Juniper MX240 Hardware Manual page 240

MX240 Ethernet Services Router Hardware Guide
maintenance See maintenance guidelines
DPC...............................................................74
packing
router for shipment.....................................204
interface
network See DPC
interference
electromagnetic..................................................176
radio frequency...................................................176
J
Juniper Networks Technical Assistance Center
(JTAC).......................................................................79
L
laser safety guidelines................................................136
LEDs
AC power supplies................................................22
alarm (red and yellow on craft interface)
description.....................................................18
DC power supplies................................................24
DPC......................................................................20
host subsystem.....................................................19
on components.....................................................81
on craft interface..................................................80
power supplies......................................................19
safety warnings...................................................136
SCB.................................................................13, 20
link loss, calculating...................................................181
lithium battery compliance........................................159
lug for grounding cables.............................................165
lugs for DC power and grounding cables....................165
lugs for DC power cables............................................170
M
maintaining
air filter.................................................................68
DPC................................................................72, 74
fan tray.................................................................68
host subsystem.....................................................70
power supplies......................................................78
maintenance guidelines
DPC................................................................72, 74
DPC cable.............................................................74
overview...............................................................67
warnings.............................................................139
management
port See Ethernet port
manuals
comments on.....................................................xxvi
midplane........................................................................8
description..............................................................8
functions.................................................................8
212
Index
modal dispersion in fiber-optic cable.........................180
mode loss, higher-order.............................................179
multimode fiber-optic cable See cable, fiber-optic
N
NEBS standards..........................................................155
network cable See cable, fiber-optic; cable, DPC
notice icons...............................................................xviii
O
open-frame rack See rack
overview
router......................................................................3
P
parentheses, in syntax descriptions.............................xix
PEMs See power supplies
physical specifications....................................................5
ping command.............................................................79
pinouts
RJ-45 cable connector ports
(auxiliary/console)...........................................185
RJ-45 Ethernet cable connector port...................185
plug types
AC.......................................................................174
port
auxiliary See auxiliary port
console See console port
Ethernet See Ethernet port
power
budget calculation...............................................181
cables and cords See AC power cord
margin calculation..............................................181
requirements for hardware components.............171
surges.................................................................176
system
specifications...............................................165
power supplies
AC electrical specifications..................................172
cables See DC power
DC electrical specifications.................................167
description............................................................21
LEDs.........................................................19, 22, 24
maintaining..........................................................78
Power supplies
grounding...........................................................165
power system
AC electrical specifications..................................172
DC electrical specifications.................................167
troubleshooting.....................................................84
power system components
replacing.............................................................112
powering off the router................................................59