7.   REFERENCES


System Description.  DMS 100 Family of
Digital Multiplex Switching Systems.           NTP 297-1001-100

Maintenance and Administration Position        NTP 297-1001-110

I/O Message System                             NTP 297-1001-104






               (c)  NORTHERN TELECOM LIMITED, 1978
                 MAINTENANCE SYSTEM DMS-100/200








                        NTP 297-1001-106                  PAGE 14
                       PREL., ISSUE 01D01
                          May 25, 1978