11
OPERATION
Channel Change:
Upon receiving a function tone F1-F2 the TTC will give an open collector output to ground to
cause the base station radio to change to the desired radio channel. An optional relay for F1/F2 select is
available.
Transmit:
Upon receiving the low-level guard tone the TTC will PTT the radio (CON6-9) by giving an open
collector output to ground, causing the base station radio to key. The voice will be transmitted to the radio via
CON6-5. An optional relay for PTT is available.
Monitor:
Upon receiving the 2050 Hz Monitor tone from the tone remote controller, the TTC will give a
momentary or latched open collector output to ground via CON6-4 to the base station radio. An optional relay for
Monitor is available.
Receive:
Upon receiving audio/signaling from the base station radio the TTC will pass the audio/signaling to the
line output to the tone remote controller.
