In this section:

Note

The following section is only applicable to the DSC 8000, the DSC SWe (on MA-RMS), the Signaling Platform 2000 (SP2000), and the virtual SP2000 (on MA-RMS).

As described in Area A (refer to Options for Provisioning Traffic on the AMC308, Options for Provisioning Traffic on the AMC348, or Options for Provisioning Traffic on the PCE382), configuring LSL Channels comprises the following tasks:

Creating an LSL Channel

Caution

Deleting an LSL Channel is service affecting if this channel is used by MTP3 and is in service.

To create an LSL Channel

  1. Log onto the WebUI.
             
  2. From the Main Menu, click the required I/O card on the Hardware image.
       
  3. Click the required I/O card.
               
  4. Click the required LSL Channel.
           

        

  5. Under LSL Channel, click Create.
     

  6. Enter the channel number in the Channel Number text box.
     

  7. Click Create.

Tip

To delete an LSL Channel, click Delete in the same line that the LSL Channel you want to delete appears.

After creating an LSL Channel, you must configure this channel (see To map an LSL Channel to a port and a timeslot).

Mapping an LSL Channel to a Timeslot and a Port

The Ribbon Signaling Systems support a maximum of 31 (E1 120 Ohm), 24 (T1 100 Ohm), and 24 (J1 110 Ohm) timeslots on each physical port.

Note for SP2000

Four splitter cables (ACC308-12387), included with the Signaling Platform 2000 for each AMC308, provide the ability to connect two T1/E1/J1 lines to one RJ48C port on the AMC308.

Four RJ-48C connectors provide eight T1/E1/J1 interfaces on the AMC308 faceplate using four splitter cables. These ports are permanently numbered 0 through 7. You can terminate up to 126 incoming signaling links on each AMC308.

To terminate the incoming signaling link, you must map an Signaling Channel, a Ribbon internal value, to a port and timeslot combination, where the port is an SS7 I/O port on the I/O card that has the physical T1, E1, or J1 signaling link connected, and the timeslot is the timeslot on the incoming (T1, E1, or J1) signaling link. You can have multiple Signaling Channels terminating signaling links from the same port, but each must be mapped to a different timeslot.

Note

For information about transparently passing through the timeslots that are not being used for SS7 signaling so that they can be processed by other node equipment, see Configuring Local Pass Through on the I/O Cards.

The default Baud rate for the LSL Channel is 56 Kbps (T1, E1, and J1). However, you can change the rate if required (see To map an LSL Channel to a port and a timeslot). In additional to the DS0_64K and DS0A_56K, the AMC348 and the PCE382 cards’ software supports 48Kbps TDM channels (over T1, E1 or J1). These variants are

  • BAUD_TTC_48K (most commonly used) has the least and most significant bits fixed

  • BAUD_48K has the two least significant bits fixed

  • BAUD_48K_REV has the two most significant bits fixed

The following figure shows a connected signaling link from the SS7 network. Timeslot 4 on the E1 port is mapped to Signaling Channel 6. Timeslot 4 should already be designated for carrying signaling.

Note

The following figure shows an AMC348, but is also applicable to the AMC308 and PCE382.

The PCE382 only goes up to 124 Signaling Channels.

Timeslot 4 on E1 Port is Mapped to LSL Channel 6 for SS7 Signaling (Example)

To map an LSL Channel to a port and a timeslot

  1. From the Main Menu, click the I/O card on the Hardware image.

  2. Click the required I/O card.

  3. Click the required LSL Channel.

  4. Click the LSL Channel that you want to configure.
         

          
  5. Do the following:

    1. In the CLLI field, enter the required Common Language Location Identifier (CLLI) number.

    2. In the Port drop-down list, select the port that is connected with the physical signaling link.

    3. In the Timeslot field, enter the number of the timeslot that carries the SS7 signaling on the selected port.

    4. Using the Baud Rate drop-down list, select the required value.

    5. Using the Loopback Mode drop-down list, select the ENABLED or DISABLED option as required.

  6. Click Continue.

 

To complete the Signaling Channel’s path from the SS7 network through the Ribbon Signaling Systems, you must associate the Signaling Channel to an SS7 link created at MTP3. You perform this final mapping task when you are creating a new SS7 link. When you do this step, you must reference the Signaling Channel number. For information about associating an SS7 link at MTP3 to an Signaling Channel, refer to Configuring Linksets and Links.

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