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  2. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    The modules are combined to form a complete switch or any of the modules can be added to your present Step-by-Step Systems.) EMS-2 (The EMS-2 RURAL SWITCH is a stored program control analog switch designed to be cost-effective in small exchanges. The modular design with connectorized cabling permits fast initial installation and growth.

  3. File:RS20985 (IA RS20985-crs).pdf - Wikipedia

    en.wikipedia.org/wiki/File:RS20985_(IA_RS20985...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Help; Learn to edit; Community portal; Recent changes; Upload file

  4. DIP switch - Wikipedia

    en.wikipedia.org/wiki/DIP_switch

    Eight switches offer 256 (2 8) combinations, which is equivalent to one byte. A tri-state type DIP switch can be in one of three positions (+, 0, −) which allows more codes than a binary DIP switch. For example, 8 pole tri-state DIP switches offer 6,561 (3 8) combinations/codes compared to 8 pole binary switches' 256 (2 8) combinations/codes ...

  5. Limit switch - Wikipedia

    en.wikipedia.org/wiki/Limit_switch

    Limit switches are used in a variety of applications and environments because of their ruggedness, ease of installation, and reliability of operation. They can determine the presence, passing, positioning, and end of travel of an object. They were first used to define the limit of travel of an object, hence the name "limit switch".

  6. Mercury switch - Wikipedia

    en.wikipedia.org/wiki/Mercury_switch

    A Single-Pole, Single-Throw (SPST) mercury switch on millimetre graph paper, device length approximately 1.5 cm Another mercury switch design. A mercury switch is an electrical switch that opens and closes a circuit when a small amount of the liquid metal mercury connects metal electrodes to close the circuit. There are several different basic ...

  7. Smith & Wesson SW - Wikipedia

    en.wikipedia.org/wiki/Smith_&_Wesson_SW

    The Smith & Wesson SW series, most commonly referred to as the Smith & Wesson Sigma, was Smith & Wesson's first venture into using synthetic materials in pistol construction, with high-strength polymer material for the frame. The Smith & Wesson Sigma is somewhat infamous in the gun community due to its controversial history.

  8. 10 Gigabit Ethernet - Wikipedia

    en.wikipedia.org/wiki/10_Gigabit_Ethernet

    10GBASE-LR (long reach) is a port type for single-mode fiber and uses 1310 nm lasers. Its 64b/66b PCS is defined in IEEE 802.3 Clause 49 and its PMD sublayer in Clause 52. It delivers serialized data at a line rate of 10.3125 GBd. [29] The 10GBASE-LR transmitter is implemented with a Fabry–Pérot or distributed feedback laser (DFB). DFB ...

  9. Analogue switch - Wikipedia

    en.wikipedia.org/wiki/Analogue_switch

    An analogue switch: Maxim MAX313. An analogue switch, also called a bilateral switch, is an electronic component that behaves in a similar way to a relay, but has no moving parts. The switching element is normally a pair of MOSFET transistors, one an N-channel device, the other a P-channel device. The device can conduct analog or digital ...