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J & J devices
Appendix 8: J & J devices
Make sure the appropriate batteries are installed in the device.
The C2 and C2mini are only supported using the supplied USB adapter.
Connect the USB adapter to the DB-9 connector on the C2mini.
Exit EEGer if it is running.
Plug the USB cable into an open USB connector on the computer.
Acknowledge Windows "New Device" sequence (the Human Interface Device drivers are already installed so no new drivers are required). This usually only needs doing the first time the device is plugged in.
Start EEGer.
Select Preferences->Configuration
Select the Devices tab.
Select the correct device type under Source of EEG/peripheral data.
Click on Store.
Note: You must select the correct device type. The C2 and C2mini have incompatible internal scale codes. If the incorrect type is selected, the amplitudes of the signals shown will NOT be correct.
Problems Connecting J&J Amplifier
This document applies to amplifiers manufactured by J&J Technologies, including:
MESSAGE RECEIVED: "C2 not echoing settings" or "Check batteries or polarity"
POSSIBLE CAUSES:
1. Batteries are too low to recognize - try changing again even if you think they're new.
2. The batteries are not inserted in the correct direction.
3. The amplifier was not unplugged from the computer when the batteries were changed.
4. Windows is "confused" about the device: Try connecting to a different USB port if one is available.
5. Windows is "confused" about the device: Unplug the amplifier and turn off the computer. Restart. After Windows is finished booting, re-connect the amplifier.
6. You're running an older version of EEGer (pre-September 2007) that does not have the latest support program for the amplifier. EEGer downloads are available from: www.eegspectrumsystems.com/support/supportFAQ.html <http://www.eegspectrumsystems.com/support/supportFAQ.html>
7. The amplifier is "stuck" in a non-EEG mode: Exit EEGer. Disconnect the amplifier from the USB port. Remove the batteries, letting the amplifier sit for 15 minutes or so with no batteries inserted. Replace the batteries, plug into computer and restart EEGer.
If these steps don't work, it may be necessary to send the amplifier to J&J Technologies for repair. Please let us know. An ESI Affiliate membership entitles you to access to a loaner amplifier (subject to availability).
J&J Engineering, Inc.
22797 Holgar Ct. NE
Poulsbo, WA 98370
PHONE: 360-779-3853
Toll Free U.S.: 888-550-8300
FAX: 360-697-4435
techsupport@jjengineering.com <mailto:techsupport@jjengineering.com>
<http://www.jjengineering.com/>