You can get started using most existing equipment with an Alarm.com system enhancement module. We do not currently stock the system enhancement module, but it is available from other online vendors. A guide to installation of the ADC SEM-300 is below:
Pulse cameras and the communication gateway are incompatible.
Cameras would need to be replaced by Alarm.com compatible models.
If you have standard Honeywell 6160 keypads they would be fine, however issues have been noted with the prox reader version of the 6160VPADT keypads. Make sure to check the exact model number on the keypad board in case any troubleshooting is needed later.
Another option would be replacing with a 345Mhz compatible panel such as the 345Mhz version of the IQ Panel 4 here. Hardwired zones could be reused with a compatible wired to wireless translator, like the 2GIG TAKE-345 or the IQ PowerG Hardwire.