Multichannel Systems Portable_ME-System Manual - Manual (Page 19)

The Portable ME-System
15
1 x Analog Input for μPA32
Additionally is on the right side of the front panel of the Portable ME32-System one analog input (female
D-SUB 44 connector) for a micro preamplifier μPA16 available. Please read the μPA16+32 Manual for
setting up the μPA16.
Note: Only the MPA8I inputs - or - the μPA16 input can be used at a time, as they connect to the same
channels on the filter amplifier.
Power LED
The power LED should light up as soon as the system is connected to the power supply and
the I / O toggle switch on the rear panel is switched to status "I = On".
5.2.2 Rear Panel
Note: Using a USB hub for connecting the Portable ME16-System to the computer is not recommended.
The system needs a broad bandwidth for the data transmission. Recording might not be possible, especially
if a second device that sends or receives continuous data streams, for example, a web cam or USB speakers,
is connected to the same USB port.
Warning: Please read the separate manuals of all devices before installation, especially the warnings
and safety information. Make sure all devices are switched off before you connect them to the power
supply. Damage to the devices and even fatal injuries may result from improper installation or use.
DIGITAL IN / OUT
A Digital IN / OUT for 16 digital in- and output bits is available (68-pin MCS standard connector). The Digital
IN / OUT connection accepts or generates standard TTL signals. A TTL pulse is defined as a digital signal for
communication between two devices. A voltage between 0 V and 0.8 V is considered as a logical state of
0 (LOW), and a voltage between 2 V and 5 V means 1 (HIGH).
The Digital OUT allows generating a digital signal with up to 16 bits and read it out. You can utilize this
digital signal to control and synchronize other devices with the Portable ME16-System. Bit 0 of the Digital
OUT is separated and available as Lemo connector DIG OUT D0.. Please read chapter "Pin Layout" (Digital
IN / OUT connector) in the Appendix for more information.
The Digital IN can be used to record additional information from external devices as a 16-bit encoded
number. The Digital IN is most often used to trigger recordings with a TTL signal from a stimulator.
One bit of the DIG OUT and DIG IN, respectively, are directly accessible via Lemo connectors. If you need
all bits, a Di/o box is available which provides a BNC connector for each bit
(http://www.multichannelsystems.com/products/dio).