ADLINK PCI-8164 - Manual (Page 37)

Installation 25
2.8 CN1 pin assignments: External Power Input (PCI-
8164 only)
NOTES
X
CN1 is a plug-in terminal board with no screws.
X
Use the external power supply. A +24V DC is used by exter-
nal input/output signal circuits. The power circuit configura-
tion is shown below.
X Wires for connection to CN1:
Z Solid wire:
ϕ
0.32 mm to
ϕ
0.65 mm (AWG28 to AWG22)
Z Twisted wire: 0.08 mm
2
to 0.32 mm
2
(AWG28 to AWG22)
Z
Naked wire length: 10 mm standard
The diagram below shows the external power supply system of
the PCI-8164. An external +24V power must be provided. An on-
board regulator generates +5V for both internal and external use.
CAUTION The output current capacity of the +5V power source from
the onboard DC/DC is limited. DO NOT use this to drive
several devices simultaneously, especially stepper mo-
tors or external encoders.
NOTE MPC-8164 and PXI-8164 do not have the CN1 for power
input. Use the E_24V and EGND pins of CN2. L is an in-
ductor for EMI use.
CN1 Pin No Name Description
1 EGND External power ground
2 CN1_24V +24V DC
±
5% External power supply