Instruction manual

PC24E/25E
Page 5
PC24E AND PC25E
HIGH SPEED FOUR CHANNEL D to A CONVERTERS
1. GENERAL INFORMATION
1.1 General Description
The PC24E and PC25E are four channel, 12-bit digital to analog converter cards for
installation in an IBM PC/XT/AT, PS2/30 or compatible computer.
The PC24E is a four channel analog voltage output card with individual jumper selectable
output ranges of 0 to +2.5v, ± 2.5v or 0 to +10v, ±10v.
The PC25E is a four channel analog current output card, sourcing 4 - 20 mA between current
output and ground. The output stages of the PC25E can be powered from the internal +12v
supply rail or from a 24 volt external supply when the driven impedance is high.
The flexible addressing system provided on the board allows the base address to be set within
the range 000 to FF0 hex. A set of jumpers allows selection of an interrupt level within the
range IRQ2 to IRQ7.
A 1MHz on-board oscillator provides an accurate source for the counter/timers, independent
of the system clock frequency. The oscillator can be disabled if the small amount of noise
injected into the analog outputs is not acceptable.
Windows DLLs with Visual Basic examples, and demonstration software written in Turbo
Pascal is included.
1.2 What the Package Contains
The package as delivered from Amplicon Liveline Ltd. contains:-
1. The PC24E or PC25E plug-in card protected by an anti-static plastic envelope.
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SOME OF THE COMPONENTS ON THE BOARD ARE
SUSCEPTIBLE TO DAMAGE BY ELECTROSTATIC DISCHARGE, AND PROPER
HANDLING PRECAUTIONS SHOULD BE OBSERVED. AS A MINIMUM, AN EARTHED
WRIST STRAP MUST BE WORN WHEN HANDLING THE PC24E/25E. FULL STATIC
HANDLING PROCEDURES ARE DEFINED IN BRITISH STANDARDS PUBLICATION
BS5753.
WHEN REMOVED FROM THE BAG, INSPECT THE BOARD FOR ANY OBVIOUS SIGNS
OF DAMAGE AND NOTIFY AMPLICON IF SUCH DAMAGE IS APPARENT. DO NOT PLUG
A DAMAGED BOARD INTO THE HOST COMPUTER. KEEP THE PROTECTIVE BAG FOR
POSSIBLE FUTURE USE IN TRANSPORTING THE BOARD.
2. The Windows DLLs and demonstration software on 3.5 inch diskettes (part nº
85956184).
3. This PC24E/25E Instruction Manual (Amplicon part number 859 561 84).
Any additional accessories (terminal assembly and cable etc.) may be packed separately.