Proface APL3000B - Node Box PC - Manual (Page 72)

Chapter 3 Installation and Wiring
3-15
3.2.5 USB Cable Clamp Attachment/Removal
This clamp is used to prevent the USB cable connected to the USB Host Interface on the bottom of the PS-A
unit from being unplugged due to vibration or other causes.
„ Attachment
(1) Place the PS-A unit face-down on a flat surface as shown below. Your PS-A unit has four USB
connectors.
(2) For PS-3450A Series, unscrew the screws (2) from the Expansion Board Cover, and open the cover.
• When using two or more USB ports, be sure to first connect one USB cable to the upper
USB connector, and then connect the second USB cable to the lower USB connector.
• When using only one of the USB ports, be sure to use the upper USB connector. This
allows you to securely clamp the USB cable in the cable clamp.
Upper USB Interface
Lower USB Interface
Upper USB Interface
Lower USB Interface
PS-3450A Bottom PS-3451A Bottom
(This figure is PS3450A-T41.)