ADLINK Technology DAQ-2501, User Manual

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14 Signal Connections
Table 3-1: Connector CN1 pin assignment
Legend :
PB3 24 58 PB2
PB1 25 59 PB0
PC7 26 60 PC6
PC5 27 61 PC4
DGND 28 62 DGND
PC3 29 63 PC2
PC1 30 64 PC0
PA7 31 65 PA6
PA5 32 66 PA4
PA3 33 67 PA2
PA1 34 68 PA0
Pin # Signal Name Reference Direction Description
1~4 AO_<0..3> AGND Output Voltage output of DA channel <0..3>
5 AOEXTREF_A/AI_0 AGND Input
External reference for AO channel
<0..3> / AI input 2
6 AI_1 AGND Input AI input 0
7 EXTATRIG/AI_2 AGND Input External analog trigger / AI input 1
8 AOEXTREF_B/AI_3 AGND Input
External reference for AO channel
<4..7> / AI input 3
9~12 AO_<4..7>/AI_<4..7> AGND Output/Input
Voltage output of DA channel <4..7> /
AI channel <4..7> (only for DAQ-
2501)
13,14 AO_TRIG_OUT_<A,B> DGND Output
AO trigger signal for channel <0..3>
<4..7>
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 RESERVED -------- -------- Reserved Pin
21,55 AFI<1,0> DGND Input Auxiliary Function Input
,22,56,23,57
,24,58,25,59
PB<7,0> DGND PIO Programmable DIO of 8255 Port B
26,60,27,61,
29,63,30,64
PC<7,0> DGND PIO Programmable DIO of 8255 Port C
Table 3-2: Connector CN2 pin assignment