ADLINK USB-7250 - Manual (Page 32)

22 Introduction
Table 1-3: USB-7250 Pin Assignment
Table 1-4: USB-7250 I/OSignal Description
4 COM1 24 DI1L
3 NC0 23 DI1H
2 NO0 22 DI0L
1 COM0 21 DI0H
Signal Name Reference Direction Description
COM<0..7> ---------- I Common pin of relay <0..7>
NO<0..7> COM<0..7> I Normal open pin of relay
<0..7>
NC<0..3> COM<0..3> I Normal close pin of relay
<0..3>
DI<0..7>H DI<0..7>L I High input of isolated
differential digital input
DI<0..7>L -------- I Low input of isolated
differential digital input
CNT<0,1> GND<0,1> I Frequency/event counter
channel
GND<0,1> -------- Ground of Frequency/event
counter
Pin Function Pin Function