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Configuring the DS3 Card

This procedure describes configuring the DS3 card.

Before you begin

You must have a node view window open in configuration mode. You must add a DS3 card to a node. See Adding Cards to a Node.

Information Source

Please refer to the DS3 information contained in the SwitchKit user guides and the Developer’s Guide: Line Cards.

Configuring the DS3 Card

The following steps explain the DS3 card configuration.

You can have up to three active DS3 cards and one redundant DS3 card in your CSP. The three active cards give you 84 spans. The last four spans can be configured for SS7 signaling links but not for voice Circuit Identification Codes (CICs). At the end of this procedure, see more information about SS7 CIC Traffic Over the DS3 Line Card.

1 Right-click the DS3 card in the node view and select DS3 Configuration from the menu.

The DS3 Configure dialog box opens:

2 From the drop-down list select, M13 or CBIT, and then click OK.

3 To configure spans on the DS3 card configuration dialog box, do one of the following:

• Select the DS3 card in the node view. Go to the Configuration menu and select Card/Span Configuration.

• Right-click the DS3 card in the node view and select Span Configuration from the menu.

• Double-click the DS3 card in the node view.

The Configure DS3 dialog box opens. The configuration data shown in the screen shot on the next page is example data.

4 To configure the spans, highlight the range of spans you want to configure.

5 Right-click in the Span Configuration column and select Span Format Configuration from the menu. This opens the following dialog box.

6 Specify the Framing, Signaling Method, Line Length, and Line Coding Method.

7 Click OK to close the dialog box. Your span configuration is now displayed in the DS3 Card configuration table.

8 Click OK to close the DS3 card configuration dialog box.

Note

Configuration changes are not sent to the CSP until you select the menu: Configuration®Configure Through SwitchMgr ®Send Only Modified Configuration To Switch.

SS7 CI C Traffic Over the DS3 Line Card

The DS3 line cards support SS7 CIC traffic. Under normal operation, a DS3 line card can handle 28 spans, and a CSP chassis can support up to three DS3 line cards. If, however, you wish to support SS7 CIC traffic on all three line cards, you must reconfigure one of the DS3 line cards to 24 spans using DIP switch 4 and 6. The table below shows what the DIP Switch settings are.See the next table.

DIP Switch | Setting | Spans usable for CIC
--- | --- | ---
Switches 4 and 6 | Both On | All physical spans can be used for CIC’s
Switches 4 and 6 | Both Off | Only physical spans 0-23 can be used for CIC’s

See Signaling System Number Seven.
CICs. Identify the voice circuits controlled by SS7 Signaling Links.
Range of channels provided by T1 or E1 transmission service. A physical span is a group of channels taking up a single physical wire. A logical span is a group of channels taking up less than a single logical wire, or carried over more than one physical wire.
Error control procedure for digital communication channels providing definable bit patterns to allow the receiver to identify the start of each frame of data and the signaling data.
Signaling methods used in Excel platform are: Clear Channel and Channel Associated Signaling.
Options for line length when configuring a T-1 span on a Excel platform are as follows.
0 - 133 Feet
134 - 166 Feet
167 - 299 Feet
300 - 533 Feet
534 - 655 Feet
G.703 ITU-T
See Controlled Introduction.
See Circuit Identification Codes.