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Wireless local loop (WLL) is the use of a wireless communications link as the "last mile / first mile" connection for delivering plain old telephone service (POTS) or Internet access (marketed under the term "broadband") to telecommunications customers. Various types of WLL systems and technologies exist.
This is the subscriber-end equipment used the corDECT wireless local loop which provides standard telephone instrument and Internet access up to 70 kbit/s through Ethernet port. The new generation corDECT technology is called Broadband corDECT which supports provides broadband Internet access over wireless local loop.
Fixed wireless is the operation of wireless communication devices or systems used to connect two fixed locations (e.g., building to building or tower to building) with a radio or other wireless link, such as laser bridge. [1] Usually, fixed wireless is part of a wireless LAN infrastructure. The purpose of a fixed wireless link is to enable data ...
Most BUCs use phase-locked loop local oscillators and require an external 10 MHz frequency reference to maintain the correct transmit frequency. BUCs used in remote locations are often 2 or 4 W in the K u band and 5 W in the C band. The 10 MHz reference frequency is usually sent on the same feedline as the main carrier.
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The farther away from the switching center the modem is, the longer the telephone wires, the weaker the signal, and the lower the data rate that the modem can achieve. Users in cities, close to switching centers, may have access to higher rate service, up to 24 Mbit/s. [2] The distance limit for ADSL is 18 000 feet (5.5 km or 3.4 miles). [2]
The X refers to the fact that transmit wires on an MDI device must be connected to receive wires on an MDI-X device. Straight-through cables connect pins 1 and 2 (transmit) on an MDI device to pins 1 and 2 (receive) on an MDI-X device. Similarly, pins 3 and 6 are receive pins on an MDI device and transmit pins on an MDI-X device.
Programmable from the Arduino IDE through an FTDI cable/adapter, or directly through the USB interface (Moteino-USB revision). Moteino runs DualOptiboot, [188] a custom version of Optiboot that allows wireless programming when external FLASH memory is present. The new MoteinoMEGA based on Atmega1284P offers more I/O, an extra hardware serial ...