Do not touch any exposed metal plates or input contacts of the 36-pin Omnetics connectors at the bottom of the CerePlex Exilis when in use. This may result in inducing electric charge to the neural tissue. Irreversible damage may occur.
What This Manual Covers The Blackrock CerePlex Exilis is a fully digital wireless telemetry system for neural recording. The Exilis is used in conjunction with a wireless receiver and either the Cerebus or CerePlex Direct recording system for high fidelity transmission and recording of extracellular spikes and local field potentials from the brain.
Overview of Hardware The CerePlex Exilis system consists of two major subsystems: the headstage transmitter and the wireless receiver. Each component is described in detail below. Accessories included with the system are: • (1) CerePlex Exilis (PN: 10631 (32Ch), 10633 (64Ch), 10451 (96Ch)) •...
Figure 1. CerePlex Exilis On/Off Switching Power to the CerePlex Exilis headstage is provided by a rechargeable lithium-ion battery housed within the headstage. A magnetic reed switch is used to power cycle the device. To turn the power on or off, swipe the magnetic wand provided with the system across the area shown in Figure 2.
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CerePlex wireless receiver must be tuned to the same frequency as the transmitter. This process is described in Setting Up the CerePlex Exilis section below. It is possible to use two complete CerePlex Exilis systems together for a total of 192 channels if they are tuned to different frequencies. Contact a Blackrock Microsystems representative if you are interested in using two CerePlex Exilis systems simultaneously.
Reference Selection CerePlex Exilis has a versatile reference selection feature that offers customers great freedom on selecting the proper reference for their setup and achieving optimal noise performance. There are two reference wires connected to the Omnetics connector of each bank. These two wires are shorted on the device to form a single reference, labeled as A, B, C (in Figure 5).
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They have a wide beam width of over 50° to better cover an experimental area. The antenna cables are low-loss coaxial cables specifically designed for high performance at the frequency range used by the CerePlex Exilis system.
If a metal cage must be used, place the antennas within the cage. 7. The CerePlex Exilis has a range of approximately 1 m. Every area of the cage should be within 1 m of at least two antennas.
Data Validation, Page 17). See Figure 12 for a model antenna placement scheme for this condition. 9. In setups where the CerePlex Exilis IS expected to move throughout the entire enclosure, it is beneficial to ensure the entire enclosure gets maximum antenna coverage.
Testing and Calibrating the Wireless System 1. Place the CerePlex Exilis headstage and DNSS in the experimental area. 2. Turn on the CerePlex Exilis headstage using the magnetic wand as shown in Figure 2 above. 3. Turn on the CerePlex Exilis receiver by pressing the round power switch shown in Figure 8 above.
LOL check can then move to the next Frame Check process. Frame Check (FC) Data frames sent from the CerePlex Exilis begin with a 24-bit sync signal and end with a 48-bit suffix. Once a sync signal is identified, the remaining bits are read for the frame.
Unlike the ISL protocol, the checksum protocol requires only one antenna input channel to operate. The last 12 bits of the CerePlex Exilis’s frame are the sum of all previous 12-bit segments within that frame. Integer overflow is handled by wrapping.
Warranty Blackrock Microsystems (“Blackrock”) warrants its products are free from defects in materials and manufacturing for a period of one year from the date of shipment. At its option, Blackrock will repair or replace any product that does not comply with this warranty. This warranty is voided by: (1) any modification or attempted modification to the product done by anyone other than an authorized Blackrock employee;...
Return Merchandise Authorization (RMA) In the unlikely event that your CerePlex Exilis needs to be returned to Blackrock for repair or maintenance, do not send any equipment back without a Return Merchandise Authorization Number. An RMA number will be issued to you by a Blackrock representative. If you need to obtain an RMA number, you may contact a product support representative at +1 (801) 582 5533 or by emailing support@blackrockmicro.com.
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