33.040.30 - Switching and signalling systems
Showing 17–30 of 30 results
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BS 6450-6-6.1:1986:1988 Edition
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication…
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BS 6450-5-5.1:1984:1988 Edition
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication…
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BS 6450-2:1983:1998 Edition
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication…
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BS 6450-7:1990
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication…
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BS EN 50065-1:2001+A1:2010
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz –…
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BS EN 50065-2-3:2003 2006
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 Khz –…
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BS EN 50065-4-2:2002 2005
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz and…
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BS EN 50065-2-1:2003:2006 Edition
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz –…
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BS EN 50065-4-6:2004
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz –…
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BS EN 50065-2-2:2003 2007
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz –…
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BS EN 50065-4-5:2003
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz. Low…
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BS EN 50065-7:2001:2002 Edition
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz –…
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BS 1050:1984
Specification for indicator lamps for use in telecommunication apparatus and for allied purposes Published By…
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BS 469:1960
Specification for electric lamps for railway signalling Published By Publication Date Number of Pages BSI…