Hands-On Nokia GTD-5 Advanced Support Course

Course Description

As OEM-support options dwindle, it has become more important than ever for telco personnel to resolve network faults on their own, even the most difficult ones. BTS recognizes the challenges of finding affordable, support-level training, and has worked hard to provide you with no-compromise, expert-led courses at the support level.

The Nokia (formerly AG Communication Systems) GTD-5 Support Course provides a detailed support-level course with updated, full-color block diagrams and images. This course was designed to bring students with a general, maintenance-level competency on the GTD-5 to a considerably more advanced understanding of the system, including its backplane and cabling. This will help the understanding of inter-module connections, so that almost any fault can be traced and corrected. The microprocessor (MP) front-end and Common Memory Units (CMU) are looked at in detail, with an emphasis on the APC and its connections to the ACDC. Important interfaces like the Operations Gateway (OG), LCDT, RCDT, and AMA equipment are explained and accessed, as available. The role and variations of MDC CPX are also discussed.

The course also looks further at the PCM network, and studies how the SIC, SSW, and BUNW are interconnected. Superordinate and Subordinate status are explained, and how they relate to the BUNW, TSW, and PCUs. Various failing diagnostic examples from previous BUNWTSW faults are reviewed and decoded, including recovery messages such as SMA syndromes and diagnostic fault printouts. In particular, the 1.019 Non-Maskable Interrupt, 3.059 PCM Trace, and 3.028 Executive Reset SMA Syndromes are studied, along with the typical craftsperson action for each.

System database is also looked at in some detail, to help students understand what may be a hardware problem, and what may be a database problem. Control parameters, system module engineering, and other commands are used to understand what the system is doing, what certain error messages mean, etc.

Finally, documentation such as the UG, CRL and EL are used to trace cabling, and look at the layout of the backplane of key frames. Troubleshooting techniques are taught pro-actively, including Maintenance-window procedures. Time is allotted to work on troubles which students have encountered and want to discuss. Almost any type of hardware or software fault can be reviewed, with an explanation of the typical steps needed for resolution.

Students Will Learn

Review all primary modules of the GTD-5 EAX switch
Understand the different versions of hardware for memory switching
How system modules are cabled, and how to look-up cabling information
Understand how a call is made through the system
Predict common points of failure
Understand what is system control and what is PCM hardware
Break-down SMA syndrome data
Decode diagnostic output data in either binary or hexadecimal format
Know how to find additional information using IO commands
Implement FACT traces to verify hardware or database status
And much more...

Target Audience

Technical staff such as those in the NOCSCC, Central Office Technicians, and certain management personnel, or any others involved with troubleshooting of complex faults in the GTD-5 switch.

Prerequisites

Students should have previously taken the GTD-5 Maintenance And Troubleshooting course, or have a good working knowledge of the modules and operation of the GTD-5 switch and its IO commands.

Course Outline

Module 1 : GTD-5ฎ Theory of Operation - Review
        - Front End: APC, TPC plus DM/CMU
        - CPX, DISK, IROC
        - IOU, FTU
        - Extension Complex
        - PCM Network: BUNW, TSW, PCU plus NCU & SSW/SIC
        - Lines: ALU, ELU, SLU, XAIU
        - Trunks: DCU, EDCU, DS3
        - Remotes: RSU incl. RSNW, RLU incl. RLNW, 914 MXU
        - Remotes: GR-303 Compliant RDT
        - Remotes: SLC-5ฎ, SLC-96ฎ
        - PCM Overview
            Frequency sampling
            Binary
            Frames - DS0, DS1
            PCMX, PCMR
            TSC
        - Time-Space-Time
        - A Phone Call

Module 2 : Front-End Hardware
        - Microprocessor Architecture
            Intel 8086/80386SX
            Upper & Lower Echelons
            DUBE
            Address & Data Busses
            Dedicated Memory (DMEM) incl. Page Access
            MPCC, ADDR, MPBC, CFCA functions
            Alarm Registers
            REPO LOAD INFO
        - Common Memory
            CMU (CCM, COM, CMX, CM4X, CM8X)
            EXAM CONT PARA
        - APC & Peripherals
            IOU0 & 1
            FTU
            MTU/mte
            ACD, ACDC, LCDT, RCDT
            ICIC/Terminals, TERM7
        - TPC
            D4MW-DM32 Versions
        - MDC
            Groups 0-2
            APC, TPC, TCU Interfaces
            MDCM, MDDI Card Optioning Issues
        - SIC
            SIC (8 BPC)
            SCX (16 BPC)
        - CPX
            CST/SS7 - incl. DSC Modems
            DSUB - DISK - 300MB & 1GB
            IROC - GR-303 Function
            LANI - OG, Ethernet Connections
        - OG
            IOMM - GTD-5 IO Terminal
            UNIX - UNIX Terminal
            BI - Batch Interface Terminal
            AMA - Connectapp AMA

