Hands-On Genband (Nortel) DMS-10 Switch Advanced Support Course

Course Description

The Genband (formerly Nortel) DMS-10 Switch Support course was developed to help telcos continue to support their extensive DMS-10 networks with less reliance upon external resources.

As with many switching systems, the DMS-10's overall reliability is high enough that techs do not often work with advanced problems, so that when such problems do occur, it can be difficult to know how to proceed.

Overlays are looked at in detail, looking special commands like SWCH, CHG, DNLD, 1BUS, and other recovery or firmware related options. Exercises and examples are provided to show how to upgrade the firmware of all system processors, or just certain ones like the 3T98 CPU. These examples are helpful for understanding how any processor in the system can be reloaded, which may become necessary for individual maintenance issues.

Remotes are also looked at in more detail, where OVLY CNFG is used to understand what types of remotes are equipped and how they are engineered. Cables and links are studied, to help understand how the host Network ultimately provides switching to a distant remote over carrier spans. This requires understanding of various hardware components including the DCMDSI, SRLKs, HIE, RCC, and with HSO-SSO, the DLC modules.

Additional documents are studied, including environmental, electrical, and grounding, plus Installation Methods which show processes for system cabling, upgrades, and conversions. These procedures may not always be used today, but such documents serve as excellent benchmarks for complex troubles.

Other topics like OVLY LOG, Operational Measurements, and Bug Messages are reviewed, plus there are several examples from real-world troubleshooting, including outages, CPU, and other common-control hardware faults.

The course covers a broad range of knowledge, yet is flexible and can be changed to match the specific needs of a given telco or region, and the types of hardware used locally.

Students Will Learn

DMS-10 system module review to ensure no gaps in knowledge
Inter-module cabling and backplanes
Bay, shelf, pack, and cable port locations
Different NET and IFPK options, GTSB, and Di-Loop counts
How to use less common OVLY options
Use and understand all types of NTP documents
Use system logs and Bug messages to troubleshoot
Work with HSO-SSO clusters, looking at alarms for each node
Know the types of RLCM-family remotes, plus SLC GR-303 connections
Recovery procedures using EPs, and understand 1-Bus mode
Troubleshooting by previous examples
And much more

Target Audience

Technical staff such as Central Office Technicians, NOCSCC, certain management personnel, and those seeking cross-training or system interoperability with the DMS-10 switch, and who need to solve complex or chronic problems.

Prerequisites

Students are recommended to have previously completed the DMS-10 Maintenance and Troubleshooting course, or have a good understanding of the DMS-10 switching system and its various overlays and commands, as well as general Central Office concepts.

Course Outline

Module 1 :   DMS-10 Switch Summary
        - CPU Core
            MTI, TTY0 & 1
            IOI devices
            Bay Options
        - Network
            Classic vs. EN/CNI
            Interface Packs
            MLI & DS-30A
            Bay Options
        - IO
            GPIO
            MPU, LSHF
        - Peripherals
            Line: PSHF, LCM
            Trunk: PSHF, DCM, DSI
            Packet: PGI
Remotes
        RSC, RSC-S
            RLCM-Family incl. OPM, OPAC, Star Hub
            RSLE, RSLM, OPSM
            HIE, RMM, ESA, RCC
            SCM-10U: DMS-1U
            SCM-10R: DMS-1R
            SCM-10S: SLC-96Ž
            SCM-10A: ESMA & GR-303 RDTs
            REM
        - Cluster Concept
            HSO-SSO
            LCC-SSO
Time Division Multiplexing (TDM)
            MLI, DS-30A, DS-60, DS-256
            Time-Space-Time Philosophy
        - Functional Block Diagram (Tier 2)
        - 297-3601-150 - Equipment Identification

Module 2 :   Cabling and Links
        - MTI - TTY0 & 1, Alarm Panel
        - SDI, DSDI, TTY2-31
        - Ethernet - 3T84
        - PCM & Control Signals
            PELP vs. Di-Loop
        - Network Interface to Peripherals (PSHF, DCI, LCM)
        - Links to Remotes
            DSX, HIE Shelf
            SRLK, DS-1, MLI/DS-30A, DS-30B
            3T50 DLC & HSO-SSO
            RCC
            6X73 LCC
        - Alarms
            ALPK, ALPT, TALM
        - IM 03-4208 - DMS-10 Physical Handbook
        - 297-3601-100 - General Description

