Table 3-4: cn1/cn2 signal description – ADLINK DAQe-2214 User Manual
Page 35

Signal Connections
23
CN1/CN2 Connector Signal Description
Signal Name
Reference Direction
Description
AIGND
—
—
Analog ground for AI. All three ground
references (AIGND, AOGND, and
DGND) are connected together on
board.
AI<0..63/95>
AIGND
Input
Analog Input Channels 0 - 16. Each
channel pair, AI<i, i+8> (I=0..7) can be
configured on either two single-ended
inputs or one differential input pair
(marked as AIH<0..8> and AIL<0..8>).
AISENSE
AIGND
Input
Analog Input Sense. This pin is the
reference for any channels AI<0..63>
in NRSE input configuration.
EXTATRIG
AIGND
Input
External AI analog trigger
DA0OUT
AOGND
Output
AO channel 0
DA1OUT
AOGND
Output
AO channel 1
AOEXTREF
AOGND
Input
External reference for AO
channels
AOGND
—
—
Analog ground for AO
EXTWFTRIG
DGND
Input
External AO waveform trigger
EXTDTRIG
DGND
Input
External AI digital trigger
RESERVED
—
Output
Reserved. Leave these open.
GPTC<0,1>_SRC
DGND
Input
Source of GPTC<0,1>
GPTC<0,1>_GATE
DGND
Input
Gate of GPTC<0,1>
GPTC<0,1>_OUT
DGND
Input
Output of GPTC<0,1>
GPTC<0,1>_UPDOWN
DGND
Input
Up/Down of GPTC<0,1>
EXTTIMEBASE
DGND
Input
External Timebase
DGND
—
—
Digital ground
PB<7,0>
DGND
PIO*
Programmable DIO of 8255 Port B
PC<7,0>
DGND
PIO*
Programmable DIO of 8255 Port C
PA<7,0>
DGND
PIO*
Programmable DIO of 8255 Port A
AFI0
DGND
Input
Auxiliary Function Input 0
(ADCONV, AD_START)
AFI1
DGND
Input
Auxiliary Function Input 1 (DAWR,
DA_START)
Table 3-4: CN1/CN2 Signal Description