MINI-LINKEandEMicro
7.2.3 Ring-configured Networks for Protection
The MXU makes ring network protection possible.
In the figure below, data is sent in both directions (clockwise, Tx_D, and
counter-clockwise, Tx_E) in the ring network but only received in one. If
connection is lost between two sites an error signal will activate the MXU
to switch to receive from the intact part of the ring (Rx_D coming from radio
ter minal D in this case).
MXU
Radio Terminal D
MMU MMU
BTS
Radio Terminal E
Rx_D
Tx_D
Rx_E
Tx_E
Tx Rx
3585
Figure 85 Ring network with MXU for protection
118
AE/LZT 110 2012 R8C 2002-03-04
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