AMX DTMF+ Interface AXB-DTMF+ - Manual (Page 20)

Programming
16 AXB-DTMF+ DTMF+ Interface
Changing a Default Ring Pattern
Change a default ring pattern using the appropriate Send_Command when programming the AXB-
DTMF+. Each ring pattern consists of five parts with each part having a specific Send_Command.
For more information on distinctive ring Send_Commands, refer to Distinctive Ring
Send_Commands.
Example:
Pattern 4's five parts are as follows:
! Part 1 is high and 300 ms (.3 seconds) long (ring).
! Part 2 is low and 200 ms (.2 seconds) long (no ring).
! Part 3 is high and 1000 ms (1 seconds) long (ring).
! Part 4 is low and 200 ms (.2 seconds) long ( no ring).
! Part 5 is high and 300 ms (.3 seconds) long (ring).
If you want to change the time values of Parts 2 and 4 (no ring) of Pattern 3:
1. To change Part 2 of Pattern 3, use the Send_Command 'P3_2-XXX' where:
! Time increment = 10 ms
! Default at reset = 20 (20 x 10 ms = 200 ms)
For example, issue the Send_Command
SEND_COMMAND DTMF, 'P3_2-25 ' (25 x 10 ms = 250 ms)
to change Part 2 of Pattern 3 from a value of 200 ms (.2 seconds) to 250 ms (.250
seconds).
2. To change Part 4 of Pattern 3, use the Send_Command 'P3_4-XXX' where:
! Time increment = 10 ms
! Default at reset = 20 (20 x 10ms = 200ms)
For example, issue the Send_Command
SEND_COMMAND DTMF, 'P3_4-25 ' (25 x 10ms = 250ms)
to change Part 4 of Pattern 3 from a value of 200 ms to (.2 seconds) to 250 ms (.250
seconds).
3. The normal length of time from the start of any pattern to its end time is usually 2- seconds. If
you increase the time value for any part of a pattern, make sure to decrease another part by the
same amount, maintaining the 2- seconds overall time for the pattern. For example, if you
increased the value of Parts 2 and 4 of Pattern 3 by 5 ms each, decrease Part 3 by 10 ms.
Values specified are in increments of 10 ms. That is, a value of 1 yields 10 ms, while
a value of 100 yields 100 x 10 ms, or 1 second.