Making a Channel Bridged T1 Port from a Channelized T1 Port

This procedure is used to make a channel bridged T1 port from a channelized T1 port that is not channel bridged using the chg-t1 command. A channelized T1 port is a T1 port whose LINKCLASS value is CHAN, shown in the LINKCLASS column in the rtrv-t1 output. A non-channel bridged T1 port is an odd numbered T1 port that contains dashes in the CHANBRDG column in the rtrv-t1 output. Other actions can be performed on T1 ports. To perform these actions on the T1 ports, perform one of these procedures.

To change the attributes of a channelized T1 port - Changing the Attributes of a Channelized T1 Port
To change the attributes of an unchannelized T1 port - Changing the Attributes of an Unchannelized T1 Port
To make a non-channel bridged T1 port from a channel bridged T1 port - Making a Non-Channel Bridged T1 Port from a Channel Bridged T1 Port

To make a channel bridged T1 port from a channelized T1 port, these parameters are used with the chg-t1 command.

:loc – The location of the T1 card (card type limt1) that contains the odd numbered channelized T1 port. The location of a channel card (card type limch) cannot be specified for this parameter. The T1 card can be either an HC-MIM or an E5-E1T1 card.

:t1port – The T1 port being changed in this procedure. Only the odd numbered T1 ports, 1, 3, 5, or 7, can be specified for a channel bridged T1 port.

:encode – Specifies the type of encoding or decoding that is used on the T1 signaling link, either B8ZS or AMI.

:t1tsel – The timing source for the T1 signaling link, master (external) 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.

:framing – Specifies the framing format to be used on the TI signaling link, either sf or esf. The default value is sf (framing=sf).

:ll – The length of the cable, in feet, used for the T1 signaling link. The value of the ll parameter is from 0 to 655.

:chanbrdg – Specifies whether or not the odd numbered T1 port specified in this procedure is channel bridged to its adjacent even numbered T1 port. Table B-15 shows the T1 ports that can be specified with the chanbrdg=on parameter and the even-numbered T1 ports that are bridged to the odd numbered T1 port.

Table B-15 Channel Bridging Ports

Odd Numbered T1 Port	Even Numbered Bridged T1 Port
1	2
3	4
5	6
7	8

:force=yes – required when the even numbered T1 port being channel bridged is provisioned in the database before this procedure is performed.

The T1 card specified in this procedure must be in the database. This can be verified with the rtrv-t1 command.

If either the encode, t1tsel, framing, or ll values are being changed, all the signaling links serviced by the T1 card must be taken out of service.

Display the existing T1 ports in the database using the rtrv-t1 command with no parameters.
```
rlghncxa03w 09-05-19 21:17:04 GMT EAGLE5 41.0.0

      T1                                              LINK    MINS
LOC   PORT  ENCODE  T1TSEL    FRAMING  LL   CHANBRDG  CLASS   RATE
1201  1     B8ZS    EXTERNAL  SF       133  ------    CHAN    ----
1201  2     B8ZS    EXTERNAL  SF       133  ------    CHAN    ----
1203  2     B8ZS    LINE      SF       133  ------    CHAN    ----
1211  2     B8ZS    LINE      SF       133  ------    CHAN    ----
```
A channelized T1 port is an T1 port whose LINKCLASS value is CHAN.

If there are no odd numbered channelized T1 ports that are not channel bridged shown in the rtrv-t1 output, this procedure cannot be performed.
If odd numbered channelized T1 ports that are not channel bridged are shown in the rtrv-t1 output, continue the procedure by performing one of these steps.
- If the T1 card contains channel bridged T1 ports, or contains T1 ports 3 through 8, continue the procedure with by performing one of these steps.
  - If the encode, t1tsel, framing, or ll parameters are not being changed in this procedure, continue the procedure by performing one of these steps.
    If T1 cards are shown in the rtrv-t1 output in 1 that are on the same shelf as the card that contains the T1 port that is being changed, and these cards have T1 ports 3 through 8 provisioned, contain channel bridged T1 ports, or unchannelized T1 ports, continue the procedure by performing one of these steps.
    If the adjacent T1 port is provisioned (see Table B-15), continue the procedure with 11.
    
    If the adjacent T1 port is not provisioned, continue the procedure with 12.
    
    If T1 cards are not shown in the rtrv-t1 output in 1 that are on the same shelf as the card that will contain the T1 port that is being added, continue the procedure with 7.
    
