Juniper MX2020 Hardware Manual page 446

MX2020 3D Universal Edge Router Hardware Guide
DC power cable
lugs...................................................................................360
specifications...............................................................360
DC power circuit breaker...................................................358
DC power distribution
replacing.........................................................................264
DC power distribution module
cables See DC power cable, specifications
installing..................................................................131,
removing...............................................................264,
DC power distribution module cable
connecting......................................................................274
disconnecting................................................................274
replacing..........................................................................273
DC power distribution modules
description........................................................................39
DC power supplies
multiple disconnection
DC power supply module
installing.................................................................134,
removing...............................................................269,
replacing.........................................................................269
DC power supply modules
description........................................................................39
DC PSM
installing...........................................................................134
DC PSMs See DC power supply modules
DC specifications
electrical..........................................................................357
disconnecting
DC power distribution module
dispersion in fiber-optic cable........................................385
documentation
comments on.................................................................xxv
dual-wide MICs
installing.........................................................................256
E
earthquakes
site preparation for........................................................70
tested toleration for seismic....................................355
EIA rack standards.................................................................69
electrical codes.....................................................................340
electrical specifications...........................................357,
electricity
safety warnings............................................................336
site wiring guidelines..................................................382
420
266
265
warning............................338
272
270
cable....................274
369
electromagnetic
compatibility See EMC
pulse.................................................................................382
electromagnetic interference covers
installing............................................................................311
removing..........................................................................310
electronic emission Class A notice
Canada............................................................................348
electrostatic bag
using to store components......................................320
EMC (EMI)
compliance with requirements..............................348
standards........................................................................347
suppression...................................................................382
EMI card cage covers
installing............................................................................311
removing..........................................................................310
EMP (electromagnetic pulse).........................................382
Environment
maintaining.....................................................................147
environmental specifications..........................................355
ESD
preventing damage to components
Ethernet port (for Routing Engine management)
cable
connection during initial
specifications.......................................................388
Ethernet switch
maintaining.....................................................................147
ethernet switch
maintaining.....................................................................173
status, checking.............................................................173
ETSI rack standards..............................................................69
ExtClk
ports See ExtClk port
F
fan
LEDs....................................................................................58
LEDs on the craft interface.........................................38
Fan tray
maintaining.....................................................................147
fan tray
maintaining.....................................................................152
fiber-optic
power budget calculation........................................386
field-replaceable units..........................................................211
fire safety requirements......................................................321
font conventions...................................................................xxiv
Copyright © 2013, Juniper Networks, Inc.
by..............320
installation...........109