Brian H

It can be confusing to some users. Yes it is a serial connection but on a RJ45 network cable and connector. Used for serial communications.

I have seen other brand resistors also used. Designed for a two wire switch. With success.

The ISY994i discontinued indicates you can purchase modules until 06/01/2022. So I would second contacting UDI. As the procedure was changed awhile back. I purchased some for my back up ISY994i a few weeks back. https://www.universal-devices.com/byebye994/

Best to use only the three needed wires. As there are other signals on the PLM RJ45 jack that can possible connected to other things and effect the operation. Like the unused TTL level In and out signals. Insulate and don't connect to anything.

The PLM only uses three wires and the pin out is unique. So you have to use the correct three wires in the DB9 to RJ45 serial adapter for the connections.

2413S and 2413U are both the same performance wise. Different interface to the outside world. 2413U has the USB interface inside the PLM. 2412S and 2412U are the older power line only ones and have slower link memory. The new PLM in the FCC Database will probably be later this year if at all.

I too have seen supplies look fine with a meter no load and have almost no output when loaded. One of mine on an ISY controller was that way. Though none of mine had a Blue LED.

You may want to look at this wiki page. https://wiki.universal-devices.com/index.php?title=ISY-994i_Series:Migrating_To_Your_ISY-994i The finder will not work on that model. As even the latest ISY99i firmware is too old for it to find and run it. The 2412S can power the ISY994i. So the use the original PLM may power the ISY994i over the serial line. Not clear if you use the ISY994i and the replacement PLM.

I did not see it on the eisy pages of the UDI sales pages or lilyoyo1's link here. Another point. The 2412UH was the model with a different Subcategory that the proprietary version of HouseLinc checked before allowing it to work. It has a slower clock speed over the 2413S/U and may even have the smaller link database found in the earlier revisions.

We have seen our share of power supply issues and the ISY994i. I had a weak one and the ISY994i was working sort of. I did a power cycle reset and it never came back up. All the LED's just pulsed on and off. If you looked at the output an did not have a load on it. It could still read OK until loaded.

Just got an email from UDI. There is a 20% discount on PLM repairs through the new Insteon site. With a discount code in the information page of Insteon.com

From the official notice on the ISY-994i a few weeks ago. Indicated it was produced for sixteen years. How long would you want a device to be made and supported? I have not seen many manufactures still have no cost customer serve for more than a year or too on a purchased device. I have seen UDI bend over backwards to assist someone.

For the 2412S or 2413S. The PLM serial connector is a network style RJ45 with serial signals on it. As linked to in the previous reply. There was a cable with the needed RJ45 to DB9S inside the boxes shipping material. Material not marked so many missed it or tossed it with the empty box. There are some custom cables construction posts here also.

Since the ISY994i has been officially discontinued and support time is now limited. Not to sure what you may get done. https://www.universal-devices.com/byebye994/ https://wiki.universal-devices.com/index.php?title=Main_Page#ISY_Portal:_Integration_with_Amazon_Echo/Google_Home/IFTTT https://www.universal-devices.com/ https://wiki.universal-devices.com/index.php?title=Main_Page

I have seen a module. You could wire in parallel with the load. That sometimes helped with flicker. Don't have any data easily found right now. I agree some bulbs electronics are just don't play well with Insteon power line signals. While others do.

The UPS power filtering can absorb the power line commands from a PLM. Many also don't have a true sine wave AC output. That many power supplies don't run with. No UPS on a PLM is a very good recommendation. FilterLinc sound like a good way to go. That is how mine is. PLM in the unfiltered outlet on the front. Computer equipment on the filtered outlet.

You may also want to note the firmware version of the modules. Reported in the Administrative Console. As date code and hardware version. Doesn't always indicate a firmware version. As some modules like the 2413S PLM have the same firmware in more than one revision. I have see 9E in more than one and I maybe the same one still being used.

The sales page. Does indicate you need the RJ45 Serial type port to a USB signal. Is plainly called out on the Eisy page. The adapter is not overly costly, but would add some cost to those with the 2413U and 2412U PLM. As it has to have a Serial to USB converter and has to have the custom RJ45 serial port signals on it. That the more commonly network serial cables do not match what Smarthome decided to use.

Just looked at the kit. So you are using the network style cable, RJ45 to DB9 adapter, and the USB adapter in the kit? Unless the kit has been changed. I don't think you need any cables you made. I saw a mention of the improved PLM being Q2 and the 2413S March of 2023

That sounds right. See page #6 2440new.pdf

Thanks for the information on the RJ45 RS232 use. As long as someone doesn't think it is a network connection and try that route. 😀 The Serial RJ45 pin out is not even close to what Smarthome did with their custom signal connections. Like TTL and +12VDC on some of the pins. Using an adapter. Where the user can select what wire goes to what pin. Should work.

Swapping the USB daughter board with the Serial Port daughter should work. As long as the attached interface does not check the PLM ID that is attached. As the 2413U with serial board will identify with the Category and Subcategory ID of a 2413U. The ISY994i does check for a connected PLM and shows its firmware but don't it checks the USB or Serial status. I put a serial board in a 2412U and did a few test software tries. It did seem to work just fine. It did ID as a USB version. A serial board from a 2412S I would be cautious of. As the 2412S had a slower link database memory speed and early ones where 417 links. Houselinc checks for the module it is interfacing with. So it may or may not be 100%. As I remember they came out with an updated file to include the newer versions of the 2413S and 2413U with a later Subcategory number.

Insteon devices only support X10 power line commands and do not repeat X10 commands on the power line or by RF signals. Dual band Insteon modules also do not receive the X10 RF 310 MHz only the Insteon 915 MHz. Some of the later Insteon modules dropped the Primary X10 address feature and did not support X10 at all.

What are you trying to do? Does the Eisy have a serial RJ45 network style connector. That Smathomes unique serial format connector used and not the standard DB9S for serial communications? I would seriously doubt it. So best thoughts no. The three wire connections from the RJ45 unique serial connector to the DB9S. Is documented in a few places and in this thread.

The text you posted. Looks like it still was using I2 communications.