The GX5641 is a 3U PXI instrument card with two operation modes:
Independent mode features (JP2 Installed)
Total of 64 individual channels each capable of converting TTL to Differential or Differential to TTL.
Each channel conversion operation is predefined using DIP-switches. Converting TTL to Differential or Differential to TTL.
Channel conversion settings are automatically loaded on power up.
The board is disconnected from the PXI interface and operates without any interaction with the host computer.
J1 TTL connector has 40 TTL channels assigned to it and J2 TTL connector has 24 TTL channels. The Differential connectors, J3 and J4, have 32 channels each.
A 100-Ohm terminator is present for each Differential I/O channel.
Software Controlled mode features (JP2 Not Installed)
Each channel can be programmed to operate in Conversion or Static I/O mode.
In Conversion mode the board has 64 individual channels.
In Conversion mode each channel can be programmed to convert Differential to TTL or TTL to Differential.
In Static I/O mode the board has 64 individual channels each with TTL and Differential ports for a total of 128 individual Digital I/O ports.
In Static I/O mode each channel’s port direction can be individually set as an output or input, e.g. Channel 1 Differential port as an output and Channel 1 TTL port as an input.
TTL and Differential input signals can be monitored for all modes of operations.
The Channels' predefined DIP-Switch conversion operation can be loaded at any time overriding current settings (predefined defaults).
Each channel’s TTL and Differential output ports can be individually enabled/disabled through software control.
On power up all 64 channels' outputs are disabled.
A 100-Ohm terminator is present for each Differential I/O channel.