ADLINK MXC-2300 - Manual (Page 28)

PRELIMINARY
16 Introduction
Table 1-4: Digital I/O Connector Pin Legend
1.6.1 Isolated Digital Input Circuits
Input accepts voltages up to 24V, with input resistors of 8.2 kΩ,
with connections between outside signals as shown.
DI
DIn_H
High input of isolated differential DI channel
(n=0 to 7)
DIn_L
Low input of isolated differential DI channel
(n=0 to 7)
DIn
Input of isolated DI channel
(n=8 to 15)
ISO_COM
Common ground of isolated DI channel
8 to 15
DO
DOn
Output of isolated DO channel
(n=0 to 15)
EOGND
Ground return path of isolated DO channel
0 to 15 and +V5DIO_CN_ISO
+VDD
Power input signal for flywheel diode of isolated
DO channel
0 to 15
+V5DIO_CN_ISO Isolated 5V DC power, maximum output 180mA
DI_n
GND
Photocoupler
8.2K Ohm DIn
ISO_COM