connection to stimulators with 2mm TP sockets, please order the D188-11 (50cm) cables.
For any other stimulators, please contact us with details of specification of the output sockets.
- Rapid switching (<1ms) between up to eight pairs of electrodes.
- Digital switching or virtual front panel software control.
- Software compatible with WindowsTM 7 and higher.
- No visual or audible cues of switching (optional LED indicators).
- Designed for safety in human research studies.
D188 Remote Electrode Selector
Virtual Front Panel Software
The latest D188 Control Software (for Microsoft Windows) only works with D188 units updated to use dedicated Digitimer device drivers. If your D188 is currently using generic FTDI drivers (this can be confirmed within the Windows Device Manager), you will need to update the device before using the software below. Please contact us for assistance.
As the D188 is a new product we do not have any publications for it yet.
- D188 Remote Electrode Selector.
- Power Supply with adaptor plates for European, North American and UK plugs.
- USB Cable, 2m long.
- Digital Communication Cable (15-way “D” to bare wires), 1m long.
- Virtual Front Panel Software, supplied on USB stick.
- Operator’s Manual
- D185-HB4 Output Extension Cable.
- Stimulator connection cables (D188-09, D188-10, D188-11 or D188-12)
- Output Extension Cables (D188-13 or D188-14)
- Digitimer Electrical Stimulator.