Hands-On LIVE Virtual DMS-100 Switch Advanced Support Course

Course Description

This extensive Virtual Live Instructor-led course provides the skills required to perform support and a high-degree of troubleshooting for the DMS-series of switches. The course begins with a fast review of key system operating principles and terms, including use of the CI and MAPCI terminals, and advances quickly to more complex subjects like core and network options, including the scalable XA-Core processor. The original Junctor Network (JNET) and later Enhanced Network (ENET) options are discussed, based upon the needs of a given class. The Link Peripheral Processor (LPP) is also a focus, explaining this new processor's role as both a front-end device and a peripheral module.

Peripheral Modules (PM) are then discussed in detail, looking at the PCM and control signal paths, including cable connections between different devices on the P- and C-sides. Remotes are also discussed in some detail, including important sub-modules like the HIE, ESA, and RMM. Power and grounding are also reviewed, plus how alarms are wired. Routine exercises are compared in different MAPCI menus, to see how options differ in modules like ENET, CM, and lines, including line power converters. Special formatting cards used for SLC-96 and GR-303 are also shown, including how EOC TMC channels support RDT remotes.

The course then looks at various types of documents, including installation docs which describe backplane and cable connections, and how to locate information needed for troubleshooting. Commonly used menus are augmented with hidden or lesser-used options. Certain types of Operational Measurement and debug tools are highlighted. The course then moves to more challenging troubleshooting scenarios, looking at the process to change common equipment devices that affect many circuits, including system recovery steps, such as non-restart SWACT up to a full reload restart.

Previous troubles are reviewed and used as exercises, but time is also reserved for students to present their own experiences or actual troubles which they may currently be working with, providing broad exposure to many different types of faults in a short time. Our non-intrusive exercises equip the student to conduct support activities, including aspects of cabling and the backplane, which helps them to provide assistance to those with less knowledge of the system.

Students Will Learn

DMS-100 System Review including all types of remotes
Advanced Access CI, MAPCI RTIF, plus logs reports
Core design cabling - including CMXAC and JNETENET options
How to find trouble symptoms from various sources
Documentation including Alarm Clearing, Recovery, and Cabling
How to find the physical location of a fault
How to trace faults through different modules
Tables - tables such as inventory are demonstrated
Fault examples including CM PM load scenarios
Restart reload procedures
And much more

Target Audience

Technical staff such as Central Office Technicians, combo-techs, and those who are responsible for the maintenance and troubleshooting of Central Office systems, plus NOCSCC personnel who must provide technical support. Certain management and provisioning personnel will also benefit, providing a greater understanding of the resources needed for the system, and how to support it.

Prerequisites

Students should have previously taken the DMS-100 Maintenance and Troubleshooting course, or have a good working knowledge of DMS-100 switching principles and MAPCI use.

Course Outline

Module 1 :   DMS-100ฎ Switching Theory
        Review:
            DMS-100, 200, 250, 300, 500
            CM/XAC, MS, Network, LPP
            Lines, Trunking, SPM, GR-303 IDT (incl. VoIP)
            RLCM (incl. OPM), RCU, Clusters, GR-303 RDT, SLC-96ฎ
            MTM, 4TEL
        IO:
            MAP, Telnet, direct serial, RTIF
        PCM:
            Network Review
            Pulse Code Modulation (PCM)
            DS0/1/3
            DS-30, DS-30A, DS-512
        Binary & Hexadecimal Review
        Commands:
            CI, SYS
            Logutil
            System Restarts
        MAPCI:
            Telescoping
            Hidden Commands
            Alarm Interrogation
            Command Options (i.e. _PORT, _CARD, _IOC, etc.)
        End-to-End Call

Module 2 :   Front-End Architecture
        DMS-core:
            CM (9X-Series)
            XA-Core Structure (NTLX-Series)
            Scalability (i.e. PE, SM, TELN)
            RTIF Connections
        DMS-bus/MS:
            Message Arbitration
            Clocking
            Cabling - SR-512 (Core), Network
        Network - JNET:
            - 0X48, 5X13, 7X27, 7X40, 8X11 (as required per class)
            - Parallel & Serial Junctors, NMs
            - Connections: MS, CM/XAC, LPP
        Network - ENET:
            - 16K, 64K, 128K XPT
            - V-Bus & H-Bus
        IOM:
            CONS, RS-232C Serial
            SLM & DDU/SCS
        LPP:
            LIM, ASU, F-Bus, C-Bus
            LIU7 & CCS7
            EIU
            NIU
            Packet Connections
        Front-End Cabling
            Backplanes
            Address/Control, PCM, packet & Ethernet, TTY consoles, power
            Labeling

Module 3 :   Peripheral Architecture
        PM:
            I: TM, MTM, OAU/AXU, other relevant modules
            II: LGC/DTC/LTC & ISDN variants, SMU/SMR/SMA2 (incl. ESMA/GR-303),
                 LCM/LCME
            III: LPP, EIU, LIU7
            SPM, Optical-Carrier
            Backplanes
            Peripheral Cabling (DS-30/DS-512, address/control, ringing, power)
        REx & COVREX:
            Running, results, on-demand
        Interconnections:
            Cable types & locations
            Paddle boards
            Reading backplanes


Module 4 :   Remotes & Links
        Types:
            RSC, RLCM, OPM, DMS-1U/1R
        Supporting equipment:
            RCC, HIE, ESA, RMM
        Carrier:
            Copper, optical links
            Data, voice links
        SLC-96
        GR-303:
            EOC, TMC channels
            Packet Devices (i.e. Calix C7)

Module 5 :   Documentation
        Viewers:
            Helmsman & PDF viewers
            CD-ROM, Corporate Server, or Virtual Machine
        Types:
            Nortel Technical Publications (NTP) - 297 Series
            PLN-5001-001i – Technical Specification
            Installation Manuals: System Cabling
            TAM: Debug Manuals
            Equipment Cabling
        Exercise:
            Looking-up a 6X44 Fault

Module 6 :   Alarms & Testing
        Investigation:
            MAPCI, Queries, Status, Visual Indicators, Reports
        Locating:
            CKTINFO, CKTLOC, LOCATE, TRNSL C & P (from different origins)
        Posting:
            POST command options & use scenarios
            post dtc, post spm, post trks, post pm, post carrier
        Alarms:
            Scan points, Distribution points
            Office Alarm Unit (OAU), Alarm Extender Unit (AXU)
        Clocking:
            Backplane clock signals - for oscilloscope reference
        PM:
            QUERYPM, REx, Logs
            Example: PM Reload
        REx:
            REx, COVREX - Interpreting results
            Scheduling, On-demand REx test
        Logutil:
            open, first, forward, back, last, quit, etc.
        Other Tools:
            Operational Measurements
            Service Problem Analysis
            Debug (TAM)
        Other alarms:
            Power, grounding, frame alarms, alarm sending
        Examples (incl. instructor & student provided examples)

Module 7 :   Troubleshooting
        NOC/SCC Interaction
        ESD Precautions
        Recovery Documentation
            Alarm Clearing & Performance Monitoring
            Trouble Locating
            Recovery Procedures
        Examples:
            Line DRWR Replacement
            CPU 9X10 Fault
            Student Examples (past or current switch alarms)
        Restarts & Reloads:
            Synopsis - recovery philosophy
            NTP 297-8001-545
            SWACT (no-restart)
            RTIF: JAM, OVERRIDE, BOOT
            System Restart - Warm, Cold
            Journal File
        Tracing:
            Interpreting results
            TRAVER
            REVXLVER

Module 8 :   Tables
        Fields & Tuples:
            pos, count, format pack, list, quit, etc.
        Key Tables:
            TABLES, OFCSTD, OFCENG, SITE, CLLI, CLLIMTCE, IPNETWRK, etc.
            Inventories (LN, DN, PM, LENLINE, PECINV, etc.)
        TABREF

Notes

The course is designed to run in a Live Instructor-Led Virtual Classroom setting. More complex troubleshooting concepts are discussed with this course including inter-bay cabling and backplane fault analysis. Students should have physical access to a DMS-100 switch in order to best benefit from exercises. Virtual Field Trips can be added to allow students an opportunity to see and understand where all the parts of the system are found, what they do, and to provide a better end-to-end understanding of the system.

This course can be combined with other courses like CO Switching Fundamentals, the DMS-100 Maintenance Troubleshooting Course, and the DMS-100 Translations Course for a customized curriculum.

Delivery Method

LIVE Virtual Instructor-led with a flexible approach that adjusts content most relevant to students. Includes various non-intrusive labs, demonstrations, and exercises to help students focus on and retain the material presented.

Equipment Requirements
(This apply's to our hands-on courses only)

Students must have Virtual andor remote-access to a DMS-100 switch for this training. Physical access is recommended to maximize direct hands-on.

BTS always provides equipment to have a very successful Hands-On course. BTS also encourages all attendees to bring their own equipment to the course. This will provide attendees the opportunity to incorporate their own gear into the labs, and gain valuable experience using their specific equipment.

BTS always provides equipment to have a very successful Hands-On course. BTS also encourages all attendees to bring their own equipment to the course. This will provide attendees the opportunity to incorporate their own gear into the labs and gain valuable training using their specific equipment.

Course Length

5 Days