Service Manual

GSM-205-423
Connecting fibre optic cables
31st Oct 01
Installation & Configuration: Horizon macro indoor
68P02902W08-B
CONTROLLED INTRODUCTION
Inst. 2–45
Protecting fibres and connectors
To maintain good light transmission through the fibre optic link it is essential to
maintain cleanliness of the connector end surfaces and/or bare fibre ends.
At all times when fibres are not connected into the system, the connector
protective caps (normally red) should be fitted and kept in place. This is
especially important when routeing fibres during installation.
Cleaning fibres and connectors
Cleanliness of fibre terminations and connectors is essential. If cleaning of
contaminated optical components is required, then all areas should be wiped
gently with a lint free cloth soaked in a suitable cleaning solution. Care should
be taken to ensure the ends of the fibres are not scratched in any way, and are
completely dry before reconnection.
Connecting glass fibre cables
Fibre-ST connectors are used to terminate the fibre optic cables. These are
push fit and should not be tightened when connecting. Table 2-5 shows the fibre
optic interconnections between master and extension cabinets in multiple
cabinet sites.
Table 2-5 Fibre optic interconnections
Master cabinet
connection
Extension
cabinet
FMUX
connection
MCUF TCU0 FMUX0 IN 2nd cabinet DATA OUT
MCUF TCU0 FMUX0
OUT
2nd cabinet DATA IN
MCUF TCU1 FMUX1 IN 3rd cabinet DATA OUT
MCUF TCU1 FMUX1
OUT
3rd cabinet DATA IN
FMUX module DATA IN 4th cabinet DATA OUT
FMUX module DATA
OUT
4th cabinet DATA IN