    If T1 cards are shown in the rtrv-t1 output in 1 that are on the same shelf as the card that contains the T1 port that is being changed, and these cards do not have T1 ports 3 through 8 provisioned, do not contain channel bridged T1 ports, or do not have unchannelized T1 ports, continue the procedure with 7.
  - If the encode, t1tsel, framing, or ll parameters are being changed in this procedure, continue the procedure with 3.
- If the T1 card does not contain channel bridged T1 ports, or does not contain T1 ports 3 through 8, continue the procedure with 2.
Display the LIMT1 cards in the database by entering this command.
rtrv-stp:type=limt1
```
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    LIMT1    512M  SS7ANSI      126-034-000
1203  870-1873-01  C    10345690569    LIMT1    512M  SS7ANSI      126-034-000
1211  870-1873-01  C    10346790570    LIMT1    512M  SS7ANSI      126-034-000

Command Completed.
```
The part numbers and the card types of the T1 cards are shown in Table B-4.

If the T1 card is an E1/T1 MIM, this card cannot be used in this procedure, Choose another T1 port on another HC-MIM or E5-E1t1 card and repeat this procedure from 1. If no HC-MIMs or E5-E1T1 cards are present in the EAGLE, this procedure cannot be performed.
If the T1 card is either an HC-MIM card or an E5-E1T1 card, continue the procedure by performing one of these steps.
- If the encode, t1tsel, framing, or ll parameters are not being changed in this procedure, continue the procedure by performing one of these steps.
  - If T1 cards are shown in the rtrv-t1 output in 1 that are on the same shelf as the card that contains the T1 port that is being changed, and these cards have T1 ports 3 through 8 provisioned, contain channel bridged T1 ports, or unchannelized T1 ports, continue the procedure by performing one of these steps.
    If the adjacent T1 port is provisioned (see Table B-15), continue the procedure with 11.
    
    If the adjacent T1 port is not provisioned, continue the procedure with 12.
  - If T1 cards are not shown in the rtrv-t1 output in 1 that are on the same shelf as the card that contains the T1 port that is being changed, continue the procedure with 7.
  - If T1 cards are shown in the rtrv-t1 output in 1 that are on the same shelf as the card that contains the T1 port that is being changed, and these cards do not have T1 ports 3 through 8 provisioned, do not contain channel bridged T1 ports, or do not have unchannelized T1 ports, continue the procedure with 7.
- If the encode, t1tsel, framing, or ll parameters are being changed in this procedure, continue the procedure with 3.

Display the timeslots that are serviced by the T1 card containing the T1 port being changed using the rtrv-t1 command specifying the card location and the t1port value from 1.

For this example, enter this command.

rtrv-t1:loc=1201:t1port=1

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

      T1                                              LINK    MINS
LOC   PORT  ENCODE  T1TSEL    FRAMING  LL   CHANBRDG  CLASS   RATE
1201  1     B8ZS    EXTERNAL  SF       133  ------    CHAN    ----

TS1  1201,A     TS9  -------    TS17 -------
TS2  -------    TS10 -------    TS18 -------
TS3  -------    TS11 -------    TS19 -------
TS4  -------    TS12 -------    TS20 -------
TS5  1202,A     TS13 -------    TS21 -------
TS6  -------    TS14 -------    TS22 -------
TS7  -------    TS15 -------    TS23 -------
TS8  -------    TS16 -------    TS24 -------

Display the signaling links that are assigned to the T1 card by entering the rtrv-slk command with the card location specified in 3. 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 LIMT1    1    56000  BASIC ---  ----- 1201 2    25
1201 B    lsn1         12 LIMT1    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     = --
  T1 status          = 1201, RCVRY-T1F:FAC-T1 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     = --
  T1 status          = 1201, RCVRY-T1F:FAC-T1 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 T1 cards are shown in the rtrv-t1 output in 1 that are on the same shelf as the card that contains the T1 port that is being changed, and these cards have T1 ports 3 through 8 provisioned, contain channel bridged T1 ports, or unchannelized T1 ports, continue the procedure by performing one of these steps.
  - If the adjacent T1 port is provisioned (see Table B-15), continue the procedure with 11.
  - If the adjacent T1 port is not provisioned, continue the procedure with 12.
- If T1 cards are not shown in the rtrv-t1 output in 1 that are on the same shelf as the card that will contain the T1 port that is being added, continue the procedure with 7.
- If T1 cards are shown in the rtrv-t1 output in 1 that are on the same shelf as the card that contains the T1 port that is being changed, and these cards do not have T1 ports 3 through 8 provisioned, do not contain channel bridged T1 ports, or do not have unchannelized T1 ports, continue the procedure with 7.
If any of the signaling links shown in this step are in service, continue the procedure with 6.
Deactivate the signaling links shown in 5 using the dact-slk command.
For this example, enter these commands.

