See Table - Juniper MX2020 Quick Start Manual

MX2020 3D Universal Edge Router Quick Start
56
Figure 38: Selecting AC Power Subsystem Feed Redundancy
PWR OK FAULT
INP0 INP1
Ensure that the voltage across the AC power source cable leads is 0 V and that there
3.
is no chance that the cable leads might become active during installation.
Using both hands, slide the PSM straight into the chassis until the PSM is fully seated
4.
in the chassis slot. Tighten the two captive screws to secure the PSM to the chassis.
Verify that the or
INP0 INP1
5.
LEDs are lit yellow if that input's voltage is in reverse polarity. Check the polarity of
the power cables to fix the condition (see
Table 9 on page 57).
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
6.
the strap to one of the ESD points on the chassis.
Move the switch to the on (
7.
Verify that the
8. PWR OK
about MX2020 AC PSM LEDs.
NOTE: The MX2020 router configured for three-phase wye AC input power
must use only three-phase wye AC PDMs and AC PSMs. The MX2020
router configured for three-phase delta AC input power must use
three-phase delta AC PDMs and AC PSMs. AC and DC PSMs or PDMs must
not be mixed within a single router.
ON
0 1
LEDs on the PSM are lit green steadily. The
Figure 39 on page 57
| ) position.
LED is lit green steadily. See
or
INP0
and
Table 9 on page 57 for information
Copyright © 2015, Juniper Networks, Inc.
INP1