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in stockReleased: 1997-07-15
UNE TBR 17:1997
BUSINESS TELECOMMUNICATIONS (BTC). ORDINARY AND SPECIAL QUALITY VOICE bandwidth 4-wire analogue leased lines (A4O and A4S). Attachment requirements for terminal equipment interface.
Comunicaciones de empresa (BTC). Líneas analógicas alquiladas de banda vocal de 4 hilos de calidad ordinaria y especial (A4O y A4E). Requisitos de conexión de interfaz de equipo terminal.
CURRENCY
Standard number: | UNE TBR 17:1997 |
Pages: | 28 |
Released: | 1997-07-15 |
DESCRIPTION
This standard UNE TBR 17:1997 BUSINESS TELECOMMUNICATIONS (BTC). ORDINARY AND SPECIAL QUALITY VOICE bandwidth 4-wire analogue leased lines (A4O and A4S). Attachment requirements for terminal equipment interface. is classified in these ICS categories:
- 33.040.40