Multichannel Systems MEAS42+MEASwitchUSB Manual - Manual (Page 18)

MEA S4/2 Manual
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Possible causes:
? The USB cable is not plugged in correctly to the USB port of the computer and / or
to the MEA S4/2.
 Select another USB port from the data acquisition computer and test the connection again.
? The MEA S4/2 is not connected to a power supply.
 Check all cables and connections.
? The MEA S4/2 is not connected to the computer.
 Check the USB cable. Make sure the MEA S4/2 and the computer are connected directly
with the provided USB cable. Make sure all cables are plugged in properly. Replace the
cable if the problem persists.
5.3 Problems with Single Channels
You are not able to record signals from one MEA amplifier on single channels. You may
also see wrong signals on single channels due to a crosstalk between different channels.
Possible causes:
? This can happen if the 68-pin MCS standard connectors are not carefully plugged into the
MEA S4/2. Single pins may have a bad connection. If single pins have no (or a bad) connection,
you are likely to see wrong signals due to a crosstalk between channels.
 Carefully check all connections and cables. Make sure the connectors are plugged in so that both
input cables are oriented to opposite sides, avoiding that the connectors and cables mechanically
interfere with each other. See also chapter “Setting Up and Connecting the MEA Switch”.