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  2. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    Code 1: A time critical case with a lights and sirens ambulance response. An example is a cardiac arrest or serious traffic accident. Code 2: An acute but non-time critical response. The ambulance does not use lights and sirens to respond. An example of this response code is a broken leg. Code 3: A non-urgent routine case. These include cases ...

  3. Police radio code - Wikipedia

    en.wikipedia.org/wiki/Police_radio_code

    Examples of police codes include "10 codes" (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes, or other status codes. These code types may be used in the same sentence to describe specific aspects of a situation. Codes vary by country, administrative subdivision, and agency.

  4. Supervision (telephony) - Wikipedia

    en.wikipedia.org/wiki/Supervision_(telephony)

    The term open switching interval originates from the time of early electronic switching systems in the Bell System, e.g. the 1ESS, that replaced electromechanical switches. In the 1ESS switching system employing ferreed crosspoint switches, battery may have temporarily been removed for a few hundred milliseconds from the tip and ring conductors ...

  5. CAMELS rating system - Wikipedia

    en.wikipedia.org/wiki/CAMELS_rating_system

    A 2 rating denotes high-quality assets although the level and severity of classified assets are greater in a 2 rated institution. Credit unions that are 1 and 2 rated will generally exhibit trends that are stable or positive. A rating of 3 indicates a significant degree of concern, based on either current or anticipated asset quality problems.

  6. Supervisor Call instruction - Wikipedia

    en.wikipedia.org/wiki/Supervisor_Call_instruction

    SVC is a two byte instruction with the hexadecimal operation code 0A; the second byte of the instruction, the SVC number, indicates the specific request. [2] The SVC number can be any value from 0 to 255, with the particular SVC number being up to the implementer of the operating system, e.g. on IBM's MVS, SVC 3 is used to terminate a program, while on the UNIVAC VS/9 and Fujitsu BS2000 ...

  7. Two-person rule - Wikipedia

    en.wikipedia.org/wiki/Two-person_rule

    Per US Air Force Instruction (AFI) 91-104, "the two-person concept" is designed to prevent accidental or malicious launch of nuclear weapons by a single individual. [1]In the case of Minuteman missile launch crews, once a launch order is received, both operators must agree that it is valid by comparing the authorization code in the order against a Sealed Authenticator (a special sealed ...

  8. Supervision - Wikipedia

    en.wikipedia.org/wiki/Supervision

    Supervision is the act or function of overseeing something or somebody. It is the process that involves guiding, instructing and correcting someone.

  9. IEC 60870-5 - Wikipedia

    en.wikipedia.org/wiki/IEC_60870-5

    The security of IEC 104, by design has been proven to be problematic, [2] as many of the other SCADA protocols developed around the same time. Though the IEC technical committee (TC) 57 have published a security standard IEC 62351 , which implements encryption tunneling and network monitoring in an effort to address attacks such as packet ...