Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Terry Coles
On Wednesday, 21 March 2018 14:48:04 GMT Ralph Corderoy wrote: > You said the Belkin lets the phone (Pi?) get an IP address, but not > transfer data. Was one of T568A or T568B followed when matching pairs > of wires to pins? Well. I didn't actually do the wiring, but the guy who did do the work

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Ralph Corderoy
Hi Terry, > > https://en.wikipedia.org/wiki/Cat_5 might be of interest. > > Yes. We saw that before we even attempted it. You said the Belkin lets the phone (Pi?) get an IP address, but not transfer data. Was one of T568A or T568B followed when matching pairs of wires to pins? You know,

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Ralph Corderoy
Hi Bob, > Pi's will be built to the spec although there was a rumour of some > made without the isolation transformer in the socket. They were... > I'd expect to have seen a safety recall if this had been true. But they never left the factory without being fixed.

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Terry Coles
On Wednesday, 21 March 2018 13:53:13 GMT Bob Dunlop wrote: > The 125V is the minimum inter core DC insulation provided by the cable. > It's there because the cable may be carrying 57V DC PoE power and has > nothing to do with the signalling level which is about +-2V differential. Thanks. I've

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Bob Dunlop
On Wed, Mar 21 at 12:36, Terry Coles wrote: ... > I'm think more about the specifications of the driver/receivers in the two > devices. That spec that you referenced says that the maximum operating > voltage is 125 V, but we're not going to get that from a Raspberry PI! I > haven't managed to

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Terry Coles
On Wednesday, 21 March 2018 12:21:44 GMT t...@ls83.eclipse.co.uk wrote: > it solid copper or copper-clad aluminium). For what it's worth, I have a > long exterior cable run of around 100m with POE with a TP-Link or > Netgear POE switch at the near end, fairly new installation so Cat 6, > but

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Terry Coles
On Wednesday, 21 March 2018 12:17:14 GMT Bob Dunlop wrote: > By the book 1Gbps, 100Mbps, and 10Mbps should all support 100m. Yes; see my response to Ralph. > Dodgy termination, cable or connectors will severely reduce the range. See also my response to Ralph. This cable passes the tests we've

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Terry Coles
On Wednesday, 21 March 2018 12:46:38 GMT Ralph Corderoy wrote: > > > Is it Cat 5 or 5e? > > > > Probably Cat 5e, but I didn't specify it. > > There's normally tiny writing repeated down its length on the stuff I've > seen? This is armoured and I don't recall seeing anything on the outside of

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Ralph Corderoy
Hi Terry, > > Is it Cat 5 or 5e? > > Probably Cat 5e, but I didn't specify it. There's normally tiny writing repeated down its length on the stuff I've seen? Cheers, Ralph. -- Next meeting: Bournemouth, Tuesday, 2018-04-03 20:00 Meets, Mailing list, IRC, LinkedIn, ...

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Terry Coles
On Wednesday, 21 March 2018 11:45:15 GMT Ralph Corderoy wrote: > https://en.wikipedia.org/wiki/Cat_5 might be of interest. Yes. We saw that before we even attempted it. We always knew that the poor old Pi might not be man enough for the job, but hoped we could get away with using a switch to

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread tda
Hi Terry On 21/03/18 11:07, Terry Coles wrote: Hi, We've just re-connected our WMT Webserver with the antenna in its new location at the far end of the site.  The server is currently in the old location so there is about 70 m of armoured Cat 5 cable between the two.  The Question is; do we

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Bob Dunlop
On Wed, Mar 21 at 11:07, Terry Coles wrote: > Hi, > > We've just re-connected our WMT Webserver with the antenna in its new > location at the far end of the site.?? The server is currently in the old > location so there is about 70 m of armoured Cat 5 cable between the two.?? > The Question

Re: [Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Ralph Corderoy
Hi Terry, > The server is currently in the old location so there is about 70 m of > armoured Cat 5 cable between the two. https://en.wikipedia.org/wiki/Cat_5 might be of interest. Is it Cat 5 or 5e? Stranded or solid core? What's the margin of error on the 70 m? :-) What else is lying

[Dorset] Range of a Cat 5 Ethernet Signal

2018-03-21 Thread Terry Coles
Hi, We've just re-connected our WMT Webserver with the antenna in its new location at the far end of the site.  The server is currently in the old location so there is about 70 m of armoured Cat 5 cable between the two.  The Question is; do we need something a bit more powerful at each end to