Installation Instructions

Table Of Contents
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COMPANY CONFIDENTIAL CENG0336_XE_nanoBTS_Installation_and_Test_Manual.doc
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Figure 8 below illustrates the correct cabling of the Ethernet and TIB
cables:
Figure 8 - Ethernet and TIB cabling
4.6.3 Ethernet
Each 139/140/178 nanoBTS must be connected to an Ethernet switch or hub via either
a 109 ip.access single power inserter or 126 ip.access Powered Ethernet Switch.
Refer to CENG0033 for details of the power supply connections. The 165 EDGE
nanoBTS may use either the above power options or a separate 48V DC power supply
available from ip.access.
4.6.4 Timing Interface Bus (TIB) – Multi-TRX only
The Timing Interface Bus (TIB) is used to provide clock and signaling between the
nanoBTS when operating in a Multi-TRX configuration.
The TIB OUT from the Master TRX must be connected to the TIB IN of the slave TRX.
This in turn has its TIB OUT connected to the next TRX in the chain. See Figure 9.
Figure 9 - TIB Connections