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FAQ
NLM LocatorPlus -- Z39.50 Capabilities


Question: Does NLM have a Z39.50 server for retrieving bibliographic records from LocatorPlus?


Answer:

  • - NLM provides Z39.50 access to its online public access catalog (OPAC), LocatorPlus.
  • - The Library operates a version 3 compliant Z39.50 server. Some important notes about NLM's Voyager database access via Z39.50:
    • - Voyager systems do currently support Boolean AND/OR/NOT searching on search types with a POSITION attribute of 3
    • - Initialization, Present and Scan Protocol options are supported within the Z39.50 standard
    • - Setting up access assumes a general familiarity with Z39.5
  • To connect to LocatorPlus using z39.50 you will have to configure your client with the following parameters:
    • - Host name: ilsz3950.nlm.nih.gov
    • - Port:
      • 7090 (MARC-8 Character Set Encoding)
      • 7091 (UTF-8 Character Set Encoding)
    • - Database: VOYAGER
  • - The following table displays the Bib-1 Attribute Set supported by Voyager:

NLM Z39.50 Attribute Table

Search Field NameUse AttributesPosition AttributesTruncation Attributes
Personal Name 1 1,3 1,100
Corporate Name 2 1,3 1,100
Conference Name 3 1,3 1,100
Title 4 1,3 1,100
Series Title 5 1,3 1,100
Uniform Title 6 1,3 1,100
ISBN 7 3 1,100
ISSN 8 3 1,100
Subject 21 1,3 1,100
Subject: MESH 25 1,3  
Subject: LSCH 27 1  
Publisher: Date 31 1,3 1,100
Title, Key 33 3 1,100
Title, Varying Form 41 1 1,100
Title, Former 42 1 1,100
Title, Key Abbreviated 43 1 1,100
Language Coded 54 1,3 1,100
Publisher: Place 59 1,3 1,100
CODEN 60 1 1,100
Author 1003 1,3 1,100
Subject Name: Personal 1009 1,3 1,100
Keyword Anywhere 1016 3 1,100
Publisher: Name 1018 3 1,100
NLM Record Number 1062 1,3 1,100
  • - Because of our firewalls, you will get an error message if you try to "ping" the servers
  • - More information on Z39.50 resources is available from the Library of Congress at
    http://lcweb.loc.gov/z3950/agency/
  • - For further assistance with searching LocatorPlus, see the LocatorPlus Tutorial at
    http://www.nlm.nih.gov/psd/ref/tutorials/locatorplus/table_of_contents.html

Related Questions:
LocatorPlus Questions

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