Changing the Attributes of a Channelized E1 Port

This procedure is used to change the attributes of a channelized E1 port using the chg-e1 command. A channelized E1 port is an E1 port whose LINKCLASS value is CHAN, shown in the LINKCLASS column in the rtrv-e1 output. Other actions can be performed on E1 ports. To perform these actions on the E1 ports, perform one of these procedures.

To change the attributes of an unchannelized E1 port - Changing the Attributes of an Unchannelized E1 Port
To make a channel bridged E1 port from a channelized E1 port - Making a Channel Bridged E1 Port from a Channelized E1 Port
To make a non-channel bridged E1 port from a channel bridged E1 port - Making a Non-Channel Bridged E1 Port from a Channel Bridged E1 Port

To change the attributes of a channelized E1 port, these parameters are used with the chg-e1 command.

:loc – The location of the E1 card (card type lime1) that is servicing the E1 signaling link. The location of a channel card (card type limch) cannot be specified for this parameter. The E1 card can be either an E1/T1 MIM, an HC -MIM, or an E5-E1T1 card.

:e1port – The E1 port being changed in this procedure.

:crc4 – Specifies whether or not CRC4 is enabled on the E1 signaling link.

:cas – Specifies whether CAS or CCS is used on the E1 signaling link. CAS is enabled with the cas=on parameter. CCS is enabled with the cas=off parameter. The cas=on parameter cannot be specified for an HC-MIM, or an E5-E1T1 card.

:encode – Specifies the type of encoding or decoding that is used on the E1 signaling link, either HDB3 or AMI. AMI encoding can be specified only for an E1/T1 MIM, an HC-MIM, or an E5-E1T1 card.

:e1tsel – The timing source for the E1 signaling link, master timing (external), slave timing (line), or recovered.

The recovered timing source can be used only with the chanbrdg=on parameter and uses the even numbered member of the bridged-pair as a clock source, ensuring that port in the pair can recover the timing from its partner.

Note:

To use an external high-speed master clock source other than RS-422, TDMs 870-0774-15 or later must be installed in card locations 1114 and 1116, and the TDM Global Timing Interface options must be configured. For more information, see Configuring the Options for the TDM Global Timing Interface.

:si – Specifies the value of the two spare international bits of NFAS data, from 0 to 3.

:sn – Specifies the value of the five spare national bits of NFAS data, from 0 to 31.

The E1 card specified in this procedure must be in the database. This can be verified with the rtrv-e1 command.

If either the crc4, cas, encode, or e1tsel values are being changed, all the signaling links serviced by the E1 card must be taken out of service.

If the signaling link being serviced by the E1 card is using timeslot 16, the cas=on parameter cannot be specified with the chg-e1 command.

Display the existing E1 interfaces in the database using the rtrv-e1 command with no parameters.
```
rlghncxa03w 09-05-19 21:17:04 GMT EAGLE5 41.0.0
      E1                                                   LINK    MINSU
LOC   PORT  CRC4  CAS  ENCODE  E1TSEL    SI  SN  CHANBRDG  CLASS   RATE
1201  2     ON    OFF  HDB3    EXTERNAL  3   5   ------    CHAN    ----
1203  2     OFF   OFF  HDB3    LINE      1   7   ------    CHAN    ----
1211  2     ON    OFF  HDB3    LINE      0   0   ------    CHAN    ----
```
A channelized E1 port is an E1 port whose LINKCLASS value is CHAN.

If there are no channelized E1 ports shown in the rtrv-e1 output, this procedure cannot be performed.
If there are channelized E1 ports shown in the rtrv-e1 output, continue the procedure by performing one of these steps.
- If the crc4, cas, encode, or e1tsel parameters are being changed in this procedure, continue the procedure with 2.
- If the crc4, cas, encode, or e1tsel parameters are not being changed in this procedure, continue the procedure by performing one of these steps.
  - If the E1 port is channel bridged (the entry MASTER is shown in the CHANBRDG column for the odd numbered E1 port in the rtrv-e1 output), or if E1 ports 3 through 8 are assigned to the E1 card, the card is either an HC-MIM or an E5-E1T1 card. Continue the procedure with 7.
  - If the E1 port is not channel bridged, or if E1 ports 3 through 8 are not assigned to the E1 card, continue the procedure with 6 to verify the type of E1 card that the E1 port is assigned to.

