Carousel Commutator Designed for NeuroLight Optoelectrodes
The Carousel Commutator R2S2-Vertical is ideal for experiments in which optogenetic stimulation is performed simultaneously with neural recording using digital headstages and the NeuroLight Optoelectrode.
The Carousel Commutator R2S2-Vertical has a light-weight, low-torque, passive design that supports optogenetic experiments using NeuroLight Probes with 12 or 32 µLEDs. The commutator can be used with animals as small as mice.
Features:
- This commutator can accommodate one digital recording headstage, yielding up to 128 channels of neural recording
- This commutator can accommodate one digital stimulating headstage, allowing digital stimulation up to 32 channels
- Designed to integrate Omniplex and the NeuroLight Optoelectrode
Integration Schematic
The diagram illustrates the hardware needed for integrating the OmniPlex® Neural Recording Data Acquisition System with the NeuroLight Stimulator System. A Plexon Sales Engineer is happy to discuss your needs and help your lab set up a neural recording and optogenetic experimental paradigm.
The table below provides many of the most commonly requested specifications.
| Features | PlexBright Dual LED Commutator | PlexBright Dual LED + 16 Channel Commutator | Carousel Commutator | Carousel Commutator R2S2-Vertical | Motorized Carousel Commutator | Remarks | |
| Optical Channels | 2 | 2 | 2 | n/a; LEDs on NeuroLight Probe | 2 | ||
| Plexon data acquisition system compatibility | None | – OmniPlex® D System utilizing either a DigiAmp™ or MiniDigi™ digitizing amplifier, – OmniPlex System utilizing an analog amplifier, or – MAP System | – OmniPlex System utilizing a Digital Headstage Processor (DHP) | – OmniPlex System utilizing a Digital Headstage Processor (DHP) | – OmniPlex System utilizing a Digital Headstage Processor (DHP) | ||
| Headstage compatibility | n/a | 1 analog | Up to 2 digital | Up to 2 digital | Up to 4 digital | ||
| Electrical channels | n/a | 16 | Depends on channels per headstage (up to 64 channels with any combination of 16 or 32 channel headstages) | One digital recording up to 128 ch, one digital stimulation up to 32 channels | |||
| Total lines | 4 | 25 | 20 | 28 | 40 | ||
| LED module compatibility | PlexBright Compact | PlexBright Compact | PlexBright Compact | Compatible with NeuroLight OptoElectrode | PlexBright Compact | ||
| LED module attachment base | Magnetic | Magnetic | Magnetic | n/a | Magnetic | The newer magnetic attachment bases replace the previous screw-attachment bases. | |
| Number of mountable LEDs | 1 or 2 | 1 or 2 | 1 or 2 | n/a; LEDs are on NeuroLight Probe | 1 or 2 | Mixed-mode commutators can be used for nerual recording only, not requiring the simultaneous use of LED modules. | |
| LED control signal lines | 2 pairs | 2 pairs | 2 pairs | n/a | 2 pairs | Using a PlexBright Series-Y BNC cable, both mounted PlexBright LED Modules can be simultaneously controlled with the same control signal as for bilateral experiments. | |
| Maximum current per LED channel | 1.0A | 1.0A | 1.0A | n/a; Current Controlled by the NeuroLight Stimulator | 1.0A | ||
| Actuation mechanism | Passive | Passive | Passive | Passive | Motorized torque arm | A light-weight, low torque design allows for passively driven rotation even with small animals. | |
| Input connectors from LED controller/driver | 2 BNC connectors | 2 BNC connectors | 2 BNC connectors | Digital Stimulating Headstage Cable | 2 BNC connectors | Input power/control signals from the PlexBright 4 Channel Optogenetic Controller or PlexBright LD-1 Single Channel LED Driver. | |
| Output connectors to LED | Two-pin socket connector | Two-pin socket connector | Two-pin socket connector | Digital Stimulating Headstage | Two-pin socket connector | Mates with the two-pin connector on PlexBright Compact LED Modules. | |
| Electrical channel input connector | n/a | Harwin connector | Harwin connector | Harwin connector | Harwin connector | ||
| Commutator dimensions (W x H x D) | 76.2 x 50.8 x 50.6mm (3.0 x 2.0 x 2.5 inches) | 101.6 x 114.3 x 76.2mm (4.0 x 4.5 x 3.0 inches) | 101.6 x 114.3 x 76.2mm (4.0 x 4.5 x 3.0 inches) | 101.6 x 114.3 x 76.2mm (4.0 x 4.5 x 3.0 inches) | 180 x 280 x 127mm (7.1 x 11.0 x 5.0 inches) | ||
| Height below mounting plate | 20.3mm (0.8 inches) | 50mm (2.0 inches) | 31mm (1.22 inches) | 31mm (1.22 inches) | 203mm (8.0 inches) | ||
| OD below mounting plate | 63.5mm diameter (2.5 inches) Recommended cut-out | 63.5mm diameter (2.5 inches) Recommended cut-out | 76.2mm diameter (3.0 inches) Recommended cut-out | 50.8mm diameter (2.0 inches) Recommended cut-out | 114mm diameter (4.5 inches) Recommended cut-out | ||
| Commutator weight | 0.14kg (0.3lbs) | 0.35kg (0.8lbs) | 0.35kg (0.8lbs) | .33kg (.73lbs) | 2.2kg (5lbs) | ||
| Accessories | PlexBright Series-Y BNC Cable | PlexBright Series-Y BNC Cable | PlexBright Series-Y BNC Cable | Clip on Torque Arm | PlexBright Series-Y BNC Cable | The PlexBright Series-Y BNC Cable enables the simultaneous operation of two PlexBright LED Modules from a single channel in which identical parameters are desired for both modules. |
If you have further questions, a Plexon Sales Engineer will be happy to help.
Technical Specs and Data Sheets