NEC Univerge sv8500 Manual page 1207

Open ATRK command and specify trunk data on Virtual Speech Channel. For more information, refer to
the Command Manual. The following is an example for assigning channel data of T1 and E1 respectively.
Note that the data setting for Dch must be performed after the ACIC1 command assignment.
Be sure to assign route data by ARTD/ARTI in advance before assigning trunk data by ATRK.
Note:
Do not assign any trunk data to Group 0 of Unit 0 in even number Module group because it cannot be used
Note:
with MG-PRI/PRA.
The total number of B-channels must not exceed 460 per two Module Group (MG) pair.
Note:
i.e. MG2/3, MG4/5 and MG6/7.
T1(23B+D) setting
LV-7
GP-5
GP-4
Note: Virtual trunk occupies 1HW (4-Group). For example, if one channel is registered for Virtual Trunk,
the whole HW is occupied exclusively for the Virtual Trunk.
Specify Destination Point Code
STEP 8
Open ADPC command and register Point Code on Virtual Speech Channel and Virtual Signaling Channel.
Note that the Point Code must be different from the Point Code for CCIS. (ISDN does not actually use the
Point Code but it is necessary to develop the Office Data.)
NDM command (ADPCN) cannot be used here.
Note:
Specify CSC Information
STEP 9
Open ACSC command and assign Virtual Speech Channel into the even numbers (130
group, and Virtual Signaling Channel into the odd numbers of the CSC group.
NDM command (ACSCN) cannot be used here.
Note:
LV-7
6
6
5
5
4
4
3
3
GP-7
2
2
1
1
0 0
LV-7
6
5
4
3
GP-6
2
1
0
Note
E1(30B+D) setting
LV-7 LV-7
6
5
4
3
GP-5
2
1 1
0
LV-7
6
5
4
3
GP-4
2
1
0
VOL.2-954
MG-PRI/PRA
LV-7
6
5
4
3
GP-7
2
1
0
LV-7 LV-7
6 6
5 5
4 4
3 3
GP-6
2 2
1 1
0 0
:Virtual Signaling Channel
:Virtual Speech Channel
∼ 254) of the CSC