Phone line/attd dtmf dialing interdigit time, Number of times to repeat paging, Paging format - dtmf paging parameters – GAI-Tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telephone Interconnect Installation & Service Manual User Manual
Page 52: Dtmf outpulse timing, Dtmf paging preamble, Paging format – 1500 paging parameters, 1500 paging tone off time, 1500 paging preamble

PC Programming
PL1877A Microprocessor Radio Telephone Interconnect
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Phone Line/Attd DTMF Dialing Interdigit Time
Selects the time allowed between individual digits entered as paging input.
Number of Times to Repeat Paging
Determines the number of times to repeat the page. The valid range is 0 to 8. Consult applicable rules
before exceeding one signal event.
Paging – Paging Format - DTMF Paging Parameters
DTMF Outpulse Timing
Determines the duration of the DTMF digit/inter-digit time.
DTMF Paging Preamble
Contains a DTMT preamble of up to nine digits for paging.
Paging – Paging Format – 1500 Paging Parameters
1500 Paging Tone Off Time
Each 1500 digit consists of an ON time and OFF time. The OFF time is programmed here, the ON time
is 100 ms minus the OFF time.
1500 Paging Preamble
Allows a user to enter a 1500 Preamble, up to nine digits, for paging.