On 21/01/18 13:51, Huge wrote:
I've just bought an HP Procurve Switch 1700-8 (J9079A) switch online (it's an 8 port network switch) without a power supply, under the mistaken impression (from the pix on ebay) that it uses a standard co-axial "wall-wart" power plug.
It doesn't.
None of the plugs I have (and I have a large box of wall warts I've accumulated over the years) will fit, since the centre pin of the socket is too large. I've tried drilling out the likeliest one, but the centre conductor just spins round, so the drill won't "bite". Also, it looks like the centre pin in the socket has a third connector inside it, so I'm not sure a universal wall-wart will work, even if I can get the plug to go in.
Anyone know where I can get a power supply for one of these? The vendor doesn't have one, and I don't want to send the switch back until I've exhausted all avenues, since it's my fault.
I don't suppose this will help but I suspect that it requires a specialised PSU like my laptop does. My laptop has the extra pin in the middle, & I suspect it's a data line to tell the laptop the capabilities of the PSU. There must be some "magic" like that as my laptop knows things about the PSU, like its rating etc so they must be communicating somehow.
I'd suggest finding/downloading a manual and looking for the PSU part number and then hunting one down.
Not really very helpful I'm afraid.
Good luck Steve