Elevator Forum

That doesn’t sound Otis-like at all. It almost sounds like a contract number or city registration number of some kind.Can you post any close-up photos...

An Otis 211 is a controller type. What is the door operator type being used?

Back to the OP's original post, my first question is to ask what the ACTUAL error message is. Is it really "EPROM Fail"? If you can give the exact det...

The HPLIM from the mid-to-late 1990s had (IIRC) an Intel 386EX processor in it. That was a lot of computing horsepower in a door operator - actually a...

The RSL relies on a specific differential voltage being present between the L1 and L2 signal lines in order to detect clock pulses and data.It also re...

How does that work affect the fire rating of the doors?

What is Galcom? Is it something to do with GAL’s controllers?

Check the communication to the DCSS

Suggest you contact Tech Support, i.e. [email protected] and they can help you out.

Follow-up thought - if someone were to develop a door operator that could speak the Otis serial/multi-drop (and maybe even CAN) door protocols, is thi...

Ontario’s Authority Having Jurisdiction (AHJ) is the Technical Standards and Safety Authority (TSSA).When compared with other province/state/city-base...

Thank you @MX4 !!!

I do not know what current OEM maintenance contracts say, but I wonder whether there is some question about software licensing, upgrades during the co...