E F Johnson Company 2425M80 Benutzerhandbuch
Draft 02 - Sep 1 2015
5-17
Conventional Mode Features
When an emergency alarm or call is placed, this ANI signaling is replaced by the
Emergency DTMF ID (see Section 5.9). Refer to Section 5.12.5 for information on
MDC1200 ANI.
Emergency DTMF ID (see Section 5.9). Refer to Section 5.12.5 for information on
MDC1200 ANI.
5.12.1 Single Tone Encoder
The radio will transmit and send a single tone as programmed. Single tone ANI provides
call-in signaling, but does not provide identification of individual units, i.e. all units use
the same single tone. Generally 1050 Hz is used for single tone RTT, but the radios and
decoders must be programmable to other tones in the audio range. All tones must have a +/
-0.2% frequency stability, and the tone length must be programmable to a pre-determined
period of time from 0.5 to 2.5 seconds, in increments of 100 ms or less.
call-in signaling, but does not provide identification of individual units, i.e. all units use
the same single tone. Generally 1050 Hz is used for single tone RTT, but the radios and
decoders must be programmable to other tones in the audio range. All tones must have a +/
-0.2% frequency stability, and the tone length must be programmable to a pre-determined
period of time from 0.5 to 2.5 seconds, in increments of 100 ms or less.
To use the single tone encoder functionality, program the radio with RTT with Single
Tone Encoder selected as the type of RTT. The radio transmits and sends a tone of the
programmed frequency and duration. When the tone is sent, all other radios on the system
will hear the tone transmitted, and need to open audio.
Tone Encoder selected as the type of RTT. The radio transmits and sends a tone of the
programmed frequency and duration. When the tone is sent, all other radios on the system
will hear the tone transmitted, and need to open audio.
5.12.2 Two Tone Encoder
The Two Tone Encoder operates in the same fashion as the Single Tone Encoder except it
sends two tones back to back. The two tone encoder Initial Delay, Modulation, and Inter
Digit Delay are programmable, as are the Tone Alias, tone frequencies, and tone
durations.
sends two tones back to back. The two tone encoder Initial Delay, Modulation, and Inter
Digit Delay are programmable, as are the Tone Alias, tone frequencies, and tone
durations.
A maximum of 64 tones can be programmed. Each tone will send two tones, each of its
own frequency and duration. The tone frequencies are programmable from 288.5 Hz to
3,086.0 Hz in 0.1 Hz increments. Tone durations are programmable from 0.1 seconds to
12 seconds in 0.1 second increments.
own frequency and duration. The tone frequencies are programmable from 288.5 Hz to
3,086.0 Hz in 0.1 Hz increments. Tone durations are programmable from 0.1 seconds to
12 seconds in 0.1 second increments.
The user can activate Two Tone in several manners. The first is to program a button for
Two Tone and press it. This will send the current, active Two Tone, which is defaulted to
the first tone in the Two Tone list upon profile download.
Two Tone and press it. This will send the current, active Two Tone, which is defaulted to
the first tone in the Two Tone list upon profile download.
The second is to program Two Tone to the menu, select it from the menu, scroll to the
desired tone in the list, and press PTT or the select button (pressing the rotary knob on the
mobile). Pressing PTT or the select button will send the tone and store it as the active Two
Tone. The Two Tone List is exited if the Menu Mode Timer expires, if the user presses the
exit button (Exit button on the mobile), or if the user presses the button programmed for
Two Tone while in the Two Tone List. Exiting the menu will not save the current Two
Tone as the active Two Tone.
desired tone in the list, and press PTT or the select button (pressing the rotary knob on the
mobile). Pressing PTT or the select button will send the tone and store it as the active Two
Tone. The Two Tone List is exited if the Menu Mode Timer expires, if the user presses the
exit button (Exit button on the mobile), or if the user presses the button programmed for
Two Tone while in the Two Tone List. Exiting the menu will not save the current Two
Tone as the active Two Tone.