T4000 Power Management; T4000 Dc Power Cable And Lugs Specifications; Dc Power Cables; Table 49: Dc Power Cables Required - Juniper T4000 Hardware Manual

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T4000 DC Power Cable and Lugs Specifications

DC Power Cables

Copyright © 2013, Juniper Networks, Inc.
If the power is underprovisioned for your hardware configuration, power management
limits the number of FPCs brought online based on the following rules:
A maximum of six T1600 Enhanced Scaling FPC4 (Model: T1600-FPC4-ES) can be
online.
When one T1600-FPC4-ES is installed, a maximum of seven FPCs can be online.
When there are no T1600-FPC4-ES installed, a maximum of eight FPCs (a fully loaded
chassis) can be online.
For example, if there are seven online FPCs and you insert an T1600-FPC4-ES, the power
management feature will not power on the FPC.
NOTE: In the event of a chassis restart, master switchover, or router reboot,
the power management feature powers on the FPCs based on the setting of
the set chassis fru-poweron-sequence
CAUTION: If you do not configure the power management feature and you
are connecting three 80-A DC power cables to the six-input power supply
and the maximum power draw is exceeded, FRU states might change from
Online to Offline or Present, or the interfaces might flap, or some traffic might
drop.
Connecting DC Power to the T4000 Router (Three 80-A DC Power Cables to Six 60-A
Inputs) on page 133
Configuring DC Power on a T4000 Router on page 148
T4000 Power Management Overview
DC Power Cables on page 341
DC Power Lugs on page 342
You must supply DC power cables that meet the following specifications: 4-AWG
2
(21.2 mm ), minimum 90°C wire, or as required by the local code.
Table 49 on page 341 summarizes the number of DC power cables required, which you
must supply.

Table 49: DC Power Cables Required

Number of Inputs Connected
5
Appendix D: Power Guidelines, Requirements, and Specifications
command.
Power Cables Required
10
341