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  2. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    AN/TTC-20 568 Line Military Fixed Switch (Used by US Air Force - only one was known in existence at Sembach AB, Germany) (retired) AN/TTC-30 568 Line Military Tactical Mobile Switch (Used by US Army and Air Force) (retired)

  3. Hits Radio Manchester - Wikipedia

    en.wikipedia.org/wiki/Hits_Radio_Manchester

    Hits Radio Manchester, formerly Key 103, is an Independent Local Radio station owned and operated by Bauer Media Audio UK as part of the Hits Radio network. It broadcasts to Greater Manchester . As of September 2024, the station has a weekly audience of 311,000 listeners according to RAJAR .

  4. List of IP protocol numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_IP_protocol_numbers

    103 PIM Protocol Independent Multicast: 0x68 104 ARIS IBM's ARIS (Aggregate Route IP Switching) Protocol 0x69 105 SCPS SCPS (Space Communications Protocol Standards) SCPS-TP [4] 0x6A 106 QNX: QNX 0x6B 107 A/N Active Networks 0x6C 108 IPComp IP Payload Compression Protocol: RFC 3173: 0x6D 109 SNP Sitara Networks Protocol: 0x6E 110 Compaq-Peer

  5. Bell 103 - Wikipedia

    en.wikipedia.org/wiki/Bell_103

    The Bell DataPhone 300 used the same protocol as the Bell 103. This modem is from 1978. The Bell 103 modem or Bell 103 dataset was the second commercial modem for computers, released by AT&T Corporation in 1963. [1] [2] It allowed digital data to be transmitted over regular unconditioned telephone lines at a speed of 300 bits per second.

  6. Tetrazolium chloride - Wikipedia

    en.wikipedia.org/wiki/Tetrazolium_chloride

    Triphenyl tetrazolium chloride (TTC), or simply tetrazolium chloride (with the formula 2,3,5-triphenyl-2H-tetrazolium chloride) is a redox indicator commonly used in biochemical experiments especially to indicate cellular respiration. It is a white crystalline powder, soluble in water, ethanol and acetone but insoluble in ether.

  7. List of keyboard switches - Wikipedia

    en.wikipedia.org/wiki/List_of_keyboard_switches

    Key stroke lifespan Drop x Invyr Kailh Holy Panda [22] MX Type stem Tactile N/A 67 g 67 g 67 g 1.2 mm 4.0 mm Plate mounting No Yes 80 million Drop Kailh Halo True [23] MX Type stem Tactile N/A 60 g 54 g 100 g 1.9 mm 4.0 mm Plate mounting Yes Yes 80 million Drop Kailh Halo Clear [23] MX Type stem Tactile N/A 65 g 52 g 78 g 1.9 mm 4.0 mm

  8. MIFARE - Wikipedia

    en.wikipedia.org/wiki/MIFARE

    Contactless ICs that comply with parts 3 and 4 of ISO/IEC 14443-4 Type A with a mask-ROM operating system from NXP. The DES in the name refers to the use of a DES, two-key 3DES, three-key 3DES and AES encryption; while Fire is an acronym for Fast, innovative, reliable, and enhanced.

  9. IEC 60870-5 - Wikipedia

    en.wikipedia.org/wiki/IEC_60870-5

    IEC 103 uses FT1.2 (defined in IEC 60870-5-1) for frame format having options of Frame with variable length, Frame with fixed length & single character similar to IEC 101. Single character is used for acknowledgments, fixed length frames are used for commands & variable lengths are used for sending data.