Module 3 :   Commands
        - Resident (RES) Commands             LIST TRB, CSEL, MON, ACC, OVLY, etc.
        - Detailed OVLY Options
            Overlay Selection: PE vs. CE equipment
            CKT
            CPK
            PED
            DED
            NED
            DN
            ODQ
            TLT
            LIT
            ALO
            IOD
            CED
            LED
            SED
            BERT
            CNFG
            LOG
            Various examples - translating a cable, finding engineered parameters, etc.
        - NTP 297-3601-311 DMO
        - NTP 297-3601-506 MDI
        - Exercises

Module 4 :   Documentation
        - Helmsman v4.x
            CD-ROM Install & Browser-Based
            Helmsman Alternatives
        - NTP & Procedure Look-up
            297-3601-000 - Index to NTPs
Nortel Technical Publications (NTP) - 297 Series
        297-3601-002 - NTP Description and Use
            297-3601-100 - General Description
            297-3601-150 - Equipment Identification
            297-3601-300 - Input/Output System
            297-3601-311 - Data Modification Manual
            297-3601-316 - DIP Switch Settings
            297-3601-450 - Provisioning
            297-3601-456 - Operational Measurements
            297-3601-500 - General Maintenance Information
            297-3601-506 - Maintenance Diagnostic Input
            297-3601-511 - Maintenance and Test
            297-3601-902 - Pocket Guide
            297-3601-903 - Output Message Manual
            Procedure Concept: EP, GP, RP, MP, TP
        - HW Baseline Report
Job Site Documentation
            J - Equipment Assembly
            IS - Interconnect Schematic
            SD - Schematic Diagram
            IM - Installation Method
        - Demonstration & Examples
            Classic-EN/CNI Switch Box procedure example

Module 5 :   Support
        - Temperature and Environment
            297-3601-180 - System Performance Specifications
        - Electrical Capabilities
            297-3601-184 - Circuit Interface for Lines, Trunks, Test Trunks
        - Power & Grounding
            297-3601-187 - Grounding System
        - Locating Equipment
            OVLY CNFG - SITE, SSO, SHD "REx"
            OVLY IOD - DLC
            OVLY NED - Network type, PELP types
            OVLY CED - CPU Core, 1BUS, SWCH, QUE HEX
            OVLY SED - CCS7, LAN
            OVLY DED - CE peripherals, Network, Remotes
            OVLY PED - PSHF peripherals
            Bay labeling
            "Translate" P & C
        - Line Test:
            PMS system components
            External systems: 4TEL, Test Desk/DMM
        - Logs
            OVLY LOG
            QUE, SRCH
            LINE, TTY, ALM, TEXT
        - Bug Messages
            $QM & OMM
        - Operational Measurements
            EADAS format
            Measurement Types
            PRNT OPM
        - Examples:
            Replacing Line 6X05 Drawer
            RMM Fault
        - Exercises & Practice

Module 6 :   RTOS & Software
        - GRS-3601-60220 - Generic Release Summary
        - System Software Versions
            Using Upgrade Docs as references
            OVLY UPDT - QPL
            OVLY CNFG - UPGD options
        - Processor Versions
            STAT LCMC ALL
            VERS IFPK ALL
            VERS LAN ALL
            VERS IOI
            etc.
        - RTOS CPU Upgrade
            IM 65-4969 Upgrade Example
            TP 3147 Reload Example
                         - Generic Upgrade Process
            DNLD
            SWCH
            CHG

Module 7 :   Troubleshooting
        - Emergency Procedures
            Preparedness & Proofing
            EP 0006 Power-Up (Cold-Start) Procedure
            EP 0009 Dead System Recovery Procedure
            EP 0012 Manual System Software Reload Procedure
        - Troubleshooting Procedures
            TP 6023 & TP 7103 & - RLCM Outage Example
            297-8351-550 - RLCM Maintenance Manual
            TP 4072 - Network Interface Pack fault
        - Student Examples

Delivery Method

Instructor-Led with numerous exercises throughout

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

BTS provides equipment for a very successful Hands-On course, but encourages students to bring their own equipment to the course such as laptops, documentation, etc. This provides students with the opportunity to incorporate their own gear and resources into the labs, gaining valuable experience with 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