NEC Neax 2400 Ipx Isdn Feature Programming Manual

NDA-24305 CHAPTER 2
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CHAPTER 2 GENERAL INFORMATION
1. GENERAL
This chapter explains basic office data assignment procedures for ISDN and describes ISDN service features. 
2. HARDWARE CONFIGURATION
The system provides PRT as a primary rate ISDN interface. DTI with DCH is available also. The hardware con-
figuration is shown in Figure 2-1.
Figure 2-1   Hardware Configuration
Table 2-1  Hardware
SYMBOL HARDWARE REMARKS
PRT PA-24PRTB-A ISDN primary rate Interface
DCH PA-2DCHA D-channel...

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GENERAL INFORMATION
3. BASIC KNOWLEDGE
3.1 MESSAGE SEQUENCES FOR LAYER 3
The message sequence for call establishment and clearing is shown in Figure 2-2.
Figure 2-2   Message Sequences for Layer3
Note 1: 
ALERT: Alerting DISC: Disconnect
CALL PROC: Call Proceeding REL: Release
CONN: Connect RELCOM: Release Complete
CONN ACK: Connect Acknowledge
PROGRESS: Progress
SETUP: Setup
Note 2:The number in ( ) shows Call state value for User or Network.
State of...

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GENERAL INFORMATION
3.2 BEARER CAPABILITY (BC) INFORMATION ELEMENT
The purpose of the Bearer Capability (BC) information element is to indicate a bearer service to be provided by
the network (ISDN). It contains only information which may be used by the network. 
The Bearer Capability information element is used for compatibility checking in the connection as well as Low
Layer (LLC)/High Layer (HLC) Capability.
The following shows the relation between a terminal and...

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This page is for your notes. 

NDA-24305 CHAPTER 3
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CHAPTER 3 BASIC DATA ASSIGNMENT FOR ISDN
1. ISDN LINE ACCESS CODE ASSIGNMENT
To initiate seizure of an outgoing trunk, one of four methods - OGC, OGCA, LCR, LCRS - can be used in the
system. Among the four methods, however, “LCR” method alone can access an ISDN line. For this reason, be
sure to assign “LCR” as “Kind of service (SRV)” in the ASPA command. The following explains how to
program LCR data.
STEP 1: ANPD - Assign the first digit of the LCR access code for...

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BASIC DATA ASSIGNMENT FOR ISDN
STEP 6: AFRS - Assign Number Pattern Code (NPC) and Outgoing Route Selection Pattern Number (OPR)
for the dummy route number.
- NPC may include ISDN trunk access code and ISDN address but not a Sub Address (SA).
- OPR is a kind of intermediator between AFRS and AOPR. Therefore any number may be
used from 1 through 4000. (Be careful not to assign duplicated OPR.)
STEP 7: AOPR - Assign ISDN Bch route number to the OPR which has been...

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BASIC DATA ASSIGNMENT FOR ISDN
2. ISDN TRUNK DATA ASSIGNMENT
STEP 1: ASYD - Assign the following indexes.
SYSl Index 91:  Single PLO  b7
b6b5b4
 0 1  0 1
Dual PLOs  b7
b6b5b4
 1 1 1 1
SYSl Index 186: CCIS/ISDN in service b6
b6
 1 0 (When b6=1, ISDN service is invalid.)
SYSl Index 187:  always 00 (hex)
SYSl Index 220:  ISDN is in service For BRI Type of Interface
STEP 2: ARTD - Assign the route data for both Bch and Dch.
Data for Bch/ Data for Dch 
The other data...

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BASIC DATA ASSIGNMENT FOR ISDN
STEP 3: ATRK - Assign the trunk data for Bch only here. Note that the data assignment for Dch must be
performed after the ACSC command assignment.
- How Bch and Dch LEN appear in PIM is shown in Figure 3-1 and Figure 3-2.
- As seen from those Figures, the number of B-channels and D-channels are:
24 PRT (B channel × 23, D channel × 2)
- Regarding the route number of the Bch assigned by the ARTD command, assign the Bch’s
trunk number...

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BASIC DATA ASSIGNMENT FOR ISDN
Figure 3-1   ATRK for 24PRT
Note 1:Slot x and Slot y must be in the same HW.
Note 2:The even-numbered module group, Unit 0, Group 0 cannot be assigned as Dch LEN data.
Odd
Number
Group
Even
Number
GroupLevel Slot x Slot yLV  7
6
5
4
3
2
1
LV  0
LV  7
6
5
4
3
2
1
LV  0
Bch   8
7
6
5
4
3
2
Bch   1
 
Dch   2Dch    1
Bch  23
22
21
20
19
18
17
16
15
14
13
12
11
10
Bch    9
IF 16 PORTS/SLOTGroup
  n+3
Group
  n+1
Group
  nLevel Slot
LV  7...

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BASIC DATA ASSIGNMENT FOR ISDN
Figure 3-2   ATRK for 24DTR + 2DCH
STEP 4: ADPC-Assign Point Code for both Bch route and Dch route.
- The values for a Point Code is 1 through 16383. You can assign any number as the Point
Code for them, however, do not duplicate the Point Code which is used for No. 7 CCIS.
 When #0 DCH of 2DCH card is used.
Note 1:Slot x and Slot y must be in the same HW.
Note 2:The even-numbered module group, Unit 0, Group 0 cannot be assigned...