UT12-000 Universal Encoder/Decoder
SM40 Installation and Operation Manual
May 15, 2012 Rev: 5.00
Page 3-8
ENG-FORM: 806-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
3.4.2.5 Transmission
Specifics
Pressing the
PTT
button on the microphone will not send any tone sequence. This action must be
accomplished using the
button.
3.4.2.6
Monitor Mode effects on transmission
If the
button is pressed while the current channel has a carrier, and the UT12 is in MON OFF mode,
the control head will display
*** BUSY ***
and the UT12 will generate a busy tone on the headphone. No
tone sequence is transmitted.
When the current channel has a carrier, and the UT12 is in MON ON mode, after the
button is
pressed the UT12 will transmit the last selected tone sequence.
3.4.2.7
Transmitting a Special Function Tone Sequence
The operator is able to transmit a ‘special function’ tone sequence. Special function tone sequences are
stored in predetermined memory locations. There are three special functions.
Pushbutton
Tone
Sequence
Function
LAM
AFN
Open phone number selection
As Configured
As Configured
Disconnected
from
network
81098
80200
Transmit
aircraft
status
code
820XX
820XX
button
LAM Network:
Pressing this button causes the UT12 to log onto the PSTN with the CCIR code 890HH (where
HH is the home region), and then either 81091 (DTMF) or 81093 (CCIR) (short first tone),
followed by its own ID sequence (short first tone). The PSTN (fixed) should reply with a connect
tone of 425 Hz to notify the user that the DTMF or CCIR phone string may be sent.
AFN Network:
This button logs onto the FDN (PABX) with the CCIR code P
Ö
PPPP (long first tone), where
PPPPP is the AFN Phone code set from the configuration mode (see Section 3.8). If the user
desires an 8XXXX or 80XXX+8XXXX string to be sent, it must be sent manually or from a tone
recall.
Use of this button on either network will automatically place the UT12 into DTMF manual transmit
mode. When the phone call is disconnected (The
Button is pressed or loss of carrier for 20
seconds) the UT12 will return to CCIR mode.
During the call the
button will only recall DTMF sequences. The
button will not
function until after the call is disconnected.
Button
This button sends out a CCIR ‘call breakdown’ code. The tone mode will be set to CCIR. The
head phone audio will be turned off in a
MON OFF
mode.
