ADLINK Technology DAQ-20 Series, Руководство пользователя

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Signal Connections
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17
Legend:
Pin # Signal Name Reference Direction Description
1~4 CH<0..3>+ CH0<0..3>- Input
Differential positive input
for AI channel <0..3>
5 EXTATRIG AIGND Input External AI analog trigger
6 DA0OUT AOGND Output AO channel 0
7 DA1OUT AOGND Output AO channel 1
8 AOEXTREF AOGND Input
External reference for AO
channels
9~12
SDI<3..0>_1 (2010)
NC (2005/2006)
DGND Input
Synchronous digital inputs
13 AO_TRIG_OUT DGND Output AO trigger signal
14 AI_TRIG_OUT DGND Output AI trigger signal
15,16 GPTC<0,1>_SRC DGND Input Source of GPTC<0,1>
17,51 GPTC<0,1>_GATE DGND Input Gate of GPTC<0,1>
18,52 GPTC<0,1>_OUT DGND Input Output of GPTC<0,1>
19,53 GPTC<0,1>_UPDOWN DGND Input Up/Down of GPTC<0,1>
20 EXTTIMEBASE DGND Input External TIMEBASE
21,28,49,
50,54,62
DGND -------- -------- Digital ground
22,56,23,
57,24,58,
25,59
PB<7,0> DGND PIO*
Programmable DIO pins
of 8255 Port B
26,60,27,
61,29,63,
30,64
PC<7,0> DGND PIO*
Programmable DIO pins
of 8255 Port C
31,65,32,
66,33,67,
34,68
PA<7,0> DGND PIO*
Programmable DIO pins
of 8255 Port A
35~38 CH<0..3>- -------- Input
Differential negative input
for AI channel <0..3>
39 AIGND -------- -------- Analog ground for AI
40~42 AOGND -------- -------- Analog ground for AO
43~46
SDI<3..0>_0 (2010)
NC (2005/2006)
DGND Input
Synchronous digital inputs
47 EXTWFTRIG DGND Input
External AO waveform
trigger
48 EXTDTRIG DGND Input External AI digital trigger
21 AFI1 DGND Input
Auxiliary Function Input 1
(ADCONV, AD_START)
55 AFI0 DGND Input
Auxiliary Function Input 0
(DAWR, DA_START)
Table 4: 68-pin VHDCI-type Connector Legend
*PIO means programmable I/O