Juniper SSR120, Hardware Manual

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Table 11: Rack Requirements and Specifications
Guidelines Rack Requirement
Use a two-post rack that provides bracket holes or hole patterns that are spaced at 1-U
increments (1.75 in. or 4.45 cm), and ensure that the rack meets the size and strength
requirements to support the weight.
A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment
(document number EIA-310–D) published by the Electronics Industry Association.
Rack type
Ensure that the holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm) so
that the appliance can be mounted in any rack that provides holes spaced at that distance.
Mounting bracket hole
spacing
•
Ensure that the rack complies with the standards for a 19-in. rack as defined in Cabinets,
Racks, Panels, and Associated Equipment (document number EIA-310–D) published by
the Electronics Industry Association.
•
Ensure that the spacing of rails and adjacent racks allows for proper clearance around
the appliance and rack.
•
Ensure that the rack rails are spaced widely enough to accommodate the chassis’ external
dimensions. The outer edges of the front-mounting brackets extend the width to 19 in.
(48.26 cm).
Rack size and strength
•
Secure the rack to the building structure.
•
If earthquakes are a possibility in your geographical area, secure the rack to the floor.
•
Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum
stability.
Rack connection to
building structure
Cable Specifications and Pinouts for SSR120
IN THIS SECTION
Console Port Connector Pinouts for SSR120 | 26
Pluggable Transceivers Supported on SSR120 | 26
25