-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Richard Naylor wrote: | OK MAN CPEs are tricky. A cheap UPS is useless. The line interactive | type do let thru spikes and surges and if your CPE device has a cheap | switching PSU it will often lock up, die, or do nasty things. So to get | a decent UPS (ie rectifier followed by inverter) you need to spend over | $1k. | And given that Vector were using, at the time, Cisco 29xxG's (I think. Pretty sure they were just dumb L2 switches) for CPE, a $1k UPS would almost double the equipment cost per install. That's not inconsiderable. | Then you have batteries and maintenance. A typical power company (I used Which was really my point. Keeping a lot (and it'll number in the hundreds for Vector) of UPS's up and running isn't a trivial ask. The cost would be phenomenal, and every time batteries need to be changed it's an outage for the CPE that's on the end of it. *SNIP* | If you want to help your MAN supplier deliver a better performance and | you run a nice UPS, then offer to give them some of your 230V off your | UPS. Then you know that they have power at your end. And if you have a | diesel as well....... | | Its a nice cheap solution, and you know the performance of their backup. | Yeah, I think that was kind of what Vector were hoping for. But a lot of their terminating switches are buried in basement rooms to which only the building manager has a key. I know that we had quite a few instances of banging heads on walls trying to get access to put our kit in with Vector's, because the keys to the appropriate room were hard to locate. - -- Matthew Poole "Don't use force. Get a bigger hammer." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIaWaWTdEtTmUCdpwRAvxSAKDIVU4tPqlHaZxpDSbZkk5s6XfwXgCeP99z rgL579ASX+9AcBjhAlgC56g= =sQy1 -----END PGP SIGNATURE-----