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    #1

    What is this?

    I have to admit I know few about hub/router/lan/nas etc

    I found it some days ago at the uni and I finally managed to open it.

    What's its use and what are the parallel ports for?
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    #2
    Re: What is this?

    It's a network hub. They're less efficient than switches.
    Hubs take traffic and bounce it all over the place in the hopes that the packets eventually get to the right computer.
    Switches take data and route it to the port where the correct PC is hooked up to.

    As for the parallel ports, they may well be old style serial ports, perhaps for legacy applications.

    Comment

      #3
      Re: What is this?

      planet is another taiwan brand that didnt make it into the very know international brands. had some of their nic cards like a decade or more ago and working ok.

      DB-25 connectors are so you can connect compatible similar units together and stack them.
      capacitor lab yachtmati techmati

      Comment

        #4
        Re: What is this?

        Thank you for your answers.

        There are 8 Ethernet ports and one that is named "Uplink".

        What does this mean?

        Comment

          #5
          Re: What is this?

          Not familiar with the Manufacturer of that hub but I used to have a hub similar to that, mine was a Hewlett Packard.
          Hubs connect to multiple hosts just like a wireless router except with cables. Hubs are not used that often anymore, instead businesses and consumers are using switches because they do the job quite well. Although I would personally choose the hub over the router for faster solid connections as well as security. I Currently own a Cisco Catalyst 1900 switch that weighs a ton! The switch uses the same amount of voltage as a standard SMPS between 230-115 if I remember correctly. Had it for quite a long time and is not being used collecting dust which I regret. Have not used it sense I first bought it. Don't have a big enough network. I bought it way back thinking I might need it for a LAN but never got to it. Buying a switch is a good alternative to save you dollar$ on service premiums rather then paying for multiple modems. Just like if you had 20 sinks in your house!
          they call, they telnet, I hangup, I laugh, I get hiccups and digital breakups.

          Comment

            #6
            Re: What is this?

            Originally posted by goodpsusearch View Post
            There are 8 Ethernet ports and one that is named "Uplink".
            In most network designs the 8 port hub that you have connects to a larger and faster ethernet device.

            Uplink is usually used to connected to a bigger switch "up the link".
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            Comment

              #7
              Re: What is this?

              PC froze up again, time to reapply arctic silver.

              Up linking separate service providers is possible on a SonicWall wireless router.

              I'm pretty sure you can up link 2 separate internet service providers on any hub right? I never tried it.
              they call, they telnet, I hangup, I laugh, I get hiccups and digital breakups.

              Comment

                #8
                Re: What is this?

                uplink- what that means is it you can connect it to another hub/switch. modern switches are auto uplink... but it used to be that one had to either use the uplink port or use a cross cable to connect hubs. i forgot which wires but two switch... so again, more old technology.
                sigpic

                (Insert witty quote here)

                Comment

                  #9
                  Re: What is this?

                  I never tried uplinking my hp hub when I had it. The RJ-45 cable looks exactly the same as the crossover cable except the crossed wires. Hard to tell a lot of times. Have gone through a whole box of used ones.
                  they call, they telnet, I hangup, I laugh, I get hiccups and digital breakups.

                  Comment

                    #10
                    Re: What is this?

                    Originally posted by backtrack View Post
                    Up linking separate service providers is possible on a SonicWall wireless router.

                    I'm pretty sure you can up link 2 separate internet service providers on any hub right? I never tried it.
                    A router works at OSI layer 3. Hubs work at layer 1.

                    You cannot link 2 ISPs on a hub. A hub is the same collision domain or same network.

                    Some consumer based wireless routers allow you to link to multiple ISPs. Many don't.
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                    Comment

                      #11
                      Re: What is this?

                      The uplink and port 1 are the same port with the pins re-arranged.
                      Allows use of either a cross-over or straight through cable to connect port-to-port with another hub/switch or a router.

                      Might pull some info from here.
                      https://cdn.badcaps-static.com/pdfs/...2d1073a743.pdf
                      .
                      Mann-Made Global Warming.
                      - We should be more concerned about the Intellectual Climate.
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                      Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                      - Dr Seuss
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                      Comment

                        #12
                        Re: What is this?

                        uplink would be a port to connect any other hub switch. the DB-25 would be for connection to only a compatible unit from the same manufacturer
                        capacitor lab yachtmati techmati

                        Comment

                          #13
                          Re: What is this?

                          Thanks for the replies! Yes, when I connected both the uplink and port 1 with Ethernet cables, they acted like shorted.

                          Now I should find a 5V supply!

                          Comment

                            #14
                            Re: What is this?

                            When I got that hub, it came to me without a power supply and I used a PC psu to test that it's working.

                            Today, I found a variable voltage power supply brick that matches the hub pin.

                            The lowest voltage it gives is 6V. The hub takes 5V. I have tested it and it worked. Volts were measured 5.88V. Can I use that psu with the hub or it is a bad idea?

                            Comment

                              #15
                              Re: What is this?

                              Originally posted by goodpsusearch View Post
                              When I got that hub, it came to me without a power supply and I used a PC psu to test that it's working.

                              Today, I found a variable voltage power supply brick that matches the hub pin.

                              The lowest voltage it gives is 6V. The hub takes 5V. I have tested it and it worked. Volts were measured 5.88V. Can I use that psu with the hub or it is a bad idea?
                              Anyone?

                              Comment

                                #16
                                Re: What is this?

                                It might be ok, but I am not sure about that unless you have some linear/switching converters on board.

                                Comment

                                  #17
                                  Re: What is this?

                                  Its close enough. .88v over isn't going to do much.

                                  Comment

                                    #18
                                    Re: What is this?

                                    Thank you

                                    Comment

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