Juniper MX240 Hardware Manual page 239

replacing.............................................................106
status, checking........................................72, 74, 83
DPCs
components..........................................................10
troubleshooting.....................................................83
E
earthquakes
site preparation for...............................................32
tested toleration for seismic................................163
EIA rack standards.......................................................31
electrical specifications......................................167, 172
electricity
safety warnings...................................................144
site wiring guidelines..........................................176
electromagnetic
compatibility See EMC
pulse...................................................................176
electrostatic
bag, using to store components..........................130
EMC (EMI)
compliance with requirements............................157
standards............................................................155
suppression........................................................176
EMP...........................................................................176
environmental specifications.....................................163
ESD
preventing damage to components by................130
Ethernet port
description............................................................16
Ethernet port (for Routing Engine management)
cable
connection during initial installation..............50
replacement instructions.............................105
specifications...............................................183
ETSI rack standards.....................................................31
F
fan tray
description............................................................24
maintaining..........................................................68
troubleshooting.....................................................82
fan trays
replacing.......................................................92, 194
fiber-optic cable See cable, fiber-optic
field-replaceable units
listed.....................................................................87
fire safety specifications.............................................130
font conventions........................................................xviii
G
grounding (electrical) specifications
AC-powered router..............................................165
DC-powered router.............................................165
grounding cables
lug......................................................................165
H
hardware components
power requirements...........................................171
returning for repair or replacement....................197
higher-order mode loss (HOL)....................................179
host subsystem
description............................................................11
LEDs.....................................................................19
maintaining..........................................................70
taking offline.........................................................96
hot-pluggable components, description........................87
humidity (relative), acceptable...................................163
I
immunity standards...................................................155
installation
AC power, connecting...........................................54
DC power, connecting..........................................56
DPC, connecting...................................................51
parts received, verifying........................................38
preparing to install................................................37
router............................................................45, 187
unpacking the router.............................................37
installation instructions
alarm relay contact wires
during initial installation................................50
for maintenance or replacement...................91
tools required................................................49
cable, auxiliary or console port (for Routing Engine
management)
during initial installation................................50
for maintenance or replacement.................105
tools required................................................49
cable, Ethernet port (for Routing Engine
management)
during initial installation................................50
for maintenance or replacement.................105
tools required................................................49
DC power and grounding cables
tools required................................................53
instructions
calculation
power requirements....................................171
cleaning See cleaning instructions
Index
211
Index