CH0-,CH0+,...,CH7-,CH7+ : Analog inputs to the analog to digital converter. Amplitude and
polarity depend upon jumper settings. T he input resistance of these lines is 1.5K ohms
typical.
AOUT0, AOUT1: Analog outputs from the d igital to analog converters. Polarity and
maximum amplitude depend on the jumper settings and voltage refe rences. Output
resistance of the analog outputs is typically 70 ohms.
VREF0, VREF1: External voltage references for the digital to analog converters. Input range
is 0 to 5.5 volts with a no-load input resistance of 7.5K ohms.
EXT CLK, EXT TRG, EXT INT: External clock, trigger, and interrupt inputs respectively.
Inputs are TTL compatible.
DOUT0, DOUT1, DOUT2, DOUT3: TTL compatible digital output lines.
DIN0, DIN1, DIN2, DIN3: TTL compatible input lines.
DAQ-16 Users Manual 24