GAI-Tronics IPE2500A, IPE2500A-MLS Paging Encoder / Desktop Controller User and Installatoin Manual - Manual (Page 24)

Operation IPE2500A and IPE2500A-MLS Paging Encoder/Desktop Controller
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Tone Supervisor Control
The IPE2500A offers a tone supervisor control feature which locks out transmission of parallel units
upon detection of the proper tone control sequence. This feature cannot be activated during a parallel
transmission. The supervisor unit is programmed with appropriate on/off frequencies and a supervisor
button. Parallel, non-supervisor units are programmed with the same on/off frequencies.
When the supervisor unit operator presses the supervisor button and turns on the supervisor function,
programmed parallel units will not allow any transmission and their keyboards will be locked. The
display flashes
SPV
until the supervisor turns the function off.
The IPE2500A can optionally be configured for relay controlled supervisor using a relay programmable
button.
“Hard” Supervisor Control
To ensure parallel units are locked out of transmission upon demand by the supervision position, the
relay I/O module should be used and the supervisor unit placed closest to the transmitter or adapter. Note
that tone supervisor cannot be activated during a parallel transmission.
Secure Operation
When using Tone or E&M with Tone control, it is possible to use two-function tone generation to adapt
to certain secure capable systems. Parallel status does not support this mode of operation.
In this configuration, the IPE2500A generates a HLGT, a coded/clear function tone, then the channel
control function tone. Each of the coded and clear function tones are programmable to the same
frequencies as the channel control function tones and is the same level.
N OTE : A programmable button should be used to toggle the state of the unit from coded to clear
transmission mode.
By adding factory or field-installed options, other types of control, besides tone, may be used.