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modules (PDMs), and up to nine AC or DC power supply modules (PSMs). The PSMs connect to the top
and bottom power backplanes that distribute the output voltages produced by the PSMs to the router
components.
Table 18 on page 59
describes the MX2008 AC power components.
CAUTION:
The MX2000 line of routers configured for three-phase wye AC input power must use
only three-phase wye AC PDMs and three-phase AC PSMs. The systems configured
for three-phase delta AC input power must use only three-phase delta AC PDMs and
AC PSMs. The systems configured for single-phase AC input power must use only
single phase AC PDMS and AC PSMs.
NOTE:
The MX2008, MX2010, and MX2020 routers support the same power modules (AC/DC
PSMs and AC/DC PDMs).
Table 18: MX2008 DC Power Components
Component
DC power system
describes the MX2008 DC power components and
Do not mix AC and DC PSMs or different PDM types within a single system.
Description
The MX2008 DC power system comprises three components: nine
PSMs, two PDMs, and a power midplane. The power system distributes
power from a pool of 22.5 KW (20 KW for PSM nonredundant and
2.5 KW reserved for PSM redundancy). This pool provides power to
10 line-card slots, two fan trays, two RCBs and eight SFBs.
Table 19 on page 61
59
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