Reference details
- Reference
- EN 28877:1993
- Official title
- Information technology - Telecommunications and information exchange between systems - Interface connector and contact assignments for ISDN Basic Access Interface located at reference points S and T (ISO/IEC 8877:1992)
- Organisation
- CEN
- Publisher status in source
- WithdrawnThis is the status recorded in the source, not a statement that this is the latest edition.
- Source access
- 19 October 2026
Research and application
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Product research routes
- Radio and communications equipment
Radio configurations, spectrum use and the interaction between hardware, software and network functions.
- Electrical components and installation systems
Component ratings and installation conditions that determine how evidence can be used in a finished assembly.
Questions for the evidence file
- Radio configuration matrix
- Antenna specification
- Test-mode equivalence
- Software version and change control
- Rating schedule
- Material and insulation data
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Legal citation
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