Juniper MX240 Hardware Manual page 241

powering on the router..........................................55, 58
R
rack
clearance around, required...................................32
mounting bracket hole spacing.............................32
securing to building..............................................32
size and strength required....................................31
standards, EIA and ETSI........................................31
rack mounting
brackets................................................................43
radio frequency interference, preventing...................176
redundancy....................................................................4
regulatory compliance................................................125
relative humidity, acceptable.....................................163
removal instructions
alarm relay contact wires......................................91
cable
auxiliary or console port (for Routing Engine
management)...........................................105
Ethernet port (for Routing Engine
management)...........................................105
SFP.....................................................................110
XFP.....................................................................110
repair of router or components..................................197
replacing
AC power supply cord.........................................118
air filter.................................................................94
craft interface.......................................................89
DC power supply cable.......................................119
DPC....................................................................106
fan trays.......................................................92, 194
power system components.................................112
Routing Engine...................................................102
SCB.......................................................................97
RFI.............................................................................176
RJ-45 cable connector pinouts....................................185
RJ-45 cable connector pinouts (auxiliary and console
ports)......................................................................185
router
component overview..............................................5
configuration........................................................61
installing with lift..................................................45
installing without lift...........................................187
parts list................................................................38
physical specifications............................................5
unpacking.............................................................37
weight.....................................................................5
Routing Engine
boot sequence......................................................16
components..........................................................14
description............................................................14
maintaining..........................................................70
management ports
cable and wire specifications.......................183
pinouts for cable connections.............................185
ports.....................................................................16
description.....................................................16
See also auxiliary port, console port, Ethernet
port
replacing.............................................................102
status indicator lights............................................14
taking offline.........................................................96
USB port...............................................................14
S
safety information......................................................125
See also warnings
safety standards.........................................................155
SCB
LEDs.....................................................................20
maintaining..........................................................70
replacing...............................................................97
SCBs
components..........................................................13
description............................................................11
LEDs.....................................................................13
seismic (earthquake)..................................................163
serial number
in output from show chassis hardware
command........................................................197
SFP
description..........................................................110
installing.............................................................112
removing............................................................110
shipping container
unpacking.............................................................37
weight...................................................................37
shipping crate
repacking............................................................204
show chassis alarms command........................80, 82, 84
show chassis DPC command.......................................83
show chassis DPC detail command..............................83
show chassis fpc command
for DPC status.......................................................72
show chassis fpc pic-status command..........................74
show chassis hardware command.............................197
signal dispersion........................................................179
signaling, distance limitations....................................176
single-mode fiber-optic cable See cable, fiber-optic
site
electrical wiring specifications............................176
environmental specifications..............................163
preparation
checklist........................................................29
routine inspection.................................................67
Index
213
Index