Program simplex time clock model 1403 9110 - Acu-Rite Audio Players & Recorders

SOURCE: how to set the time

For independent operation, the clock is connected to a reliable source of 120 VAC 60HZ (or 230 VAC 50HZ), and time is maintained with a real time clock chip. Switches located on the front of the clock allow for easy and accurate time setting. For system clock applications, synchronization can be accomplished by connection to Simplex BCD digital data for instantaneous time updates. Clocks can also be connected to power line carrier/synchronous timing inputs that provide hourly and 12 hour corrections. Impulse correction from the 6400 Series Master Clock is ideally suited for Time and Attendance System expansions. A capacitor in each clock maintains timekeeping for approximately 12 hours in the event of power failure in the facility. The Celestra 2000 can be corrected with six different clock codes to suit any specific retrofit or new synchronized time system.