Raymarine Ray230 manual Dtmf Interface Operation Optional, Intercom Mode, Making a call

Operations 3-23

3.5.19 DTMF Interface Operation (Optional)

A cellular fixed wireless terminal (such as the RAYCOM Fixed Cellular Wireless Terminal) or other radio communications device with a Dual Tone Multi-Frequency (DTMF) interface (such as some Inmarsat Mini-M’s) can be connected to the RAY230 or RAY230E, using an optional interface to the AUX terminal.

One handset is used for DTMF phone operation while the other handset(s) monitor(s) transmissions on the last selected working or weather channel. The other handset(s) can only make a radio call by pressing and holding CLR for three seconds. This terminates the phone call and gives your handset priority over the handset making the phone call. Also, when any DSC call is received or a distress call is transmitted, phone operation is interrupted and radio operation is given priority. Channel 70 is always monitored for incoming DSC calls.

Making a call

To make a phone call, remove the handset from the cradle hook and press the FUNC key followed by the 3/CELL key. CEL appears on the 7-segment display. Enter the telephone number to be called with the numeric keypad. The number you just input appears on the dot matrix display. If the phone number exceed 9 digits, the number scrolls and only the last 9 digits are visible.

Press the ENT key to verify the number on the dot matrix display is correct. Then press ENT again to send the call. Make your phone call as usual. When the call is complete, hang the handset on the cradle hook or again press FUNC followed by 3/CELL. The unit returns to normal operation.

Receiving a call

When a phone call is received, an alert tone is sounded and INCOMING CELL CALL is indicated on the dot matrix display. To answer the call, press the FUNC key followed by the 3/CELL key. Any handset can be used to answer an incoming call but when the call is answered, only this handset can be used for cellular phone operation. Other handsets can only be used for radio signal receiving.

3.5.20 Intercom Mode

When more than one handset is installed, Intercom operation enables talking among the stations (handsets). To start Intercom mode, press the FUNC key followed by the 0/IC key. If only one handset is installed, the operation is cancelled and an error alert sounds.