Televes OLT 769401, User Manual

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Descripción del producto
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Step 6 Cover the module optical interface with the module dust cap;
Step 7
Cover the card module interface with the SFP/SFP+ module interface cover, or insert a new SFP/SFP+ module (please see
module insertion procedures above).
4.6 Maintenance
4.6.1 Cooling System
The OLT cooling system functioning is illustrated bellow.
The air enters the system being filtered by the air filter in the left side of the chassis. The cooling module pulls the hot air up and out to the right
side of the chassis.
Important!
For the correct cooling system function the air must only enter the system at the bottom of the chassis
passing through the air filter. All undesired air entries must be sealed, both to ensure proper system
ventilation and prevent dust entry.
It is mandatory to cover the empty SFP/SFP+ card interfaces with the corresponding SFP/SFP+ interface
covers, Figure;
It is mandatory to cover the unused optical card interfaces with the corresponding optical covers.
Figure 4-4: SFP/SFP+ interface covers
4.6.1.1 FAN Module
The OLT system has a single cooling module with three redundant FANs. In case of failure of one of the FANs, the air supplied by the adjacent units
is enough for the proper functioning of the equipment.
Figure 4-5: OLT cooling module with redundant FANS
The cooling system is subject to preventive maintenance to ensure proper operation. Depending on surrounding conditions (locations subject to
higher room temperature or exposed to high concentrations of dust, such as outdoors) that period may be decreased.
The procedure for the cooling system maintenance must be complied with the verification; inspection; and cleaning of the cooling module. It is
recommended that this intervention is made by replacing the cooling module by another, to minimize the time that the system is working without
air circulation. The removed cooling module can be reused in another system after properly cleaned and inspected.