ADLINK PXI-2502 - Manual (Page 23)

Signal Connections
• 15
Legend :
Pin # Signal Name Refer-
ence 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_
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
31,65,32,66,
33,67,34,68 PA<7,0> DGND PIO Programmable DIO of
8255 Port A
35~46 AGND -------- -------- Analog ground
47,48 EXTWFTRIG_> DGND Input External waveform trigger
for AO channel <0..3>
<4..7>
49 VCC DGND Power
(Output) +5V Power Source
28,50,54,62 DGND -------- -------- Digital ground
*PIO means Programmable Input/Output
Figure 3.1.2 Connector CN2 pin assignment