EXPRESS DAS
Installation and Operations Manual
68
EXPRESS DAS Installation and Operations Manual – Version 2.2 November 2013
8.4.1
Connecting the BIU to a BTS
1- Use a spectrum analyzer or power meter to check signals sent from the BTS Tx. If the signals exceed
input range (-20dBm~+10dBm), you can connect an attenuator between the BTS and BIU to bring the
signal level into range.
2- Connect the BTS to the BIU using the RF cabling. The figure below shows an example of connecting
two BTS’s to the BIU backplane. One BTS supports the 800PS band and the other 700PS. It is not
necessary to terminate unused ports on the BIU backplane.
Figure 8
.
6 – BTS Interface to the BIU Backplane
Содержание EXPRESS Single-Carrier DAS
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