Figure 74: Typical DC (240 V China) Source Cabling to the Router
g100398
Power plant and batteries
in same building
Safety ground
connection
AC
Plant
controls
Rectifiers
Batteries
DC power supply on MX2010
Chassis grounding point
( central office ground)
Central office
secondary
DC power
distribution
All DC PSMs in a subsystem share the load. If one PSM fails in a redundant configuration, the remaining
PSMs provide power to FRUs. Up to nine PSMs might be required to supply power to a fully configured
router. A portion of power from each zone is reserved to power critical FRUs. These FRUs allow the system
to operate even if power to a complete zone fails.
CAUTION:
You must ensure that power connections maintain the proper polarity.
The power source cables might be labeled (+) and (-) to indicate their polarity. There
is no standard color coding for DC power cables. The color coding used by the external
DC power source at your site determines the color coding for the leads on the power
cables that attach to the terminal studs on each PDM.
CAUTION:
The two input sources must have similar grounding type because the PSM
can see 480 V if one source has positive ground (-240 V), and the other source has
negative ground (+240 V). This might damage the PSM.
WARNING:
For field-wiring connections, use copper conductors only.
CAUTION:
Power cords and cables must not block access to device components or
drape where people could trip on them.
200
Содержание MX2010
Страница 1: ...MX2010 Universal Routing Platform Hardware Guide Published 2019 12 03...
Страница 28: ......
Страница 30: ...MX2010 Power System Description 95 MX2010 Cooling System Description 45 4...
Страница 54: ...MX2010 Router Overview 3 MX Series Router Interface Names MX2010 Port and Interface Numbering 90 28...
Страница 144: ...MX2010 DC Power 48 V System Electrical Specifications 201 122...
Страница 146: ......
Страница 233: ......
Страница 258: ...Figure 85 Removing an AC Power Distribution Module Before Installing the MX2010 Router D g007439 241...
Страница 259: ...Figure 86 Removing a DC Power Distribution Module 48 V Before Installing the MX2010 Router D g007431 242...
Страница 273: ...Figure 98 Loading the MX2010 Router into the Rack g007436 256...
Страница 294: ...Figure 113 Reinstalling an AC Power Distribution Module g007440 D 277...
Страница 295: ...Figure 114 Reinstalling a DC Power Distribution Module 48 V D g007432 278...
Страница 373: ...4 PART Installing and Replacing Components Installing Components 359 Replacing Components 429...
Страница 374: ......
Страница 620: ......
Страница 715: ...6 PART Troubleshooting Hardware Troubleshooting Components 703...
Страница 716: ......
Страница 744: ......
Страница 767: ...Remove the shipping brackets and hardware and set them aside Guide the router in the shipping crate 754...
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Страница 775: ...763...
Страница 783: ...772...
Страница 796: ...Jewelry Removal Warning 787...
Страница 799: ...Operating Temperature Warning 790...
Страница 808: ...DC Power Disconnection Warning 799...
Страница 812: ...DC Power Wiring Sequence Warning 803...
Страница 815: ...DC Power Wiring Terminations Warning 806...