Multichannel Systems LTP-Director Manual - Manual (Page 19)

Welcome to the LTP-Director
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6. Connect the Stimulus A and B plugs (2 mm) of the MEA1060-BC amplifiers to the Stimulus OUT
plugs (2 mm) on the front panel of the STG. Additionally you have to connect the Ground GND
plugs (2 mm) of the MEA1060-BC amplifiers to the STG (not listed). Please connect the Stimulus A
plug of MEA A amplifier to Stimulus OUT 1 of the STG, and Stimulus B of MEA A to Stimulus
OUT 2 of the STG. Connect the Stimulus A plug of MEA B amplifier to Stimulus OUT 3 of the STG,
and Stimulus B of MEA B to Stimulus OUT 4 of the STG. Connect the Stimulus A plug of MEA C
amplifier to Stimulus OUT 5 of the STG, and Stimulus B of MEA C to Stimulus OUT 6 of the STG.
Connect the Stimulus A plug of MEA D amplifier to Stimulus OUT 7 of the STG, and Stimulus B
of MEA D to Stimulus OUT 8 of the STG.
Note: It is not possible to connect, for example, two STG4002 for running two instances
of LTP-Director with an USB-ME128 device. Respectively, it is not possible to connect more
than one STG for running four instances of LTP-Director with an USB-ME256 device.
Software Settings
With the USB-ME256-System you are able to control up to four MEA1060-BC amplifiers with up
to four instances of LTP-Director independently from a single computer. When starting more
than one instance of LTP-Director in parallel, be aware that the USB-ME256 device is still a single
hardware component only. That is why the first instance of LTP-Director is acting like the master
of all following instances for some hardware dependent settings. You can change the sampling
frequency and the voltage input range in the hardware dialog of the main menu "Settings" in
the first instance of LTP-Director only. The settings are saved in the "*.ini" file, and used for the
following instances, respectively. The settings in Hardware tab are disabled in LTP-Director
instances 2, 3 and 4. If you like to change hardware settings, please close all running instances
of LTP-Director, and start the first instance again. All other settings can be adjusted for each
amplifier independently in the assigned LTP-Director instance.
Click Hardware tab in main menu "Settings" in the first instance of LTP-Director and select the
ME256. You can adjust the input voltage range and the sampling frequency for all connected
amplifiers.
In the Control Window of the Test Mode, the hardware configuration and the number of
the instance are displayed. Select the correct computer COM port for that instance (see table),
the correct STG4008, and the MEA layout from the drop down menus.