PlexBright Dual LED Commutator
The PlexBright Dual LED Commutator is ideal for experiments in which the only tethered cables are as a result of the optogenetic stimulation.
It has a light-weight, low-torque, passive design that supports optogenetic experiments requiring one or two LEDs with animals as small as mice.
It is equipped with magnetic LED module attachment bases for faster interchangability – often valuable once the commutator has been fixed in place in a small enclosure.
The table below provides many of the most commonly requested specifications.
| Features | PlexBright Dual LED Commutator | PlexBright Dual LED + 16 Channel Commutator | Carousel Commutator | Motorized Carousel Commutator | Dual LED + Fluid Swivel Commutator | Remarks |
| Optical Channels | 2 | 2 | 2 | 2 | 2 (Head-Mounted LED) | |
| 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 4 digital | n/a | |
| Electrical channels | n/a | 16 | Depends on channels per headstage (up to 64 channels with any combination of 16 or 32 channel headstages) | n/a | ||
| Total lines | 4 | 25 | 20 | 40 | 1 fluid | |
| LED module compatibility | PlexBright Compact | PlexBright Compact | PlexBright Compact | PlexBright Compact | PlexBright Head-Mounted | |
| LED module attachment base | Magnetic | Magnetic | Magnetic | Magnetic | 2 Pin electrical connector | The newer magnetic attachment bases replace the previous screw-attachment bases. |
| Number of mountable LEDs | 1 or 2 | 1 or 2 | 1 or 2 | 1 or 2 | 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 | 2 pairs | 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 | 1.0A | 0.3A | |
| Actuation mechanism | Passive | Passive | Passive | Motorized torque arm | Passive | 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 | 2 BNC connectors | 2 BNC connector tethers | 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 | Two-pin socket connector | 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 | n/a | |
| 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) | 180 x 280 x 127mm (7.1 x 11.0 x 5.0 inches) | 63.5 x 53.3 x 63.5mm (2.5 x 2.1 x 2.5 inches) | |
| Height below mounting plate | 20.3mm (0.8 inches) | 50mm (2.0 inches) | 31mm (1.22 inches) | 203mm (8.0 inches) | 17.8mm 0.7 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 | 114mm diameter (4.5 inches) Recommended cut-out | 44.5mm diameter (1.75 inches) Recommended cut-out | |
| Commutator weight | 0.14kg (0.3lbs) | 0.35kg (0.8lbs) | 0.35kg (0.8lbs) | 2.2kg (5lbs) | .0.04kg (0.09lbs) | |
| Accessories | PlexBright Series-Y BNC Cable | PlexBright Series-Y BNC Cable | PlexBright Series-Y BNC Cable | PlexBright Series-Y BNC Cable | Clip onTorque Arm | 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