Brian H

On mine. The On/Off module had some big design faults. They used a flat head screw in a counter sunk hole. To mount the cover. The plastic used also seems to be too brittle. The screws in mine caused the back to crack. The assembly also looked too high for the cover and I could see the back slightly bowing out when the case was closed. I too have some unused ones. With totally cracked backs and screw mounting posts. At least the 2457D2 Lamp Linc used pan head screws and it looked like they didn't over stress the assembly.

The ISY994i checks for a PLM at boot up. Not sure if the PLM dies as the system is used. Would be detected.

If you have not done it yet. The two LED's on the Network Jack on the ISY994i. May give you some information.

Glad you got it working again. Your reported finding may assist someone else with the same issue.

Sometimes to me. The previous owners didn't make the most sensible choices. One paddle design would have made things easier.

There where no extra LED's in the 2476S and I believe the 2477S also. Just the bar graph positions filled with light pipes that didn't light. I saw a Smarthome bulletin on the new face plate design and it indicated those that wanted to have the new ones match their originals. With all the LED positions. You could change the assembly to the older ones. You could purchase as an accessory assembly. As they both fit just the new ones eliminated the unused LED positions.

I did see the 2413S and 2413U in the lists. Kind of sad the newer improved 2243-222 USB and 2242-223 Serial PLM where not on the list. Unless it is one of the ones for future release. With no dates known yet.

The Synchrolink is a power line only module. Can't say about the 2456SE it also maybe a power line only module. Make sure the metal sensing unit is soldered in well in the Synchrolink. Power line noise or signal absorbing electronic devices. Coupling between the power phases if on opposite phases. Could also be a factor. Especially if a different location works.

The closest Insteon modules. Would be the alert module and siren module. The siren module has a chime function also. Of course both are no longer in production and the alert was a real short time production device. You can still get the X10 chime module if you don't find something else.

Good idea. Though in my case it probably would not show much. I came from X10 use and have a JV Digital XTB-IIR. Coupler Repeater in use. It blasts over a 20 volt signal back on both phases of the house power. My lowest X10 signal is about 1.2V on an XTBM meter. It also knows enough to NOT see the end of an Insteon command and try and duplicate it as an false X10 command. I still have an X10 Palm Pad in use the control some of my Insteon modules that can have an X10 address added to them.

Your second question. The 2868-222 Siren Module It is a very Loud Insteon triggered siren. I have one in use. I left the sound reducing plastic film over the siren output port. As that is loud enough for me. It also has a chime function but I have no experience with the chime function. It may have been one of the early removed modules. There was a 2867-222 alert module also. It was an very short production run before the later siren module was released. It had a chime like output sound. Broyd made a very important point. The X10 chime module has a power line derived power supply. Either the + or - side of the power supply is directly connected to the HOT line input and logic supply.

Trying it in the same outlet as the PLM. Is a good idea. It would show if you have a power line signal to the Chime Module problem. If it chimes at the PLM location. You may have a new signal sucker or power line issue. One easy thing to do. Rotate both the House and Unit Code wheels around a few times. They sometimes get dirty and make a bad connection. So the address set on the wheels. Is not the addresses the module is actually using. Rotating may clean up a poor connection. The chiming at power up is normal but does not see if it actually will respond to an X10 On command.

The failing power supply. May have caused the controller to write garbage to the SD card. Power supply issues are a failure we see here. I had a few over the years myself. Glad you are back in business.

LED flashing in the bar graph display. Sounds like the power supply is full of ripple. I too would suspect the filter capacitors. Especially in the older model power line only models.

Glad you found the issue and are now working.

You need a 2413S serial port PLM. For use with an ISY994i. Connected to the serial connector on the PLM. It looks like a Network RJ45 cable but it is serial signals. Uses a network style cables between the PLM and the ISY994i serial connector Port A connector.

From the UDI wiki: https://wiki.universal-devices.com/index.php?title=Main_Page#Front_Panel_LEDs/Lights

Looks like the Limited Stock report was correct. Thanks for sharing. At least we know their is a future for their products. We can hope the PLM will be available in the near future. Maybe even the newer one in the FCC Database.

Smarthome was very consistent with using the same cable. They where also used in the serial port connections on their X10 modules. Though some of the other pins in the RJ45 style connector where varied signals.

Yes it did have the RJ45 to DB9 serial cable in the box. Only three wires used. Hidden in the shipping cradle and not well pointed out.

Good information. The wide input range may definitely show less flicker.

Electrical feed to the home probably has issues. Electrician or power company checking maybe needed. If you don't have a meter or experience in properly and safely checking the readings yourself. If you have any plug in lights. Do they also flicker when directly connected to the outlet and not through the module? Are any dim and others extra bright? Appliances not on Insteon acting strange?

You should check across the super caps connections. To see the voltage applied when running to keep it charged. Batteries normally don't like a voltage applied to them unless it is a chargeable type and the charging is regulated to not over charge it.

An FCC Type Acceptance number on the module. Would also indicate it was Dual Band with an Insteon RF Transmitter circuit in it.

I had a email from one of my friends that is a Moderator on the Insteon Forums. He said the available openings where all gone. When he tried to join. Ask me if I had joined, I had not. But if I had any data I would send it to him