Cisco XR 12410 - Manual (Page 21)

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Cisco XR 12410 and Cisco XR 12810 Router Installation Guide
OL-17441-01
Chapter 1 Product Overview
Physical and Functional Description of Router
DC Power Supplies
A DC powered router consists of two DC PDUs and DC PEMs. DC power to the
router is provided from cables from a DC power source that are connected to
threaded DC-input terminal studs on the chassis rear panel as shown in
Figure 1-5 .
Figure 1-5 DC Power Cables—2800 W DC PDU
Each DC PEM operates from a nominal source DC voltage of –48 to –60 VDC
and requires a dedicated 60-amp service.
Feed A2
-48/-60V
-40A MAX (2x)
+ + – –
-48/-60V
-40A MAX (2x)
+ + – –
129277
Ground
– 48/60V RTN
(+)
– 48/60V RTN
(+)
– 48/60V (–)
– 48/60V (–)
Feed A1