Quick Installation Guide
2
3
CheetaHub Power-3008D
CheetaHub Power-3008F
Check if network cables and connectors needed for installation are available.
The CheetaHub can be located anywhere there is a enough flat space, such as on
a table or desktop. A good location is at the center of all the devices you want to
link, close to a collapsed backbone, and near a power outlet.
1. Stick the self-adhesive rubber foot pads (that come with this package) on each of
the 4 concave spaces located on the bottom of the hub.
2. Place the hub on a firm flat surface.
3. If you need to stack the hub, repeat step 1 for each hub before stacking them.
The rubber foot pads cushion against shock/vibrations and provide space
between each hub for ventilation.
Connecting the Hub
This hub has 8 RJ-45 station ports and a daisy-chain port on the front panel that
support connection to 100Mbps Fast Ethernet. The RJ-45 (MDI-X) station ports
allow you to make connections to devices such as a workstation, server or router;
while the daisy-chain port permits you to cascade the hub to another compatible
hub or switch by running straight-through twisted-pair cable to a station port on
another device.
Making a Connection via an MDI-X Station Port
You can connect any RJ-45 (MDI-X) station port on the hub to any 100Mbps device
that uses a standard network interface such as a workstation or server, or to a
network interconnection device such as a bridge or router (depending on the port
type implemented).
1. Prepare the network devices you wish to network. Make sure you have installed
100BASE-TX network interface cards for connecting to the hub's RJ-45 (MDI-X)
station ports. You also need to prepare straight-through shielded or unshielded
twisted-pair cables with RJ-45 plugs at both ends. Use 100
W
Category 5 cable
for all connections.
2. Connect one end of the cable to the RJ-45 port of the network interface card,
and the other end to any available (MDI-X) station port on the hub. When inserting
an RJ-45 plug, be sure the tab on the plug clicks into position to ensure that it is
properly seated. Using the hub in a stand-alone configuration, you can network up
to 8 end nodes.
I
Do not plug a phone jack connector into any RJ-45 port. This may damage the
hub. Instead, use only twisted-pair cables with RJ-45 connectors that conform
with FCC standards.
Notes:
1. Make sure each twisted-pair cable does not exceed 100 meters (328 feet).
2. When using Port 8, do not use the daisy-chain port.
Making a Connection via the MDI Daisy-Chain Port
1. To make a direct connection to a compatible hub or switch, use the MDI daisy-
chain port.
2. Prepare straight-through shielded or unshielded twisted-pair cables with RJ-45
plugs at both ends. Use 100
W
Category 5 cable for all connections. Connect
one end of the cable to the daisy-chain port on this hub, and the other end to a
standard MDI-X station port on the other device. When inserting an RJ-45 plug,
be sure the tab on the plug clicks into position to ensure that it is properly seated.
Notes: 1. In compliance with the IEEE 802.3u Class II repeater specification, you
can only use up to 5 meters (16 feet) of cable to cascade two repeaters
together in a single collision domain. Also note that you can only cascade
up to two Class II Fast Ethernet hubs together in a single collision domain.
2. The above restrictions do not apply to a switch, because it breaks up the
collsion domain. The number of devices that can be cascaded when
using switches is therefore theoretically unlimited. However, in practice,
the length of a cascade may be limited by the time-out requirements of
the particular applications running over the network. When cascading
the hub to a switch, you can use up to 100 meters (328 feet) of cable.
3. When using the daisy-chain port, do not use Port 8.
4. If the daisy-chain port is not available, you can also connect to another
hub or switch by running straight-through twisted-pair cable from any
MDI-X station port on this hub to a daisy-chain port on another device.
However, if you must connect to another device via station ports at both
ends of the cable, use crossover cabling.
Powering on the Hub
1. Plug the power cord into the power socket at the rear of the hub.
2. Plug the adapter (for the EH3008D) or the other end of the power cord (for the
EH3008F) into a power outlet.
2. Check the LED marked Power on the front panel to see if it is on.
Note
: The unit supports a "hot remove" feature which permits you to connect/
disconnect cables without powering off the hub and without disrupting the
operation of the devices attached to the hub.
Verifying Port Status
Check each connection by viewing the port status indicators shown in the following
figure and table.
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Verifying System Operation
Verify that all attached devices have a valid connection. The hub monitors the link
status for each port. If any device is properly connected to the hub and
transmitting a link beat signal, the Link indicator will light up for the corresponding