Display the timeslots that are serviced by the E1 card containing the E1port that is being changed using the rtrv-e1 command specifying the card location and the e1port value from 1.

For this example, enter this command.

rtrv-e1:loc=1201:e1port=2

rlghncxa03w 09-05-28 09:12:36 GMT EAGLE5 41.0.0

      E1                                                   LINK    MINSU
LOC   PORT  CRC4  CAS  ENCODE  E1TSEL    SI  SN  CHANBRDG  CLASS   RATE
1201  2     ON    OFF  HDB3    EXTERNAL  3   5   ------    CHAN    ----

TS0  (N/A)     TS8   ------    TS16  ------    TS24  ------
TS1  1201,A    TS9   ------    TS17  ------    TS25  ------
TS2  ------    TS10  ------    TS18  ------    TS26  ------
TS3  ------    TS11  ------    TS19  ------    TS27  ------
TS4  ------    TS12  ------    TS20  ------    TS28  ------
TS5  1202,A    TS13  ------    TS21  ------    TS29  ------
TS6  ------    TS14  ------    TS22  ------    TS30  ------
TS7  ------    TS15  ------    TS23  ------    TS31  ------

Display the signaling links that are assigned to the E1 card by entering the rtrv-slk command with the card location specified in 2. For this example, enter this command.

rtrv-slk:loc=1201

rlghncxa03w 09-05-19 21:17:04 GMT EAGLE5 41.0.0
                                   L2T               PCR  PCR   E1   E1
LOC  LINK LSN         SLC TYPE     SET  BPS    ECM   N1   N2    LOC  PORT TS
1201 A    lsn1         13 LIME1    1    56000  BASIC ---  ----- 1201 2    25
1201 B    lsn1         12 LIME1    1    56000  BASIC ---  ----- 1201 1    20

Check the status of the signaling links shown in 3 using the rept-stat-slk command with the card location and signaling link.
For this example, enter these commands.

rept-stat-slk:loc=1201:link=a
```
rlghncxa03w 09-05-23 13:06:25 GMT EAGLE5 41.0.0
SLK     LSN       CLLI        PST          SST       AST
1201,A  lsn1      ----------- IS-NR        Avail     ----
  ALARM STATUS       = No Alarms
  UNAVAIL REASON     = --
  E1 status          = 1201, RCVRY-E1F:FAC-E1 Port 2 available
```
rept-stat-slk:loc=1201:link=b
```
rlghncxa03w 09-05-23 13:06:25 GMT EAGLE5 41.0.0
SLK     LSN       CLLI        PST          SST       AST
1201,B  lsn1      ----------- IS-NR        Avail     ----
  ALARM STATUS       = No Alarms
  UNAVAIL REASON     = --
  E1 status          = 1201, RCVRY-E1F:FAC-E1 Port 1 available
```
If all the signaling links shown in this step are out of service, continue the procedure by performing one of these steps.
- If the E1 port is channel bridged (the entry MASTER is shown in the CHANBRDG column for the odd numbered E1 port in the rtrv-e1 output), or if E1 ports 3 through 8 are assigned to the E1 card, the card is either an HC-MIM or an E5-E1T1 card. Continue the procedure with 7.
- If the E1 port is not channel bridged, or if E1 ports 3 through 8 are not assigned to the E1 card, continue the procedure with 6 to verify the type of E1 card that the E1 port is assigned to.
If any of the signaling links shown in this step are in service, continue the procedure with 5.
Deactivate the in service signaling links shown in 4 using the dact-slk command.
For this example, enter these commands.

dact-slk:loc=1201:link=a

dact-slk:loc=1201:link=b
After the signaling links have been deactivated, continue the procedure by performing one of these steps.
- If the E1 port is channel bridged (the entry MASTER is shown in the CHANBRDG column for the odd numbered E1 port in the rtrv-e1 output), or if E1 ports 3 through 8 are assigned to the E1 card, the card is either an HC-MIM or an E5-E1T1 card. Continue the procedure with 7.
- If the E1 port is not channel bridged, or if E1 ports 3 through 8 are not assigned to the E1 card, continue the procedure with 6 to verify the type of E1 card that the E1 port is assigned to.

