Quick Installation Guide
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5
CheetaHub Classic-2040
If a computer is attached to the hub, verify that its adapter card is functioning
properly by trying it in another computer that has been successfully connected to
the network.
Applications
This hub provides up 8 RJ-45 ports for standard twisted-pair connections and 1
BNC port for connecting to thin Ethernet. The hub can also be easily cascaded to
another hub or switch using the daisy-chain port.
Stand Alone
- This hub can be used in a simple stand-alone configuration. In
compliance with Ethernet standards, the maximum cable distance between the hub
and workstation is 100 meters.
Using the Daisy-Chain Port
- This hub provides an (MDI) daisy-chain port that you
can easily use to connect to another hub or switch.
Using the BNC Port
- This hub can also be stacked with other hubs using the BNC
port. Through this port, hubs can be connected via thin coaxial cable.
Guidelines for Multiple Hub Configuration
- In a multiple hub configuration, the
maximum limit between 2 workstations is 5 cable segments and 4 hubs. However,
to control the number of hubs in a path, we recommend using one hub to connect to
several other hubs. Also remember to make sure there is only one path between
any 2 stations on the network.
Product Specifications
Access Method
CSMA/CD, 10 Mbps
Standards Conformance
IEEE 802.3 10BASE-T, 10BASE2
Communication Rate
10 Mbps
Media Supported
10BASE-T
- 100
Ω
Category 3,4,5 twisted-pair,
10BASE2
- thin Ethernet coaxial cable
Number of Ports
8 10BASE-T ports and 1 BNC port
Indicator Panel
LEDs for utilization, collision, link/traffic
Dimensions
200 x 110 x 26.8 mm (7.87 x 4.33 x 1.06 in)
Weight
0.556 kg (1.22 lb)
Input Power
Power adapter 7.5V ~ 12V AC, 50 to 60 Hz
Power Consumption
8VA at 100/120/220-230/240 V
Heat Dissapation
27.3 BTU/hr
Temperature
0°C to 40°C (32 to 104°F) Standard Operating
Humidity
5% to 95% (Noncondensing)
Certification
CE Mark
Emissions
FCC Class A, VCCI Class A, CISPR 22 Class A
Immunity
IEC 1000-4-2/3/4/6
Safety
UL, CSA, TÜV/GS
Troubleshooting
Diagnosing Hub Indicators
The hub can be easily monitored through panel indicators to assist the network
manager in identifying problems. This section describes common problems you
may encounter and possible solutions.
Symptom: Link indicator does not light up (green) after making a connection.
Cause:
Network interface (e.g., a network adapter card on the attached device),
network cable, or hub port is defective.
Solution: Verify that the hub and attached device are powered on. Be sure the cable is
plugged into both the hub and corresponding device. Verify that the proper
cable type is used and its length does not exceed specified limits (100m or
328ft). Check the adapter on the attached device and cable connections for
possible defects. Replace the defective adapter or cable if necessary.
Symptom: Power indicator does not light up (green) after power on.
Cause:
Defective power outlet, power cord, or power adapter.
Solution: Check the power outlet by plugging in another device that is functioning
properly. Check the power cord with another device. If these measures fail
to resolve the problem, replace the unit's power adapter.
Power and Cooling Problems
If the Power indicator does not turn on when the power cord is plugged in, you may
have a problem with the power outlet, power cord, or power adapter as explained in
the previous section. However, if the unit powers off after running for a while,
check for loose power connections, power losses or surges at the power outlet. If
you still cannot isolate the problem, then the power adapter may be defective. In
this case, contact your Accton distributor for assistance.
Installation
Verify that all system components have been properly installed. If one or more
components appear to be malfunctioning (e.g., the power adapter or network
cabling), test them in an alternate environment where you are sure that all the other
components are functioning properly.
