NEC NEAX2000 IVS2 Manuale Utente
CHAPTER 1 GENERAL INFORMATION
System conditions
NEAX2000 IVS
2
Q-SIG System Manual
ND-70923 (E), Issue 1.0
Page 13
Time Slot Allocation for DTI/DCH Card
On each DTI 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 assigned.
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 assigned.
, even when Channel 1 through Channel 10 have been
assigned by the system data programming (CM07 YY=01) excepting 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
card.
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
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.
and the DCH by assigning Channel 16 of the DTI as the D Channel.
Figure 1-8 Time Slot Allocation for DTI
10
9
6
5
4
1
CH0
DXXX
DXXX
DXXX
NONE
DXXX
DXXX
NONE
LOWEST CHANNEL
HIGHEST CHANNEL
10 TIME SLOTS ARE
ALLOCATED EVEN
WHEN CH5 IS NOT
ASSIGNED.
ALLOCATED EVEN
WHEN CH5 IS NOT
ASSIGNED.