Aastra NeXspan C, Руководство по установке

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AMT/PTD/PBX/0020/2/4/EN 01/2007 Page 21
Chapter 2 - Description
2.1 Description
The integrated DECT is designed to operate with NeXspan C/S/L/D, NeXspan 50 and NeXspan
50.
The DECT system contains the following components:
• the mobile set which enables the user to use PBX telephony features
• the base station which provides radio coverage for a given area and supports four
simultaneous calls. In addition, the base stations are equipped with "antenna diversity", a
feature that ensures optimal reception quality within the coverage area. The number of radio
base stations used depends on the size of the coverage area and the level of traffic
supported. Only after carrying out a site radio survey is the number of base stations
determined, to ensure complete coverage for each site. Connecting a DECT base station to
an S0 access voids the possibility of connecting any other ISDN equipment via the same
access (point-to-point bus).
• DECT interface card: the base station is connected to the PBX via an S0 link for 2-channel or
4-channel base stations.
Figure 2-1: DECT base station - PBX connection