This Hands-On course will provide the skills necessary to perform day-to-day maintenance, plus show how to troubleshoot service-affecting faults along with non-intrusive exercises to equip the students to conduct maintenance activities and perform troubleshooting procedures. Students will also cover various types of documentation , which will help greatly when working with the switch.
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.
The 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 main modules including the NT3T98 CPU, clock, disk, TTY, and various peripherals connected to the DSDI and IO bus extender interfaces. The switching Network is also discussed in detail, describing DS-30 PELP links, and the various types of line and trunk peripherals they connect. Specific peripherals for a given system can be emphasized as needed, such PE, CE, LCE, DTC, etc. Miscellaneous Equipment is also discussed, including connections to CCS7, announcement systems, etc.
The DMS-10s command line interface, including System Level commands and menu Overlays are also demonstrated in detail. Many practical examples such a MO system images, line testing, trunk testing, and alarm interrogation are shown. Previous core faults are presented as exercises, where the students 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. Training may include any topic of particular interest to the student, or to a given region, and may also include optional subjects like translations and external alarming.
Finally, the Helmsman documentation viewer and NTPs (Series 602) are covered in detail, with an emphasis on the documents used for maintenance, alarm clearing and card changing.
Students Will Learn: