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DEFINITY Made Easy Tools
Issue 2, November 2000
Install Additional Hardware
Add DCS Interface
This section includes general information on adding the DCS interface and the Task List: Add DCS.
Systems in a Distributed Communications System (DCS) network are interconnected by both tie trunks (for voice communications) and data links (for control and transparent feature information). These data links, also called DCS signaling links, support the feature transparency.
Various subsets (depending on the specific configuration) of DS1 Interface circuit packs (including TN464F, TN767E, and TN760E) provide the voice-communications interface. The TN799B Control LAN (C-LAN) circuit pack. provides the data link interface (between the processor and the physical signaling link).
The C-LAN TN799 circuit pack combines the functions of the P-GATE and PI circuit packs into one circuit pack. The P-GATE or PI is used with the C-LAN to create an X.25-to-TCP/IP bridge for adjunct and DCS connectivity.
In some configurations, the TN799 passes the signaling information over a separate 10BaseT TCP/IP network (usually via a hub) to adjuncts applications such as CMS, Intuity, and DCS Networking. The C-LAN circuit pack has one 10baseT Ethernet connection and up to 16 DS0 physical interfaces for PPP connections. In addition to the TCP/IP functionality, C-LAN extends the ISDN capabilities for R7csi and later models by providing packet bus access. For use with 10BaseT, connect the appropriate pins of the I/O field to the hub. For pinouts and diagrams, refer to Connector and Cable Diagrams (Pinout Charts).
In other configurations, the TN799 circuit pack carries signaling over point-to-point protocol (PPP) for subsequent inclusion (via the switching fabric) in the same DS1 bitstream as the DSC voice transmissions.
A remote socket control link (RSCL) links the C-LAN and the SPE to pass call control and other management information. Because one link serves all the ports on the circuit pack, RSCL maintenance is part of the C-LAN circuit pack maintenance.
As an option to the TN768 Tone-Clock, a TN780 Tone-Clock circuit pack (installed in the PPN) can interface external Stratum 3 synchronization for DS1 connections.
For further information about DCS, refer to the following documents:
- AT&T System 75/85 Network and Data Services Reference Manual, 555-025-201
- System 75 Application Notes Network Services, 555-209-002
- DEFINITY ECS Release 8 Administration for Network Connectivity
Task List: Add DCS
- Install Cables
- Add Circuit Packs
- Test the External Connection to the LAN
- Enter Added Translations
- Save Translations
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| Copyright� 2000 Avaya Inc |
| Send comments to MadeEasy Development Team |
| Always check at the Made Easy Web site for the most current information. |