(07-09-2022, 02:51 PM)tomh009 Wrote:(07-08-2022, 02:21 PM)ijmorlan Wrote: I’m especially disappointed about the LRT platform signs. I know for a fact that they have data wires running all along the system — couldn’t the signs be run from that? Or is the problem that those signs depend on outsourced systems which are on the other end of a Rogers link?
I expect that those signs communicate over the mobile network. And if it's Rogers, it would have been down yesterday.
No. All the stations have fibre link to somewhere The cabinets have redundant routers and switches in them with at least two fibre ports from what I have seen when they have been opened up, but they were rather messy from a cable-management perspective.
From what I am told, all the announcements are "played" from the OMSF and work like a VoIP phone system where you have a shop floor speaker that has an extension and you dial that and then speak the announcement into your phone handset, but done with prerecorded sounds.
The signs are controlled from the OMSF, too, and I would *hope* that the station network and OMSF are single, self-contained network independent of the Region's network as it needs to keep signalling data flowing and that the signs and speakers would work along that same network, and I would expect real-time info to keep getting displayed for the trams on the ION station marquee displays.
I have no knowledge abut the actual network topology, though, I can only make educated guesses from experience and what I have seen in those cabinets while open.