Options 348 and 349 provide a master / remote system for the AE Series Displays. The Master / Driver Output Option (348) can be installed in any of the AE Series Displays including: Multi-Function Clock/Timers, Elapsed Timers, Run Time Accumulators, 4-20 MA Process Indicators and RS232 Displays. The output provides synchronous, serial, clock and data pulses at a level of approximately 12 -15 VDC. Option 349 converts any AE Series Display into a Remote Display. AE Series Remote Displays receive the synchronous, serial data from the master and simply display the same data as shown on the master. Up to 40 Remote Displays can be connected to each Master on a single, three conductor data cable up to 1000 feet away.