ATM-LAN Exchanger Installation
From Fiscal year 1996 Audit Report
Cases where Auditees Rectified System to
Effectively Use Facilities
- Since fiscal year 1994, the Ministry of Education (MOE)
has been developing Asynchronous Transfer Mode Local Area Networks (ATM-LANS)
in national universities.
- ATM exchangers are core components within each national
university’s ATM-LAN. They are connected with each other by optical fiber
cables, and enable multi-media data - such as voice, image and character
data - to be transmitted at high speed. Exchangers sort out data by
destination, and convey it to the destination terminals they are connected
to. One ATM exchanger can host a maximum of 32 terminals.
- The Administrative Departments of national universities
receive requests for installation of ATM-LAN core components - such as
exchangers and optical fiber cables - from individual university faculties.
They design the specific ATM-LAN system based on such requests, and then
submit ATM-LAN installation plans to the MOE. The MOE reviews and approves
each university’s ATM-LAN installation plans.
- The Board’s audit covered 31 national universities
and 446 ATM exchangers. The audit revealed that the exchangers hosted, on
average, only 34% of the maximum number of connectable terminals.
Furthermore, 11 universities among the 31 universities audited had not
connected any terminals to their exchangers, or had failed to use a smaller
number of exchangers to connect their terminals more efficiently.
Consequently, in these 11 universities, 118 exchangers were largely or
- The Board found that:
- the MOE had failed to provide universities with
sufficient guidance on ATM-LAN installation;
- the MOE had failed to review universities' ATM-LAN
installation plans thoroughly; and
- the Administrative Departments of universities had also
failed to examine their faculties' ATM-LAN installation plans thoroughly.
- Following the Board’s findings, the MOE issued an
administrative circular instructing national universities to establish
university – wide ATM-LAN installation plans; to closely examine
individual faculties' ATM-LAN use plans; and to scrutinize current ATM-LAN
(Ministry of Education/Action Taken/
¥529.72million: total of the purchasing prices of the idled ATM-LAN
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