Instruction manual

Page 1868 of 3156 Italian Periodic Pulse Metering
553-3001-306 Standard 10.00 January 2002
When the DTI2 card detects that a pulse on the PPM bit (A in Italy) has met
all PPM timing requirements, the DTI2 card checks to see if the Italian PPM
feature is enabled. If so, the state of the B bit is also checked. At this point,
the PPM count will be incremented (in the card) only if the B bit is zero.
Using the Italian PPM option, the new card no longer reports the P1UU case
as a PPM pulse. With this feature enabled all state changes with B bit set to
one (for example, P1UU) are reported immediately by the DTI2 card. This
allows the main Central Processing Unit (CPU) to recognize Italian Release
Control pulses.
Operating parameters
This feature is not supported on the Option 11C, since there is no XDTI2 card
supporting the hardware requirements).
The feature does not work on the following DTI2 cards: QPC915A,
QPC915B, QPC536A, QPC536B, QPC536C, and QPC 536D. All of these
DTI2 cards, do not have the required firmware modifications.
The firmware checks whether the B bit is zero. This is hard coded in the new
DTI2 cards. Other combinations are not possible (for example, it is not
possible to report PPM pulses on the A bit only when the C bit is zero, and it
is not possible to report PPM pulses on the A bit only when the B bit is 1).
The Italian PPM option is stored for each loop. Hence, the Italian PPM option
is set the same for all channels on the loop.
Feature interactions
Call Detail Recording
This feature now allows Call Detail Recording on Italian DTI2 trunks to show
the cost of the call calculated from the PPM pulses.
Periodic Pulse Metering
This feature now allows PPM pulses to be counted on Italian DTI2 trunks.
The Italian DTI2 option default is set to NA (i.e., not active when software
prior to the introduction of this feature is upgraded). The existing operation
thus continues unaffected by the new feature.