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The SCSI Bulletin Board System (316) 636-8700 24 hours 300/1200/2400 baud
Introduction to X3T9.2
X3T9.2 is a Task Group of X3, an Accredited Standards Committee (ASC),
which operates under rules that are approved by the American National
Standards Institute (ANSI). These rules are designed to insure that
voluntary standards are developed by the consensus of industry groups.
X3 develops standards. ANSI approves the process under which they are
developed and publishes them.
+--------+
| ANSI |
+--------+
|
... --+-------------------+-- ...
| |
+--------+ +--------+ +--------+
| IEEE | | X3 |---------| CBEMA |
+--------+ +--------+ +--------+
|
... --+-- ...
|
+--------+
| X3T9 | I/O Interfaces
+--------+
|
+-------------------+-------+----------+------------------+
| | | |
+--------+ +--------+ +--------+ +--------+
| X3T9.2 | | X3T9.3 | | X3T9.5 | | X3T9.6 |
+--------+ +--------+ +--------+ +--------+
SCSI IPI LDDI Tape
ESDI HPPI FDDI (Inactive)
Fiber Channel
X3T9.2 operates under X3T9, I/O Interfaces. X3T9.2's charter is Lower-
Level Interfaces. Its principal work is the Small Computer System
Interface (SCSI), which is not a low-level interface anymore (if it ever
was "low-level"). SCSI was published as ANSI Standard X3.131-1986 in
1986. X3T9.2 is currently finishing SCSI-2 and beginning SCSI-3. The
Enhanced Small Device Interface (ESDI) project is also in X3T9.2. This
standard has recently been approved by ANSI, so there is little current
activity in X3T9.2.
The Computer and Business Equipment Manufacturers Association (CBEMA) is
the Secretariat for X3. CBEMA charges a nominal fee for membership in
X3T9.2 to cover the X3 Secretariat's operating costs. The CBEMA charges
(called Service Fees) are:
$250.00 per year - X3T9.2 Observers Anyone can be an Observer -- No
attendance is necessary.
$250.00 per year - X3T9.2 Principals There is only one Principal allowed
per organization. This fee includes
one free Alternate. Additional
alternates cost the same as
Observers. Certain attendance
rules apply to get and maintain
principal membership.
In addition, there is a subscription fee of $110.00 per year (may change in
1990) to cover the cost of copying and mailing X3T9.2 documents (six
mailings per year). You have to be a member or observer to receive these
mailings. Members are not required to subscribe, but there really is no
reason to be an observer unless you do subscribe. To subscribe, download
(or "T"ype) the MEM_FORM.TXT file in file area 1, print it and fill in the
blanks. Mail it along with your check or credit card number to the X3
Secretariat. Or you can call Katrina Gray in the X3 Secretariats office
at (202) 626-5741.
X3T9 meets 6 times per year at various locations throughout the country.
During the same weeks, X3T9's Task Groups meet at the same locations.
These plenary meetings are scheduled more than a year in advance. In
addition, the Task Groups often schedule one or more ad hoc meetings
(called Working Groups) between the plenary meetings. Meeting schedule
information is available in SCHEDULE.TXT in file area 1.
If you would like to attend an X3T9.2 meeting, please check the
SCHEDULE.TXT file. You do not need to "register" for these meetings --
just show up at 9:00 a.m. at the designated hotel. When making room
reservations, mention ANSI X3T9 for a special room rate.
(File: X3T9_2.TXT last updated 1/5/89)