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 the 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
- Equip PHCs in the slots in which SHM cards 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 a card is to be Equipped.
- Now Create Access Network Interface (AI ) by using command cre-ai with following parameters;
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 defined 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 the 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 the 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. The following are the commands and their details that are used in EWSD exchange. The patch used for V11 version is CJ144 and 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 a 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 the 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 a 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 the 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
the 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 the subscriber
STATLTG = status of the line trunk group is shown
STATV5PORT = status of the 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
Fourth field = two bits (0-99)
If the fourth bit is 0 then start L3ADDR at AN side will be 0.the range of fourth bit goes up to 99.if L3ADDR is200 then EQN no. will be 10-0-2-00. if L3ADDR is 489 then its EQN no. will be 10-0-4-89. Also, note that the second field of parameter COSDAT should be the same as L3ADDR of equipment no. if EQN no is 10-0-5-43 then its COSDAT will be V5ACCID-543. Also, note that whenever a subscriber is created its status goes to PLA. This status has to be changed by the following command.
CONFV5PORT
By this command, the status of the subscriber is changed to MBL and then to ACT. Check the status of the port which is made active by command STATV5PORT. Its status should be DIDLE.
- 5ESS AS LOCAL EXCHANGE
The testing of AN RAX is done with 5ESS having software version 13.1 and patch S48.- CREATION OF AN INTERFACE
Form 4.5 is used for the creation of V5.2 interface. The command used to display the parameters of the interface is “ rddb-v5itf:v5identifier=100: “ here 100 is set as interface ID in AN-RAX.
- CREATION OF AN INTERFACE
V5 IDENTIFIER: 00100
V5 EXTERNAL IDENTIFIER: 100
V5 VERSION : V5.2
V5 PROFILE NAME : CDOT-AN
V5 ACTIVE VARIANT : 0
V5 NEXT VARIANT : 0
PSIG LCC : 0
BC USAGE : 00000000000000000000000000000000000000000
L1 RECOVERY MODE : DELAYED
REMARKS : CDOT-AN
NEW SUB PROV CADN : Y
MAXIMUM ALRM LEVEL : CRITICAL
LINKS
HOST FACILITY ID TYP C1LSCN C1LCC C2LCN C2LCC C3LCN C3LCC
- D 011000190 0 P 000120 0 ——– —- —— ——
- D 011000191 1 S 000124 —– —— —– —— —–
NOTE :
V5 IDENTIFIER parameter set above should be the same as the interface ID set at AN. V5 ACTIVE VARIANT and V5 NEXT VARIANT should be the same as variant ID at AN side. FACILITY = 011000190, here 11 is SM number, 0 is DLTU, 19 is DFY, 0 is facility number. The ID set as 0 and 1 for primary (P) and secondary (S) respectively, should be the same as logical ID set at AN side for the primary and secondary link. In the above example ID for the primary link is 0 and for the secondry link is 1.
- CREATION OF V5 LINK
Form 9.2 is used for data creation of V5 links. The name of this form is EPDLT, parameters for the same are as follows :
SM : 11
DLTU : 0
DFY : 19
FAC IND : 3
TYPE : V5
FACO MODE : CCS
Note: CRC should be deactivated at the LE side. It can be achieved by Modifying the parameters “ESCM=CMFAS” in form 9.10. Make sure that this Parameter should not be CMCRC.
- MAINTANANCE COMMANDS FOR V5 LINKS
♦To check the status of links :
< 1124,0,11
here 0 is the dltu number and 11 is the SM number.
♦To check the links used in V5 interface:
<oplst-v5lk:v5id=100;
LINK ID LINKTYPE FACILITY STATUS
0 PRIM FAS=11-0-19-0 IS
Chapter 9.
122 C-DOT AN-RAX
1 SEC FAS=11-0-19-1 IS
♦To check the status of interface:
<lst-v5cc:v5id=100;
LINKID CC ACTIVE/STANDBY LCC TIME SLOT STATUS
0 C1 STANDBY DEN=11-0-19-16 OPERATIONAL
1 C1 ACTIVE 0 DEN=11-0-19-48 OPERATIONAL
♦To make the link out of service:
<rmv-fac:11-0-19-0;
♦To make the link inservice:
<rst-fac:11-0-19-0;
♦To check the status of interface:
<opst-v5if:id=100;
♦To check the datacreation for subscriber;
- CREATION OF AN SUBSCRIBER
<rddb-sbldn:dirnr=7911133
DIR NR : 7911133
QUANTITY :……….
