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Time Slot Allocation for DTI/PRT/DCH Card
On each DTI/PRT card, the system recognizes the lowest and highest channel numbers to which trunk
numbers have been assigned, and allocates time slots to all the channels within them. If trunk numbers are
assigned to discontinuous channels in this case, the system also allocates time slots to channels not as-
signed.
For example, as shown below, even when Channel 1 through Channel 10 have been assigned by the system
data programming (CM07 Y=01) except Channel 5, the system allocates a total of 10 time slots for all the
ten channels. Therefore, to avoid allocation of unnecessary time slots, it is recommended that consecutive
channels are assigned on each DTI/PRT card.
In the case of the DCH card, one time slot is allocated for setting up a fixed path between the DTI and the
DCH by assigning Channel 16 of the DTI as the D Channel.
Time Slot Allocation for DTI
10
DXXX
9
DXXX
6
DXXX
5
NONE
4
DXXX
1
DXXX
CH0
NONE
– 34 –
CHAPTER 1 GENERAL INFORMATION
SYSTEM CONDITIONS
HIGHEST CHANNEL
10 TIME SLOTS ARE
ALLOCATED EVEN
WHEN CH5 IS NOT
ASSIGNED.
LOWEST CHANNEL
NWA-008852-001 Rev.5.0
98ch1001.fm
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