Juniper MX2008 Hardware Manual page 574

AC-powered routers are shipped with three-phase electrical cords with grounding. Do not circumvent
this safety feature. Equipment grounding must comply with local and national electrical codes.
The delta cores in the terminal block are labeled as follows:
Terminal block labeled GND—Earth
Terminal block labeled A1
Terminal block labeled B1
Terminal block labeled C1
Terminal block labeled GND—Earth
Terminal block labeled A2
Terminal block labeled B2
Terminal block labeled C2
The wye cores in the terminal block are labeled as follows:
Terminal block labeled GND—Earth
Terminal block labeled A1
Terminal block labeled B1
Terminal block labeled C1
Terminal block labeled N1
Terminal block labeled GND—Earth
Terminal block labeled A2
Terminal block labeled B2
Terminal block labeled C2
Terminal block labeled N2
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