NEC Neax 2400 Ipx Isdn Feature Programming Manual

							NDA-24305 CHAPTER 2
Page 3
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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 Handler
DTI PA-24DTR Digital trunk interface
PLO PA-CK16-A/17-A Phase Lock Oscillator
ILC PA-8ILCG ISDN Terminal Equipment
NT2
PBX
PRT
DSU NT1
T
PLO ELC
LC
AT I TE2
Dterm
DP/PB
G3FAX
ATTCONISDN
NT1: Network Ter mination 1
NT2: Network Ter mination 2
TE1 : ISDN Terminal Equipment
TE2: Non ISDN Terminal Equipment
DSU: Digital Service Unit
DA: Data Adapter
PC: Personal Computer with V.24ILC
TE1
DTI
DCH 
						

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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 
Originating
User Side
Null
(0)
Call Initiated
(1)
OG call
Proceeding
(3)
Call Delivered
(4)
Active
(10)
Disconnect
Request
(11)
Null
(0)
Null
(0)
Call Initiated
(1)
OG call
Proceeding
(3)
Call Delivered
(4)
Active
(10)
Disconnect
Request
(11)
Null
(0)Null
(0)
Call Present
(6)
IC call
Proceeding
(9)
Call Received
(7)
Active
(10)
Disconnect
Indication
(12)
Null
(0)
State of 
Te r m i n a t i n g
User Side
Null
(0)
Call Present
(6)
IC call
Proceeding
(9)
Call Received
(7)
Active
(10)
Disconnect
Indication
(12)
Null
(0)State of Network
OG Side
IC Side
Release
Request
(19)Release
Request
(19) Connect
Request
(8)Connect
Request
(8)
SETUP
CALL PROC
ALERT/PROG
CONN
CONN ACK
DISC
REL
RELCOM
SETUP
CALL PROC
ALERT/PROG
CONN ACK
DISC
REL
RELCOM
CONN 
						

							NDA-24305 CHAPTER 2
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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 BC.
Kind  of  Terminal BC
Analog single line telephone Speech
Digital telephone (D
term) Speech
G3 (Group 3) Fax 3.1 kHz audio
Modem 3.1 kHz audio
DTE via Data Module/Adaptor Unrestricted digital
G4 (Group 4) Fax Unrestricted digital 
						

							CHAPTER 2 NDA-24305
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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 the ISDN line.
STEP 2: ASPA - Assign the LCR access code for a dummy route number.
- Any dummy route number can be used if the route number is not duplicated.
- When Sub Address Dialing is desired, assign SUB=1. (Refer to Feature “SUB ADDRESS
- PRESENT”)
- An example “Sub Address Dialing” from a station is shown below.
- A station user may dial the Sub Address when he/she uses the ISDN trunk access code
with SUB=1. The call will be originated after Register Inter Digit Timer value if the
station user does not dial Sub Address.
- The Register Inter Digit Timer is determined by ASYD SYS1 INDEX 129. (Default data =
6 seconds.)
STEP 3: AMND - Assign the Maximum Necessary Digits (MND) for each Area/Office code (DC).
- DC must include ISDN trunk access code and ISDN address but not a Sub Address (SA).
- Analog/Digital Line Data (A/D) must be assigned as data 1 (Digital) for the DC which
includes ISDN trunk access code.
A/D = 1
STEP 4: ARNP - Assign the ISDN trunk access code to the ISDN Bch route number, but not a dummy route
number.
STEP 5: ARTD - Assign the following CDN data for the dummy route number.
TCL (CDN 6) = 1 or 4 (depending on the requirement)
L/T (CDN 7) = 1
AC (CDN 13) = 1
- The other CDNs may be left at default value (data 0) for the dummy route.
9-00-81-35463-1111-*5650#
- International Sub Address (SA)
Access Code
- Country Code
(CC)
-Subscriber
Number (SN)
 ISDN trunk access code (LCR)
ISDN Address 
						

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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 assigned in the AFRS
command.
- Since the system should transmit only ISDN address, skip the ISDN trunk access code.
- Route advance is available by programming RA, E and RT. OVFT is also available.
- ACMO is available with programming PNL.
- ATCP and/or ASDC is available with programming TDPTN.
STEP 8: ARSC - Assign RSC that allows RRIs for both ISDN Bch trunk route and the dummy route but not
for ISDN Dch trunk route.
Note:For the Bearer Capability (BC) in ISDN;
Caller should provide the following service class data
ASFC - SFI48 = 1 (for 3.1 kHz audio) ---- Group 3 Fax. Mode
m
SFI48 = 0 (for speech) 
						

							NDA-24305 CHAPTER 3
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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 should be “0” (default data).
Note 1:INT (CDN65): 1 N-ISDN2
2 Australia
3 INS 1500
4 ITU (CCITT), ETSI
5 AT&T (#4/#5 ESS)
6 INS 64
7 NT DMS 100 / DMS 250
8 Not used
9 TTC Q931a protocol Tie Line (Japan)
10 Q-SIG. (ETS 300 172)/IS-11572
Note 2:For “SUB ADDRESS - ADDRESSING”, assign “0”. (Refer to “SUB Address - Addressing” in Chapter
6.)
For “DID ADDRESSING”, refer to “DID Addressing” in Chapter 6. 2   - ONSG : 2/2 4   - INSG : 2/2 5   - TF : 3/0 6   - TCL : 1/1
7   - L/T  : 1/1 8   - RLP : 2/2 10 - SMDR : 1/0 15 - LSG : 12/13
28 - ANS : 1/1 30 - PAD : 4/7 31 - OGRL : 1/0 32 - ICRL : 1/0
34 - GUARD : 1/0 45 - A/D : 1/0 50 - DPLY : 1/0 63 - LYER1 :  0
65 - INT :  
Note 166 - DC :  Note 2 
						

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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 and Line Equipment Number (LEN).
Note:The above is for the basic (minimum) data. Refer to Chapter 4, ”Commands Concerning ISDN Data
Assignment” for others. 
						

							NDA-24305 CHAPTER 3
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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
6
5
4
3
2
1
LV  0
LV  7
6
5
4
3
2
1
LV  0LV  7
6
5
4
3
2
1
LV  0
LV  7
6
5
4
3
2
1
LV  0Dch    1
Bch  23
Bch   1
Dch   2
IF 32 PORTS/SLOT Group
  n+2
Note
Note 
						

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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 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    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
6
5
4
3
2
1
LV  0
LV  7
6
5
4
3
2
1
LV  0LV  7
6
5
4
3
2
1
LV  0
LV  7
6
5
4
3
2
1
LV  0Dch    2
IF 32 PORTS/SLOT Group
  n+2
Note
NoteSlot 
Dch    2
Slot
Dch    1
Bch  23
Bch    1