Juniper Networks MX480 - Manual (Page 324)

Figure 130: AC Plug Types
WARNING: The AC power cord for the router is intended for use with the
router only and not for any other use.
WARNING:
Translation from Japanese: The attached power cable is only for this product.
Do not use the cable for another product.
NOTE: In North America, AC power cords must not exceed 4.5 m
(approximately 14.75 ft) in length, to comply with National Electrical Code
(NEC) Sections 400-8 (NFPA 75, 5-2.2) and 210-52, and Canadian Electrical
Code (CEC) Section 4-010(3). You can order AC power cords that are in
compliance.
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MX480 3D Universal Edge Router Hardware Guide