Data Creation in Local Exchange


Data Creation in Local Exchange (LE)

There are basically different type of technologies used as local exchange. An RAX has been tested successfully with technologies like EWSD,OCB,5ESS and C-DOT. To facilitate the BSNL staff for connecting AN-RAX with above mentioned LEs, following are the commands and their parameters used in corresponding LE.

  • C-DOT AS LOCAL EXCHANGE
    Procedure for equipping VU and creating AN-Interface at C-DOT MAX If the VU has not been equipped then first equip VU by following process. The software version should be either 2_2_1_3 or 2_2_1_4 (all patches). It is not supported in 2_1_1_1 link.

    • Equip the VU frame by using the command EQUIP-FRAME with the following parameters;

MOD-NO = BM number

RACK-NO =

FRAME NO = Depending on the frame to be equipped.

TIC-ID = TIC ID of the frame to be equipped.

FRAME TYPE = VU

Data Creation in Local Exchange

  • Equip PHCs in the slots in which SHM card are Physically Present.
    Use the command EQUIP-TRML-CARD with the following parameters;

HW-TYP = PHC

VER –NO = 1

CARD-SLOT = BM-rack-frame-slot,

where slot=7/8/9/10 and 17/18/19/20

Depending on the slot position of phc

Note: The command will be rejected if VU is not already equipped in the switch.

  • Initialize VU
    Use the command PUT-SWU-INS with the following parameters;

MOD-NO = BM Number in which VU is equipped

UNIT –ID =TIC ID of the VU

With the corresponding TIC becoming INS-ACT , the VU gets the path to the APC, critical alarm will now be raised for VU on the ADP. After successful code and patch loading VU comes up and unit status of VPC, VMU-0, VMU-1 is shown as IN SERVICE and VPC-1 as INS-SBY in DISPL-SYS-ALL command of the BM

  • Equip DTS card in DTU frame by the command equip-trml-card, using following parameters

HW-TYP = DTK-CCS

VER-NO = 1

CARD-SLOT = BM-rack-frame-slot, depending on the slot

where card is to be Equipped.

AI-NUM * = AN Interface Number (1-100)

AI-NAME = Interface Name

AI-TYP = V5.2

VAR-ID * = (Maximum value 127)

AI-CTG = 1

ST-L3ADR = 0

AI-LNK = (PCM-ID1)-0 & (PCM-ID2)-1

PRI-LNK = 0

SEC-LNK = 1

PROT-INF = 4 (ACCL-PORT-ALIGN)

Note :-

* The value should be same as defined at AN side ST-L3ADR preferred

to be define as 0

  • Creation of Subscriber is to be done by using command cre-sub using following parameters:

DIRNO :

[TEN] : NONE

[AISUB-ID] * : (AI-NUM)-(L3ADR ) eg : 1-0

[CHNL-NO] : NONE

[LIN-TYP] : ORD-LIN

[INS-TYP] : DECAD

[SUB-PRI] : 1

[CAL-MOD] : NO-INT

[ORG-REG] : NO-ORG

[TRM-REG] : NO-TRM

[MTR-CLS] : NRM-MTR

[DET-BLG] : ORD-BLG

[ACC-BAR] : INCMNG_NOT_BAR-OG_UPTO_LCLALL_

BS

[LIN-CAT] : 1

[SUB-CTG] : 1

[CAB-ID] : 1-1-1

[OPR-ACC] :

[BS] : BS12

[B-SELECT] : SEQ

[CHNL-BS] : 1-ALL_BS

[CALL-BS] : 1-ALL_BS

[ACS-OPT] : NRML

Note: All the parameters are to be defined same as in case of ordinary

subscriber.

accept AI-SUBID

TEN= None

  • The status of AN subscribers, AI channels and PHC terminals can be seen by using DISPL-TRM-STATUS command by using following

parameters.

[STAT-TRM] : ALL

TML-TYP :

[TEN] :

[DIRNO] :

Note: Ten value is to be given when TML-TYP = AICHNL/PHC and DIRNO

is to be given for TML-TYP = ANSUB.

  • EWSD AS LOCAL EXCHANGE
    Testing of AN-RAX done with EWSD as LE at Karol Bagh exchange, New Delhi. Following are the commands and their details which are used in EWSD exchange. The patch used for V11 version is CJ144 and for version V13 is CJ145.

    • CREATION OF INTERFACE :

>CR V5IF

V5IF = interface number

V5IFID = interface ID

IFTYPE = V52

PROVAR = this should be same as variant ID at AN side

V5PORTS = total number of ports

  • CREATION OF V5 LINKS

>CRV5LINK

V5IF = interface number

V5LINK =0-13-0 ( first zero is sort of BM no. 13 is LTG no.,and last zero

is PCM no.)

V5LINKID =it is logical number given to the PCM (say 0)

This command has to be given for standby link also. It is to be noted that the standby link cannot be of same LTG (13 in this case). In one LTG maximum of four PCM can be configured.

  • MODIFICATION OF TIME SLOT

>MODV5TS

V5IF = interface number

V5LINKID =0

V5TS =16

USAG =CCH

PROTGRP =1

(PROTECTION GROUP=2 is used when TS15 Is used as communication

channel.)

this command is given for both the links

  • CREATION OF V5 COMMUNICATION CHANNEL

>CRV5CMCHAN

V5IF = interface number

V5LINKID =0 (only primary link)

V5TS =16

V5CHANID =0

  • CREATION OF V5 COMMUNICATION PATH

>CRV5CMPATH

V5IF = interface number

V5CHANID =0

V5PATHID =0

PATHTYPE =CNT

Now this command is given four times for all the protocols as the pathtype

That is V5PATHID=1 : PATHTYPE =LCNT

V5PATHID=2 : PATHTYPE =BCC

V5PATHID=3 : PATHTYPE =PSTN

This means that all the protocol of V5 will travel on TS 16 of V5CHANID 0,

physically on 0-13-0.

  • PARAMETER TO DISABLE CRC:

>ENTER PDCCHR

The parameter FORMAT in this command should be set as STDFRM to

disable the CRC.

  • CONFIGURATION OF V5 LINK
    After creation of V5link, its status has to be made active by this command.

>CONFV5LINK

V5IF =interface number

V5LINKID =0

STATUS =MBL, ACT;

That means status is first made MBL (like OOS) and then ACT. This

command is run for both the link, forV5LINKID=1 also.

  • DISPLAY/STATUS COMMANDS
    DISPV5IF = displays the data created for interface

DISPV5PORTS = displays the data created for subscriber

STATLTG = status of line trunk group is shown

STATV5PORT = status of subscriber is shown

DISPV5TS =data created for v5 time slot

STATV5LINK = status of v5 link is given (ACT, MBL, NAC, UNA)

EWSD STATUS EQUIVALENT CDOT STATUS

ACT INS-NRM

MBL OOS-OPR

NAC OOS-SUS

UNA OOS-SE

  • CREATION OF AN SUBSCRIBER

>CRSUB

LAC = local area code

DN = directory number

EQN* = equipment no.(10-0-0-1)

COSDAT = V5ACCID-1

CAT = category

LNATT

ORIG1

ORIG2

The fields of equipment no (EQN):

First field = 10 (V5IFID)

Second field =0 (fixed)

Third field = two bits

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