Relay on cem+ rack

So, there is a solid internal ETC discussion about this.

Question:

• What does the sticker/label on the bottom of the module say for both modules?
  • Just in case both are "ER15" on the front but actually a little different
  • (recently ran into this with ELV10 modules where the front label was ELV10 but the bottom label was ELV10-S and the module was wired as a -S)
• What does the PCB sticker/label say for both modules? (including Rev & S/N) [old vs new]

So, there is a solid internal ETC discussion about this.

Question:

• What does the sticker/label on the bottom of the module say for both modules?
  • Just in case both are "ER15" on the front but actually a little different
  • (recently ran into this with ELV10 modules where the front label was ELV10 but the bottom label was ELV10-S and the module was wired as a -S)
• What does the PCB sticker/label say for both modules? (including Rev & S/N) [old vs new]

These are definitely different generations of modules 

The internals look very different 

Funny that the racks and CEM+ are the same age as those that don't work 

The newer have much smaller relays and are notably lighter in weight 

I'm not in the venue this evening but will get the rest of the info of the modules tomorrow as soon as I get in 

The P/N and S/N of an example of the older and newer units are in my first post if that helps 

It might be of interest that the racks that doesn't work with the older units did not have any relays installed on the first commissioning, although after advice from they Gus in Leeds I set up the channel as a ER15 and switched from concert 

Thanks so much for looking into this 

Just to add the new ones have the yellow label 

thisis the older module

This is one of the Newer modules 

CEM+ is running software version 3.1.2.9.0.38

This is the same for all racks 

I have spare cem+ units (from our closed venue)

I think these may be on a different software version so can't just swap out 

So, we have no idea why this is happening. If you want to fully run this to ground; someone would likely need to come to your site. Or work though some complicated back and forth and get one of each or your modules in to look at. But I'm not sure that will get us there. 

Thanks so much for looking into this 

It really has me stumped 

It's not the end of the world just a really odd one 

Thanks again