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==256 ELECTRONIC LOCATION AND ACCESSElectronic location and access==
==Field Definition==
This field contains the information required to locate the electronic item described by the
remote host containing the remaining information needed to access the item.
==Occurrence==
Optional. Repeatable when the location data elements vary (subfields $a, $b, $d) and when more than
retrieval.
==Indicators==
Indicator 1: Access Method
Indicator 2: Blank (not defined)
==Subfields==
===$aHost name===
Repeatable.
===$b Access number===
The access number associated with a host. It can contain the Internet Protocol (IP) numeric
extension). Repeatable.
===$cCompression information===
Repeatable.
===$d Path===
Repeatable.
===$e Date and Hour of Consultation and Access===
The time, in the form YYYYMMDDHHMM, at which the electronic item was last accessed.
Not repeatable.
===$f Electronic name===
The electronic name of a file as it exists in the directory/subdirectory indicated in subfield $d on
publication or conference. Repeatable.
===$h Processor of request===
The username, or processor of the request; generally the data which precedes the at sign ( ‘@’) in
the host address. Not repeatable.
===$i Instruction===
An instruction or command needed for the remote host to process a request. Repeatable.
===$j Bits per second===
The lowest and highest number of bits (binary units) of data that can be transmitted per second
[Highest BPS]. Not repeatable.
===$k Password===
Used to record general-use passwords, and should not contain passwords requiring security. Not
repeatable.
===$lLogon/login===
General-use logon/login strings which do not require special security. Not repeatable.
===$m Contact for access assistance===
Repeatable.
===$n Name of location of host in subfield $a.===
Not repeatable.
===$o Operating system===
For information, the operating system used by the host specified in subfield $a is indicated in this
subfield. Not repeatable.
===$p Port===
The portion of the address that identifies a process or service in the host. Not repeatable.
===$q Electronic Format Type===
Contains an identification of the electronic format type, whic h determines how data are
registered Internet Media types (MIME types). Not repeatable.
===$r Settings===
The settings used for transferring data. Included in settings are:
(Odd), E (Even), N (None), S (Space), and M (Mark). Not repeatable.
===$s File size===
The size of the file as stored under the filename indicated in subfield $f. It is generally expressed
Repeatable.
===$u Uniform Resource Identifier===
The URI, which provides standard syntax for locating an object using existing Internet protocols.
Not repeatable
===$v Hours access method available===
The hours that access to an electronic resource is available at the location indicated in this field.
Repeatable
===$w Record control number===
Repeatable.
===$x Non-public note===
Repeatable.
===$y Access method===
The access method when the first indicator position contains value 7 (Method specified in
repeatable.
===$z Public note===
Repeatable.
===$2 Link text===
Used for display in place of the URL in subfield $u (Uniform Resource Identifier). When
linking to the destination in subfield $u. Repeatable.
==Examples==
''EX 1''
256 '''<nowiki>4#$uhttpu</nowiki>http://purl.pt/441'''
== Див. також ==