Q, Can a TC1 operate over private wire?

A, The TC1 can operate over any communications path which is presented at either end as 2 pairs, TX pair, and RX pair. The input and output of a TC1 is 600Ώ and operates nominally at -10dBm (peak speech). The keytone is presented to line at the control end at -18dB relative to peak speech, or approximately -28dBm.

Q, Can I interface a TC1 to any base station?

A, The TC1 has 600Ώ audio ports plus an open collector for PTT. The radio should present a PTT which is a pull down to activate. The audio to microphone can be adjusted by using the internal  pots, as can be the audio level to line received by the TC1, however the radio set audio output should be adjusted to not more than 0dBm to avoid distortion.

Q, What facilities can I control using a TC1?

A, The TC1 receives FSK messages from the control end. These messages can place the system into talk through mode, and change channel. On site alarms can be connected to the eight bit port and will be sent to control where an alpha tag (DRC1) will indicate the alarm condition and site name.

Q, Will the TC1 fit inside a base station?

A version of the TC1 has been designed to fit inside the new Icom FR3000 base station. Standard TC1 units fit externally to the base station and are available in a wall mount box and 19 inch 1U format.

Q. I need a new base station radio set but use a Motorola control unit. Can I use the TC1 to translate Motorola signaling to another base station.

A. Yes, in part. The TC1 will receive and decode either Motorola or Simoco signaling (switch selected). When the TC1 receives the correct tone signaling it converts the functionality to open collector PTT plus audio paths, plus supervisory in the form of latched open collector drivers. This means you can put any make of base station into operation where the control system is Simoco or Motorola compatible.

Q. can I use the TC1 is systems which employ best signal voting?

A. yes, the TC1 has a plug in card for encoding the signal level based upon the RSSI from the receiver. Please contact sales about this facility before ordering a TC1.

Q. Can the engineer on site communicate with control?

A. Yes, the TC1 has a connector for an engineers handset. The direction of speech is controlled with a toggle switch. The engineer can speak with control, listen to line comms, and operate the base radio set from the engineers handset.

Q. Can the TC1 control more than one base station?

A. No, but if you are thinking of dual bay systems, i.e. systems which have a main and a standby transceiver, then the TC2 will perform the function of control plus changeover from the operating equipment to the standby equipment.