| the birth of wireless transceiver modules, a | | | | quickest time-to-market alternative. Pre-approved |
| designer may opt to use RF integrated cirucuits | | | | transceiver modules by ETSI and other regulatory |
| (chips or chipsets). He can dictate how these chips | | | | bodies allow designers to set out their products |
| will work in accordance with the software he will | | | | around the world with minimal further approvals. |
| develop. Until the product passed is approved, this | | | | This makes transceiver modules a popular choice |
| could take months or even years of a sequence | | | | for designers in this fast-paced world of wireless |
| of rejection and reworking. | | | | data communications. |
| A faster time-to-market substitute to chip or | | | | There are several fiber optic suppliers that offer |
| chipsets is wireless transceiver (transmitter | | | | a line of wireless transceiver modules that meet |
| receiver) modules that permit designers at all | | | | many of the performance and ease of use |
| levels of RF experiece to add a comprehensive | | | | specifications of FCC. integrating these wireless |
| wireless system into their products. Several of | | | | data communicatioin solutions is as simple as |
| these transceiver modules are created as a | | | | transmitting data from a common port, |
| drop-in answer where designers make a fitting | | | | communicating at a short or long range while |
| pin-out on their processor board and supply serial | | | | consuming minimal power and maintaining high |
| data to the appropriate pins. There are also | | | | levels of interference rejection over multiple kinds |
| modules that provide the easiest integration which | | | | of networks. |
| allow the designer to transfer raw UART | | | | Wireless transceiver modules are created for a |
| information into the module and expect the same | | | | variety of purposes. One kind is a |
| data out on the receiving end of the wireless | | | | frequency-hopping spread spectrum module that |
| network. | | | | uses a simple UART interface to communicate |
| Since wireless transceiver modules are approved | | | | with the host system. Others use a patented |
| by FCC and other regulatory agencies, designers | | | | filtering technology to offer interference immunity, |
| using FCC approved modules bypass further | | | | including 70 dB of cell phone and pager rejection. |
| testing for their wireless products, allowing | | | | |