Using insteon hub as PLM (yes it works)

[Codra]

Hey everyone.

My PLM died recently but I had an insteon hub lying around and so I thought "a hub probably just has a plm inside".  I also conveniently had an extra PCB lying around that had space for an rj45 port and rs232 chip.

Long story short, it does and it works with a few modifications to connect it to ISY.

Just in case you were wondering.

 

[Brian H]

Is the HUB the older 2242-222 or the later 2245-222? From the photo it looks more like the 2245-222 HUB.

I have seen the 2242-222 mentioned here. Where someone had the network assembly removed and wired into a Serial Port PLM daughter board.

If it is the newer 2245-222 can you give more details on where the serial interface was connected?

[Codra]

2245.  It is easy to figure out where to connect the serial just by looking at the 18f25j10 datasheet for the tx/rx pins.  I'm not sure I want to do a how-to because it does have a single pcb with line voltages on it.  But all I did was connect tx,rx,3.3v,gnd and held the pic32 in reset.

[Brian H]

Maybe a wise move to not do a How-To.

I suspect since the 2245 has the same LNK354GN switching power supply chip. It probably has the same issues with the capacitors as the 2413S/U PLM and Revision 2 Access Points. Not being specified as OK in switching supplies.

[hart2hart]

2245.  It is easy to figure out where to connect the serial just by looking at the 18f25j10 datasheet for the tx/rx pins.  I'm not sure I want to do a how-to because it does have a single pcb with line voltages on it.  But all I did was connect tx,rx,3.3v,gnd and held the pic32 in reset.

Where did you get PCB? Is it a prototype board? Can’t see any detail from photo.

Thanks

[Codra]

It was a custom pcb from an old project but a max3232 chip breakout board would be good enough.