Radio Options; Radio Protocols - Psion Teklogix 9150 User Manual

1.4 Radio Options

The 9150 supports Type II PCMCIA cards so that multiple radio interfaces are possible.
There is one internal and one external PC card slot available. The type of PCMCIA
radio card installed in the 9150 is dependent on your wireless network. Currently
supported radios are:
• TRX7370 Narrow Band DSP.
• TekLAN 902 MHz DS Spread Spectrum (TRX7410).
• TekLAN 2.4 GHz DS Spread Spectrum (TRX7425).
• Proxim RangeLAN802 IEEE 802.11 FHSS 2.4 GHz (TRX7440).
• Lucent WaveLAN IEEE 802.11 DSSS 2.4 GHz (TRX7430).
The 9150 has dual-radio functionality. It can support several combinations of radio
types to function as both a mini-controller and base station, access point and base sta-
tion, or access point and mini-controller. The 902 MHz, 2.4 GHz (802.11 and TekLAN)
and Narrow Band radios can be used in any combination, with the exception of dual
TekLAN or dual Narrow Band radios.
Important: The radio in the terminal must match the radio in the 9150 Wireless
Gateway. If changing radio types in the 9150, DO NOT "hot swap"
the PC cards: Turn the 9150 off before changing the radio.

1.5 Radio Protocols

RF protocols allow terminals to communicate with a base station by sharing the use
of a radio channel in an efficient way. Teklogix systems use one of three types of RF
protocols: the Teklogix Adaptive Polling/Contention protocol, the Teklogix
Wireless LAN (Wlan) protocol, or the non-proprietary IEEE 802.11 protocol.
When used as a base station, the 9150 uses either the Adaptive Polling/Contention
protocol or the Wlan protocol. These two protocol types cannot be mixed on a
single system. When used as an access point device, the 9150 employs the
IEEE 802.11 protocol. These protocols are described in the following sections.
Chapter 1: Introduction
Teklogix 9150 Wireless Gateway User Manual

Radio Options

7