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Eir F2000 modem
#1
Hi, I would like to ask a question about the Eir F2000 modem. I received a "new" refurbished F2000 today, and when I connected the power from the power supply nothing happened. 

It seems that I need to have the phone cable [2 pair copper] connected before the modem will power up. Can anyone explain why this is the case.

I have used a lot of earlier Eircom, Vodafone, and my modems of choice Netgear, modems and I have never seen this before. Once you plug in the power supply to the modem it would normally power up. But not with this Eir F2000 thing. I spent an hour checking the mains connections for 240vac, the power supply for 12vdc, and doing other stuff and there was no way the modem was coming alive !

I rang the "Technical" support to see what they had to say, and the guy asked had I tried different mains sockets, I had, and was the power supply providing 12vdc, it is, and if nothing was lighting up then the modem needs replacing.

However, when I rang the "Fulfillment Dept.", after a long discussion about the contract service being active the guy said something about having another cable needing to be connected before the modem would work. I asked what cable he was talking about because this was a new one on me, but he wouldn't tell me.

Eventually, I plugged the phone cable, from my existing, working Vodafone modem, into the F2000 and then power light came on.

So I am interested to find out what is happening here. I have never before had a modem that needed a phone line to be plugged in before it would power up. I wanted to put in a new SSID and a new list of MAC addresses before I put the modem online but I couldn't power it up.

I suppose that now I know it needs the phone line to be connected then it's OK, but it is just the fact that there is no mention anywhere, absolutely no information regarding this at all anywhere, and if the numpty in Eir hadn't unintentionally mentioned it I would have been stumped.

Perhaps someone may have further information about this, and could let me know the story. By the way, I am using ADSL as fibre is still available in Carrickhill, Portmarnock. I did notice, when looking up information about the modem that it seems to state that it is a modem for a fibre network.

Parkman.
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#2
I haven't experienced that before with the F2000. As Eir was supplying the F2000 for FTTH customers where a phone line is not required, it's very unlikely that they would have configured the F2000 only power up upon detecting the presence of a phone line.

This could be a fault or loose internal connection with the internal circuitry of the F2000, where pushing in the phone line jack is enough to jiggle it to life. Another possibility is a bad ground (negative) connection inside the router or power supply, where connecting a phone line to something else grounded completes the circuit. I suggest try another 12V power supply just to rule it out.
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#3
(04/06/2021, 07:14 PM)Seán Wrote: I haven't experienced that before with the F2000.  As Eir was supplying the F2000 for FTTH customers where a phone line is not required, it's very unlikely that they would have configured the F2000 only power up upon detecting the presence of a phone line.

This could be a fault or loose internal connection with the internal circuitry of the F2000, where pushing in the phone line jack is enough to jiggle it to life.  Another possibility is a bad ground (negative) connection inside the router or power supply, where connecting a phone line to something else grounded completes the circuit.  I suggest try another 12V power supply just to rule it out.

Hi Sean, I actually powered up the modem, and then plugged in the phone line, and it was only when the phone line was plugged in that the modem came alive.

Just plugging in the power supply doesn't work on the F2000 modem that I have received, it definitely needs the phone line [2 pair copper] to be connected. I find it quite strange that the modem will only power up when there is both 12.2vdc, and 50vdc, supplied. 12v to the power input plug, and 50v to the RJ11 plug.

Unfortunately, I can't find another 12v power supply to try your suggestion. However, I have a box of odd routers and stuff in the attic, so there may be something in there that will suit.

This is a new one on me !!! I guess I will have to wait until the bloke from Eir calls on Tuesday, if he ever does.

Parkman.
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