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Haven't done international but just use a site to site VPN and a central server.the door controllers will use local data if the link is temp lost

At home I have super fast up and download speeds, at work its abismal there is fibre in the street to the residents up the road, but they wont bring it onto our estate because there is a printer with a rented line and a stonemason with a rented line both paying £600ppm upwards (I could share but I dont want them on our network) We currently have a 3 mobile router for internet only but its no good for the 3cx because its not got a fixed IP. I may look at starlink if fibre doesnt happen soon

Bufferbloat would be my first thought. You can see the outbound ping is high underload and the "game" test is 4/5 Could look at QoS stuff on the kit you fitted?

Hi all, I'm currently mapping out a project for a corporate client with their headquarters here and three manufacturing/logistics hubs across different countries in Europe and Asia. They want a unified system where a manager can issue an access credential (RFID or mobile token) at HQ, and have it immediately active across all sites. My concern is the global database synchronization lag and how local controllers handle offline authentication drift if the WAN link drops mid-sync. For those who have deployed large-scale, cross-border access control: Do you rely on a heavy local edge database at each site that syncs periodically, or are you pushing for full cloud-managed controllers that talk directly to a centralized server? How do you pitch the balance between "Instant Sync" and "Local Survivability" to an IT department that is paranoid about bandwidth consumption and data compliance (like GDPR)? Would love to know what kind of network architecture or hardware logic you've seen hold up best for cross-continental deployments.

That’s an interesting take on the power flicking, @al-yeti. I hadn't closely tracked the on/off cycles, but now that you mention it, transient voltage spikes from messy electrical cutovers make total sense for blowing those sensitive port components. It's funny about TP-Link vs D-Link and the cheaper alternatives. I've noticed similar patterns—some of the generic units seem to have beefier component tolerances on the front end, or they just act as a hard fuse and die completely to save the upstream link, whereas others let the spike leak through and ruin the specific switch port. Are you guys adding any simple power conditioners or miniature UPS units at the head-end to smooth out those dirty power flips before it hits the PoE switch, or is that just overkill for smaller multi-site deployments?

The ping is a litttle high, not a gamer so cant comment. Also the upload latency is high, google says it's "buffer bloat" and to check your router Mine, ping is usually around 6ms

This is my home internet over wifi When at home I post shite on the internet whilst watching shite on the internet some netflix but mostly youtube This is my clients home internet over wifi- I did him 3 x ruijie access points & ruijie poe router Moans that call of duty is slow, Internet says , "a minimum of 100 Mbps download and 10 Mbps upload is recommended" I may be able to get the ISP to tinker but I think he's moaning for the sake of moaning

starter toners 1500 page irrc

Inc toners? My HP and Brother ones are still going strong although v little use.

In a break with tradition, Kyocera £254 +vat

Yep, doesn't use DTMF, seems to be PWM @ 5v, open to suggestions though :)

I think you are right, I vaguely remember seeing one in the 90's, I think it used DTMF to talk to the panel I doubt the 8136 is the same protocol

I'm certain someone did a emulated 9100 keypad ?

Yep, this is purely for educational/fun purposes, and it is absolutely my fallback to get a fibreglass pen, clean the via's and then electronically click the keys, however, first I'm wondering if there are any people on this forum who may have worked at this level at or around Scantronic?

Unless you've found someone online that has RE'd the protocol you'll have to continue to work on this. I have heard of people connecting onto a working keypad membrane grid with a SBC and controlling keypresses via software in this way. Ultimately, people in the trade wouldn't be spending time doing this and would be upgrading for something modern and more fit for purpose. Fine to play about as a DIY project but modifying stuff in this way wouldn't conform to the standards we are required to install to.

A bit of a long reach this one, but I'm trying to 'emulate' a keypad for a Scantronic 8136 panel. I've got as far as identifying it using a 150bit protocol of what seems to be long and short pulses on the signal wire done through releasing the signal wire from ground and letting the panel pull it back up to +14v for a period of time 150 times synchronised by a clock. I'm hoping to build on this so that I can control my antique alarm system from my phone! Anyone have any further information on how this works, as my attempts to play back the pulses (I think) I've copied are ignored by the panel, so I'm missing something!

I dunno, I see switches blow ports just because an electrician flicks power on off a few times Put in different model and no problem, I wonder if it's are voltage problem aswell , but mostly they were tplink Dlink seemed to survive and so do many cheap Chinese versions , which ususally die completely when they do

Hi all, Now that we're heading into the stormy summer season, I'm reviewing our standard deployment specs for outdoor edge devices—specifically long-run IP cameras and gate controllers on dedicated metal poles. In the past, we've used standard inline PoE surge protectors, but we still see occasional port blowouts on the switch side after heavy lightning storms nearby, even when the pole itself is properly grounded. I’m curious about your real-world setups: Do you automatically budget for surge suppression at both ends (at the device and before entering the patch panel)? Are there specific brands you've found to actually survive a near-miss, or do you treat them as sacrificial items that you replace annually? Just trying to cut down on warranty truck rolls this summer. Would love to hear what's working for you guys in the field.

Yes, I have ticked the Coliseum Picture Theatre of my list...

We were in Cleethorpes last weekend, I don't mind it for a couple of hours.

TSI is almost as cool as Cleethorpes...

You do realise we all have nothing better to do?.....

You probably posted as a guest? I havnt seen the post to enable it?

Hi everyone! I'm new here! I'm just an ordinary bloke with a little bit of electrical / electronics knowledge. I wanted to ask a couple of questions about replacing the battery inside a Securit 800L+ Control Panel, so I posted to the "DIY Installers" section about a week ago. When I pressed the "Submit Topic" button, however, a message appeared that said something like "Your new topic will be verified before appearing in the forum." (I don't remember the exact wording, but it was something like that.) Is there something else that I am supposed to do in order for my post to appear? Thank you for your help!