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090.040-CS (JAN 14)
Page 8
•
Label the ends of each cable, to facili-
tate troubleshooting and identifying in
the future.
•
Test each individual cable run with an
approved CAT5 E cable tester. A TON-
ING alone test is NOT acceptable.
•
Use rubber grommets anywhere that
the cable enters through a hole in a
metal panel.
•
ALWAYS obey local, national and fire
building codes.
Don't:
•
Don't install cable taut, cables must
always have some "play" or slack in
them.
•
Don't over-tighten cable ties.
•
Don't splice a cable. If a break occurs,
or the length is not long enough (under
300 feet), replace the entire run with an
intact length.
•
Don't tie cables to electrical conduits.
•
Don't strip more than one inch from the
end of each cable when installing end
connectors.
•
Don't sharply bend or kink the cable.
•
Don't mix 568A and 568B wiring at the
same installation. 568B is the most
common wiring.
•
Don't use excessive force when pulling
cable.
•
Don't tie shields to ground at both
ends. This may create a ground loop.
Tie shield to ground at one end only.
RJ-45 CONNECTORS
Ethernet network cables require the use of in-
dustry standard RJ-45 plugs as shown below, for
the termination of all cables:
Typical RJ-45 Connector
THE HUB
A Hub is a common connection point for devices
in a network. Hubs are commonly used to con-
nect segments of a LAN (Local Area Network).
They also contain multiple ports. When a data
packet arrives at one port, it is copied to the
other ports so that all segments of the LAN can
QUANTUM™ HD COMPRESSOR CONTROL PANEL
COMMUNICATIONS SETUP
see all packets.
THE SWITCH
Network Switches look nearly identical to hubs,
but a switch generally contains more intelligence
than a hub. By delivering messages only to the
connected device that it was intended for, net-
work switches conserve network bandwidth and
offer generally better performance than hubs.
A Managed Switch is capable of inspecting the
data packets as they are received, determining
the source and destination device of a packet,
and forwarding that packet appropriately.
The Switch takes the signal from each computer/
Quantum™ HD and sends it to all of the other
computers/HD panels in your plant or office.
Switches come in several sizes, noted by the
number of ports available -- a four-port Switch
can connect four computers, an eight-port
Switch can connect up to eight computers and
so on. So, if you start with a four-port Switch but
eventually add more panels, you can buy another
Switch and connect it to the one you already
have, increasing the potential number of panels
on your network.
Typical Switch
Note: If you want to connect one computer to one
Quantum™ HD, you can avoid the switch and use a
crossover Cat 5 cable. With a crossover cable, you di-
rectly connect one Ethernet device to the other with-
out a Switch. To connect more than two you need a
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