The 3Com Ethernet power sources (EPS) let companies with NBX telephones or 3Com wireless access points connect and power these devices from a single location using their LAN... more
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24 x network - Ethernet 10Base-T/100Base-TX - RJ-45
1 x management - RS-232 - 9 pin D-Sub (DB-9)
Manufacturer's product description
The 3Com Ethernet power sources (EPS) let companies with NBX telephones or 3Com wireless access points connect and power these devices from a single location using their LAN cabling. With the EPS located in a secure wiring closet or other central location, you can easily access and manage the distribution of power to devices throughout your organization. EPS eliminates the need for a local power outlet and power cable for each device. One wire provides both 10/100BaseT connectivity and power, freeing power outlets for other electronic equipment.
Miscellaneous
Rack Mounting Kit: Included
Compliant Standards: FCC Class B certified, FCC Class A certified, CSA, VCCI Class B ITE, EN 60950, EN 61000-3-2, EN50082, EN55022, ICES-003, IEC950, UL 1950, EN 61000-3-3, EN55024
Advantages: Ebay bargain ! Disadvantages: Only 10 mbps, Only 4 ports
...Bought this on Ebay for a bargain £1 to expand my network. I've since replaced it with another 3Com hub (check out my other reviews), but thought I'd still let you know a little about it.
It's an entry-level, 4 port hub, but only 10BASE-T, rather than the faster 100BASE-TX - that's why I upgraded, so you can connect 4 users together.
There's one (manually switched) MDI-MDIX port to provide simple "in" connection from a server, switch, or hub, and three other female RJ-45 ports to send the network signal out to 3 other items.
The hub has an external power supply and a "CoolCurve" self-cooling design eliminating the need for a noisy fan. Its dimensions (height: 3.6cm, width: 23.1cm, depth: 13.6cm) allow it to fit nicely with other 3Com OfficeConnect units - special stacking clips are available.
It's an "unmanaged" hub, so there...
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Advantages: Simple, dual speed, small size Disadvantages: Only 5 ports (?)
...Not much to say about this really. I bought this for a pound (!) on Ebay to connect to my router giving me 4 more ethernet ports to connect stuff to my network. That's all it does, gives you more connection; there's no firewall, DCHP, nothing, but then that's all in my router.
Its 5 autosensing ports (Ethernet 10Base-T/100Base-TX - RJ-45)automatically detect the speed of the attached device to maximize network performance - with a data transfer rate of up to 100 Mbps.
It really was a "plug-and-play" installation with no configuration needed, it connected straight into my network - I didn't even ned to read the manual ! The auto-sensing feature means that you can plug the "in" cable into any socket - another 3Com switch I have has a specific "in" port.
It's nice and small (Weight 0.6 kg, Height 4.2 cm, depth 13.5 cm, Width 22.8 cm...
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Advantages: So Easy installation, Simple and effective design Disadvantages: None of which I know
...SPECIFICATIONS
Total ports: 5 autosensing 10/100 Ethernet
Media interfaces: 10/100BASE-TX, RJ-45
Ethernet switching features: Store-and-forward; full-/half-duplex autonegotiation
Height: 2.4 cm (1 in)
Width: 22 cm (8.7 in)
Depth: 13.5 cm (5.3 in)
DETAILED DESCRIPTION
1. Front Panel
The switch contains 6 LEDs in the front
1.a. Power LED
Indicates that the switch is powered or not
1.b. Five Port Status LEDs
If the LED is on, the link between the port and the device is ok. This LED has different functionality as it is transform from green or yellow from stable or flashy to indicate certain connection type and activity.
If the led is green, then the connection is 100Mbps, if yellow then it is 10Mbps. If it is flash green or yellow then there is data being transmitted. And if the led is off, then there is no device connected to this port.
2...
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07.04.2006
24.03.2006
21.11.2004
