Course Description:
Widely recognized as the worlds first all-digital switching system, the Nortel DMS-10 is one of the most popular digital switches ever produced, and still remains in widespread use today due to its high reliability and low-latency for voice circuits.
The Genband (Nortel) DMS-10 Switch Maintenance and Troubleshooting course presents a detailed description of the system, and provides the skills necessary to maintain and troubleshoot the switch and its related peripherals. General system architecture is discussed, with diagrams showing functional blocks, card-level call processing, and all the main modules including the NT3T98 CPU, clock, disk, TTY, and both the original "Classic" and Enhanced CNI networks. Links to the Network are also discussed in detail, describing both MLI and DS-30A PELP links, and the various types of line and trunk peripherals to which they connect. Specific peripherals for a given system can be emphasized as needed, such PE, CE, LCE, DCM, DSI, etc. Miscellaneous Equipment is also discussed, including connections to the CCS7 network, announcement systems, etc.
The DMS-10s command line interface, including system level RES commands and menu Overlays are also demonstrated in detail. Many practical examples are used, such as an MO system image with faults, line testing, trunk testing, and alarm interrogation. Previous faults are also presented as exercises, where the student will determine the needed course of action. Their conclusions are then compared with the answers of what was actually done to correct these previous faults, providing an extremely effective learning method with zero impact to the network. Basic translations including new station numbers, TRVR and CNAM examples are shown. Training may also include any topic of particular interest to the student, or to a given region.
Finally, the Helmsman documentation viewer and NTPs (Series 400, 500, or 600) are covered in detail, with an emphasis on the documents methodology used for maintenance and alarm clearing.
Students Will Learn:
Course Length:
5 Days
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