Cabinet interconnection (FMUX/FOX)

Horizonmacro

The FMUX multiplexes and demultiplexes full duplex transceiver links between an MCUF and up to six CTUs.

M-Cell6 and M-Cell2

The FOX provides the bidirectional electrical to optical interface between an MCU or
FMUX and up to six TCUs.
The FMUX multiplexes and demultiplexes electrical connections for up to six TCUs onto
a single fibre optic connection operating at the rate of 16.384 Mbit/s.

Horizonmacro
The following factors should be considered when planning the FMUX


Table 4-3 FMUX complement

Cabinet               Master            Extender 1              Extender 2         Extender 3
1 (master)           None
2                            None                       1
3                            None                       1                                    1
4                              1                             1                                    1                               1


An FMUX is not required in the master cabinet for two or three cabinet
configurations.

A fourth Horizonmacro cabinet requires one FMUX plus one FMUX in the master
cabinet.


Redundancy requires duplication of an FMUX and associated MCUF.


M-Cell6 and M-Cell2

he following factors should be considered when planning the FOX/FMUX complement

A FOX board is required for more than two TCUs.

Each additional M-Cell6 cabinet requires a minimum of one FOX and FMUX plus
one FMUX in the first cabinet.


Redundancy requires duplication of all FOX and FMUX boards and associated
MCU and microBCU cages.

Horizonmacro

Determine the number of FMUXs required.


M-Cell6 and M-Cell2

Determine the number of FOX/FMUXs required.