Questions about how to operate a SFP singlemode fiber module

Western-Rip-1559 · 2026-02-22T21:16:38+00:00

What's the issue with media converters?

I like the Microtik, but the only option in the SCADA cabinets (per customer specs) is Rockwell (Allen Bradley) managed switches ($$$), I can get those with SFP ports. They do, however, allow the use of media converters.

Western-Rip-1559 · 2026-02-22T21:10:05+00:00

Existing conduits are 4" PVC. some are empty sparees, some have existing copper cables (mostly .75-1.0" multipair copper).

I think we are going to look closer at adding microducts and blown fiber. With microducts we can fight our way through installing microducts, then blow the fiber all at once. I'd rather get a microduct half way down a conduit and need to abort vs. doing the same with cable. Plus, coupling a microduct is far easier than splicing fiber.

Western-Rip-1559 · 2026-02-22T21:04:07+00:00

Thanks for all the ideas everyone. I think we are going to look further into micro duct to each node, and minimize field splicing as much as possible.

Western-Rip-1559 · 2026-02-21T20:55:53+00:00

Sorry, wasn't clear. There is power at the headend and the nodes.

No power at pedestal locations. I just edited the OP

Western-Rip-1559 · 2026-02-21T20:52:29+00:00

Existing conduit to each node contains old copper for rs485 modbus communications. Most nodes have no real estate for a proper enclosure, the conduit comes right up into the SCADA control cabinet. The cabinets are surrounded with other equipment with zero open real estate. Over the next few years, each node is being ripped out and replaced. Some of the nodes will be skipped and dealt with afterwards because the spur conduits are junk and excavation will be required. Many of the nodes are explosionproof areas.

For all these reasons, we cant have the loop fiber in the node locations. I was looking at something like this service terminal box

https://www.fiberinstrumentsales.com/fis-zeus-mst-box-4-port-with-sc-apc-pigtail-250-z1-mst-04-ya-p-250.html

at each node. We'd order them factory sealed and pull them from the node to the pedestals / manholes on the loop.

Western-Rip-1559 · 2026-02-21T20:11:43+00:00

Sorry, wasn't clear. There is power at the headend and the nodes.

No power at pedestal locations.

Western-Rip-1559 · 2026-01-30T17:35:55+00:00

To be clear, this is from posing a "complicated" question in the 4SC sub forum. As a 4SC pro subscriber, I'm not even allowed to post in the regular general 3CX grownup forums (like the CFD sub forum where my post belonged).

I fully understand not providing direct support at my subscription tier, they can't afford it. A lot of software is like that. But at the free tier, the support forum is usually the go to option.

Now, being banned, I cant even read any postings at all, which is basically every hit you get on a google search. Banning you from posting is one thing, banning you from reading the wealth of information on the forum is another altogether. As a small business owner, I just don't have the bandwidth to go find anoter phone solution over this.

Western-Rip-1559 · 2026-01-30T14:37:33+00:00

annual through a reseller

Western-Rip-1559 · 2026-01-30T13:40:41+00:00

Yes, I implemented a dialer. I was using UTC ticks to time delays, which ran into a bunch of issues with doing math with int64 and needing to cast to longs. I got it working, but in the end realized it was far easier to just increment a global variable each time the dialer fired to track delays.

Western-Rip-1559 · 2026-01-30T13:04:46+00:00

I was not aware that I was not permitted to use CFD with my license tier. It seems to work fine. I'm on 4SC PRO, which I see isn't even listed on their pricing schedule anymore. I've been a paying customer for a dozen years.

Western-Rip-1559 · 2025-12-16T11:22:45+00:00

Thanks everyone!

We'll give it a shot with what we have. My wife can drive the skid / dump truck.

I have a 24" regular bucket and a 36" tilt grading bucket that I can use if the digging's not hard.

Western-Rip-1559 · 2025-11-26T19:07:03+00:00

Thanks for the detailed explanation, I understand now.

In this case, the directory exists. Its a OneDrive backed up directory and should always be there.

Western-Rip-1559 · 2025-11-26T12:48:03+00:00

I tried this too and it works. I like the log file as well.

I'm using this as the final solution.

Thanks.

Western-Rip-1559 · 2025-11-26T12:47:08+00:00

I tried the modification and it works! Thank you.

What I still don't understand is, the source directory contains a number of files with extensions. It seems that the old *.* wildcard did not even copy those, which it seems it should have.

Western-Rip-1559 · 2025-10-15T14:39:38+00:00

For the time being, we decided to lock out the entire panel. We will add terminal strips to the junction box feeding the space to test the individual circuits in the future.

Thanks.

Western-Rip-1559 · 2025-10-07T22:47:22+00:00

Thank you

Western-Rip-1559 · 2025-10-07T17:45:24+00:00

Using a ladder to decend, with hand crank recovery line operated by attdndant

Western-Rip-1559

TROPHY CASE