ADLINK MXC-6000 Series - Manual (Page 25)

Introduction 13
MXC-6000
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 2.4KΩ,
and connections between outside signals as shown.
Figure 1-9: Isolated Digital Input Circuit
DI Pin Definition:
IDI_nH
High input of isolated differential DI
channel (n=0 to 7)
IDI_nL
Low input of isolated differential DI
channel (n=0 to 7)
IDI_n Input of isolated DI channel (n=8 to 15)
IGND
Common ground of isolated DI channel 8
to 15
DO Pin
Definition:
IDO_n Output of isolated DO channel (n=0 to 15)
EOGND
Ground return path of isolated DO channel
0 to 15 and ISO5V
VDD
Power input signal for flywheel diode of
isolated DO channel 0 to 15
ISO5V
Isolated 5V DC power, maximum output
180mA
DI
GND
Photocoupler
2.4KŸ IDI_n
IGND