NCR 7448 Workstation, Hardware User'S Manual

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Chapter 1: Product Overview 1-9
Wireless LAN Communications
Where a wired Ethernet connection is not desired a wireless LAN adapter may
be installed in the PCMCIA socket. This requires that the PCMCIA
daughter-card feature be installed. The NCR 7448 Workstation Release 1.0
supports for the WaveLAN 11Mb Turbo wireless LAN card only. A wireless
LAN used in the workstation must meet the following requirements:
•
Integrated antenna that meets the requirements of PCMCIA (PC Card)
Extended Type 2 card definition. (a maximum of 5 cm additional length).
•
Power consumption within capabilities of the PCMCIA daughter-card.
•
Signaling requirements within the capabilities of the workstation PCMCIA
interface. The main restriction is that DMA transactions are not supported
over the PCMCIA interface.
Device drivers for the targeted operating system must exist.
•
Appropriate infrastructure (server support, Base Stations, Ceiling
Antennas, etc) must be present in the installation site, and the maximum
RF range of the wireless system must not be exceeded.
Interoperability – While the 802.11 standard provides an interoperable protocol
definition, there are vendor-specific extensions to the protocol that encourage
users to stay with one supplier’s equipment. This also applies to wireless
infrastructure and access points, operation of which is not governed by 802.11.
Mixing of RF suppliers on a site is not recommended until the RF suppliers have
demonstrated interoperability.