Alfa Dual Speed Hub ADH24SB User Manual
5
5
Installation
1. Operating Environment
These Dual Speed Hubs must be installed and operated within the limits
of specified operating temperature and humidity (see previous section
under Specifications). Do not place objects on top of the unit. Do not
obstruct any vents at the sides of the unit. Do not position the hub near
any heating source such as heater, radiator, or direct exposure to sun.
Prevent entering of water and moisture into the unit. If necessary, use
dehumidifier to reduce humidity.
of specified operating temperature and humidity (see previous section
under Specifications). Do not place objects on top of the unit. Do not
obstruct any vents at the sides of the unit. Do not position the hub near
any heating source such as heater, radiator, or direct exposure to sun.
Prevent entering of water and moisture into the unit. If necessary, use
dehumidifier to reduce humidity.
2. Connecting to network devices
Connect one end of the network cable to any of the RJ45 ports on the
front panel, and connect the other end of the network cable to the RJ45
port of the network device. The network cables must comply with
EIA/TIA 568 specifications and Category 5 standard for 100Mbps data
rate or minimum Category 3 for 10Mbps data rate. Maximum length
between the hub and any network devices is 100 meters (300ft). Once
the network cable is connected on both ends and the attached network
devices are powered on, the green Link Status LED should be lit. If the
connected network devices are running at 100Mbps, the green Speed
LED (100M) should also be lit.
front panel, and connect the other end of the network cable to the RJ45
port of the network device. The network cables must comply with
EIA/TIA 568 specifications and Category 5 standard for 100Mbps data
rate or minimum Category 3 for 10Mbps data rate. Maximum length
between the hub and any network devices is 100 meters (300ft). Once
the network cable is connected on both ends and the attached network
devices are powered on, the green Link Status LED should be lit. If the
connected network devices are running at 100Mbps, the green Speed
LED (100M) should also be lit.
3. Uplink to Another Hub
Use the uplink port (the last port) to connect to another hub as illustrated
in Figure 5-2. Connecting cable must comply with EIA/TIA 568
specifications and Category 5 (100Mbps) standards to connect the hubs.
The Uplink port of the Dual-Speed hub supports Auto-Sensing function
which will automatically sense the speed of the connected hub and
operates at either 100Mbps or 10Mbps speed. If the connected hub is
another Dual-Speed hub or 100Base-TX hub, the transmission speed
between the two hubs will be set at 100Mbps and the green Speed (100M)
LED should be lit. The maximum length of the cable should not exceed 5
meters (15ft) when connecting two hubs running at 100Mbps and 100
meters (300ft) when connecting two hubs running at 10Mbps.
in Figure 5-2. Connecting cable must comply with EIA/TIA 568
specifications and Category 5 (100Mbps) standards to connect the hubs.
The Uplink port of the Dual-Speed hub supports Auto-Sensing function
which will automatically sense the speed of the connected hub and
operates at either 100Mbps or 10Mbps speed. If the connected hub is
another Dual-Speed hub or 100Base-TX hub, the transmission speed
between the two hubs will be set at 100Mbps and the green Speed (100M)
LED should be lit. The maximum length of the cable should not exceed 5
meters (15ft) when connecting two hubs running at 100Mbps and 100
meters (300ft) when connecting two hubs running at 10Mbps.
Figure 5-1 Connect the hub and network device
Dual Speed Hub
10/100 FAST ETHERNET CARD
FCC ID :
RTL8139
100m
Category 5
EIA/TIA 568
UTP Cable
Network
Adapter
Adapter
10/100 FAST ETHERNET CARD
FCC ID :
RTL8139
10/100 FAST ETHERNET CARD
FCC ID :
RTL8139
100m
Category 5
EIA/TIA 568
UTP Cable
Network
Adapter
Adapter
LNK
ACT
ACT
100M
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LNK
ACT
ACT
100M
10M
COL
COL
50+
30
10
5
1
UTIL
%
50+
30
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1
UTIL
%
100M
COL
COL
Power
Switch
24-Port
10/100Mbps
Dual Speed
Stackable Ethernet Hub
Stackable Ethernet Hub
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Uplink
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