W-NXS AND CP-NXS
74-4059—01
12
Grounding
Connect a wire from a nearby earth ground to the protective earth terminal (Phillips-head screw, M4
x
8mm) on the
NXS (see
). Minimum wire gauge (cross section) is 14 AWG (2.5mm
2
).
Figure 10
Connect earth ground using grounding wire to grounding lug.
Keep this grounding wire as short as possible.
USB
Four USB 2.0 ports are available, and are labeled “1”, “2”, “3,” and “4”—see
•
Ports 1 and 2 are “low current” ports, capable of supplying up to 100 mA (0.1A).
•
Ports 3 and 4 are “high current” ports, capable of supplying up to 500 mA (0.5A).
Figure 11
USB, Ethernet, and RS-485 ports.
The typical application for a USB port is for communications to a NXS-UPS. See the
page 13.
USB ports can also be used with a USB-type PC keyboard and PC mouse, if a local console is needed. Note that the
NXS must be rebooted after attaching a PC keyboard for it to be operational.
Earth Ground
Earth Ground
Terminal, M4
x
8mm,
Phillips-head
14 AWG or larger
USB 2.0
Ports (4)
USB Ports 1
and 2 limited to
supplying
100mA each.
1
2
3
4
USB Ports 3
and 4 can
supply up to
500mA each.
Ethernet 1
Primary Port
Ethernet 2
(Use optional)