Proface APL3000B - Node Box PC - Manual (Page 13)

13
4. Input/Output Signal Line Cautions
• All PS-B Input and Output signal lines
must be separated from all operating
circuit (power) cables.
• If this is not possible, use a shielded cable
and ground the shield.
• To improve noise immunity, it is
recommended to attach a ferrite core to the
power cord.
To prevent the USB cable
from coming off
„ Attaching the USB Cable Clamp
(1) Place the PS-B unit face-down on a flat
surface as shown below. Your PS-B unit
has four USB connectors.
• 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 con-
nector.
• 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.
(2) Fix the USB holder with a screw. The
torque required for this screw is 0.5 to
0.6 N
•m. Next, as shown, insert the USB
Cable Clamp’s band through the hollow
of the holder. Pass the USB cables
through the Cable Clamp’s band and
securely tighten the clamp band around
the cables.
• Be sure the clamp is securely holding the
USB cable’s plug and collar.
• Be sure the clamp is positioned as shown
below, with the clamp pointing upwards -
not to the side. This is to keep the clamp
from interfering with nearby connectors
and their cables.
„ Removing the USB Cable Clamp
(1) To remove the clamp from the USB
cables, push down on the clamp strap’s
clip to release it while pulling up on the
clamp.
Other
Equipment
Common Grounding
(Not OK)
PS-B
Upper USB Interface
Lower USB Interface
Band
Clamp
Cable collar
USB Cable
Clamp
Clip