The Aparian Time Sync module is an out-of-rack PTP Grand Master Clock. Giving it the ability to provide accurate time to any PTP or NTP client. The out of rack feature enables the module to be mounted close to the antenna, eliminating the need for expensive low loss coaxial cable.  See Time Sync Module.  The Time Sync Module can also be added to the IO tree in Rockwell's Logix Controllers or used to synchronize Modbus devices.