Specifications

Alphanumeric display information
If the system is equipped with receivers incorporating an
alphanumeric display, preprogrammed alphanumeric
messages can be transmitted via the desk to these receivers.
A maximum of 31 such messages can be programmed in
to the paging desk using its RS 232 input.The programmed
alpha messages can also incorporate a numerical portion
which can be entered via the desk’s keyboard when entering
a call.The numeric portion entered will be placed
automatically in to the predefined positions that make up
the alpha message.These positions are indicated using a
special character when programming the 31 alpha message
list in to the desk.
Alpha messages are selected at the desk’s keyboard by
entering the assigned number of the alpha message,after
first entering the receiver address and bleep pattern digits
and then pressing the program key. The call can then be
transmitted automatically or manually by pressing the
desk’s ‘ Call transmit’key.
Paging calls with alpha messages can be generated via the
following:
- Direct calls
- Alarm key call
- RS 232 input
- Multi-purpose coupler calls
- Remote contact calls
- FIAC calls
- Keyboard calls
Messages can be linked to the preprogrammed calls (direct,
remote contact calls etc.) by linking the message number to
these calls using the desk editor during programming .
Speech
The desk can be preprogrammed to allow a spoken
message,after the call,to be transmitted to receivers which
are capable of receiving the audio signal.
Speech can be made dependant on the value of the call tone
digit, by transmission of the call by using the TALK key or
made to follow every call. In the latter case,the speech call
can be preprogrammed to follow the call automatically or
manually, by using the TALK key.
A speech time of between 10 and 254 seconds can be
programmed, or an infinite time which can be terminated
by pressing the RESET key.A facility is available where a
programmed speech time (of say 100 seconds) can be
extended by the same duration by pressing the TALK key
immediately after the first 100 seconds have expired.
64 | Personal Security Data Book
The keyboard of the desk is divided into two groups :
a) sixteen numerical keys
(0 to 9 and A to “-”)
b) nine function keys:
- Program key
- Direct call key
- Call transmit key
- Priority key
- Monitor key
- Talk through key
- Alarm key
- Reset key
- Talk key
A 16 character alphanumeric LCD is suitably positioned to
display all digits and alpha information entered during
operation and programming.In the stand-by mode this
display can show the real time in hours and minutes.
There are 3 LED’s which indicate the following:
a) Green - Power ON
b) Red - Transmitter ON
c) Yellow - Desk-in-use
System size
The control desk can be programmed to cater for systems
with a capacity of 10, 100,1000,or 10,000 receivers which
can be individually paged. The number of receivers in the
system will determine the number of call number digits to
be keyed into the desk (maximum 4 digits = 10,000
receivers and the available call numbers will be 0000 -
9999).
Call tone
Any one of 14 different call tones can be selected to page
the receivers.These can be selected by entering the chosen
call tone digit,via the desk keyboard,after the receiver call
number has been entered. The receiver will respond with
the bleep pattern related to the call tone digit. One of the
call tone digits may be linked to a speech call,and when this
call tone digit is entered, a spoken message may be
transmitted after the bleep tone.
5-Digit display information
If the system is equipped with receivers with a numerical
display head fitted, a one to ten digit message can be
transmitted to these receivers.The receivers display five of
the digits and retain the remaining five in memory. To
display the remaining five digits the receivers recall button is
pressed.