Display the LIME1 cards in the database by entering this command.

rtrv-stp:type=lime1

rlghncxa03w 09-05-30 11:07:17 EST  EAGLE 41.0.0

Card  Part Number  Rev  Serial Number  Type     DB    APPL         GPL Version
----  -----------  ---  -------------  ----     --    ----         -----------

1201  870-2671-02  C    10145689323    LIME1    512M  SS7ANSI      126-034-000
1203  870-1873-01  C    10345690569    LIME1    512M  SS7ANSI      126-034-000
1211  870-1873-01  C    10346790570    LIME1    512M  SS7ANSI      126-034-000

Command Completed.

The part numbers and the card types of the E1 cards are shown in Table A-4.

Change the E1 port using the chg-e1 command and the parameter combinations shown in Table A-13 , based on the type of E1 card being used.

Table A-13 E1 Interface Parameter Combinations

E1/T1MIM	Non-Channel Bridged E1 Ports - HC-MIM or E5-E1T1 Card	Channel Bridged E1 Ports - HC-MIM or E5-E1T1 Card
Mandatory Parameters
:loc=location of the E1 card	:loc=location of the E1 card	:loc=location of the E1 card
:e1port=E1 port being changed, either 1 or 2	:e1port=E1 port being changed, either 1, 2, 3, 4, 5, 6, 7, or 8	:e1port=E1 port being changed, either 1, 3, 5, or 7
Optional Parameters
:cas=on, off (See the Note)	:cas=off	:cas=off
:crc4=on, off	:crc4=on, off	:crc4=on, off
:encode=ami, hdb3	:encode=ami, hdb3	:encode=ami, hdb3
:si=0 - 3	:si=0 - 3	:si=0 - 3
:sn=0 - 31	:sn=0 - 31	:sn=0 - 31
:e1tsel=line, external	:e1tsel=line, external	:e1tsel=external, recovered
Note: If timeslot 16 is being used for the signaling link that is assigned to the E1 port, the `cas` value must be `off`.

For this example, enter this command.

chg-e1:loc=1201:e1port=2:crc4=off:encode=hdb3:si=1:sn=9

Verify the changes using the rtrv-e1 command specifying the card location and the e1port value specified in 7.

For this example, enter this command.

rtrv-e1:loc=1201:e1port=2

rlghncxa03w 09-05-28 09:12:36 GMT EAGLE5 41.0.0

      E1                                                   LINK    MINSU
LOC   PORT  CRC4  CAS  ENCODE  E1TSEL    SI  SN  CHANBRDG  CLASS   RATE
1201  2     OFF   OFF  HDB3    EXTERNAL  1   9   ------    CHAN    ----

TS0  (N/A)     TS8   ------    TS16  ------    TS24  ------
TS1  1201,A    TS9   ------    TS17  ------    TS25  ------
TS2  ------    TS10  ------    TS18  ------    TS26  ------
TS3  ------    TS11  ------    TS19  ------    TS27  ------
TS4  ------    TS12  ------    TS20  ------    TS28  ------
TS5  1202,A    TS13  ------    TS21  ------    TS29  ------
TS6  ------    TS14  ------    TS22  ------    TS30  ------
TS7  ------    TS15  ------    TS23  ------    TS31  ------

If the signaling links were not deactivated in 5, continue the procedure with 10.

If the signaling links were deactivated in 5, continue the procedure with 9.

Activate the signaling links that were deactivated in 5 using the act-slk command.
For this example, enter these commands.

act-slk:loc=1201:link=a

act-slk:loc=1201:link=b

When each of these commands have successfully completed, this message should appear.
```
rlghncxa03w 09-05-07 08:41:12 GMT  EAGLE5 41.0.0
Activate Link message sent to card
```

Back up the new changes using the chg-db:action=backup:dest=fixed command.

These messages should appear, the active Maintenance and Administration Subsystem Processor (MASP) appears first.

BACKUP (FIXED) : MASP A - Backup starts on active MASP.
BACKUP (FIXED) : MASP A - Backup on active MASP to fixed disk complete.
BACKUP (FIXED) : MASP A - Backup starts on standby MASP.
BACKUP (FIXED) : MASP A - Backup on standby MASP to fixed disk complete.

Figure A-10 Changing the Attributes of a Channelized E1 Port

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