Setting Up a Loaner CEM Classic Processor
First-generation CEM processors (also referred to as CEM Classic) require a configuration to function. If you have a multi-rack system, this configuration must match the one stored on all other racks in the system.
Ensure that power to the rack is disconnected before removing any components. Failure to do so can result in damage to your equipment or personal injury.
Check Functionality
There's a good chance that ETC technical services is ahead of the game with a CEM Classic! If we had a configuration on file or were able to get the configuration info, ETC may have loaded it to your loaner already. Plug in the processor (with the power off) before trying any of the steps below. If your system works as expected, no further action is required.
Load from Another Rack
This is the best option if you have a multi-rack system. If you're not sure whether you do or not, simply put in the loaner processor - if it's a multi-rack system, you'll see an error on every processor that says "config mismatch". You may need to generate defaults to get this error to display. Follow the directions in the "fix" section of CEM "Config Mismatch" Error.
Generate Defaults
If you have a system with only one kind of module, you can simply generate defaults. Follow the directions in Generate Defaults Sensor CEM Classic-All Versions. This will also work if you have a mix of D20s and R20s - just select D20 as the module type and then put all R20 circuits in switched mode.
Other Situations
If you have a situation not described above, or you need help following these steps, please contact ETC Technical Services.