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CHAPTER 6 NDA-24305
Page 196
Revision 1.0
NON-FACILITY ASSOCIATED SIGNALING - PRI
N-40 NON-FACILITY ASSOCIATED SIGNALING - PRI
1. General Description
A single D-channel can control more than the 23 bearer channels (23 B-channels) resident on the same T1
facility.
Capacity: Max. 167B + D (1-IMG system) 7 Circuit Cards (1-24 PRT + 6-24DTRS
Max. 191B + D (4-IMG system) 8 Circuit Cards (1-24 PRT x 7-24 DTR)
Note:
Please use this feature with D-CHANNEL BACKUP to improve reliability.
2. Operating Procedure
No manual operation is required.
3. Programming
1. All B-channels use the Common Route Number
.
Note:
Circuit cards used for the Common Route should be accommodated in the same LP.
STEP 1: Assign the numbering (LCR) data to access to ISDN.
STEP 2: ARTD - Assign the route data. (Refer to “CHAPTER 3”)
STEP 3: ARTD - Assign CDN115 (CMRT)=1 to both Bch and Dch.
STEP 4: ATRK - Assign the trunk data for B-ch. Note that the trunk data for Dch is set after STEP 7: ACIC1
command assignment. (Refer to “Chapter 3”)
Assign 47 Bch
to RT20 in this example.
STEP 5: ADPC - Assign PC (Point Code) to Bch route and Dch route.
<For example> RT=20 (Bch) PC=20
RT=21 (Dch) PC=20
PRT
23B+D
Dch: RT21
PRT
24B
Bch: RT20
ISDN