Service manual

Operating Manual SL6000 Series

Page 23 of 27

DTMF

The DTMF feature is PC programmable and attached to the PTT (Press to Talk).

Once the DTMF ANI (Automatic Number Identification) has been pre-programmed, ANI is

encoded on every PTT. The DTMF call can be set up to be sent at the start or end of

transmission.

Receiving DTMF

When a DTMF code is received DTMF data is displayed on the LCD. Five characters can

be displayed on the LCD.

If the DTMF code is longer than five characters the SL6402 / 6102 will decode and display

the first five characters, then display any remaining characters.

Transmitting DTMF

The DTMF feature is PC programmable and attached to the PTT (Press to Talk). Up to

five digits can be pre-programmed. There are a number of parameters that can be set

associated with the DTMF Feature. Please see below.

DTMF type

Standard DTMF or Non Standard.

DTMF mark - space time

This is the length of each of the DTMF tones transmitted. 65:50 or 55:50.

DTMF Gen time

Time taken to generate the tone 340/240

ms.

DTMF out time

The DTMF code can either be sent at the

start or the end of the call.

1209 Hz 1336 Hz 1477 Hz 1633 Hz

697 Hz 1 2 3 A

770 Hz 4 5 6 B

852 Hz 7 8 9 C

941 Hz * 0 # D