Quick Installation Guide
CheetaHub Power-3016G/3024G
4
5
Powering On the Hub
1. Plug the power cord into the power socket at the rear of the hub, and the other
end into a power outlet.
2. Check the LED marked Power on the front panel to see if it is on. The unit will
automatically select the setting that matches the connected input voltage.
Therefore, no additional adjustments are necessary when connecting it to any
input voltage within the range marked on the rear panel.
3. The hub performs a self-diagnostic test upon power-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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1
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 port. If the
Link indicator fails to light, see Troubleshooting on page 6.
Applications
These dual-speed CheetaHubs allow great flexibility in configuring your network. You
can use them to mix and match legacy Ethernet and Fast Ethernet network resources
on your local network. Moreover, you can easily extend your LAN by making a high-
speed connection to a collapsed backbone device (e.g., a switch or a router).
Stand-Alone Network
- These CheetaHubs have an internal switching function that
can be used in a simple stand-alone configuration as illustrated in the following figure.
Regardless of whether you are making 10 or 100 Mbps connections with twisted-pair
cable, limit the distance for each cable to 100 meters (328 feet).
Cascading Hubs with the Daisy-Chain Port
- You can easily connect to another
hub or switch via the RJ-45 MDI daisy-chain port on the front panel. The figure
below shows a sample configuration. When connecting to 10 Mbps Ethernet, the
maximum number of hubs that can be cascaded is four (with up to 100 meters or
328 feet of cable allowed between each hub). However, when connecting to another
Fast Ethernet hub, the number of hubs that can be cascaded is limited to two, and
the total network span allowed is only 205 meters (672 feet).
Connecting to a Network Backbone
- You can easily connect to a collapsed
backbone switch via the RJ-45 MDI daisy-chain port on the front panel. Because a
switch breaks up the collision domain, it can be used to connect multiple CheetaHubs.
Product Specifications
Repeater Criteria
Access Method
CSMA/CD, 10 Mbps or 100 Mbps
Standards Conformance
IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX
Communication Rate
10/100 Mbps on RJ-45 ports
Media Supported
10BASE-T
- 100
Ω
Category 3,4,5 twisted-pair
100BASE-TX
- 100
Ω
Category 5 twisted-pair
Number of Ports
16 RJ-45 ports (EH3016G), 24 RJ-45 ports (EH3024G)
All models have 1 port with an MDI daisy-chain switch
Indicator Panel
LEDs for monitoring port speed, port link, port partition,
collision, utilization, and power
Dimensions
440 x 157 x 42 mm (17.3 x 6.18 x 1.65 in)
Weight
2.5 kg (5.5 lb)
Input Power
Full range power input: 100 to 240V (+6% ~ -10%)
50 to 60 Hz (±3Hz)
Power Consumption
30 Watts max. @ 100-240 VAC
Heat Dissipation
102 BTU/hr max. @ 100-240 VAC
Maximum Current
0.6A
RMS
max. @ 110V, 0.6A
RMS
max. @ 240V
Temperature
0°C to 50°C (32 to 122°F) Standard Operating,
-25~70°C (-13~158°F) Storage
Humidity
5% to 95% (Noncondensing)
Certification
CE Mark
Emissions
FCC Class A, VCCI Class A, CISPR Class A
Immunity
IEC 1000-4-2/3/4/6
Safety
CSA/NRTL, TÜV/GS
