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Copyright 2001 Diamond Systems Corp. Ruby-MM-1612 User Manual V1.1 P. 3
RUBY-MM-1612 16-Channel Analog Output PC/104 Module
1. DESCRIPTION
Ruby-MM-1612 is a PC/104-format data acquisition board that provides analog outputs and digital I/O for
process control and other applications. Below is a summary of key features:
Analog Outputs
Ruby-MM-1612 has 16 analog voltage outputs with 12-bit resolution (1 part in 4096).
⇒⇒ Note: Analog output, D/A, and DAC are all used interchangeably in this manual.
Multiple Full-Scale Output Ranges
Six different preset ranges are available, including both bipolar and unipolar ranges.
Adjustable Full-Scale Output Range
One of the preset ranges (2.5V full-scale) can be adjusted by the user to any voltage between
approximately 1V and 2.5V.
Simultaneous Update
All 16 analog outputs are updated simultaneously. This prevents time skew errors which can
result from updating outputs sequentially on a system which requires two or more control signals
to change simultaneously.
External Trigger
An external trigger signal can be connected to the board. This trigger can be used to update the
analog outputs. The trigger is enabled in software.
Digital I/O
An 82C55 chip is included to provide 24 lines of digital I/O. Each line has a 10KΩ pull-up resistor.
Each line is CMOS / TTL compatible and can supply up to ±2.5mA of current.
+5V Operation
Ruby-MM-1612 requires only +5VDC from the system power supply for operation. It generates its
own ±15V supplies for the analog circuitry on board using four miniature DC/DC converters.