MX2000 DC Power Distribution Module (240 V China) Description
In the DC (240-V China) power configuration, the MX2000 router
contains up to four DC PDMs (240-V China) located at the rear of
the chassis in slots
PDM3/Input1 (bottom to top). A minimum of one PDM is required
per subsystem (two PDMs per MX2020 chassis) for nonredundant power.
The DC PDMs provide power interface to nine power supply modules (PSMs).
Four PDMs provide full redundancy for the MX2020 router. In a redundant configuration, a total of thirty-six (9-feed DC PDMs) are supported.
The power backplane for a subsystem distributes regulated 52 VDC to all boards supplied by that subsystem.
Each DC PDM (240-V China) has nine DC inputs, (see Figure 1).