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Switching and signalling systems

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BS 1050:1984

Specification for indicator lamps for use in telecommunication apparatus and for allied purposes

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BS 6328-4:1985

Apparatus for connection to private circuits run by certain public telecommunication operators. Specification for apparatus for connection to telegrap...

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BS 7378-2:1991

Apparatus for connection to public telecommunications systems using the Digital Access Signalling System No. 2 (DASS 2) via a 2048 kbit/s CCITT Recomm...

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PD 7004:1995

Essential requirements for terminal equipment intended for connection to digital interfaces of the PSTN using Digital Access Signalling System No.2 (D...

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BS 7378-3:1998

Apparatus for connection to public telecommunications systems using the Digital Access Signalling System No. 2 (DASS 2) via a 2048 kbit/s CCITT Recomm...

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BS 7378-1:1997

Apparatus for connection to public telecommunications systems using the Digital Access Signalling System No. 2 (DASS 2) via a 2048 kbit/s CCITT Recomm...

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BS EN 50065-7:2001

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz. Equipment impedance

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BS IEC 61334-3-1:1998

Distribution automation using distribution line carrier systems. Mains signalling requirements. Frequency bands and output levels

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BS EN 50065-2-2:2003

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Immunity requirements for mains communications equipment...

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BS EN 50065-2-1:2003

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Immunity requirements for mains communications equipment...

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BS EN 50065-2-3:2003

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 Khz. Immunity requirements for mains communications equipment...

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