Nokia of America Corporation BBTRX-22 Benutzerhandbuch

Daisy chain configuration (future)

The daisy chain configuration is shown below and consists of connecting the first
Alcatel-Lucent B25 RRH4x30 directly to the Alcatel-Lucent 9926 BBU; the remaining
B25 RRH4x30s are daisy chained from the first B25 RRH4x30.

Note: The CPRI daisy chain configuration is not supported in the initial release
(LR14.1.L). The CPRI daisy chain configuration will be supported in a future release.

Fiber in

CPRI1

CCM

* Customer supplied optional fiber splice/management enclosure

CPRI2

CPRI1

CPRI2

CPRI1

RRH

9926 BBU

Alpha sector

Beta sector

Gamma sector

CPRI Interface

Common Public Radio Interface (CPRI) configuration

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7-4

Alcatel-Lucent – Proprietary

Use pursuant to applicable agreements

B25 RRH4x30

3MN-02023-0001-RJZZA

Issue 0.02

January 2015

AFT