Hi -
If the KEM is not showing any lights it sounds like a possible power issue. Take a look at the doc below for the system and power requirements. The 8851 + KEM requires POE 802.3at
For expansion module to work , they module must be enabled on the phone level and your POE/Power requirement must meet mentioned power table.
Have you set on the phone device configuration in CM in the expansion module section that there is a KEM module? Can you please share a screenshot of this part of the device configuration?
There is no firmware COP file for only 8851, it would be for all (most) 88xx models. There are a few models that falls outside of this, that’s why I added most. However I’m not sure if it would be enough to run the installation of this COP file to add any new device models to the system as that is done by adding additional information into the database and that is normally done by installation of a device pack. Even though you might need to install a device pack it would not necessarily mean that you’ll need to affect any other models of your phones. If you follow this outline you should be able run an installation of a device pack without affecting any other device models than the 8851.
- Go to device default and note down each firmware set for each device type. Easiest is to mark and copy the entire page into a document, or there is also a command that you can run from the CLI, but right now I can’t for the life of me recall what it is
- Turn off the TFTP service on all the node(s) you have the service running, by setting the service activation to deactivate. This is to stop the service from starting by any server restart that could be needed. If server restart is needed will be stated in the readme and/or release notes for the device pack
- Run the installation of the COP file for the device pack on all your CM nodes, starting with the publisher. It is very important to do so on all nodes
- Go back to device defaults and check the value of the firmware for each device model and set it back to what you have in the collected information in the first step. Leave any model that you would want to upgrade
- Once satisfied with that you have set the firmware information back to as before proceed to the next step
- Go to serviceability and start the TFTP service on any node(s) where you had it activated and running before, you’ll do so by setting the service activation to activated
This should be it for what is needed for running an installation of a device pack without affecting anything that you don’t specifically choose.
To see the You must install a latest device package for your CUCM versions and not the firmware.
