Installation manual

14
Audio Mode Operation
When in Audio Mode, the “Audio” light will be ON and this
message will be displayed:
-L01 Digital Rec-L01 Digital Rec
-L01 Digital Rec-L01 Digital Rec
-L01 Digital Rec
TWO WAY AUDIO ONTWO WAY AUDIO ON
TWO WAY AUDIO ONTWO WAY AUDIO ON
TWO WAY AUDIO ON
The DRL2A buzzer can be used to indicate Audio Mode
operation by programming Option [3E] MUTE BUZZER as
“02”. To silence the buzzer, press the [ACK] button.
Select Option [4D] to have a message indicating Audio
Mode operation sent to the printer and the computer.
For example, use the character “P” (for “phone”) to represent
Audio Mode operation. Program Option [4D] as “50” (the
ASCII code for “P” is 50). When Audio Mode operation has
begun, the following messages will be sent to the printer
and computer:
Printer: “L01-0000-P01 AudioLine1”
Computer: “0000 P 01”
• “L01” indicates Line Card 01
• “0000” is the internal signals Account Code
• “P” is the character programmed in Option [4D]; “01”
again is the Line Card number
2-Way Audio Mode operation may be manually cancelled
by pressing the [CANCEL] button. If not manually cancelled,
Audio Mode operation will automatically be cancelled when
the time programmed in Option [49] expires.
The Audio Mode may also be cancelled remotely through
the Ring Simulation input on the back of the receiver. Future
central station audio management equipment will be able
to use this input to hang up the line and put the receiver
in Stand-By Mode when the operator’s telephone is hung
up.
To disable the 2-Way Audio Mode feature, program Option
[49] as “00”.
An output is also available on the SG-DML2A module (TXPG1
and TXPG2) which may be used to indicate activation of
Audio Mode operation or to indicate which telephone line
should be picked up for audio operation.
Alarm Zone Method
After the digital alarm data has been received and the
receiver has transmitted the last kiss off, the receiver
compares the alarm zone codes received in 3/1, 4/1, 4/2,
4/3, 10-40 BD or DTMF touch-tone formats to the value
programmed in option [50]. The alarm zone code is the
last digit for all formats. This is done to determine if the 2-
Way Audio Mode should be activated.
For more details, please refer to the programmable options
section.