GAI-Tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telephone Interconnect Installation & Service Manual - Manual (Page 115)

PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification
109 12/10
Para-
meter
No.
Description
Control Digits Refer to
Section on
Page:
123 Determines the number of rings that the
PL1877A must receive before generating
ring signaling to the mobile. Valid range = 1–9
Default = 1 88
124 Determines the function of programmable
GPI-1 (pin P1-14). 0 = GPI-1 unused
1 = Aux. carrier detect input 86
125 Determines the function of programmable
GPI-2 (pin P1-16). 0 = GPI-2 unused
1 = Aux. carrier detect input 86
126 Direct access duration - the number of 5-
second periods in the direct access time. Valid range = 0–8
Default = 0 100
127 Enhanced VOX receive recovery delay -
the number of 50-ms periods in the delay
between transmitting and receiving
enhanced VOX mode. Valid range = 0–8 84
128 The time, in seconds, that the PL1877A is
to pause and wait for a dial tone when the
pause character is encountered in an auto-
dial number. Valid range = 0–7
Default = 5 98
129 Determines the “on” time for regenerated
digits. Valid range = 0–8 (50–450
ms)
Default = 1 89
130 Rotary dial pulse rate. Valid range = 0–9
0 = 9 pulses per second
1 = 6 pulses per second
2 = 7 pulses per second
3 = 8 pulses per second
4 = 10 pulses per second
5 = 11 pulses per second
6 = 12 pulses per second
7 = 13 pulses per second
8 = 14 pulses per second
9 = 20 pulses per second
Default = 0 89
131 The number of busy tone cycles that must
be received to cause the PL1877A to
disconnect during a mobile originated call.
When this parameter is set to 0, busy tone
detection is disabled. Valid range = 1–15
Default = 0 93
133-138 Prefix to * landline access code - the
access code a landline user must enter as a
prefix to the * command, before being
granted direct channel access or selective
signaling privileges.
Valid range = 0–$D 101