Remote Transmitter Controller (RTC Sample Clauses

Remote Transmitter Controller (RTC. Located at each transmitter, the Remote Transmitter Controller shall be a microprocessor-based device connected to the Load Management System (LMS) by (minimum 1200-baud) modem or high speed ISDN line. The Remote Transmitter Controller receives messages from the Traffic Interface Controller, stores the messages until the proper time to transmit and then keys the transmitter and modulates the RF carrier with digitally encoded audio signals. The RTC shall be capable of receiving and responding to a contact closure for listen-before-talk to make sure the channel is free before transmitting. The RTC shall contain watchdog circuitry to eliminate lockups caused by transients and power surges. The RTC shall be able to operate the following transmission modes: Slot Mode, Variable Length Time Slot Mode, and Contiguous Mode which will allow for standard “DC” and “Tone” keying, Dual AFSK/FSK and Multi-port keying. Each RTC shall be capable of controlling up to six transmitters.