Proxim RangeLAN2 7920 Manual de usuario descargar pdf (Pagina 34)

Figure 11. Honeywell HMR3000 [From Ref. 10]

E. COMMUNICATIONS

1. Proxim RangeLAN2 7920

The Proxim RangeLAN2 7920 is a COTS Ethernet LAN module. The unit is

7920 is self-configuring and will auto-negotiate network parameters upon power up .The

7920 is capable of being either a master or a slave station to either another 7920 or a

designated master station. The self-determining master or slave option allows the system

to either work within the range of a LAN or set up its own LAN if being operated in the

field.

Communications between RangeLAN2 products is conducted in the 2.4GHz

range utilizes frequency hopping and spread spectrum technology. The speed of data

transfer is 1.6Mbps. The 7920 have a published range of 1000 feet and experiments with

the system showed a range of 150m in a beach environment beyond line of sight. Line of

sight maximum range in other environments has not yet been determined.

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Proxim RangeLAN2 7920 Manual de usuario Pagina 34