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CPRI interface

There are two CPRI interface ports (labeled CPRI1 and CPRI2) on the bottom of the
Alcatel-Lucent B25 RRH4x30. Connections are made between these ports and an
Alcatel-Lucent 9926 Base Band Unit (BBU) [Alcatel-Lucent 9926 BBU]. The CPRI1
(primary) port is connected to the Alcatel-Lucent 9926 BBU and the CPRI2 (secondary)
port is reserved for future use.

The ports support CPRI Rate 3 through 5 and are hardware ready to support CPRI Rate 7.

The CPRI port connectors are SFP sockets.

Note: SFP optical transceivers and Radiall 2 Connectors to Transceiver (R2CT)
weatherized connectors are not provided with the Alcatel-Lucent B25 RRH4x30.
They must be ordered separately and are required for installation.

AISG interface

There is one surge-protected AISG output port on the bottom of the Alcatel-Lucent
B25 RRH4x30.

The AISG output connector is an 8-pin circular DIN sockets (female pins).

Alarms interface

There is one surge-protected user alarm port on the bottom of the Alcatel-Lucent
B25 RRH4x30. The user alarms port can support up to four external user alarms.

The user alarm port connectors are 8-pin circular DIN sockets.

RF antenna interface

There are four RF TxRx ports on the bottom of the Alcatel-Lucent B25 RRH4x30.
Connections are made between these ports and an antenna or antennas.

The RF port connectors are 7/16 DIN coaxial sockets.

Note: Unused RF port connectors must have a 10 W load terminator installed, which
are not provided with the Alcatel-Lucent B25 RRH4x30. If needed, they must be
ordered separately.

Receive monitor (RxMON) interface

There are four RF RxMON ports on the bottom of the Alcatel-Lucent B25 RRH4x30.
Connections are made between these ports and antenna receive monitoring equipment.

The RxMON port connectors are QMA coaxial sockets.

External interfaces

Description

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January 2015

Alcatel-Lucent – Proprietary

Use pursuant to applicable agreements

3-5

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