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  2. OneTouch Ultra - Wikipedia

    en.wikipedia.org/wiki/OneTouch_Ultra

    The OneTouch Ultra 2 Meter is similar in design and operation to the OneTouch Ultra, with features including Before and After Meal Flags, Comments, and a list-style memory recall. This meter also provides 7-day, 14-day, and 30-day averages, with the option of averaging "before meal" or "after meal" records. Currently, there are two products in ...

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    An expansion of the 400 Bad Request response code, used when a client certificate is required but not provided. 497 HTTP Request Sent to HTTPS Port. An expansion of the 400 Bad Request response code, used when the client has made a HTTP request to a port listening for HTTPS requests. 499 Client Closed Request.

  4. FlexRay - Wikipedia

    en.wikipedia.org/wiki/FlexRay

    FlexRay is a communication bus designed to ensure high data rates, fault tolerance, operating on a time cycle, split into static and dynamic segments for event-triggered and time-triggered communications. It is mainly used in aeronautic and automotive sectors.

  5. DTMF - Wikipedia

    en.wikipedia.org/wiki/DTMF

    www.itu.int /rec /T-REC-Q.23 /en. Dual-tone multi-frequency signaling (DTMF) is a telecommunication signaling system using the voice-frequency band over telephone lines between telephone equipment and other communications devices and switching centers. [ 1 ] DTMF was first developed in the Bell System in the United States, and became known ...

  6. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Zone 5 uses eight 2-digit codes (51–58) and two sets of 3-digit codes (50x, 59x) to serve South and Central America. Zone 6 uses seven 2-digit codes (60–66) and three sets of 3-digit codes (67x–69x) to serve Southeast Asia and Oceania. Zone 7 uses an integrated numbering plan; two digits (7x) determine the area served: Russia or Kazakhstan.

  7. History of the single-lens reflex camera - Wikipedia

    en.wikipedia.org/wiki/History_of_the_single-lens...

    The meter was uncoupled – the photographer would need to wait until the meter stabilized and manually set the shutter speed and lens aperture to match the indicated exposure reading. [145] The first camera with a built-in meter (also uncoupled) was the Zeiss Ikon Contaflex (Germany) 35 mm twin-lens reflex (TLR) camera of 1935. [93] [145] [146 ...

  8. Flexible cable - Wikipedia

    en.wikipedia.org/wiki/Flexible_cable

    Flexible cable. Flexible cables, or 'continuous-flex' cables, are electrical cables specially designed to cope with the tight bending radii and physical stress associated with moving applications, such as inside cable carriers. Due to increasing demands within the field of automation technology in the 1980s, such as increasing loads, moving ...

  9. List of mobile telephone prefixes by country - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_telephone...

    268 7xx. 10. NANP member. Argentina. +54. 9/15. 10. All carriers: Claro, Movistar, Personal, Tuenti. 15 before the local number but after long distance area code for national calls (0 11 15 xxxx-xxxx) and 9 placed after the international access code excluding the 15 for international calls (+54 9 11 xxxx-xxxx).