PEGAsys ARIES NETLink Control Unit Retrofit Kit enables the field upgrade of legacy PEGAsys panels while retaining the original enclosure and devices in their mounted condition. The kit consists of ARIES NETLink electronics, power supply and a door for the installed PEGSsys enclosure. The retrofit door is sized for the PEGAsys enclosure while its window is alligned with the ARIES NetLink display and user-interface.