Juniper Networks M10i manual DC Power, Connection, and Cable Specifications

Appendix C: Power Requirements, Guidelines, and Specifications

Table 21 on page 179 provides specifications and Figure 56 depicts the plug on the AC power cord provided for each country or region.

Table 21: AC Power Cord Specifications

Country	Electrical Specification		Plug Type
Australia	240	VAC, 50 Hz AC	SAA/3
Europe (except Italy and United Kingdom)	220 or 230 VAC, 50 Hz AC		CEE 7/7
Italy	230	VAC, 50 Hz AC	CEI 23-16
Japan	110	VAC, 50 or 60 Hz AC	JIS 8303
North America	120	VAC, 60 Hz AC	NEMA 5-15P
United Kingdom	240	VAC, 50 Hz AC	BS89/10

Figure 56: AC Plug Types

NOTE: Power cords and cables must not block access to router components or drape where people could trip on them.

For information about the AC power supply, including electrical specifications and a description of components, see “AC Power Supply” on page 20. For instructions on connecting the power cord and grounding cable during initial installation, see “Connecting Power to an AC-Powered Router” on page 62. For instructions on replacing the AC power cord, see “Disconnecting and Connecting AC Power” on page 110.

DC Power, Connection, and Cable Specifications

The DC power supplies in slots P/S 0 and P/S 1 must be powered by dedicated power feeds derived from feed A, and the DC power supplies in slots P/S 2 and P/S 3 must be powered by dedicated power feeds derived from feed B. This configuration provides the commonly deployed A/B feed redundancy for the system. Most sites distribute DC power through a main conduit that leads to frame-mounted DC power distribution panels, one of which might be located at the top of the rack that houses the router. A pair of cables (one input and one return) connects the field-wiring terminals to the power distribution panel.

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