dact-slk:loc=1201:link=a

dact-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
Deactivate Link message sent to card
```
Continue the procedure by performing one of these steps.
- If T1 cards are shown in the rtrv-t1 output in 1 that are on the same shelf as the card that contains the T1 port that is being changed, and these cards have T1 ports 3 through 8 provisioned, contain channel bridged T1 ports, or unchannelized T1 ports, continue the procedure by performing one of these steps.
  - If the adjacent T1 port is provisioned (see Table B-15), continue the procedure with 11.
  - If the adjacent T1 port is not provisioned, continue the procedure with 12.
- If T1 cards are not shown in the rtrv-t1 output in 1 that are on the same shelf as the card that will contain the T1 port that is being added, continue the procedure with 7.
- If T1 cards are shown in the rtrv-t1 output in 1 that are on the same shelf as the card that contains the T1 port that is being changed, and these cards do not have T1 ports 3 through 8 provisioned, do not contain channel bridged T1 ports, or do not have unchannelized T1 ports, continue the procedure with 7.
Verify that HIPR2 cards are installed in card locations 9 and 10 in the shelf containing the HC MIM or E5-E1T1 card that will contain the T1 port being changed in this procedure by entering this command.
rept-stat-gpl:gpl=hipr2

This is an example of the possible output.
```
rlghncxa03w 09-07-05 08:12:53 GMT  41.1.0
GPL        CARD      RUNNING            APPROVED      TRIAL
HIPR2      1109      126-002-000        126-002-000   126-003-000
HIPR2      1110      126-002-000        126-002-000   126-003-000
HIPR2      1209      126-002-000        126-002-000   126-003-000
HIPR2      1210      126-002-000        126-002-000   126-003-000
HIPR2      1309      126-002-000        126-002-000   126-003-000
HIPR2      1310      126-002-000        126-002-000   126-003-000
HIPR2      2109      126-002-000        126-002-000   126-003-000
HIPR2      2110      126-002-000        126-002-000   126-003-000
Command Completed
```
If HIPR2 cards are installed in the shelf containing the HC-MIM or E5-E1T1 card, continue the procedure by performing one of these steps.
- If the card is an E5-E1T1 card, continue the procedure by performing one of these steps.
  - If the adjacent T1 port is provisioned (see Table B-15), continue the procedure with 11.
  - If the adjacent T1 port is not provisioned, continue the procedure with 12.
- If the card is an HC-MIM, continue the procedure with 8.
If HIPR2 cards are not installed on the shelf containing the HC-MIM or E5-E1T1 card, go to Installation Guide and install the HIPR2 cards. Once the HIPR2 cards have been installed, continue the procedure by performing one of these steps.
- If the card is an E5-E1T1 card, continue the procedure by performing one of these steps.
  - If the adjacent T1 port is provisioned (see Table B-15), continue the procedure with 11.
  - If the adjacent T1 port is not provisioned, continue the procedure with 12.
- If the card is an HC-MIM, continue the procedure with 8.
Verify whether or not that the Fan feature is on, by entering the rtrv-feat command. If the Fan feature is on, the entry FAN = on appears in the rtrv-feat command output.
Note:
The rtrv-feat command output contains other fields that are not used by this procedure. If you wish to see all the fields displayed by the rtrv-feat command, see the rtrv-feat command description in Commands User's Guide.
If the Fan feature is on, continue the procedure by performing one of these steps.
- If the adjacent T1 port is provisioned (see Table B-15), continue the procedure with 11.
- If the adjacent T1 port is not provisioned, continue the procedure with 12.
If the Fan feature is off, continue the procedure with Oracle.
Turn the Fan feature on by entering this command.
chg-feat:fan=on

Note:
Once the Fan feature is turned on with the chg-feat command, it cannot be turned off.
The Fan feature must be purchased before you turn this feature on with the chg-feat command. If you are not sure if you have purchased the Fan feature, contact your Sales Representative or Account Representative.

When the chg-feat has successfully completed, this message appears.
```
rlghncxa03w 09-05-28 11:43:04 GMT EAGLE5 41.0.0
CHG-FEAT: MASP A - COMPLTD
```
The shelf containing the HC-MIM being added in this procedure must have fans installed. Verify whether or not fans are installed on the shelf.
