Ptx1000 Rack Requirements; Table 21: Rack Requirements For The Ptx1000 - Juniper PTX1000 Hardware Manual

Table 20: Site Electrical Wiring Guidelines (continued)
Site Wiring Factor
Electromagnetic
compatibility
See Also

PTX1000 Rack Requirements

Table 21: Rack Requirements for the PTX1000

Rack Requirement Guidelines
Rack type: four-post Use a four-post rack that provides bracket holes or hole patterns spaced at 1-U (1.75 in. or 4.45 cm)
increments and that 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 Components Industry Association
( http://www.ecianow.org/
Mounting bracket hole The holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm), so that the PTX1000 can
spacing be mounted in any rack that provides holes spaced at that distance.
Copyright © 2018, Juniper Networks, Inc.
Guidelines
If your site is susceptible to problems with electromagnetic compatibility (EMC), particularly from
lightning or radio transmitters, seek expert advice.
Some of the problems caused by strong sources of electromagnetic interference (EMI) are:
Destruction of the signal drivers and receivers in the device
Electrical hazards as a result of power surges conducted over the lines into the equipment
General Safety Guidelines and Warnings on page 112
General Electrical Safety Guidelines and Warnings on page 133
The PTX1000 chassis is designed to be installed in four-post racks.
Rack requirements consist of:
Rack type
Mounting bracket hole spacing
Rack size and strength
Table 21 on page 51 provides the rack requirements and specifications for the PTX1000.
).
Chapter 2: Site Planning, Preparation, and Specifications
51