LN EQ NR : V 00100P00000
(In case of 5ESS start L3 Addr = 1)
Here, in LN EQ NR ,100 is interface ID and 00000 is the L3 ADDR. The LN EQ NR for next L3 ADDR will be V 00100P00001. All other parametrs of this command will be as per LE requirement. To check the status of AN subscriber :
- MAINTENANCE COMMANDS FOR AN SUBSCRIBER
<opst-sub:7911133;
The normal status is “ IS AUTO “
To make the subscriber out of service :
<rmv-sub:7911133;
To make the subscriber in service:
<rst-sub:7911133;
- OCB AS LOCAL EXCHANGE
The testing of AN interface has been done with OCB exchange having software version R23 and R24.- V52 UR Creation
Command: V52CR
Parameters: AFUR, AF, ID, VERS, VAR, TYPM, SEEF
♦AFUR – Functional address for V52 connection unit (internal logical
identification) [used ‘200’ Jabalpur]
♦AF – Functional address of AN (ANAi/ANBi)
♦*ID – Interface identifier between 0 & 16777215) [INTERFACE ID]
♦VERS: AN version (0 to 255). This is to adapt the management of a
V5.2 interface, in the OCB283, to the AN network. [Recommended
value for C-DOT is ‘4’, default is ‘0’]
♦*VAR: VAR: Interface variant, defined jointly, which characterizes the
interface configuration. (0 to 127, Default is 0). [VARIENT ID.]
♦TYPM: Type (capacity) of AN.
♦TYPM=’V52AN01′- 1024 subscribers [FOR AN-RAX]
♦TYPM=’V52AN02′ – 4096 subscribers
♦TYPM=’V52AN03′ – 8192 subscribers
SEEF: Call completion ratio threshold for alarm generation [PUT ’25’]
AT IDGAH OCB-283 VER R24
AFUR=052; AF=ANA01; TYPM=V52AN01; ID=3; VAR=0; VERS=4; SEEF25
-
PCM Creation
Command: MICCR
Parameters: AFLR, AMET, ID, TYMIC
♦AFLR: Functional address in the form UR-PCM.
♦AMET: Physical address of the PCM in the SMT
♦TYMIC: MIC2G (Default value) for SMT2G.
AT IDGAH OCB-283 VER R24
FOR PCM’0′ AFLR-52-0; AMET=2-5-3; ID=0; TYMIC=MIC2G
FOR PCM’1′ AFLR=52-1; AMET=1-18-1; ID=1; TYMIC=MIC2G
Note: The CRC should be deactivated. This can be checked by displaying the
parameter correction “CRC” through command “Q2MCMIL”.
AFLR = <>
CRC = NACT
- Creation of Communication Channel
Command: CCHCR
Parameters: AFCC, AFVT, GP, ACT.
♦*AFCC: Communication Channel number in the form of UR no-CC no.
♦*AFVT: UR no.-LR no.-TS no. (Value=say, 100-0-16)
♦*GP: Protection group number. (1 or 2)
♦*ACT: Type of CC (YES or NO)
AT IDGAH OCB-283 VER R24
FOR PCM’0′ ACT=YES; AFCC=52-0; AFVT=52-0-16; GP=1
FOR PCM’1′ ACT=NO; AFCC=52-1; AFVT=52-1-16; GP=1
- Creation of Communication Path
Command: CPHCR
Parameters: CP, AFCC, TYCP
♦*CP: Communication path number. (0 and 127)
♦*AFCC: Number of the associated CC.
♦TYCP: Type of CP. (PSTN for analog lines and ISDNS for digital lines.)
(UR can be made in service by TELEMO at the end of this creation).
AT IDGAH OCB-283 VER R24
AFCC=52-0;CP=0; TYCP=PSTN
- Creation of Subscriber
Command: ABOCR
Parameters: ND, NE, TY, CAT, NAP, CP
♦*ND: Directory Number
♦NE: Equipment no. in the form of UR-REG-BRO.
♦TY: Type of line. value V52 is mandatory.
♦CAT: Category of the line.
♦*NAP: Number of access port defined jointly in the LE and the AN.
The value is in the range from 0 to 8175 for ISDN lines and 0 to 32767
for analog lines.
♦*CP: CP to which the line is attached. (digital accesses only).
AT IDGAH OCB-283 VER R24
ND=3592000; TY=V52+KLA+SR1; CAT=IAI; AFUR=52; NAP=0
ND=3592001; TY=V52+KLA+SR1; CAT=IAI; AFUR=52; NAP=1
126 C-DOT AN-RAX
Appendix – A
Glossary
AN : Access Network
CAS : Channel Associated Signalling
CCS : Common Channel Signalling
CEPT : European Conference of Posts and Telecommunications
Administration
CP : Call Processing
DLE : Data Link Entity
DMA : Direct Memory Access
DTMF : Dual Tone Multi-Frequency
FSM : Finite State Machine
HDLC : High level Data Link Control
LE : Local Exchange
LTE : Line Termination Equipment
MAX : Main Automatic Exchange
ARC : AN-RAX Controller Card
ARI : AN-RAX Interface Card
MDF : Main Distribution Frame
LCC/CCM/
CCB
: Subscriber Line Card
MMI : Man Machine Interface
PSU : Power Supply Unit
RTC : RAX Terminal Tester Card
PCM : Pulse Code Modulation
POTS : Plain Old Telephone Services
PSTN : Public Switched Telephone Network
AN-RAX : Access Network – RAX
RSU : Remote Switch Unit
V5 : Standard interface between LE and AN
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