Section 3. Operation
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pager number in a keypad stack is found to be invalid, the transmission halts and all
remaining pager numbers are lost.
2. Checks for a channel busy input. If detected, the encoder blinks the display message
“buSY” continuously at a rapid rate until an internal timer determines that the channel
has been available for two seconds.
3. Closes the audio relay to disconnect the desk microphone and connect the encoder's tone
output to the transmitter's audio input.
4. Turn on the transmitter by closing the push-to-talk (PTT) relay contacts.
5. Send the paging information to the transmitter and display “PAGE”.
6. If another page is waiting in the memory stack, the pager number of that call is displayed,
validated, and Step 5 is then repeated.
7. If Talk is activated: Open the audio relay to connect the desk microphone to the
transmitter and display “tALH”. The voice message may be spoken at this time.
8. If a pager muting transmission is required, close the audio relay to disconnect the desk
microphone and display “PAGE”. The muting transmission is sent then.
9. Turn off the transmitter by opening the PTT relay.
10. Display the pager number again to allow for repaging of the pager number displayed by
pressing the PAGE key.
Repage
Upon completion of a paging sequence, the encoder redisplays the last six digits of the pager
number just sent. To send to that pager again (repage), just press the PAGE key. The encoder
automatically goes through the entire paging cycle again. A message format does not repeat
the old message. The encoder automatically prompts for a new message and wait for a PAGE
key depression to start the paging sequence again. Only the pager number shown in the
display is repaged. Once the display has been cleared, Repage no longer works.
Busy Channel
The transmit inhibit input senses a busy channel when the input is closed to ground or at a
TTL low level. The transmitter will not be turned on until this input is open or at a TTL high
level for two consecutive seconds.
Continuous Transmit Mode
The encoder can be configured to continuously transmit a single page with a one-second
pause between transmissions by enabling the Continuous Transmit mode. Continuous
Transmit mode is enabled/disabled under the SYStEM programming by setting “cont”
variable to either 0 (= Continuous OFF) or 1 (= Continuous ON). The value of this particular