If the fans are not installed on the shelf containing the HC-MIM, go to Installation Guide and install the fans.
After the fans have been installed and tested, or if the fans were already installed. continue the procedure by performing one of these steps.
- If the adjacent T1 port is provisioned (see Table B-15), continue the procedure with 11.
- If the adjacent T1 port is not provisioned, continue the procedure with 12.

Display the T1 signaling links in the database by entering this command.

rtrv-slk:class=t1

rlghncxa03w 09-05-19 21:17:04 GMT EAGLE5 41.0.0
                                   L2T               PCR  PCR   T1   T1
LOC  LINK LSN         SLC TYPE     SET  BPS    ECM   N1   N2    LOC  PORT TS
1201 A    lsn1         13 LIMT1    1    56000  BASIC ---  ----- 1201 2    25
1201 B    lsn1         12 LIMT1    1    56000  BASIC ---  ----- 1201 1    20
1202 A    lsn1         0  LIMCH    1    56000  BASIC ---  ----- 1201 1    5
1202 B    lsn1         8  LIMCH    1    56000  BASIC ---  ----- 1201 1    1
1203 A1   lsn1         4  LIMT1    1    56000  BASIC ---  ----- 1203 2    20
1203 B1   lsn1         9  LIMT1    1    56000  BASIC ---  ----- 1203 1    2
1204 A2   lsn1         5  LIMCH    1    56000  BASIC ---  ----- 1203 1    21
1204 A3   lsn1         6  LIMCH    1    56000  BASIC ---  ----- 1203 1    22
1211 A    lsn1         14 LIMT1    1    56000  BASIC ---  ----- 1211 1    7
1212 A    lsn1         10 LIMCH    1    56000  BASIC ---  ----- 1211 1    28
1212 B    lsn1         11 LIMCH    1    56000  BASIC ---  ----- 1211 1    25
1213 A4   lsn1         1  LIMT1    1    56000  BASIC ---  ----- 1213 1    17
1213 A5   lsn1         7  LIMT1    1    56000  BASIC ---  ----- 1213 5    23
1213 B5   lsn1         2  LIMT1    1    56000  BASIC ---  ----- 1213 1    24
1213 A6   lsn1         3  LIMT1    1    56000  BASIC ---  ----- 1213 5    19

If an even numbered T1 port is to be channel bridged, and that T1 port is assigned to signaling links, these signaling links must be removed before the T1 port can be channel bridged. Perform Removing an SS7 Signaling Link to remove these signaling links. After the signaling links have been removed, continue the procedure with 12.

If the even numbered T1 port to be channel bridged is not assigned to signaling links, continue the procedure with 12.

Change the T1 port using the chg-t1 command and the parameter combinations shown in Table B-16.

Table B-16 Channel Bridged T1 Port Parameter Combinations

Mandatory Parameters

:loc=location of the T1 card

:t1port=T1 port being changed, either 1, 3, 5, or 7

:chanbrdg=on

Optional Parameters

:encode=ami, b8zs

:t1tsel=external, recovered (See Note 1)

:framing=sf, esf

:ll=0 - 655

:force=yes (See Note 2)

Notes:

1. The t1tsel value must be either external or recovered. If the current t1tsel parameter value is line, the t1tselparameter value for the T1 port being channel bridged must be changed.

2. The force=yes parameter must be used when the even numbered port being channel bridged is shown in the rtrv-t1 output in 1. If the even numbered port being channel bridged is not shown in the rtrv-t1 output in 1, the force=yes parameter cannot be used.

For this example, enter this command.

chg-t1:loc=1201:t1port=1:encode=ami:t1tsel=recovered:framing=esf:ll=300:chanbrdg=on

Verify the changes using the rtrv-t1 command specifying the card location and the t1port value specified in 12.

For this example, enter this command.

rtrv-t1:loc=1201:t1port=1

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

      T1                                              LINK    MINS
LOC   PORT  ENCODE  T1TSEL    FRAMING  LL   CHANBRDG  CLASS   RATE
1201  1     AMI     RECOVERED ESF      300  MASTER    CHAN    ----

TS1  1201,A     TS9  -------    TS17 -------
TS2  -------    TS10 -------    TS18 -------
TS3  -------    TS11 -------    TS19 -------
TS4  -------    TS12 -------    TS20 -------
TS5  1202,A     TS13 -------    TS21 -------
TS6  -------    TS14 -------    TS22 -------
TS7  -------    TS15 -------    TS23 -------
TS8  -------    TS16 -------    TS24 -------

If the signaling links were not deactivated in 6, continue the procedure with 15.

If the signaling links were deactivated in 6, continue the procedure with 14.

Activate the signaling links that were deactivated in 6 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 B-12 Making a Channel Bridged T1 Port from a Channelized T1 Port

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