Module 3 : PCM & Peripheral Hardware
        - BUNW
            Time Switch - TSW, TSWE, and TSC
            PCU - ACU, CCU, DCU, EDCU
            PIU - ALU, ATU, SPAN
            NCU - incl. BITS, master timing signal (MTS), oscillator issues
        - SSW
            Large SSW
            Expanded SSW (SSWE or XSS)
            Cable & Frame Differences
            SIC connections
            TCU connections - Rail A&B/C&D
        - RSNW incl. Survivability, FIU0-3 & FIU4-7
        - RLNW
        - MXU
        - FTU
            KA & KG varieties, Small (Remote)
            Functional Block Diagram

Module 4 : Documentation
        - User’s Guides - 4008, OG, AMA, XLMF, etc.
        - GTD-5 Engineering Documents - how to use:
            FA - Functional Assembly
            FB - Functional Block
            FE - Functional Explanation
            EL - Electronic Locator (wiring planes, cable pinouts)
            ECD - Equipment Configuration Document
            CRL - Cable Running List
            PLRG - Product Line Reference Guide
            HDWM - Hardware Matrix Report
        - Tracing a Lead
            Using the EL
            Using the FB
        - Cabling
            Reading Labels
            Using the CRL
            Using the EL
        - Practice

Module 5 : Binary & Hexadecimal
        - Binary to Decimal
        - Hexadecimal to Decimal
        - Hex Words, Bytes, Nibbles
            DIAG PRIN4 vs. PRIN3
            Convert Hex to Bin
        - Advantages to Each Format
        - DIAG FTU PHAS30,31 example
        - DIAG MRCC PRIN3.3 EPAR2 example
        - Practice

Module 6 : System Malfunction Analysis (SMA)
        - SMA Classes - priority through deferred
        - SMA lookup in UG
        - Recognizing Patterns
        - SMA Breakdown
            Hex & Binary fields
            Part 16 Messages
            Craftsperson Action
        - 1.019 NON-MASKABLE INTERRUPT
            Key Fields
            Examples
        - 3.059 PCM TRACE
            Meaning of Fields
            Enabling
            Examples
        - 3.028 EXECUTIVE RESET
            Meaning of Fields
            Interpreting the Messages, Associated Messages
            Craftsperson Action

Module 7 : Diagnostics
        - Diagnostics
            PRIN3.3 vs PRIN4.4
        - Part 15 - Repair Manual
            Level 1 Card Repair - card level repair
            Level 2 Card Repair - diagnostic info, options
            Level 3 Card Repair - diagnostic breakdown, backplane
            Practice
        - Using System Malfunction Analysis (SMA)
        - DIAG vs ROUT
        - RUN and ITER
        - Execution Parameter (EPARM)
        - PUT vs FORC

Module 8 : Practical
        - ACU Fault
        - BUNW Fault
        - FIU Outage - Encapsulated State
        - MP Fault - local copy
        - MP Fault - cross copy
        - DLNK Fault - remote impact
        - CMU Fault
        - Exercises - by student request

Module 9 : System Database
        - Control Parameters
            CONT PARA, BILL PARA
        - Engineering Parameters
            Processors (i.e. EXAM TCU, TSW vs. TSWE, etc.)
            Memory (i.e. EXAM CMU, REG BLOC)
            Ringing    (i.e. EXAM RGG, EXAM FREQ ASSI)
            Testing (i.e. EXAM FTU)
            Power (i.e. EXAM IOU, ROUT PS)
            Alarms (i.e. EXAM AUX, AUXC, AUXS)
        - Tracing with FACTS

Notes

5 Day 10 Day Versions

The course length is flexible at 5-10 days, with the longer version intended for NOC and key COT personnel who work more frequently on difficult problems. A shorter version is helpful for persons working with either the NOC or TAC, while still allowing them to understand and handle many problems independently.

Delivery Method

Instructor-Led with numerous exercises throughout.

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

BTS always provides equipment to have a very successful Hands-On course. BTS encourages students to bring their own equipment to the course, such as laptops and documentation. This will provide attendees the opportunity to incorporate their own gear into the labs and gain valuable training using their own 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