Optical Specifications For The Optical Ila - Juniper PTX3000 Hardware Manual

Table 17: Cabinet Requirements for the Optical ILA
Cabinet Requirement
Cabinet size and clearance
Cabinet airflow requirements

Optical Specifications for the Optical ILA

Table 18 on page 48 provides the optical specifications for the optical ILA.
Table 18: Optical Specifications
Parameter
Input power range
Guidelines
The minimum cabinet size for accommodating an optical ILA is 18 in. (45.7 cm)
deep. Large cabinets improve airflow and reduce the chance of overheating.
NOTE: The DC version of the optical ILA conforms to the ETSI 300 mm
cabinets.
When you mount the optical ILA in a cabinet, ensure that ventilation through
the cabinet is sufficient to prevent overheating.
Ensure that the cool air supply you provide through the cabinet adequately
dissipates the thermal output of the optical ILA (and other installed
equipment).
Ensure that the cabinet allows the hot exhaust air of the chassis to exit
the cabinet without recirculating into the optical ILA. An open cabinet
(without a top or doors) that employs hot air exhaust extraction from the
top allows the best airflow through the chassis. If the cabinet contains a
top or doors, perforations in these elements assist with removing the hot
air exhaust.
Install the optical ILA in the cabinet in a way that maximizes the open space
on the field-replaceable unit (FRU) side of the chassis. This maximizes the
clearance for critical airflow. The optical ILA exhausts hot air through the
fans and power supplies.
Route and dress all cables to minimize the blockage of airflow to and from
the optical ILA.
Ensure that the spacing of rails and adjacent cabinets allows for the proper
clearance around the optical ILA and cabinet.
Configurations
Loaded system (96 channels)
Single channel
Minimum
–15.2 dBm
–35 dBm
Maximum
9.8 dBm
–10 dBm
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